The big cubic inch high compression ratio small blocks in today’s dirt late models are built to perform at high RPMs for many laps of grueling abuse. VP Racing Fuels has recognized the specific demands of dirt late model racers and developed several great leaded fuel options for these race engines. The first fuel VP offers is their Late Model fuel which is recommended for use on dirt and asphalt circle tracks in engines smaller than 400 ci with CRs up to 14:1 and lower. They also offer a Late Model Plus that is recommended for use on 3/8 mile or greater dirt and asphalt circle tracks in engines bigger than 400 CI with CRs up to 15:1. It burns cooler, making as much power on the 100th lap as on the first. Late Model Plus has fueled the World of Outlaws Late Model Series champion for three consecutive years through 2008, numerous winners of the World 100, Eldora Dream, Dirt Track World Championship, Show Me 100 and Colossal 100, as well as many other crown jewel events and series championships.
The next great fuel VP offers for dirt late model racers is their DRT fuel that they have developed to satisfy the demands of racers and engine builders who want more performance for their dollar, this new DRT blend provides 8-10 hp more than other Late Model fuels on the market while maintaining the cool temps that are critical to engine longevity. Their Q16 blend is highly oxygenated, requiring a 4-6% increase in fuel flow, which will make 3-5% more power than competitive 116 octane fuels. It is excellent in higher compression Super Late Model or other applications up to 17:1. Q16’s superior vaporization characteristics yield more efficient combustion and lower engine operating temperatures. The added fuel flow also effectively increases the octane of Q16 by 6-8 numbers above its standard ASTM octane rating, yielding greater detonation protection.

The last great fuel option VP offers for dirt late models is their VP113 blend that offers substantial power gains at a competitive price, VP113 is oxygenated to street gas levels. Formulated for naturally aspirated engines with CRs up to approximately 14:1. VP113 makes up to 2% more power than competitive 110 octane fuels, with gains of 3-4% in engine applications with poor or marginal fuel vaporization qualities. Like Late Model Plus, VP113 burns cooler, ensuring power is maintained throughout the longest races and harshest conditions. It may require a tuning change, including increase in jet size, for optimum performance. VP Racing Fuels are made in the USA by one of the leaders in race fuel technology. Make VP Racing Fuels your choice for the world’s best performing race fuel blends that are customized for your specific motorsports application.
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We look at a mildly tuned LT4 on the dyno, first with E85 and then VP's C85 fuel in the tank. The results are more impressive than expected, even without any additional tuning.