JeremyKweens

Im looking for a race gas for my Z to use on the juice. I should probably use an unleaded fuel............would VP's motorsports 103 be a good choice??

any other suggestions?

12SCNDZ

Motorsport 109 is the highest octane VP sells. It has a 101 "motor octane"
Motorsport 103 has a 99 "motor octane".

BTW, your oxygen sensors won't like you anymore if you try to use leaded fuel.

Frank

944v8inDFW

I personally use the VP 103 with N20 and no problems on or off the bottle. Otherwise i use 91 pump gas for day to day driving

rpm4lalo

Do you have something to monitor knock???, even with a 113 trap speed you still might not need race gas.

JeremyKweens

I will be running a 150 shot tho.......so race gas is a must.

for just the 100 shot I run 92 octane and thats it

rpm4lalo

Not a must, but defintelty safer if you don't have something to monitor knock retard and don't have a way to reatrd the timing. I am running a 140 shot on top of a heads and cam combo that makes 397rwhp NA it's tuned to run on 93 octane on the bottle. Do you have a scanmaster? Or perhaps something like PCM Comm to monitor knock retard?

LameRandomName

You know; 2 gallons of Toluene and 4 gallons of 93 Octane gives you 100 octane at about $3.00 - 3.50 per gallon, depending on your local prices for the two ingredients.

Theoretically, you could run straight Toluene, which is a pure hydrocarbon (Or so say the chemists... how the hell should I know?), but at 114 Octane, unless you had a very high compression and a strong ignition system, you might have trouble lighting it.


There was some kind of race car.... I think F1, but I don't really remember. They used straight Toluene, and added back in some other chemical that had a zero ocatane, just to bring it down to rules specs.

JeremyKweens

where can I get Toluene from??

zx1216

you can get it from most bigger paint shops, i think the home depot had it but i mey be wrong.

LameRandomName

I just picked up 6 gallons at Sherwin-Williams. They actually do quite a business in it, at least this store does. They can for damn sure get it.

The product numbers are:

1 gallon = 154-8668
5 gallon = 154-2372