Which race gas to use?
Thread Starter
12 Second Club
Joined: Dec 2005
Posts: 7
Likes: 0
From: So Cal
Which race gas to use? Hi guys. This is my first post here on ls1 tech. I'm going to dyno the car within the next week and and I figured I would fill it up with race gas. I live in southern california and have done a little research on what i can get. Right now I am between VP Motorsport 103 & 109 and Sunoco 104. I am also looking at this http://www.racefuel.com/fuel-4.htm but don't know much about it. Any suggestions would be great.Thank you!
I think that VP has the biggest following, as it is the spec fuel for a lot of NHRA classes. On the other hand sunoco is the spec fuel for NASCAR. If you look on VPs website MS103 and MS109 have a motor octane rating that is very close. I think that 103 has a motor octane of 99 and 109 has a motor octane of 101.
TECH Veteran
Joined: Aug 2002
Posts: 4,055
Likes: 1
From: Hartsdale, NY
Race gas will not produce more power in your street car. In addition, some race gas as a lead additive that will kill your cats.
If your car will run on 89 octane without pinging (detonation) it will make more power than on high test - 92 octane or race gas - 102 octane. Besides race gas is expensive!
Don't waste your money - unless your street car has 16 to 1 compresssion!
If your car will run on 89 octane without pinging (detonation) it will make more power than on high test - 92 octane or race gas - 102 octane. Besides race gas is expensive!
Don't waste your money - unless your street car has 16 to 1 compresssion!
