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No, this isn’t the ordinary “should I run race fuel” thread, lol...
I am sending my 02 CR250R cylinder and head to PC for porting and head mods. In speaking with them, they recommend VP C12 for fuel, but said that they can tailor it (porting/head) to VP110 instead of I’d like, but that I would notice a difference in power (lower with the 110 I presume). The rub is that the 110 is about 10.00/gal vs 20.00/gal for C12.
I am an over 40 intermediate at best. Mainly I want improved spread in the power vs stock. On one hand I don’t want to spend an extra 10.00/gal, but the flip side is I’m willing to do so if the difference is noticeable, particularly in breadth of power and/or usability.
Anyone have experience with either or both?
FWIW, bike has a Vforce, PC works pipe/factory 304 (full length) and I have both the stock TMX and a JD Keihin airstriker to play with.
I am sending my 02 CR250R cylinder and head to PC for porting and head mods. In speaking with them, they recommend VP C12 for fuel, but said that they can tailor it (porting/head) to VP110 instead of I’d like, but that I would notice a difference in power (lower with the 110 I presume). The rub is that the 110 is about 10.00/gal vs 20.00/gal for C12.
I am an over 40 intermediate at best. Mainly I want improved spread in the power vs stock. On one hand I don’t want to spend an extra 10.00/gal, but the flip side is I’m willing to do so if the difference is noticeable, particularly in breadth of power and/or usability.
Anyone have experience with either or both?
FWIW, bike has a Vforce, PC works pipe/factory 304 (full length) and I have both the stock TMX and a JD Keihin airstriker to play with.
Have you tried a flywheel weight? That smooths out the power
Once you get to 110 octane leaded, you are building in major compression to get the most from it
The Shop
Unfortunately in the time I’ve stepped away from riding it seems that race fuel has gotten harder to come by in my area.
Another source,,
small and sons in auburn has 3 flavors at the pump. 106 114 and 119 octane. 1725 Auburn Way N. Auburn, WA 98071 http://smallandsonsoil.com/racefuels/trick_race_fuels.php
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