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kbstang
09-18-09, 07:44 PM
if im already running a little rich will 109 octane race gas hurt my performance

WildBill
09-18-09, 08:22 PM
if im already running a little rich will 109 octane race gas hurt my performance

Ummmmm..........is your car tuned for race gas?

I ASSUME that you have a KB on your car. Why don't you give us some info on your car so we may give you an intelligent answer.

Unless ya want someone to pull out an answer that smells because of where it came from.

BurnTire
09-18-09, 08:43 PM
If you are safely tuned for street gas adding race gas will do nothing substantial other than lighten your wallet.

The stoich ratings of high octane unleaded differs from pump gas. If you are running 100% VP109 for example you will require a tune adjustment as that fuel is running leaner with a 13.41 stoich rating.

The best bet is to tune for the race gas which will allow you to take advantage of the benefits of such fuel (Increased timing, RWHP etc).

kbstang
09-22-09, 07:37 PM
thanks!!!!

az2k1
09-27-09, 01:59 PM
i run vp113 but i got 3 tunes ....but when i got it on my 91 tune w/vp it's faster ....but that's my car....