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4126 Views 63 Replies 14 Participants Last post by  jbranson
I used some MR8 at the last race. Frontierdon. Awesome. F'in unbelievable. I am now a believer. But I found out on the VP page that MR8 is for 125 and 250 2 smokes. Octane 107, leaded, oxygenated, yellow in color. I was running a 4 stroke 500 single.

The VP web page says this shit can be shipped UPS!!

I guess if it works it works. What isn't on their web page is

1. how long it lasts and
2. it says on the can not to leave in the carb/tank. But for how long?
3. I am going for a dyno test on Friday at MM. We'll see. All I know is I kept up with TK's 650 duc. (but he did say there was a "shimmy" in the steering)

I just need to get my post count up.
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i was running pump gas before. the VP filled in a flat spot that I had all summer at about 6,250 rpm. Engine ran about 1000 rpm higher . . . and everytime I went past 6250, it was like a little turbo kicked in. I shit you not. It really felt like there was a little second piston that started pumping. I have some left for the dyno run, but it may be bad by now. i am not sure how long a can of opened oxygenated gas stays oxygenated. Looking into it. (Anyone know?)
yeah . . . what gto said. i am over 10:1 and running a big lumpy mega cycle cam.
Don't listen to Frank. He doesn't even put air in his (Chen Shing) tires ! !
Don't listen to Frank. He doesn't even put air in his (Chen Shing) tires ! !
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