E85 eaton numbers....

[ZOSO]

After being on E85 for 2.5 years I finally got some numbers on my lil eaton.

Stage2 steig ported eaton july 2004 port.
2.8/4lb combo.
full exhaust.
Seeing 14psi boost.
untouched motor
made 530rwhp 550rwtq. On a loaded dynojet.
Having belt slip or something cause power falls off and goes flat at 5200 rpm. This was at 26* timing and found in a data log it's too much. backed it down to 23* and will try again when I fix the power drop off problem. Gonna do plugs and a new belt as these are a few years old. I'll probably get a posi port in the next few months and go for 550+rwhp(sae)
This was tuned on the street by me.
SAE

Uncorrected 436rwhp 453rwtq got to love bein 5280' up here.

 

[90goldtsiawd]

Great numbers!

 

[Teej281]

does correction factor in that you'd be seeing more boost at sea level than you were?

 

[ZOSO]

Im not totally sure it does factor in for boost. If we unloaded the dyno for "regular" dynojet numbers it would have been about 20-30hp more.

 

[04gtstang]

Sweet numbers!
As for timing, could you explain what you meant by seeing in a datalog that 26 was too high? I know of guys running 27* in cobras on E85...plus 23* is usually peak on pump 93, so I would think the slower burning E85 would need the general rule of adding around 4*s?
I would love to see a dyno with different amounts of timing on E85.