Some PT61 Dyno results

[nolimits]

After finally getting the new Boost Logic trans in I got the car on the dyno for some answers. I hit 387whp/447ft lbs @16psi on PT61 (NA-T of course) with AEM EMS (unlocked). This was on 93oct on the stock longblock (incl. stock headgasket). Peak torque happened the moment sampling began (3900) and peak hp occured the moment I let off the throttle (7250rpm), so results could have improved slightly. Ran on a Dynojet 248C.

This comparison post comes with a question to those who've made similar power...how has your stock ignition held up? At 17psi I began to blow out the spark w/ a .032 gap. I could gap smaller, but I feel that I would only see a small positive result. I'm guessing I've hit the stock limits, and am contemplating a CDI unit of some kind, a wasted spark setup, or a COP.

[champazn]

Very nice man 387whp @16psi isnt to bad.. congrads bro!

[Supra4ever]

After finally getting the new Boost Logic trans in I got the car on the dyno for some answers. I hit 387whp/447ft lbs @16psi on PT61 (NA-T of course) with AEM EMS (unlocked). This was on 93oct on the stock longblock (incl. stock headgasket). Peak torque happened the moment sampling began (3900) and peak hp occured the moment I let off the throttle (7250rpm), so results could have improved slightly. Ran on a Dynojet 248C.


Congratulations, 447rwtq is awesome.

Do you have the dyno graph by any chance, I would love to check out your torque curve.

[Brown Duckz]

That's alot of torque... where is the dyno sheet. Also you're still on the stock head gasket @ 16lbs?

[nolimits]

I'll get it scanned and post it. I'm not real proud of the graph itself because boost fluctuated (up to 16.5/down to 15.5psi) due to my error control (EMS), giving me a wavy graph instead of a nice smooth line. I have to see what's off (I'm dead solid at 15psi). Yes, it's the stock headgasket.

[Jer]

Wow.. 16psi and 387/447 is HUGE on stock NA compression. No alky/methanol injection? Very good numbers.

[nolimits]

no meth/alcohol, although I'd love to try some out. First I have to resolve the boost control programming and ignition weakness...just haven't had any time since the dyno to mess around with it. I'd still like to get some feedback on how other's ignitions are holding up. I'm having a friend scan in the chart for me, so I should have that up briefly.

[nolimits]

http://memimage.cardomain.net/member_images/1/web/2077000-2077999/2077051_6_full.jpg

[nolimits]

My timing's pretty conservative yet. I didn't expect that kind of torque, but I would assume that the higher compression plays a role. I would have liked to sample sooner, but was out of time (and laptop battery). I floored it @~3000rpm at the same time I sampled, but the stall instantly jumped to ~3900.

[dejacky]

16psi on stock headgasket and stock compression and 93 octane pump gas? :wtf: Isn't that begging to blow up your motor? Btw, what is your timing set at? :runaway:

[nolimits]

No, I just don't buy into the internet hype of what I can and cannot do. The only reason I'm not pushing more boost is because the ignition currently can't keep up. Timing is ~16deg at full boost.

[Jer]

No, I just don't buy into the internet hype of what I can and cannot do. The only reason I'm not pushing more boost is because the ignition currently can't keep up. Timing is ~16deg at full boost.

No knock?

[SupaSupraSE]

How are you liking the turbo? Pics?

[Supra4ever]

I'd still like to get some feedback on how other's ignitions are holding up. I'm having a friend scan in the chart for me, so I should have that up briefly.

My ignitions held up fine at 14.5psi on 91octane gas, I am currently using NGK Iridium spark plugs gapped at .32mm

I think there are other NA-T members with stock ignition making 650+rwhp stock ignition, no HKS DLI.

Goodlord, you are the king of low end torque, 400rwtq at 3500rpm :ylsuper:

[nolimits]

No knock?

I'm showing a small amount of noise anytime into boost, nothing that's got me worried. If anything it reassures me that my knock sensor is actively working. I'm also running knock feedback through the EMS as a precaution.

[nolimits]

How are you liking the turbo? Pics?

I'm not sure how to answer that. It does its job and there's nothing wrong with it...but I crave larger. I just bore easy though.
I don't have any specific turbo pics, but there is an engine bay shot in this thread http://www.clubna-t.com/forums/showthread.php?t=41

[Kirk]

what is your base timing set at? thats crazy man...congrats!!

[nolimits]

My ignitions held up fine at 14.5psi on 91octane gas, I am currently using NGK Iridium spark plugs gapped at .32mm

I think there are other NA-T members with stock ignition making 650+rwhp stock ignition, no HKS DLI.

Goodlord, you are the king of low end torque, 400rwtq at 3500rpm :ylsuper:


Thanks for the feedback. Actually it's 447@3800....I sampled too late to see anything before that!!

[nolimits]

what is your base timing set at? thats crazy man...congrats!!

It's zeroed with the EMS. Base timing is no longer an issue since I'm in control of the curve.

[champazn]

Dam dude that is insane...

[Idrewfelix]

Wow.. mad props to you, esp boosting that much with the stock headgasket!

That A/R line is as straight as can be.

[brian_k03]

WTF....stock headgasket
damn.

[mogallo]

Look at the TQ numbers.... thats awesome!!!!!

[Idrewfelix]

Look at the TQ numbers.... thats awesome!!!!!

Thats the result of high compression right by utlizing the stock HG with 16 PSI right?

[Jer]

Look at the TQ numbers.... thats awesome!!!!!

Not to mention the power band starts off early and is pretty dayum flat which is not the norm for turbo charged vehicles. This is the EXACT reason I want to run stock compression and methanol injection to allow for ~25psi. Should be some stellar hp and tq with tons of low end response and power. Between that and doing a ball bearing Garrett the low end response should be pretty sweet.

Good to see man. :bigok:

[SupraGOM]

congrat great numbers....

[Brown Duckz]

Your car is a freak, it's making torque like a small-block. :nuts:

[DaveH]

Congrats man, very impressive with that much boost on stock HG. You def see spikes from the knock sensors when you get detonation, so just keep a eye on that. Are you tuning the AEM yourself? Is your dyno in Watertown? I know Andy at Dynotune is in Watertown as well.

[calvinx408]

Not to mention the power band starts off early and is pretty dayum flat which is not the norm for turbo charged vehicles. This is the EXACT reason I want to run stock compression and methanol injection to allow for ~25psi. Should be some stellar hp and tq with tons of low end response and power. Between that and doing a ball bearing Garrett the low end response should be pretty sweet.

Good to see man. :bigok:

its his high stall that why the power band is like that. BTW GREAT NUMBERS and which aem are you running the tt version or the na one?

[Brown Duckz]

its his high stall that why the power band is like that. BTW GREAT NUMBERS and which aem are you running the tt version or the na one?A higher stall is making the power band do what?

[QuikLex]

Great numbers man! Glad to see you did it on the stock head gasket. I was looking to see what the limits of it TRULY were.

[nolimits]

Congrats man, very impressive with that much boost on stock HG. You def see spikes from the knock sensors when you get detonation, so just keep a eye on that. Are you tuning the AEM yourself? Is your dyno in Watertown? I know Andy at Dynotune is in Watertown as well.

Andy was telling me just last week that you dynoed with him. I had some help from Joey@Excessive Autosports with the initial fuel/timing. I took it from there. Jeff Otto is a long time close friend of mine in Watertown, so I ran the car on his Dynojet. The knock sensors will spike, as you said, and I may have reached the limits of what I can get away with on straight premium...I just wasn't able to find out due to the ignition break-up. Another day I guess.

[nolimits]

A higher stall is making the power band do what?

I'm sure the stall creates some of the torque, and it deffinitely affects the rpm points. I'd have to check the logs, but I know I didn't rev that high. I probably cut out around 6500-6800.

[96sc3]

what injectors are you running?

[Jaxsc3]

please keep dyno results in the dyno tuning section (its dead in there)

[nolimits]

Precision 780cc

I didn't think of that until after I posted...I'm suprised nobody chewed me out about that :lol: Thanks for getting it moved!

[dejacky]

Update? How is the car holding up?

[nolimits]

I regapped to .028 and the car fell on it's face under boost...back to .032 and it's running great again. Daily Driven, no problems. I just went on a 900 mile road trip into high elevation on 90+ deg days, and it performed flawlessly. I'm happy with the performance for now, so I don't plan on any more major adjustments before winter.

[KeepBoostinya]

Yea i had problems with the gap at .028 as well, i use .032 is much better.

[scttboom]

Hey those are great #s

[2jzget]

How is the BL trans holding up. What about shift quality and shift quickness.

What torque converter and stall speed. Also how much boost can you make on the converter.

[nolimits]

BL trans is great....quick, firm shift...just the way I like it. I wasn't able to run timing retard in between gears with the stock trans due to slow shift reaction...now I can. Stall is a little low yet...maybe around 2800. I haven't really laid into it much...no reason to get it all heated up for no reason. I won't make it to the track this year.

[scttboom]

BL tanny is the shit for sure.

[dejacky]

nolimits,
what is the update on your car and how many miles have you put on it running 16psi on stock compression and stock headgasket?

[nolimits]

I didn't get to drive it much more before winter. I did discover my spark limitation was due to a cracked distributer cap, so that's been replaced. I also added a 2nd fuel pump, some AN line, electric cooling fan, some intake mani porting, meth, and ditched the AC during the down time. I plan on doing some more tuning very soon.

[dejacky]

didn't you also discover that you're not running on a stock 2jz-ge headgasket? I read one of your posts on another forums stating something like this??? ...something about the shop that last worked on the car installed a thicker headgasket, but you weren't sure which one?

[nolimits]

After comparing some timing numbers and compression results, I've been suspecting it. Compression showed 150psi across the board. I don't believe that to be a confirmation of any sort, but it is more in range with TT than NA motors. The timing is what's really been throwing up a flag. I'm currently @ ~21BTDC @ 15psi on 93oct pump. That's really all I have to go on.

Normally I'd be ecstatic to know that I've already got the thicker headgasket, but I do regret if I've given any false information.

[MikeS10]

ahh i was gonna say i'm gapped at .028 and have run (at tx2k6 road course) 22 psi NOT stock head gasket however, using stock ignition.....edit i guess i should have finished reading the second page. anywayz hope your car's doing well :)