how much HP should I expect?

[Apriliapilot]

Question how much HP should one expect to get from a stock 01 gsxr 750 , with a yosh can, nikko g pack, MR1 race fuel? not trying to set any track records using it for seatime in solo classes I was just curious?

[Spooner]

Why MR1?  I would use U4.  I would think mid 120s to low 130's depending on how tired it is with U4 and a bolt on.  Also I would use a teka box to tune the bike.

[Super Dave]

I'm with Spooner on that.

Even then, how that will translate to lap times will be contingent upon your ability, your chassis set up, tires, etc. 

[BlueRidgePerformance]

I have run MR1 in my endurance bikes for 2 years. Map is almost the same as pump.
You don't have to worry about draining the tank. Problem is, VP has been talking about dropping it from their product line for 3 years now. Soon or later, it will be gone.
U4 is going to make more power.

[DanO966]

On that bike U4 makes the best power.
For some reason U4 works better then MR9 in that bike.   Never tested MR1 in that bike or the new MR10??

[spyderchick]

You know what I find funny? That fact that race fuel is like crack to racers. You start out with the high octane AV gas at $3-5 per gallon, then it gets progressively more expensive, until you are into the really exotic, high dollar stuff.

C'mon man, whatdaya mean yer outta U4? Dude, I need my fix or I'm gonna DIE out there! You know how fast them other guys are runnin'! How can I compete!

So next time your local fuel vendor offers you a free tank of something more exotic and expensive...BEWARE!

[Apriliapilot]

Thanks for the feedback guys, I will try U4  see how that works.

[cardzilla]

On that bike U4 makes the best power.
For some reason U4 works better then MR9 in that bike.   Never tested MR1 in that bike or the new MR10??

U4 works better in most bikes.  MR9 is better if you spend a lot of time tuning spark timing, fuel delivery and cam timing... but only marginally so why bother?  Just dump in U4 and you'll get half the gains... change the map and probably about 90% as good as MR9.  I'm curious to see what MR10 will be like.

[Spooner]

Yeah I have always heard MR9 was 1 more hp than U4..hard to justify the huge extra cost for that!!

[Z-man]

Yeah I have always heard MR9 was 1 more hp than U4..hard to justify the huge extra cost for that!!

RRW ran a test two years ago and I think it was like .25hp difference from using U4 to MR9, I think they ran the test on a 600 if memory serves me correctly.