??? about race fuel

[meangreen400ex]

Does anyone know anything about VP MR-8 Racing fuel. I found a full can at work the other day and my boss told me I could have it. It is a brand new can. I have a 400ex just wanted to make sure this stuff would be alright to run before I try it. Can't beat free race fuel.

[flyingbyfast400]

Ya Race Fuel is not cheap.. The best stuff is free stuff.. I went with my Buddy to Buy C-12 and C-14 and it was like 8 sumthing a gallon and that was for the c-12... But I dunno what it will do to ur 400 I dont know much about MR-8 sumone eles will have to help you out there... Have fun
Vic

[LTZ400rider]

where do u work?

[Aceman]

Originally posted by meangreen400ex
Does anyone know anything about VP MR-8 Racing fuel.

What does the label say? Octane, Leaded, what??

[mojoe2878]

if its mr-8 then its a leaded fuel and its 107 octane. you can run it . all the c-12 and c-14 and alot of other racing fuels is leaded too. if ya dont want i'll give ya my address and you cand send it to me, i'll use it.:devil:

[ATV Adrenaline]

Yeah that stuff is expensive, but it is the best stuff on the planet (leaded fules for like 2-strokes and it is also good for 4-strokes. Helps lubrocate the top end more!

[meangreen400ex]

I work at a major chain of carwashes in the Indy area. We get people through all the time washing up their quads and bikes after races...I'm sure someone just set it out of the trailer and accidently left it. My gain their loss....

[meangreen400ex]

So the mr 8 will be fine to run in my 400ex right? just wanted to make sure b/c I don't want to f.......any thing up.

[mojoe2878]

it will be fine to run it, but most of the time you will need to go up a main jet size when going from pump gas to race gas or it will run a little lean.

[400ex28]

use it!!!!!:scary:

[jmpulse]

It isn't going to hurt anything, and the gains will be little. I do run a 50% mix with premiun from time to time, and a few times, straight race gas. I did the full race gas, because I was running just a bit on the lean side, and the added octane helped for the weekend. I love the smell of race fuel!

I would recomend that on a stock compression/timing motor, to just use a mix. Running full 110 of 107, which ever it is, could actually loose some power. The possible noticed gains, are either a trich of the mind, because it is 'race gas', or you have Cali pump gas, and we all know water burns as well as it. ;)

[foleyit]

MR8 is a leaded oxygenated 107 octane fuel. If you are running stock compression you may want to mix the fuel with some pump gas. You really aren't going to see any gains differences between mixed or straight race fuel.