CLASS RACER FORUM - View Single Post - V.P. C-11 vs. C-12

Mike Croley · 09-11-2015, 04:00 PM

There are other important aspects of racing fuel of course. Specific Gravity, and RVP ( Reid Vapor Pressure ) are two that matter.
All brands and all blends of racing fuel have different specs. 4 different brands of 116 will all have different Specific Gravity and RVP numbers. If there was only one RVP, or one Specific Gravity that was the best, all manufacturers would just plug those numbers into every blend and be done with it. Each manufacturer works very closely with racers and engine builders to come up with blends that make power, make torque, and most important, control detonation and pre-ignition.

09-11-2015, 04:00 PM	#13
Mike Croley Member Join Date: Apr 2010 Posts: 182 Likes: 0 Liked 0 Times in 0 Posts	Re: V.P. C-11 vs. C-12 There are other important aspects of racing fuel of course. Specific Gravity, and RVP ( Reid Vapor Pressure ) are two that matter. All brands and all blends of racing fuel have different specs. 4 different brands of 116 will all have different Specific Gravity and RVP numbers. If there was only one RVP, or one Specific Gravity that was the best, all manufacturers would just plug those numbers into every blend and be done with it. Each manufacturer works very closely with racers and engine builders to come up with blends that make power, make torque, and most important, control detonation and pre-ignition.