400 whp - Stock Turbo - E85 Army
Jan 9, 2009, 06:33 PM
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400 whp - Stock Turbo - E85 Army
Just amazing power for the stock turbo and mod level. This is a new stock turbo benchmark on our dyno. Previous benchmark was 385whp.
2006 Evo GSR
Mods:
AEM intake
RC 1000cc injectors
Walboro FuelPump
Cosworth M2 cams
3" TBE no muffler or cat
GM 3port boost solenoid (ecu-controlled boost)
Stock ECU map switching (between 91 octane and E85) via TephraMod 5.10
GST Custom Dyno tune for 91 octane and E85
Stock turbo
Stock 02 housing
Stock FMIC
Stock IC pipes
Stock MAF
E85 Power:
400whp / 384wtq
2 runs back to back:
E85 vs 91 octane:
E85 +66whp / +67wtq over 91 octane
Boost 91 vs E85:
2006 Evo GSR
Mods:
AEM intake
RC 1000cc injectors
Walboro FuelPump
Cosworth M2 cams
3" TBE no muffler or cat
GM 3port boost solenoid (ecu-controlled boost)
Stock ECU map switching (between 91 octane and E85) via TephraMod 5.10
GST Custom Dyno tune for 91 octane and E85
Stock turbo
Stock 02 housing
Stock FMIC
Stock IC pipes
Stock MAF
E85 Power:
400whp / 384wtq
2 runs back to back:
E85 vs 91 octane:
E85 +66whp / +67wtq over 91 octane
Boost 91 vs E85:
Last edited by GST Motorsports; Jan 10, 2009 at 05:47 PM.
Jan 9, 2009, 07:11 PM
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It looks like he was just able to use the boost of the stock turbo instead of let it taper off to redline.
EDIT:
But yeah, why is it spooling 400rpm's later and your ramping up the torque (IE: boost) so slow? Are you trying to ramp it up hard in the end by bringing it in so soft?
EDIT:
But yeah, why is it spooling 400rpm's later and your ramping up the torque (IE: boost) so slow? Are you trying to ramp it up hard in the end by bringing it in so soft?
Last edited by dan l; Jan 9, 2009 at 07:14 PM.
Jan 9, 2009, 07:14 PM
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On E85 it is running 29psi peak dropping to 23.5psi at 7000 rpm.
On 91 it is running 24.5psi peak dropping to 21.5psi at 7000 rpm.
All the E85 tunes so far on our dyno produce more peak HP than peak TQ.
We have worked hard to calibrate our dyno so that it creates loads pretty much identical to the street.
Here is a overlay of two logs from 3rd gear on a Evo 9 (not the one in the OP), thick plot is on the dyno, thin plot is on the street. (street pull was started a little later)
As you can see our loading on our Mustang dyno is spot on with the loading on the street in 3rd gear.
Last edited by GST Motorsports; Jan 9, 2009 at 07:27 PM.
Jan 9, 2009, 07:17 PM
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It looks like he was just able to use the boost of the stock turbo instead of let it taper off to redline.
EDIT:
But yeah, why is it spooling 400rpm's later and your ramping up the torque (IE: boost) so slow? Are you trying to ramp it up hard in the end by bringing it in so soft?
EDIT:
But yeah, why is it spooling 400rpm's later and your ramping up the torque (IE: boost) so slow? Are you trying to ramp it up hard in the end by bringing it in so soft?
On E85 it is at 20psi at 3000, 25psi at 3300, and 29psi at 3800
On 91 it is at 20psi at 3300, 24psi at 3800
I did do a test on this car when starting the E85 tune as I was curious:
I ran the exact same peak boost and curve as the 91 octane tune and I just tweaked the AFR and Timing and it made 368whp / 341wtq. Probably could have made more but I only did a couple pulls with that strategy as I was just curious what kind of gains it would make on E85 with the same boost level as pump gas.
For some reference of spool/torque curve differences between 3rd and 4th gear on our dyno you can reference this BBK equipped Evo 9 on E85, Dotted is 3rd, solid is 4th, about 500rpm difference between the gears.
Last edited by GST Motorsports; Jan 9, 2009 at 07:30 PM.
Jan 9, 2009, 08:28 PM
#7
NICE numbers. What AFRs are you shooting for these days? I am trying to decide if 12:1 is really where its at. I have been running 11.5:1 and just going off accel logs it doesnt seem that I have lost/nor gained. I know that when I had it at 10.6 on the first trip to the dyno before I pulled the 1680s out it was down on power. Its just that swing in between 11.5 and 12:1, I guess I need another trip back to see whats going on 
