i have a 86mm bore 13.5 comp ratio(serie B). What is the better for my specs. For personal experience,thanks.

 

c12 or c16

 

C12 is an ok choice.

C16 is a TERRIBLE fuel for an all motor application.
Its per molecule weight is heavy and is meant for a forced induction build.

C14+, Q16 ( an oxygenated fuel), ms109 or E85 would be good choices.

Don't be scared to talk to the local VP rep, they are very helpful

 

^ good advice.

 

what he said^

 

But don't be surprised if what you pay for and what you get is not the same.

 

WHAT ?!?

 

VP has been caught, more than once, labeling a barrel of fuel with an octane but the contents is a lower grade octane. I've seen photos of some of the miss labeled barrels.

 

If you have E85 available, use that over all the others. If you’re track only, go for M1 or M5. All the others are a waste of time.

 

Interesting. I can't wait to hear the theory around this one.

 

Im my small experience that I have, I would go with the fuel that would allow the most spark timing without signs of detonation as this is where you will make power. This is ONLY if you dont care about MPG. You can run Nitro up to 60 degrees of timing in WOT, where as with gas you'll be around 28-32 degrees, but you only get like 8 miles per gallon. Haha. Depends on the application but I would go with what fuel allows the most spark timing.

 

E85 is cheap and will make as much power as any fuel he mentioned.
M1 or M5 will make more power than all. Not sure was confuses you.