1997 toyotya Na-t 389rwhp 372wtq @ 7.5 psi

[wishmatic]

Just finished my supra yesterday. I was having lot of problem with the 4runner distributor cap. please people dont use it. It doesn't fit well and it throws sparks all around the cap. Tuned by sqc tuning in albuquerque,nm. Here is what I have in the car.

Stock compression 10:1
super cheap ebay turbo t70 .68Ar- does the job for now
knock off 44mm wastegate w/ 5 psi spring
1jzgte 440 low impedance injector w/ resistor pack
94 supra lower intake runner
egr block off plate
aeromotive FPR
255 walbro pump
12 volt mod to fuel pump
HKs blow off valve
AEM EMS GM 3 bar gm air temp sensor
AEM widband
Greddy profec B spec II
Xs power manifold and dump
2jzgte spark plugs

[Bboy_Trevstuh]

Very nice the ebay t70 turbo seems to be doing ok. You get a video of the dyno run.

[wishmatic]

Very nice the ebay t70 turbo seems to be doing ok. You get a video of the dyno run.

I didn't have camera at that time. I totally forgot about it. Did about 14 runs. Was having lot of problems with the 4runner distributor cap. Sparks was jumping all around and was missing very badly. Hopefully the turbo last. Car is running really smooth. I wish I had some race gas otherwise we weren't about to stop. thanks

[Bboy_Trevstuh]

Take a pic of the engine bay when you get a chance, and that turbo clears with the 2jzge dizzy cap.

[samuel_mkiv]

I didn't have camera at that time. I totally forgot about it. Did about 14 runs. Was having lot of problems with the 4runner distributor cap. Sparks was jumping all around and was missing very badly. Hopefully the turbo last. Car is running really smooth. I wish I had some race gas otherwise we weren't about to stop. thanks

Congratulations, nice effect.
what was the problem withe the distributor cap?
how much fuel pressure you are running with?
how much is the ignitiontiming set?

I will dyno my car soon.
if I go after what injectors to cope with, I get out around 350whp if everything works well. 3bar with fuel pressure.
but if I get a little bit more then just simply nice.

[wishmatic]

Take a pic of the engine bay when you get a chance, and that turbo clears with the 2jzge dizzy cap.

Sure. I will post one tomorrow. The turbo clears fine. It just little tight on one side. In order to make the 4 inch tube fit, you probably need to buy longer silicon coupler otherwise it wont fit or have a turbo housing with 3 inch inlet.

[wishmatic]

Congratulations, nice effect.
what was the problem withe the distributor cap?
how much fuel pressure you are running with?
how much is the ignitiontiming set?

I will dyno my car soon.
if I go after what injectors to cope with, I get out around 350whp if everything works well. 3bar with fuel pressure.
but if I get a little bit more then just simply nice.

The toyota 4runner cap looks like it fits but it doesn't. It burned my rotor. The inside of the cap was crushed making sparks jump all around. It caused my car to miss around 4000 rpm. I will post a picture tomorrow. You could even see the sparks when I had the 4 inch inlet tube on. People use it to clear the 4 inch inlet tube. It didn't work for me at all. It cause more problem then help.

The fuel pressure was around 45 to 50
I am still learning how to tune AEM from my friend. Man you could do so much with AEM. It will take me a while to completely learn it.
If you looking around 350hp to 400hp, I found 1jzgte 440cc low impedance with resistor the best. They fit perfect and are very cheap on ebay. around 60 bucks. it wont fit a 97 or 98 without a 93-96 lower runner. I found that out later. But found one for 50 bucks. Do you also have a aftermarket fuel pump?

[wishmatic]

I posted the clearance pictures of supra oem cap and also toyota 4runner cap which was causing so much problems.

[samuel_mkiv]

The toyota 4runner cap looks like it fits but it doesn't. It burned my rotor. The inside of the cap was crushed making sparks jump all around. It caused my car to miss around 4000 rpm. I will post a picture tomorrow. You could even see the sparks when I had the 4 inch inlet tube on. People use it to clear the 4 inch inlet tube. It didn't work for me at all. It cause more problem then help.

The fuel pressure was around 45 to 50
I am still learning how to tune AEM from my friend. Man you could do so much with AEM. It will take me a while to completely learn it.
If you looking around 350hp to 400hp, I found 1jzgte 440cc low impedance with resistor the best. They fit perfect and are very cheap on ebay. around 60 bucks. it wont fit a 97 or 98 without a 93-96 lower runner. I found that out later. But found one for 50 bucks. Do you also have a aftermarket fuel pump?


I have 440cc injectors from a mk3, with resistor.
tt hg.
walbro fuel pump.
stock fuel pressure.
t61 turbo.
i have test drive my car with 9psi turbo pressure,, ´works nice for my no missfire up to 7000rpm.

[wishmatic]

I have 440cc injectors from a mk3, with resistor.
tt hg.
walbro fuel pump.
stock fuel pressure.
t61 turbo.
i have test drive my car with 9psi turbo pressure,, ´works nice for my no missfire up to 7000rpm.

So you had no problem with the 4runner dizzy cap. I dont know why its not working for me. Maybe its squeezing on the rotor. I checked everything to see if its right. I still the have the cap. I might give it a try again. But this time I just have keep I out, if it missfire.
Do you know anything else that's out like a aftermarket distributor that might fit well.

[samuel_mkiv]

did some tuning tonight maxed out at about 12psi and when hittin 12psi at around 4-4500rpm it misfires badly... 4runner cap here aswell.. i need to investigate.

[Tuner562]

I thought 1jz injectors were side feed?

[wishmatic]

did some tuning tonight maxed out at about 12psi and when hittin 12psi at around 4-4500rpm it misfires badly... 4runner cap here aswell.. i need to investigate.

Yeah man. something is going on. I think something is wrong with the firing order listed in this form or the cap is squeezing the rotor. Did you put the stock cap back on. good luck

[wishmatic]

I thought 1jz injectors were side feed?

The 1jz are top feed but low impedance. The 2jzgte are side feed. 1jzgte injector are cheap and all you need is a resistor pack. I have individual resistors on each injector about 6.8 ohms 25 watts. ijz injector are very cheap and probably way better than rc or any other injector. Its weird actually because lucas is the one that makes the injector and Rc, precision do is stamp there own name on it.

[turbodremz23]

nothing wrong with the 4-runner dizzy cap. Im running one on my SC300 with absolutely zero issues. There are 2 different v-6 4-runner dizzy caps, you need to double check and make sure you have the right one, cause it should work with no problems with the stock rotor. and if your putting down 389rwhp @7.5psi it really makes me wonder what I was making @9psi on the stock compression, and what I will be making now with the new setup @9psi...

[wishmatic]

nothing wrong with the 4-runner dizzy cap. Im running one on my SC300 with absolutely zero issues. There are 2 different v-6 4-runner dizzy caps, you need to double check and make sure you have the right one, cause it should work with no problems with the stock rotor. and if your putting down 389rwhp @7.5psi it really makes me wonder what I was making @9psi on the stock compression, and what I will be making now with the new setup @9psi...

I do have the right one. Other people are having the same problem. I did about 14 run on dyno. And when I had the 4runner cap it was the same problem everytime. sometimes it hard to notice until you dyno tune it and actually get to see the plot. Maybe the firing order on club na-t forum is wrong. not sure. I know I am not taking a chance again. I already tried it twice. I probably could have made little bit more than 389 hp. I found out I had a huge exhaust leak by my egr block of plate.

[samuel_mkiv]

Yeah man. something is going on. I think something is wrong with the firing order listed in this form or the cap is squeezing the rotor. Did you put the stock cap back on. good luck

no still running with 4 runner cap.
it seems to work now,
I have some misfires sometimes, but I think it may be due to the spark plugs. running with BCPR7ES.
I will reduce the gap to 0.55 on the spark plugs, and we'll see how it works.
my mapecu stopped working for some strange reason, the lights flash only once. then it does not work.

dio runn withe the stock cap now.?

[theclassic32]

well im going to be the first to say that you are not making 389whp at 7.5psi.....

you have no headwork or cams....unless you do and you never stated....also on what dyno was this again?

everyone i have ever known including me has made around 300whp on 8psi...so its kind of hard to believe your making that on 7.5psi...with pretty much a stock motor....

either way congrats on boosting....its so much fun...

[wishmatic]

well im going to be the first to say that you are not making 389whp at 7.5psi.....

you have no headwork or cams....unless you do and you never stated....also on what dyno was this again?

everyone i have ever known including me has made around 300whp on 8psi...so its kind of hard to believe your making that on 7.5psi...with pretty much a stock motor....

either way congrats on boosting....its so much fun...

Believe it or not man I have the dyno sheet to proof it. I was only looking for 300 to 350 hp but I got more than I ask. My map was reading 7.5 psi when i did the run. I think is dynojet not sure. I didn't put a thicker headgasket beacuse I probably would need twice the boost to put the same amount of power plus I would loose 50 or more lbs of torque. I could have made little more if my egr block plate was not loose. If you want someone to retune your car, I could tell my friend. His website is sq-creations.com. You could see some of the cars he tuned, mostly honda. He pretty much tunes a car every day.
thanks

[wishmatic]

no still running with 4 runner cap.
it seems to work now,
I have some misfires sometimes, but I think it may be due to the spark plugs. running with BCPR7ES.
I will reduce the gap to 0.55 on the spark plugs, and we'll see how it works.
my mapecu stopped working for some strange reason, the lights flash only once. then it does not work.

dio runn withe the stock cap now.?

I am using stock cap. My aem wasn't turning on either sometimes and it was not kicking in the fuel pump. I had to do a 12volt mod to fuel pump. Check the efi main relay. Mine sometimes goes off and the ecu doesn't turn on. I just take it out and put it back in and it start right up. Dont use 2jzge spark plugs, they will run hot. I used the 2jzgte spark plugs but dont get those ngk that has needle point at the end. They break off too easily. I tried the 4runner cap with new wires and plugs but response was negative. let me know when you finish tuning. good luck.

[domantas]

my friend you are using 44mm hks knock off with ebay 5.25psi spring? If so you are having creep issues, mines creaped to 15psi... Are you having problems with that?

[wishmatic]

No. I have a boost controller to cut off boost exceeding 10 psi. This wastegate are really okay. The boost gauge shows 8.5 psi but my map sensor reads 7.5 psi. I loose little boost due to high alititude. I bought the spring from somewhere else. I have the same wastegate on my rx7 for 3 years. No problem at all.

[Na-Ta10secstreetcar]

Looking good!