VP C12

[xseal]

Anyone have experience w/ this fuel? I've been running U4, but am putting in high compression pistons into  new engine.
1) is it readily available, like U4?
2) does it need to be drained from the tank/lines like U4?

[badmonkey]

run u2 then

[LMsports]

C12 is popular for two stroke applications but it is not oxygenated like U2 and U4. U2 has more octane than U4 so that is why the suggestion was made to substitute with that fuel. Basically U2 is just higher octane U4 is all. We usually stock a large supply of U4, some C12, and only a couple cans of U2. Be sure to pre-order your fuel from your trackside distributor to make sure that they will have what you need when you get to the track. Fuel is such a tough item to carry around due to laws and cost etc that we try to not have much left over after any given weekend.

[Super Dave]

Anyone have experience w/ this fuel? I've been running U4, but am putting in high compression pistons into  new engine.
1) is it readily available, like U4?
2) does it need to be drained from the tank/lines like U4?

I believe that it's the octane lowering chemical that requires some VP, R-Tech, and Nutec fuels to be drained.  C12 should not be in that category.

You might be able to mix U4 and C12 to get the extra octane and then get a little oxygenate in it. 

You're probably going to need to remap it or change the jetting because the C12 has no oxygenate.  U4, what you ran, has 4% oxygen content.  By volume, that probably means that the chemicals that make up the oxygen make up 14 to 20% of liquid volume.  If you tossed in the fuel (C12) with no changes, you'd be rich.

[fourandsix]

Max go to this website and buy this brand.
http://www.r-techracingfuel.com/

[BlueRidgePerformance]

Max go to this website and buy this brand.
http://www.r-techracingfuel.com/

Only problem with "that brand" is it's avaliability.
I've heard good things about it, but I'm still selling VP to teams and riders that have switched to R-Tech, because they could not get their supply for a race.
C12 is a good blending fuel, but it is not going to make anywhere near the power as the oxygenated fuels

[xseal]

Max go to this website and buy this brand.
http://www.r-techracingfuel.com/

Thanks Jim.  Which one do you recommend, ProV1, outaw or 110? I'm running a built air cooled 2-valve Ducati in LW SB/TB now, has some high compression pistons. I want to get out of the game of draining fuel, if possible, and have this thing run as cool as possible (already put in second oil cooler).

[xseal]

Max go to this website and buy this brand.
http://www.r-techracingfuel.com/

Jim -- I looked at the dealer list .... you're shop in Chicago is the closest ... and I'm in DC now. 

[BlueRidgePerformance]

So with R-Tech, there is not need to drain your system after the bike sits for a couple of weeks?
I doubt it.

[fourandsix]

Thanks Jim.  Which one do you recommend, ProV1, outaw or 110? I'm running a built air cooled 2-valve Ducati in LW SB/TB now, has some high compression pistons. I want to get out of the game of draining fuel, if possible, and have this thing run as cool as possible (already put in second oil cooler).

Max just use the 110 , they can ship to you direct.

[fourandsix]

So with R-Tech, there is not need to drain your system after the bike sits for a couple of weeks?
I doubt it.

Gary you should always drain Race Fuel no matter what the brand after you are done for the day.

[gpstar1]

When I had used U4 in my SV it made awesome power, but I also had major problems every time I used the stuff. I switched to the C12 and everything is fine, I had it on the dyno and put out some good numbers.  I have been using C12 for the last 2 years.