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High compression and octane question...
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Posted by: 450 Racer R

If I run the 13:1 comp piston would I be alright with 93 octane and octane booster? Does octane booster actually work? I've never tried it

Posted by: 440ex kid

Your gunna have to run race gas. Octane booster doesnt do anything.

Posted by: jokerman_28

dont run octane booster. its no good. creates pockets in your gas. just by race gas, its worth it.

Posted by: 450 Racer R

I seen on trx450r.org that some people were running the 12:1 comp piston. Where can I find that at? or 12.5:1. I'd like to stay on pump gas but want the most out of my bike. The 11.5:1 piston is a waste from what I understand?

Posted by: oldsandman

You will not be able to run pump gas (92-93 octane) with a 12:1 or 12 1/2:1 piston.

Posted by: Sandgod4

You can run pump gas on 12.5-1 piston. You just need to be 3500ft or higher..

Posted by: oldsandman

quote:
Originally posted by Sandgod4
You can run pump gas on 12.5-1 piston. You just need to be 3500ft or higher..

Leave it to you strange utah guys to figure that out!

Posted by: Thump_It

Sparks is working on a 12:1 piston that can run on pump gas.

Posted by: sharkinthepool

I never knew that! I had a 12.5:1 in my old 440 motor and was told I had to run 110! I have a 13.25:1 now that runs the same. We tried Ox4 but it would not ignite correctly? We still have not figured that one out. Ran like it had a hole in the gas line, and yes the tank was sealed.

Posted by: CdaleXtreme

What is Ox4????

Posted by: sharkinthepool

oxygenated crap that cost an arm and a leg. You have to run a sealed gas tank with it or it will evaporate!

Posted by: 450 Racer R

How much does a barrel of VP Race gas go for and how long does it usually last?