2006 STi: 306whp, 335wtq on corn juice

[jswansti]

Figured I might as well throw up my numbers.

Engine:
Stock vf39 turbo, COBB tbe, APS 65mm intake, Walbro 255 fuel pump, DW 850cc injectors

Tuned on E85:
18psi- 306whp, 335wtq
15psi- 280whp, 320wtq

Tuned on 91:
15.5psi- 270whp, 265wtq

 

[jswansti]

This first graph is of the highest output pull on E85. I tuned on snow tires, Harvey said whp would be ~10 more with performance tires. We didnt use this map since he wanted to tone it down a bit for safety. put down ~311whp and 350wtq.


This dyno graph is the 91 map.

 

[802PWR]

How many miles on the car did you have when you converted?

How many miles with E85?

Still using the sidefeed injectors?

What kind of boost control are you using?

Any unscheduled maintenance since E85?

 

[HolyCrapItsFast]

Nice work! The curves look well defined. I would have toned it up though. Your plenty safe at the higher HP range but I really don't know the whole picture. Perhaps your tuner stopped because he was approaching the top of the injectors. You can run out of injector pretty fast on E85 and 850's.

 

[Alin]

Lol.... 3 year old thread! :lol:

 

[HolyCrapItsFast]

Thanks for pointing that out :tup: