Best 1/4 mile times w/ evo3 + 550s

[andymoraitis]

Are you saying FMIC does not help that much.Without the fmic I saw 7-10counts of knock on a 14b at 22psi.Now with my fmic with the e16g at 24psi at the top of third I only see 2 counts of knock.Thats after a few hard pulls.The first few pulls 0 counts.

Come on Chris! Some of that's from my wonderful chip tuning parameters. In all seriousness, sounds like you've got an awesome tune on the motor and I thought you'd start to see a bit of knock at around 24. I went a bit conservative on your timing and we could have added one more degree to the pump gas tune, but I don't think it's worth it if you're seeing 2 counts of knock after a few pulls. That's about where I'd want to be on your setup. It's safe and it's making great power.

wow...wanna tune my car for me? haha

Sure, if you're interested in doing an EPROM ECU with a custom chip, we'll get her dialed in for sure. It's a minimalist setup, but it works.

Let me know.

I didn't run 11s with the 550s. But I did run 118.02mph with them. Injector duty cycle was over 100%, and I was running race gas. The next time I went to the track, I had 660s installed.

Josh,

I think your saving grace has been the 255/AFPR combo since the flow is so much better than the 190. At 25psi, I'm running out of steam with the 190's on 650 injectors. Just for kicks, what kind of A/F and timing were you running on your 11 second passes?

Andy

 

[Stoner]

I ran out of injector with the 550's around 21psi or so. They were hitting 95%, I now am running 770's and only getting 65% idc.

If you plan on maxing out this turbo get bigger injectors and some way to control them.

Andy, I noticed you are in Indiana, what part?

 

[andymoraitis]

I'm in Auburn (about 20 miles north of Ft. Wayne). I'd pay to go for a ride in your 11 second beast!

 

[dsm-onster]

I didn't run 11s with the 550s. But I did run 118.02mph with them. Injector duty cycle was over 100%, and I was running race gas. The next time I went to the track, I had 660s installed.

Thanx for clearing that up, Shape. I didn't think you hit 11s w/ the 550s. But your original post about your track times were a little unclear for me. But to still get 118 mph out of the 550s is a !

 

[Stoner]

You can ride for free, sign up on indystars.org and I will post when I am going to IRP or will be up in the Indy area, (I am about 1.5 hours south of Indy). I think we also might be having a Muncie track day this summer. I dont get up to Ft. Wayne often, I will definetely be at the SO this year again.

Sorry for whoring up your thread.

 

[andymoraitis]

No problem on the thread whoring (it's not my thread anyway). If you're going to Muncie this year, let me know when and I'll meet you there since it's only 100 miles from me. Deal on the ride as well.

Andy

 

[ShapeGSX]

I think your saving grace has been the 255/AFPR combo since the flow is so much better than the 190. At 25psi, I'm running out of steam with the 190's on 650 injectors. Just for kicks, what kind of A/F and timing were you running on your 11 second passes?

A:F ratio was 11.7 to 12.0:1 on Sunoco 117 octane NOS Supreme.

Timing was at 22 degrees peak.

I have to tune conservatively around the boost/torque peak. Then once the boost goes down a little, I can ramp up the timing quickly. I've gotten pretty good at it.

 

[Stoner]

Josh, have you tried running leaner than that? My car seems to like a pretty lean mixture, the last few times at the track I was running similar timing, 30 psi settling to 26ish and A/F ratio of 12.9-13.0:1, zero knock well maybe .1 knock retard. This was on C16 but I dont know how much of a difference that makes.

 

[ShapeGSX]

I've never tried running that lean before. My car seems relatively insensitive to A:F ratio changes when it comes to power. Timing is the bigger hammer.

 

[Tom N]

A:F ratio was 11.7 to 12.0:1 on Sunoco 117 octane NOS Supreme.

Timing was at 22 degrees peak.

I have to tune conservatively around the boost/torque peak. Then once the boost goes down a little, I can ramp up the timing quickly. I've gotten pretty good at it.

My tune was alot like that also.
I would have to take some timing out at peak torque than start running it way up in the top end.
I would run my a/f at 12.2-12.5 on c-16.

 

[mirkoelek]

My tune was alot like that also.
I would have to take some timing out at peak torque than start running it way up in the top end.
I would run my a/f at 12.2-12.5 on c-16.

how did you make that power on 16g my friend

 

[Tom N]

how did you make that power on 16g my friend

DSMlink and tuning.

 

[mirkoelek]

DSMlink and tuning.

cool, i do have the dsmlink + wideband, but there has to be something else..

other thing there is a lot of torque .... where did you get that from ...

maybe you wanna keep your secrets or what ....

 

[Tom N]

cool, i do have the dsmlink + wideband, but there has to be something else..

other thing there is a lot of torque .... where did you get that from ...

maybe you wanna keep your secrets or what ....

There is no secret. I just try get parts that all work well together and compliment each other. My entire mods list is in my car profile. There is nothing left out.
Only thing I can say is so many people think the turbo is done at 25 psi. I can tell you its not. You want to make that torque. Crank that boost way up. It is going to spike hard then settle in. That huge (30+ psi) boost spike is where that torque comes from.
With the times Josh (shapegsx) runs I would bet he isnt conservative with the boost either. I bet he see`s that same 30+psi spike that I see(on race gas).

 

[larsrya8]

There is no secret. I just try get parts that all work well together and compliment each other. My entire mods list is in my car profile. There is nothing left out.
Only thing I can say is so many people think the turbo is done at 25 psi. I can tell you its not. You want to make that torque. Crank that boost way up. It is going to spike hard then settle in. That huge (30+ psi) boost spike is where that torque comes from.

Are you using the 31mm internal gate or an external wastegate with the Evo 3? I know you said nothing is left out of your profile, but I'm still curious.

 

[Tom N]

Are you using the 31mm internal gate or an external wastegate with the Evo 3? I know you said nothing is left out of your profile, but I'm still curious.

Standard internal gate.
You can see pics of the engine compartment here. 91galantvr-4

 

[Stoner]

Tom I definately noticed a big difference in 24 psi to 30 psi even though it falls off up top. I agree that this turbo just loves the higher boost settings. Its gonna be hard to go to a bigger turbo and loose all of the EVO's quick spool snap your neck feeling.

 

[mirkoelek]

Tom I definately noticed a big difference in 24 psi to 30 psi even though it falls off up top. I agree that this turbo just loves the higher boost settings. Its gonna be hard to go to a bigger turbo and loose all of the EVO's quick spool snap your neck feeling.

you ran 11 sec with 16g, how hard you have to push to get there...

 

[larsrya8]

you ran 11 sec with 16g, how hard you have to push to get there...

30 psi on race gas.

 

[mirkoelek]

30 psi on race gas.

cool, i have stock 7bolt, is my head gasket and stock head studs going to hold 30psi.....im going to install water injection soon ... i think that would help .

 

[larsrya8]

cool, i have stock 7bolt, is my head gasket and stock head studs going to hold 30psi.....im going to install water injection soon ... i think that would help .

I forgot who, but one person was able to hold 40 psi with a stock head gasket and ARP head studs. I also forgot if they were over-torqued or not.

 

[mirkoelek]

I forgot who, but one person was able to hold 40 psi with a stock head gasket and ARP head studs. I also forgot if they were over-torqued or not.

yep but i dont have ARP Head Studs.... till now i had 23psi every day

 

[ICE_T]

20psi pump [email protected]
23psi race [email protected]

evo3 16g, fmic (26.5x6.5x3.5), MAF-T GM mas 3", RC 550, datalogger, TMO stageIII, and open exaust. I'm FWD using 24.5x8x15 M/T slick. Can toutch the 11's with Qaife LSD, but I change my setup for an agp l2r and new rebuilt motor with 2g pistons. Hope to do better.

 

[larsrya8]

yep but i dont have ARP Head Studs.... till now i had 23psi every day

I wouldn't go any higher... but you're welcome to try. As long as you don't knock too much the head shouldn't lift. 1G headstuds are 12mm while 2G are 11mm, which is why they are said to stretch easier than the 1G headstuds.

 

[mirkoelek]

I wouldn't go any higher... but you're welcome to try. As long as you don't knock too much the head shouldn't lift.

i wanna hit 11, i'll risk...happy boosting