My E85 Dyno Graph - 521 HP

[Donkey]

I have flex fuel as well and am a lot less than that difference. Only a ~14hp difference from 91 to e85.

I'd say I'd your dyno atmospheric conditions were the same as the op in this thread that gap would increase. The iat for these was 110°.

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[swedensky]

I'd say I'd your dyno atmospheric conditions were the same as the op in this thread that gap would increase. The iat for these was 110°.

Yeah I don't remember but i know it wasn't that hot that day

 

[VUDUGT350]

So if I put headers I should only expect 10-15rwhp? I dyno'd 510rwhp with JLT CAI, e85 and Lund flex fuel tune. Was hoping headers would provide more on top of that but maybe the factory headers aren't that restrictive?:shrug:

Count me as one of the many waiting for the FP throttle body to be released if it truly is that restrictive.

 

[Donkey]

My concern with a larger throttle body is sacrifices elsewhere. I'm sure there is peak power to be gained but not sure I'd want to risk sacrificing power down low for a few more peak hp up top.

 

[Voodooo]

So if I put headers I should only expect 10-15rwhp? I dyno'd 510rwhp with JLT CAI, e85 and Lund flex fuel tune. Was hoping headers would provide more on top of that but maybe the factory headers aren't that restrictive?:shrug:

Count me as one of the many waiting for the FP throttle body to be released if it truly is that restrictive.

No. You will gain 20-30rwhp with long tubes. When I prototyped the headers for ARH With stock mufflers on stock tune with 93 I gained 30.4 Rwhp. With tune, 93, ARH, stock mufflers and stock CAI I pulled 529 rwhp. I now run Sunoco 260 GT 100 octane race fuel only and have a revised tune but have not dynoed it yet. But it is noticeably stronger.

 

[superman07]

Pretty similar, however I have the factory air intake, as far as I know that is the only difference.

Here is my Dyno sheet for reference:


I am hoping to see some more performance parts out soon, I want to achieve 550whp next.

Also I was 466 baseline on 91 and 511.8 tuned on 91.

I think the reason you gained less with e85 is that you looked to have a monster tune with 91. I am pretty shocked e85 didn't get you a bit more, did you happen to drive the car with each? do you have the dyno comparison?

 

[superman07]

Yeah I don't remember but i know it wasn't that hot that day

Have you considered a CAI yet? I think stock they are useless but they might provide some benefit once the exhaust side of the equation is opened up.

which muffler / x-pipe system did you go with, I forget.

 

[Voodooo]

I guess I'm missing something here. How did you get 407rwtq on a bone stock car? Every gt350 I seen stock Dynos in the 370 rwtq range.
You are basically at a 11.5% drivetrain loss on hp 526-11.5% = 466
429 tq - 5% = 407 rwtq.

Something isn't adding up

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