I know this is a general question, but what is the best and/or most common recommended race fuel for an s2k on boost?

reson being: I am going to make a new calibration/tune on my flashpro for 5 gallons of race fuel (mixed with the remaining 1 or 2 gallons of 93 octane from daily driving), but I can't decide what kind of fuel to calibrate for...

I have a mase turbo kit at 430whp currently, (1000cc injectors) and
I definitely want the most power I can get without engine problems. so far, I've only talked to VP and they advised me to go with their MS 109 fuel and also to make sure it is unleaded...

Can anyone give me their 411 on what to do, particularily from experience?

Thanks...

 

E85

 

im completely new to the race fuel scene and I am continuing to do research and learn more before I make this calibration so enlighten me about E85...

 

http://lmgtfy.com/?q=e85+race+turbo

 

lol, ok thanks, but how does it compare to sunoco's or vp's brands such as MS 109? i'm looking for comparisons from personal experience especially...

 

Dude. Third link in that search result. The hotrod mag comparison back to back.

And if you haven't done the math, we got <5mpg at Road America. You're really going to do 109 race fuel?

 

And if you're talking about race fuel for the street, then yes... you're in the wrong forum.

 

If you're still having trouble finding that link:
http://www.hotrod.com/techarticles/hrdp_08..._race_fuel.html

 

I've run VP 100, 110, C16, Q16, E85, and E98.

I run a 100% stock engine S2000 with a GT4088R and 600whp in time attack events and E98 has been by far the best fuel choice of the above fuels. I can't say for the Motorsport 109 VP offers (Actually hadn't heard of it until just now) but I doubt it will be any better than Q16 and E98 is a way better fuel than Q16 in my application (not to mention less than 1/4 the price).

 

In my 2005 Mitsu Evo, switching from 100oct to E85 added 45whp. The only other mod was bigger fuel injectors. Basically everything else was stock except for a TBE.