H22, Arias 10:1, sleeved, Crower rods, S300, MSD 6AL, HVC Blaster, GT30 w .82a/r, GE intake, 950cc Precision inj., JG head, 3" ex from turbo back etc.

I'm running 16psi and 11 psi off a Blitz ebc. On a Mustang dyno it's producing 465 whp and 344 wtq. at the 16 psi setting. Because of the higher compression I have been using 120 race gas (113) octane, all the time. The 92 hatch is street driven only.

How much boost is reasonable for a setup like this on pump gas? E85?
I know it varies from engine to engine and from one setup to another but would it be ridiculous to try to run it on the street @ 16 psi with pump/E85?

I'd like to know - before I go in for another dyno tune.

Currently staying under 18 for timing and below afr under 11.8, when in boost.



Modified by purpleh22 at 1:05 PM 12/16/2006

 

Any opinions/guesses?

 

16 psi on E85 with your compression will be a walk in the park. A good tuner could probably tune your 10:1 motor at 16 psi on regular 93/94 octane without knock.

Servion just tuned a TT Mustang that made 1100 RWHP with 85 on a Dynapack through a powerglide (sucks a lot more power than a standard) and I've seen another mustang dyno at over 1000 RWHP and 30 pounds of boost on E85. It's very potent stuff.

 

Thanks, sounds like it will be worthwhile for me to go with E/85. Even with the 1/3 increase in fuel use I'd save around $2 for every 25 mi. of driving.