94 Lexus SC300 Turbo install

[100mgbluepill]

I didnt buy one of marks kits but i used a lot of his parts. My setup:

Garrett T04B
XSPower Manifold
Blitz Downpipe
Marks oil line kit
50mm wastegate
TIAL bov
Ebay 2.5" aluminum piping
Standard intercooler with both inlet/outlet on the same side
SAFC
Wideband
Turbonetics Manual boost controller
OBX boost gauge

Other stuff that i needed:
2.5'-3" reducer (TB)
2"-2.5" (for compressor depending on how big yours is)
A lot of vacuum hose
mini filter for the exhaust side valve cover
exhaust wrap (i used the reflective stuff for my couplers, oil lines, and intake pipe. I then used the fabric stuff for the manifold/downpipe.
Cheap oil
I bought a gasket kit since i was having some oil leaks.
4runner distributer cap
Drilled bits
Self tapping screws
Gasket sealer

Something you may want:
http://img153.imageshack.us/img153/480/scbuild7bv3.th.jpg (http://img153.imageshack.us/my.php?image=scbuild7bv3.jpg)

A buddy to do all of the work while you take pictures :thumbup:

Now onto the install.
I first had a t57 with my kit but once we did the mock fit we noticed it hit the throttle body. I didnt get my t57 from mark and it was noticeably different than the others that ive seen. I then bought this garrett turbo and it fit so in she'll go :)

http://img81.imageshack.us/img81/8821/no4dw1.th.jpg (http://img81.imageshack.us/my.php?image=no4dw1.jpg)

We decided to tackle the hardest part first and drill the upper oil pan. We drilled a pilot hole then used a unibit to drill out the rest. After we drilled my buddy was very concerned about the amount of shavings there were so we dropped the oil pan. I HIGHLY RECOMMEND THIS! There is absolutely no way in hell anyone will be able to get the shavings out with the common oil flush or with brake cleaner. There are way to many crevices and bumps to get around!! Its a huge bitch but we pulled the oil pan, in order to get it out take off the exhaust side engine mount and pull the oil pan out from under that side. We then cleaned it up and put it back on ect. When you put it back on MAKE SURE you have the sump put of correctly and TIGHT otherwise the pump will NOT work and it will starve your engine and turbo of oil.

We then took a break and installed the safc/boost gauge.

http://img88.imageshack.us/img88/4215/scbuild4vk9.th.jpg (http://img88.imageshack.us/my.php?image=scbuild4vk9.jpg)

While my buddy was hooking that stuff up i started to pull shit to change all of the gaskets. Pretty self explanatory if you have ever changed your plugs. One thing we did different is we blocked off the egr with a little sheet of aluminum. I blocked off all of the vacuum lines except some of the important which we can see in these pics. If anyone thinks i did this wrong please LMK so i can fix it :)

http://img80.imageshack.us/img80/6662/scbuild16gb9.th.jpg (http://img80.imageshack.us/my.php?image=scbuild16gb9.jpg)
http://img80.imageshack.us/img80/8080/scbuild9nh9.th.jpg (http://img80.imageshack.us/my.php?image=scbuild9nh9.jpg)

Next we mounted the manifold and the turbo. My exhaust housing just barely clears the tb and the coupler so be sure and wrap that with some header wrap. Since i couldnt install my maf in front of my turbo since my air filter hit the fan house im having to use the stock 2nd peice of the intake piping. It actually fits good but looks really ghetto so when i get a chance ill replace that.

http://img88.imageshack.us/img88/9404/scbuild6eh0.th.jpg (http://img88.imageshack.us/my.php?image=scbuild6eh0.jpg)
http://img88.imageshack.us/img88/9957/scbuild12qp4.th.jpg (http://img88.imageshack.us/my.php?image=scbuild12qp4.jpg)
http://img227.imageshack.us/img227/1954/scbuild2pu1.th.jpg (http://img227.imageshack.us/my.php?image=scbuild2pu1.jpg)


We then ran the intercooler piping for my custom intercooler. It keeps the pipes really clean and short :)

http://img149.imageshack.us/img149/9673/scbuild28et0.th.jpg (http://img149.imageshack.us/my.php?image=scbuild28et0.jpg)
http://img144.imageshack.us/img144/4930/scbuild17si3.th.jpg (http://img144.imageshack.us/my.php?image=scbuild17si3.jpg)
http://img244.imageshack.us/img244/7591/scbuild18vm3.th.jpg (http://img244.imageshack.us/my.php?image=scbuild18vm3.jpg)
http://img148.imageshack.us/img148/4184/scbuild24tp3.th.jpg (http://img148.imageshack.us/my.php?image=scbuild24tp3.jpg)

We still have a couple of things to do such as the oil lines, boost controller, downpipe and some other stuff but we're basically done. Ill update this with more pictures when everything is complete. We will also clean everything up so its nice and shiny :)

http://img247.imageshack.us/img247/8198/scbuild26ki6.th.jpg (http://img247.imageshack.us/my.php?image=scbuild26ki6.jpg)
http://img247.imageshack.us/img247/6056/scbuild20rt5.th.jpg (http://img247.imageshack.us/my.php?image=scbuild20rt5.jpg)
http://img244.imageshack.us/img244/9040/scbuild25uf4.th.jpg (http://img244.imageshack.us/my.php?image=scbuild25uf4.jpg)

[100mgbluepill]

Almost done. Just waiting for the downpipe :)

http://img216.imageshack.us/img216/7476/almostub2.th.jpg (http://img216.imageshack.us/my.php?image=almostub2.jpg)

[LexusFTW]

Awesome install man! Good Work!

[100mgbluepill]

Ran into some snags when installing the oil line kit. For the oil feed line, the adapter plate doesnt fit into the block without an extension so i have to get one of those today.. Hopefully it will fit.

http://img227.imageshack.us/img227/410/oilkb6.th.jpg (http://img227.imageshack.us/my.php?image=oilkb6.jpg)

[98mkiv]

very nice, thanks for creating the thread.

[100mgbluepill]

We arent going to do anything tonight, its like 20 degrees and we dont really have anything we can do. Still waiting on the new wastegate spring, intercooler, and the downpipe.

[98mkiv]

that's a heat wave.... its 5 degrees here. 52" of snow so far. snow FTW!

[100mgbluepill]

Man, i wish we could get 50" of now :( We havnt even gotten an inch all season.

[98mkiv]

its awesome.

[100mgbluepill]

We got all of the lines hooked up last night. The kit that xspower DOES NOT fit without modification. We had to grind away at the block webbing and we had to get a 90* fitting for the oil pressure sensor because it hit the a/c compressor. I just got the downpipe in today so we will be firing her up tonight.

[Gunnar]

The union bolt was so much easier than trying to do that. I just screwed it in, hooked up the line to it, and went about my business.

[100mgbluepill]

We couldnt get mine off..

[LexusFTW]

The union is torqued to ~90 ft/lbs if I remember correctly. It would be a bitch to try to get it off with the motor in the car.

[100mgbluepill]

Final pictures before the intercooler is installed.
http://img233.imageshack.us/img233/3600/2ndwh1.th.jpg (http://img233.imageshack.us/my.php?image=2ndwh1.jpg)http://img230.imageshack.us/img230/9162/2nd1ym1.th.jpg (http://img230.imageshack.us/my.php?image=2nd1ym1.jpg)
http://img215.imageshack.us/img215/5899/2nd2fg4.th.jpg (http://img215.imageshack.us/my.php?image=2nd2fg4.jpg)http://img233.imageshack.us/img233/9157/2nd3cy3.th.jpg (http://img233.imageshack.us/my.php?image=2nd3cy3.jpg)
http://img230.imageshack.us/img230/6259/2nd4os9.th.jpg (http://img230.imageshack.us/my.php?image=2nd4os9.jpg)http://img219.imageshack.us/img219/4186/2nd5tc7.th.jpg (http://img219.imageshack.us/my.php?image=2nd5tc7.jpg)
http://img221.imageshack.us/img221/301/2nd6pd7.th.jpg (http://img221.imageshack.us/my.php?image=2nd6pd7.jpg)http://img233.imageshack.us/img233/5663/finalsv4.th.jpg (http://img233.imageshack.us/my.php?image=finalsv4.jpg)
http://img230.imageshack.us/img230/687/final1nv3.th.jpg (http://img230.imageshack.us/my.php?image=final1nv3.jpg)http://img230.imageshack.us/img230/8140/final2ce8.th.jpg (http://img230.imageshack.us/my.php?image=final2ce8.jpg)

[100mgbluepill]

http://www.youtube.com/watch?v=NgSPllQi9sQ

That was the very first start up. We accidentally uncliped one of the plug wires and it was shorting on the intake pipe :)

http://www.youtube.com/watch?v=txmfSMXrbjo

We tried to build some boost but as soon as we did the piping would fly off. Only thing left to do is install the intercooler which should come tomorrow. One problem, the vband is leaking at the top where the two halves connect. Anyone else having this problem?

[100mgbluepill]

Ok, we got everything hooked up and went out for a spin. So far we havnt built any boost while driving because after i reach 2000+rpm's and left off the gas it just stalls out. Ive heard of this happening with people that have 5speeds but this shouldnt happen since my car is always in gear? If its not a boost leak and is infact the retarded maf, what can i do?

P.S. The tial bov SOUNDS FUCKEN AWESOME!!!!!

[98mkiv]

have you tuned the safc yet? Do you have a WBO2?

[100mgbluepill]

We sort of tuned the safc, we didnt have much time so we just took it for a few spins just to see what would happen. Yes, we're running a wideband. Im pretty sure the car would run pig rich when i let off the gas causing it to stall. We tried adjusting the deceleration settings but that didnt change anything.

[100mgbluepill]

Well guys, i have officially built boost :) We put in new dec air settings and the car catches itself most of the time before it stalls. All we have to do now is tune the car, I cant wait!!

[Gunnar]

The union is torqued to ~90 ft/lbs if I remember correctly. It would be a bitch to try to get it off with the motor in the car.

Oh it was, believe me. :) A big 1/2 inch socket and ratchet with a gigantic breaker bar.

[Gunnar]

Well guys, i have officially built boost :) We put in new dec air settings and the car catches itself most of the time before it stalls. All we have to do now is tune the car, I cant wait!!

Congrats dude! I'm still waiting on my downpipe to get finished up, but I had to pull it out of the garage and onto the street for a few minutes last night and it made a few lbs on the way up the hill. :)

[100mgbluepill]

So ive been driving the car around today and its a freakin GAS GUZZLER! I havnt been boosting at all since we havnt been able to tune the car yet and its eating gas like crazy. What can this be? Also, the car is a vibrating nightmare because of the downpipe, say night night to comfort :(

[Gunnar]

Well, if you haven't tuned it yet it's possible it's just running ridiculously rich and that's why your gas mileage tanked.

I drove my car very shortly without the downpipe on it and it didn't vibrate any more than it did NA, it was just loud. Is your downpipe hitting something?

[100mgbluepill]

It was hitting the firewall before i got my flex pipe installed today. After the exhaust shop installed the flex pipe it cleared everything but now it vibrates even more... Now that i think of it, i think my safc is adding fuel when it doesnt need to be.. i think thats why my gas is so horrible.

[TRDmonkey]

Do you have a wideband?

[Gunnar]

That's odd. I'm waiting on the vband flange to be fixed on my downpipe but when I test fit it in my engine bay it didn't look close to hitting anything. You have the XS Power one right?

[100mgbluepill]

Do you have a wideband?

Yup, im waiting on a buddy so i can use his lc1 and be able to log and shit.

[100mgbluepill]

That's odd. I'm waiting on the vband flange to be fixed on my downpipe but when I test fit it in my engine bay it didn't look close to hitting anything. You have the XS Power one right?

No, im using a blitz downpipe.

[100mgbluepill]

http://img85.imageshack.us/img85/4291/interjw6.th.jpg (http://img85.imageshack.us/my.php?image=interjw6.jpg)http://img135.imageshack.us/img135/3732/inter1rv2.th.jpg (http://img135.imageshack.us/my.php?image=inter1rv2.jpg)
http://img85.imageshack.us/img85/6084/inter2hk2.th.jpg (http://img85.imageshack.us/my.php?image=inter2hk2.jpg)http://img135.imageshack.us/img135/3154/inter3ff6.th.jpg (http://img135.imageshack.us/my.php?image=inter3ff6.jpg)
http://img135.imageshack.us/img135/4720/inter4ne2.th.jpg (http://img135.imageshack.us/my.php?image=inter4ne2.jpg)http://img135.imageshack.us/img135/2448/inter5dz3.th.jpg (http://img135.imageshack.us/my.php?image=inter5dz3.jpg)
http://img221.imageshack.us/img221/9557/inter6dx6.th.jpg (http://img221.imageshack.us/my.php?image=inter6dx6.jpg)http://img135.imageshack.us/img135/5958/inter7gn8.th.jpg (http://img135.imageshack.us/my.php?image=inter7gn8.jpg)
http://img223.imageshack.us/img223/3571/inter9qr3.th.jpg (http://img223.imageshack.us/my.php?image=inter9qr3.jpg)http://img221.imageshack.us/img221/8974/inter8qb2.th.jpg (http://img221.imageshack.us/my.php?image=inter8qb2.jpg)

[TRDmonkey]

Looking good. Make sure that the piping doesn't hit the tire at a full tilt turn.

[100mgbluepill]

It doesnt, but i believe my piping coming off the compressor housing is resting on the front lca so when i go straight or left it vibrates really bad but when i go right its smooth sailing.

[Gunnar]

i believe my piping coming off the compressor housing is resting on the front lca

:ohnoes: that doesn't sound good

[100mgbluepill]

actually its resting on the rack/ inner tie rod. we need to trim alittle off the piping.

[100mgbluepill]

oh this is Brian, you forgot to log off my computer Bryce. oh and the setting on safc won't kick in till you TPS hits 70 percent so i dont think thats making it run rich/poor gas mileage. i think it might be a boost leak , cause lean in vacuum and rich under boost. when we get jasons lm1 in we can do some logging.

[100mgbluepill]

Final pictures before the new turbo is put in (bought a t61 for really cheap :))
http://img90.imageshack.us/img90/881/clean4rd5.th.jpg (http://img90.imageshack.us/my.php?image=clean4rd5.jpg)http://img529.imageshack.us/img529/4253/clean1db2.th.jpg (http://img529.imageshack.us/my.php?image=clean1db2.jpg)
http://img529.imageshack.us/img529/697/cleannp9.th.jpg (http://img529.imageshack.us/my.php?image=cleannp9.jpg)

Interior shot:
http://img529.imageshack.us/img529/7704/clean2tc6.th.jpg (http://img529.imageshack.us/my.php?image=clean2tc6.jpg)

The car has a few war wounds after the install, for example:
http://img223.imageshack.us/img223/7729/clean3cc8.th.jpg (http://img223.imageshack.us/my.php?image=clean3cc8.jpg)

When i was installing the manifold for the last time, i wasnt paying attention and rammed my dumptube right into the side :(

[Gunnar]

Congrats man, can't wait to see it with the 61 on it.

I finally drove my 67 today, and made 11 psi and blew an intercooler pipe off. :p

[100mgbluepill]

Word, ive been taking it easy since my car isnt tuned but ive hit 3psi just going through the neighborhood :)

[TRDmonkey]

Congrats man, can't wait to see it with the 61 on it.

I finally drove my 67 today, and made 11 psi and blew an intercooler pipe off. :p

LOL I was on a cruise last night with a couple local buddies and I blew a pipe off on the highway while it was raining.. and i had to fix it there on the side of the highway. I guess that one pipe has blown off so many times i had all the tools and jack with me. I actually find it kinda comfortable to work on the highway LOL.

[100mgbluepill]

Hmm, my downpipe is still resting against my firewall, what could i use to dampen the vibrations between the two? Cardboard wrapped in exhaust wrap?

[100mgbluepill]

http://www.youtube.com/watch?v=-6ckQKFVMy0

For you tial bov owners, think i should get a softer spring or does that look about right?

[100mgbluepill]

Also, ive been trying to figure out my vibrations. When i turn right all vibrations go away, when im coming to a stop/costing my vibrations go away, any other time the entire car vibrates really bad. Any ideas?

[100mgbluepill]

that ic piping that is on the rack on the right side has to be the problem , when you turn right , the motor shift to the left so it doesn't touch anymore. and when you accelerate the motor shifts to the right via torque from the engine . im almost sure its that plus the bad motor mounts. oh yah this is brian again.

[Gunnar]

LOL I was on a cruise last night with a couple local buddies and I blew a pipe off on the highway while it was raining.. and i had to fix it there on the side of the highway. I guess that one pipe has blown off so many times i had all the tools and jack with me. I actually find it kinda comfortable to work on the highway LOL.

Yup, I carry stuff with me too. It sucks, because until I get some good couplers and t-bolt clamps, I'll see a car I want to show what's up and I can't because it pops a pipe off every single time I go WOT. :owned:

[100mgbluepill]

Well so far ive done a quick run to 5psi and everything held up. When boosting, should the gauge be jumping around while going up or is that a sign of a boost leak?

[LexusFTW]

definitely a sign of a boost leak or faulty wastegate.

[TRDmonkey]

Yup, I carry stuff with me too. It sucks, because until I get some good couplers and t-bolt clamps, I'll see a car I want to show what's up and I can't because it pops a pipe off every single time I go WOT. :owned:

I carry extra t-bolts, 4-ply couplers, even extra piping lol. I just have alot of random shit in my car. I think i'm just going to go get that one pipe welded.

[Gunnar]

Yeah, definitely. Getting pipes consolidated and bead rolled is a near-future plan.

100mg, what's your name dude? I've been talking NA-T with you on ClubLexus for like a few months now and don't even know your name.

[100mgbluepill]

definitely a sign of a boost leak or faulty wastegate.

How could i check if its the wastegate? Im pretty sure i know what it is but id like to check and see if my wastegate is working or not. And to clear it up a bit, it shakes while the needle is going up, not when im at peak boost.

Gunnar: My name is Bryce, yours?

[Gunnar]

My name's Gunnar. :) I'm just that original with usernames.

Are your vacuum lines all good to go? Are you sure there wasn't any issue with you not removing the EGR completely?

[100mgbluepill]

The engine itself is running in tip top shape, just like a ge should ;) We tapped my intercooler piping for a fitting to the wastegate and its lose so i think thats where my leak is. We're going to find out tonight when we pressure test the system.

[Gunnar]

Yeah. I ran a vacuum line from one of my previously capped off vacuum ports on the throttle body down to my wastegate and it's worked perfectly so far.

[100mgbluepill]

Well, final update until the new turbo comes in. We tuned the beast to 8psi and OMFG it runs really really good and pulls super hard even with the smaller turbo. My buddy did a really conservative rich tune just to play it safe since i dont have my own wideband and im getting a new turbo soon so doing a really good lengthy tune wouldnt be worth it. What im most surprised about is the fact that none of my intercooler pipes/couplers blew off. I think the lowes couplers actually hold up really well, expecially compared to the rubber ones that come in the universal kits. (If you need a decent coupler on the spot, go to lowes or home depot and go to the plumbing section, their 2" couplers fit 2 1/2" piping, their 3" couplers are a little big but can be made to fit if need be)

P.S. Open dump tube is INSANE!!

[Gunnar]

I used hair spray on my pipes last night and it held 11 psi from a 67 just fine after that. The clutch didn't want to though. :(

[100mgbluepill]

FUCKEN FAILURE STRIKES AGAIN! After a couple of days of good running, my luck ran thin and disaster has struck. The cheapo oil line i used for my oil feed cracked and spewed oil EVERYWHERE. So now, not only is my engine bay full of fucking oil right after i had cleaned everything up but, my car is down once again and i will have to wait for a new oil line to come in. Does anyone know of any way i can cut the line before the spot where it broke and put the fitting there? I need this fucker to run, not only do i have to attend school but i have to work as well and a broken car wont get me to either....

[Gunnar]

FUCKEN FAILURE STRIKES AGAIN! After a couple of days of good running, my luck ran thin and disaster has struck. The cheapo oil line i used for my oil feed cracked and spewed oil EVERYWHERE. So now, not only is my engine bay full of fucking oil right after i had cleaned everything up but, my car is down once again and i will have to wait for a new oil line to come in. Does anyone know of any way i can cut the line before the spot where it broke and put the fitting there? I need this fucker to run, not only do i have to attend school but i have to work as well and a broken car wont get me to either....

I'd get ahold of DaveH and see if he can get you another feed line, he helped me out when I broke the tap off in my union bolt, had another one tapped and ready to send me in no time. I use a braided stainless steel feed line like the one in his kit and so far so good.

[98mkiv]

JEGS -4AN line with 2x -4AN fittings

free shipping and gets there in a day or two

[100mgbluepill]

T-61 came in :)
http://img134.imageshack.us/img134/4663/turbo2bp1.th.jpg (http://img134.imageshack.us/my.php?image=turbo2bp1.jpg)
http://img217.imageshack.us/img217/1457/turbo1jt1.th.jpg (http://img217.imageshack.us/my.php?image=turbo1jt1.jpg)
http://img217.imageshack.us/img217/5130/turboqm1.th.jpg (http://img217.imageshack.us/my.php?image=turboqm1.jpg)

[LexusFTW]

The turbo looks great! Keep us updated on how it performs!

[Gunnar]

Looks good man, you're gonna love it!

[100mgbluepill]

its like 30* outside, and im putting in this T61. Oh how cruel the weather is :(

[LexusFTW]

^
HAHA! Been there, done that. It sucks now, but you will have stories to tell later.

[Gunnar]

its like 30* outside, and im putting in this T61. Oh how cruel the weather is :(

Man, it sure is nice working on my car in a t-shirt and gym shorts in my heated garage. :dancingco

[LexusFTW]

Must be NICE! :thefinger

[100mgbluepill]

You and your garage, pfft. A true man works in cold weather while numb with bleeding hands ;)

Everything went smoothly except when i went to prime the turbo. I cranked the motor for a while to ensure i primed the turbo correctly and for some reason the turbo wont drain oil? When the car is on oil goes everywhere except through the turbo and into the drain line and back into the oil pan. Anyone know whats going on?

[LexusFTW]

I dont understand what you're saying...
So you get oil into the turbo but it doesnt drain?
How big is your drain line?
Is your center housing clocked?

[100mgbluepill]

Ya, the turbo wont drain. I thought i had my drain line pinched or something so i took it off but the turbo still wont drain. Im basically clueless...

[LexusFTW]

Hmm...are you sure the oil feed line is sending oil to the turbo?

[100mgbluepill]

Definetly, oil was leaking everywhere since it didnt have a place to go. I also tried just pouring oil through the turbo and it did nothing except sit at the top...

[LexusFTW]

I would go ahead and take the turbo off and check it out from the bottom. The easiest way would be to take the turbo apart on the exhaust side and leave the exhaust housing bolted to the manifold.

[100mgbluepill]

Guh, this blows :( I spent all of that time putting it on now i have to take it all apart again :(

[LexusFTW]

Ya I know man, it happens.
I spent almost an hour putting my intake manifold on thinking I could install my fuel rail with everything put together. Needless to say I had to do it alll over again. I feel your pain.
Wait until Mark can comment though. He may shine some light on this.

[100mgbluepill]

Well i already got it out, i had already unbolted everything so it was pretty simple to get it out. Ive noticed that its very very easy to blow through my older turbo but with this new one, its almost impossible.

[LexusFTW]

thats weird man. can you shine a light in there and see anything obvious?

[100mgbluepill]

Everything looks normal. I think i can see where the oil is getting stopped up though. Inside the inlet hole there is a little pin which i guess acts like a restricter and not letting the oil through as it should... Can anyone else with a t61 look through their inlet hole and tell me what they see?

[100mgbluepill]

Ugh, i just discovered something else... While i was doing this whole shibang, i managed to knock a peice of the compressor wheel off! Retarded....

[LexusFTW]

this is where you put everything down and wait until tomorrow to start back on it.

[98mkiv]

What you see is not a pin, it's the oil passage to the shaft... looks like a pin, but look closer.

def time to walk away for a day or so, then pick it up again.

Mark

[Gunnar]

You knocked a piece of the compressor wheel off...like...you broke one of the fins off? I'm hoping that's not what you meant. :(

[100mgbluepill]

Ya... i chipped a little peice off the edge :(

[Gunnar]

Ugh that's not good news. You may have to get a new center cartridge. :(

[100mgbluepill]

This turbo is kicking my ass... I cant even get the compressor wheel off? Its as if its glued on or something?

[100mgbluepill]

Well, got everything back together and i guess im going to buy another compressor wheel and try the t61 again later on. I got a 7psi spring for the tial bov and it still wont go off and i get mad compressor surge. Ive checked my hose and it doesnt have any tears and i have the brass rings around the fitting so i shouldnt be leaking.....

[LexusFTW]

how big is your vacuum line to the bov and are there any T's in the line? When I had my Tial BOV hooked up I had to use a pretty big vacuum line to get the response I wanted.

[100mgbluepill]

Its pretty big, ill stop by autozone and see if i can get a bigger one and maybe that will help. I dont have anything teed into it, i have it running off the power steering hose, should that be ok?

[100mgbluepill]

The TIAL BOV LIVES!! You hit it right on the nose lex, went to autozone and swapped out the hoses and as soon as i get on the road and let off i hear a PSHHH. Man, it made me extremely happy :)

FYI: 7psi spring for the GE is too low ;)

[100mgbluepill]

Haha, scored a vpc for $100 :) You guys know where i can buy some chips from?

[LexusFTW]

The TIAL BOV LIVES!! You hit it right on the nose lex, went to autozone and swapped out the hoses and as soon as i get on the road and let off i hear a PSHHH. Man, it made me extremely happy :)

FYI: 7psi spring for the GE is too low ;)

Awesome man! Im glad I could help.

As far as VPC chips, which one do you need? They go for sale on SF all the time, but I think MVP can get you the one you need.

[100mgbluepill]

Im not really sure which one i need. Im still on stock injectors so im not sure if the 440cc one with work. I know that i need an MKIII one though...

[LexusFTW]

May want to double check but this may be what you need.

HKS VPC Rom for 1989-91 Supra Turbo
11N: Stock Injectors
Part # Hk 21200-SUP0xxxx

[100mgbluepill]

Hmm, ill have to try and find one of those. MVP only had the 440cc and the 550cc for the mkiii. Any there any kind of "guide" to go off of for setting the vpc?

[100mgbluepill]

Yay, my retro fitted oil line started leaking really badly the other day so i went ahead and got the hose kit from jegs for $40 shipped 2nd day and its top notch quality. I would recommend this line kit for anyone who is looking to upgrade. So not only was i able to actually drive my car around today, this is the first time i was able to drive with the working bov. First time i got on it and let off i hear a PSHh... OMFG, i think my favorite sound from a turbo'd vehicle is the bov going off so to hear it makes me tingle inside :) Now i need to install this VPC, and get a compressor wheel for the t61 and install that and ill be on my merry way :)

[LexusFTW]

did you ever figure out the oil drain problem?

[100mgbluepill]

Im pretty sure the turbo itself is fine. When i tried it out i was using a cheap paper gasket which ripped apart when i took off the t61. After i got the t61 out i had a friend check it over and he said everything was fine and was convinced that it had to be the gasket it so when i get a new compressor wheel for it im going to try it again and see if i can get it to work.

[LexusFTW]

well keep us updated!

[100mgbluepill]

Will do, in the middle of February im getting about $2000 and im dumping all of it into the car :) I cant wait!

[100mgbluepill]

I guess i like to take pics :)

http://img141.imageshack.us/img141/6853/cleanfa9.th.jpg (http://img141.imageshack.us/my.php?image=cleanfa9.jpg)http://img227.imageshack.us/img227/9984/clean1gn1.th.jpg (http://img227.imageshack.us/my.php?image=clean1gn1.jpg)
http://img81.imageshack.us/img81/5673/clean2mm0.th.jpg (http://img81.imageshack.us/my.php?image=clean2mm0.jpg)http://img227.imageshack.us/img227/6706/clean3oe6.th.jpg (http://img227.imageshack.us/my.php?image=clean3oe6.jpg)
http://img141.imageshack.us/img141/6495/clean4ng7.th.jpg (http://img141.imageshack.us/my.php?image=clean4ng7.jpg)

Once i get the VPC and the T61 installed, im going to mock up a gte style manifold to fit on my runners, and prolly call it a day as far as the engine goes. After that gets done im going to get the exhaust done, then make the car clean with new wheels, 97+ conversion, and clean the interior up :) I cant wait!

[98mkiv]

I'm getting more and more attached to the SC's..... I like them more and more. Sweet setup, thanks for posting all the pics.

[Gunnar]

Did you paint the center console? It looks like mine (as you know) except I didn't paint the ends of the buttons like you did.

Your car looks good, hope all works out with the T61 swap.

[Gunnar]

I'm getting more and more attached to the SC's..... I like them more and more. Sweet setup, thanks for posting all the pics.

As well you should. :)

[100mgbluepill]

Ya i painted it, i think it makes the entire interior look a lot better :) I can wait until i get my black 3 spoke stearing wheel and remount the safc/boost guage in different places to get a cleaner look.

[100mgbluepill]

P.S. No, the gay yellow tibby is not mine. ;)

[Gunnar]

That's where I have my SAFC and it's convenient and looks good there I think.

[100mgbluepill]

Ya, once i get it tuned and everything im going to put all of the gauges and safc in the glove box.

[100mgbluepill]

Well, for the past few days the car has been doing something really weird. Ill go and start the car and let it warm up for like 10 mins. Ill drive it around for like 2 mins and then my cel light will pop on and the car will run like really weird. First off, it idles really rough, and whem i try to get on it, the car basically surges and never really winds out... Im going to check what code it is tomorrow and hopefully i can have this resolved atleast somewhat easily..

[98mkiv]

first off, pull the codes.

second.... LexusFTW - nice calls on this. Hit it square, good stuff.

[100mgbluepill]

Got code 12 and 52

[100mgbluepill]

I guess those codes are the knock sinsors malfuntioning? Anyone know how i can fix this? Also, what chip do i need to get that will work with stock injectors for my vpc?

[100mgbluepill]

After thinking about it for a little bit, im thinking the cel and weird driving is because i have the wrong plugs in. They're ngk's but i dont think they're the right temp so they maybe causing the knock. I orderd some NGK 3330's pregaped to .032 so hopefully when i put those in it will fix this little problem.

[LexusFTW]

if your plugs arent in the right heat range, that could definitely cause some problems. 3330s are the way to go.

As for the vpc, what you will need to do is use the chip closest to your injector size then use the fuel controller to take out or add fuel to compensate.

[Gunnar]

Pregapped to .032? Mine are gapped much tighter than that, per the thread on here about spark plugs.

[100mgbluepill]

Changed the plugs and im still getting a CEL. The plugs are gapped at .032 and my car starts to break up around 2200rpms and even if i press the gas down and wont go above that....

[LexusFTW]

check the voltage to your fuel pump. make sure your fuel pump is running properly.
We had a local supra with a bad fuel pump that wouldnt rev past 2500.

[100mgbluepill]

Its not the plugs or the pump. Before the cel comes on the car drives just fine..

[Unaturally_Asperated]

Why dont you replace the knock sensors then if that is the code that you are getting???

[100mgbluepill]

lol, i dont even know where my knock sensors are. :)

[Gunnar]

That still seems like a pretty big gap when the spark plug thread suggested they be gapped at like .24?

[98mkiv]

After thinking about it for a little bit, im thinking the cel and weird driving is because i have the wrong plugs in. They're ngk's but i dont think they're the right temp so they maybe causing the knock. I orderd some NGK 3330's pregaped to .032 so hopefully when i put those in it will fix this little problem.

When you get the plugs, gap them to .025" using feeler gauges (not the coin type gapper).

Also make sure your ignition wires are clear of any other wires (esp. the maf sensor)

lol, i dont even know where my knock sensors are. :)

They are on the drivers side of the block. No worries, they are not bad, so don't try to locate them.

If you're getting knock, tell us this: What is your AF? You could be going lean, and the way to find out is not by driving till you melt a piston. Use the force (AKA a wideband)

Mark

[100mgbluepill]

My af's are on the rich side. In the 12's from 1.5-2.5k then 11's from then up to wot.

[100mgbluepill]

regapped to plugs to .024 today. Still getting a cel after the car warms up and i start to drive around. Now, instead of breaking up at around 2200rpms it starts to break up at around 3k rpms.... Not really sure what to do now...

[Dramon]

Check ur timing?

[somy6]

my BOV is still not working it seems. Do i have to change all the hoses or which ones exactly?? Thanks in advance

[100mgbluepill]

before the cel comes on the timing is right.

[100mgbluepill]

my BOV is still not working it seems. Do i have to change all the hoses or which ones exactly?? Thanks in advance

One: If you have the 90* fitting supplied with the bov, dump it. Get a regular straight fitting for it and make sure you get a nice big hose. If that doesnt work, you can either heat up the stock spring and make it lighter. Or, you could get on ebay and buy like an 11psi tial bov spring and if none of that works, its your connection. Make sure you have it hooked up to a vaccum hose.

[100mgbluepill]

YAY! looked around today to make sure the knock sensors were all plugged in and one wasnt. I think it was loosened when we put the oil feed line in and when i was driving around it wiggled itself out. Needless to say, the car is running good again!. Now i need to install this vpc and the other t61 i got and ill soon be chasing some sti's :)

[100mgbluepill]

question, what will my car do when it max's out the injectors?

[Gunnar]

question, what will my car do when it max's out the injectors?

I'd imagine it'd run lean when it can't produce any more fuel.

[98mkiv]

question, what will my car do when it max's out the injectors?

depends....

if you have a wideband you will see it go lean (>11.5) and you can let off the gas.

If you don't have any way to know it's going lean, then what happens is the cylinder temps go up and you burn a hole in the top of your piston. Game over, start again :( don't do this.

[ElitistK]

if you have a wideband you will see it go lean (>11.5) and you can let off the gas.

you mean at redline, correct?
i took my car out for a short trip to groceries under 3k rpm around 16 AFR... i don't think i burned anything either.

[LexusFTW]

you mean at redline, correct?
i took my car out for a short trip to groceries under 3k rpm around 16 AFR... i don't think i burned anything either.

under light throttle it you will see leaner a/f. with a 16:1 a/f you didnt do any damage. Id tune for a 14.7:1 - 15:1 for a cruising a/f.

[98mkiv]

RPM is not as important as load. If you are making boost, then you're loading the motor. If you load the motor you need to add fuel. Loading the motor and running lean is a recipe for disaster. Look at this dyno sheet:

http://www.clubna-t.com/forums/showthread.php?t=2216

you will see as the HP increases, the AF goes richer....

[Dramon]

under light throttle it you will see leaner a/f. with a 16:1 a/f you didnt do any damage. Id tune for a 14.7:1 - 15:1 for a cruising a/f.

Do you have lots of tuning experience?

[98mkiv]

Dramon, do you disagree with the qoute? What do you suggest?

[Dramon]

Dramon, do you disagree with the qoute? What do you suggest?

Eh, 14.7 is good as far as a blanket number goes but you can go a little bit leaner in certain parts of your map based on how much advance or retard your ignition timing has.

If he's running on stock ECU i'd pay more attention to the fact that the car isn't going into open loop. After a while under light throttle just cruising you should see the afr fluctuate. On stock ECU you shouldn't have to really mess with light throttle portions of the fuel map as long as you're still on the stock injectors as the ECU automatically can compensate a certain percentage up or down in closed loop.

[98mkiv]

I might not be right on these points, so let me know as I did not re-read the whole thread.

First, he's got an OBD1 ecu, so all he can ever do is open loop. There is no feedback that is used fro self tuning the maps based on 02 inputs.

17, 15, 14 whatever is good, you go as lean as possible at idle then ramp down (go richer) as you load the motor. Idle should be as lean as possible while still retaining good response and smooth idle. After that, add fuel according to engine load. Once you're making significant HP you want to be in the 11.7 range.

Crusing is typically a very light load, so yep 14.5 is a decent range, and it's def open to debate, you may want a little more fuel economy, etc, so lean it out a bit, but as you stated you need to consider timing, etc. An EGT gauge would be helpful here.

I think we're saying the same thing on the afr's but the open/closed loop thing is a different story. OBD1 = open loop always, OBD2 = open loop under CEL or cold start (and a few other instances) and closed loop during warmed up operating and no CEL's.

Mark

[Bean]

I might not be right on these points, so let me know as I did not re-read the whole thread.

First, he's got an OBD1 ecu, so all he can ever do is open loop. There is no feedback that is used fro self tuning the maps based on 02 inputs.

17, 15, 14 whatever is good, you go as lean as possible at idle then ramp down (go richer) as you load the motor. Idle should be as lean as possible while still retaining good response and smooth idle. After that, add fuel according to engine load. Once you're making significant HP you want to be in the 11.7 range.

Crusing is typically a very light load, so yep 14.5 is a decent range, and it's def open to debate, you may want a little more fuel economy, etc, so lean it out a bit, but as you stated you need to consider timing, etc. An EGT gauge would be helpful here.

I think we're saying the same thing on the afr's but the open/closed loop thing is a different story. OBD1 = open loop always, OBD2 = open loop under CEL or cold start (and a few other instances) and closed loop during warmed up operating and no CEL's.

Mark

1) OBD1 ECUs have closed loop too. They use the stock oxygen sensors as feedback. If the O2 sensors are disconnected, it goes into a very conservative map with no feedback (open loop) and reads the map directly out of memory (preprogrammed) using just rpm, kvf, and tps to get the data

2) Running lean at light load is ok. 13-16:1 at atmospheric pressure (0psi) and a little above. Mind you, this is at part throttle; the kind of cruising stuff your car sees everyday. Its common since the car runs in closed loop on the stock ECU.

3) As I described above: OBD1 is most definitely closed loop. It doesnt fuss as much about it as OBD2 does... but it definitely runs closed loop under part throttle and under a certain rpm. OBD2s main advantage is that it has a MAF sensor... other than that, it fights you more than OBD1 does.

[100mgbluepill]

Well, im thinking im going to sell everything off, use this money im getting when i turn 18 and just do a 1jz swap until summer comes around. I love being na-t but the drivability and the little problems that occur weekly really take a toll especially since this is the daily and has to get me to school and work... After i have the 1j in and most of my turbo stuff sold off i should be sitting at $1000 to just hang on to until i have time to do another build with the 1jz. This is all a thought of course but id really like to have the drivability of a factory motor for the remainder of my school year... Anyone with thoughts please chime in :)

FYI: What i was going to do with the money i am getting was buy a t61 or similar, get the gte style manifold, buy a used ge motor, have it freshened up and have arp studs and thicker HG installed and just turn up the boost and hope for 400whp. (i was also going to purchase a 1jz auto tranny).

[100mgbluepill]

Well, just did a compression test and suprisingly i got 180 across the board. Now im not too sure if i want to do the swap or just get a bigger turbo... Think 180psi per cylinder would be good to build on?

[Gunnar]

A front facing intake manifold on a small turbo without a lot of boost is, from everything I've read, just going to give you more lag. I know you want it for the look of it and for the ease if intercooler piping, but from a performance standpoint I'd imagine you're better off with the factory intake.

[100mgbluepill]

If i keep the ge i wont be getting the ff manifold. I have other things i want to buy before i do that.

[98mkiv]

stick with the factory intake.

And Bean, do you have something somewhere (OE Manual) that describes the operation of OBD1? AFAIK OBD1 looks at the O2's basically as a health check it does not adjust fuel on the fly, nor does it have any sort of learned fuel trims that it leans overtime. Correct me if I am wrong.

[Curry]

Got a question for you 100mg.

You mentioned that you were able to set Decel Air to help the stalling issues... I thought this only worked on the hotwire type MAFS?

What settings did you use? Did it completely curb the stalling issues? I've got an auto tranny also and want to make sure I get the AFC setup properly.

[100mgbluepill]

From what i hear it doesnt work with karmen but as soon as i started messing with it, it helped with the deccelaration causing it not to just drop and stall out but kind of slowly deccel. (if that makes any sense....) It hasnt completely cured the problem but it sure did help. Just buy a vpc and ditch the maf if you really are worried about the stalling problems.

[Curry]

Sounds good. Thanks for the info.

[100mgbluepill]

Hehe, got lots of goodies in the mail :) Ill have a pretty big update within the next 2 weeks. Lots of changes.

[Bean]

stick with the factory intake.

And Bean, do you have something somewhere (OE Manual) that describes the operation of OBD1? AFAIK OBD1 looks at the O2's basically as a health check it does not adjust fuel on the fly, nor does it have any sort of learned fuel trims that it leans overtime. Correct me if I am wrong.

OBD1 is a universal standard. But no, OBD1s use stock oxygen sensors as feedback and WILL adjust fuel trims when under closed loop. And it DOES have learned fuel trims.

[100mgbluepill]

So its official. I cant tune for shit....

[98mkiv]

OBD1 is a universal standard. But no, OBD1s use stock oxygen sensors as feedback and WILL adjust fuel trims when under closed loop. And it DOES have learned fuel trims.

can you show me where it tells you this, I've never heard of this before and haven't heard of any discussion of this in the TSRM, which does describe it for OBD2, but not OBD1.

So its official. I cant tune for shit....

well, what's going on?

[100mgbluepill]

Im at 5psi around 3200 rpms and my afr is in the 14's... I cant get my safc to add fuel earlier in the rpm band and like 3700 rpms+ my afr is around the 10's and i cant get my safc to take away fuel... Im not saying the safc sucks, im admitting that i really really suck at tuning :)

[100mgbluepill]

Had a snow day today and it warmed up later in the day so i decided to put some parts on i had sitting in my room. I installed my egr block off plates, ran the throttle body coolant lines together, painted the valve covers black and did some cleaning in preperation for the t61 :)

Pics:
(Do my cams look like they should? There was a lot of buildup under the cams and inside the covers)
http://img228.imageshack.us/img228/1233/upak4.th.jpg (http://img228.imageshack.us/my.php?image=upak4.jpg)

Painting the covers:
http://img85.imageshack.us/img85/5755/up1yb6.th.jpg (http://img85.imageshack.us/my.php?image=up1yb6.jpg)

Done:
http://img85.imageshack.us/img85/3294/up2db7.th.jpg (http://img85.imageshack.us/my.php?image=up2db7.jpg)

I love not having the coolant lines attached to the throttle body and no egr, its so easy to take off the throttle body/plenum. :)

[Curry]

Engine bay looks great!!

[Gunnar]

Looks good. It's definitely much much easier taking things apart to get to the plugs now.

[Bean]

can you show me where it tells you this, I've never heard of this before and haven't heard of any discussion of this in the TSRM, which does describe it for OBD2, but not OBD1.



well, what's going on?


Its just been common knowledge for one thing. I've never owned anything BUT an OBD1 car before. If you want proof, check Page 39 in "Troubleshooting - 2jz-ge.pdf" under the Engines folder in the 95 Supra TSRM available here on the forums.
Should be page EG-419 in the fullblown TSRM


To obtain a high purification rate for the Co, Hc, and NOx components of the exhaust gas, a three-way catalytic converter is used, but for most efficient use of the three-way catalytic converter, the air-fuel ratio must be precisely contrlled so that it is always close to the stoichiometric air-fuel ratio.

The oxygen sensor has the characteristic whereby its output voltage changes suddenly in the vicinity of the stoichiometric air-fuel ratio. This characteristic is used to detect the oxygen concentration in the exhaust gas and provide feedback to the computer for control of the air fuel ratio


I wish I could get my engine bay that clean!!! LOL

[100mgbluepill]

Alright, the ultimate question. Map Ecu and pocket $100 or SAFC/VPC and sacrafice the $100?

[98mkiv]

VPC/SAFC seems to be more stable on OBD1

[100mgbluepill]

Haha, came home to some presents:
http://img86.imageshack.us/img86/2636/pict00013ds4.th.jpg (http://img86.imageshack.us/my.php?image=pict00013ds4.jpg)

[100mgbluepill]

Got the T61 installed today. I must say it spools a lot sooner than my garret and the sound of it winding down is pricless :) Also got some more stuff in the mail:

http://img225.imageshack.us/img225/7417/tipsgi3.th.jpg (http://img225.imageshack.us/my.php?image=tipsgi3.jpg)
http://img138.imageshack.us/img138/4431/tips1le4.th.jpg (http://img138.imageshack.us/my.php?image=tips1le4.jpg)

[100mgbluepill]

Today was an awesome day, got my exhaust work done and got my vpc installed. For the exhaust i got a 3" mandrel bent midpipe to 2 2.5" tail pipes to the magnaflow mufflers with the 4" tips.

Heres some pics and vid:
http://img219.imageshack.us/img219/7475/exhaust1rg3.th.jpg (http://img219.imageshack.us/my.php?image=exhaust1rg3.jpg)
http://img80.imageshack.us/img80/8681/exhaust2ra0.th.jpg (http://img80.imageshack.us/my.php?image=exhaust2ra0.jpg)

T61:
http://img134.imageshack.us/img134/8564/exhaustsa3.th.jpg (http://img134.imageshack.us/my.php?image=exhaustsa3.jpg)

Vid:
http://www.youtube.com/watch?v=-z5s3xMMb3E

[Curry]

Looks great! Must have been great finally tossing that stupid MAF. lol.

How does the car drive now?

[100mgbluepill]

OmG, actually being able to get on it and let off the gas without having to blip the throttle so it wouldnt die felt amazing! lol.. Car feels GREAT! theres virtually no lag and its almost instant boost. I HIGHLY reccomend getting exhaust work done, it makes all the difference especially with a bigger turbo.

[LEXXIS300]

Looks and sounds awsome, congrats! Cant wait to get mine.... More vids! :D

[100mgbluepill]

Thanks, ill get some vids driving around in a couple of days.

[100mgbluepill]

lol, im breaking lose on dry pavement at 4psi in first gear...

[Suprasonic]

Looks great! :thumbup:

[100mgbluepill]

Ok, i keep having a really lean spike around 3k rpms where no matter what i do my afr's are either 14 or 15 and then around 3.5k rpms it goes down to 11.2-5 all the way through the rpm band. Ive done the 12v mod and that didnt do a damn thing, anyone else having this problem?

[100mgbluepill]

http://img220.imageshack.us/img220/8436/dynocr9.th.jpg (http://img220.imageshack.us/my.php?image=dynocr9.jpg)

@6psi

271whp 269ft-lbs

[Curry]

Awesome numbers!! Congrats!

[100mgbluepill]

Couple vids:

http://www.youtube.com/watch?v=xsl1xORyuLI
http://www.youtube.com/watch?v=hWZD2ytjYzo&feature=user

[98mkiv]

6psi gets 271WHP... your stock setup was putting down somewhere about 160-170 so that's ~100WHP at only 6PSI!

I love seeing customers make power, it's awesome...!

[Bean]

Ok, i keep having a really lean spike around 3k rpms where no matter what i do my afr's are either 14 or 15 and then around 3.5k rpms it goes down to 11.2-5 all the way through the rpm band. Ive done the 12v mod and that didnt do a damn thing, anyone else having this problem?

Thats most likely the transition point between closed loop and open loop. Maybe. AFRs at that level at that rpm aren't going to hurt you.

[100mgbluepill]

Im at 4ish psi when its happening though?

[Bean]

Im at 4ish psi when its happening though?

I dont think that matters, the ECU doesnt know how to read pressure. It just knows how much airflow its getting (via karmen vortex input). Your map ecu essentially translates a 0 to 5v signal from its map sensor and Iat sensor into a frequency-based signal to the KVF pin on your ECU. Think of it as little pulses of high-speed morse code (kinda). So the ECU doesnt know any better, it has a preset time and place when it enters open-loop