Making incredible horsepower is a nice achievement, and making it on a pump gas pre-owned Dodge Viper is simply shocking. Many people view race fuel as the dividing line between street and track, and there is a good reason why. In the days before wideband oxygen sensors and computer controlled ignition, it took high octane fuels to prevent engine damage when making big power. But innovation never sleeps, so the big manufacturers have learned how to make big power on pump gas. Here in Florida, 93 octane has 10% ethanol mixed in. This allows turbo and supercharged owners make more than factory power with just a little work. But in other states, 93 is harder to come by, which has made racers to adopt new ways of making power from pump gas.

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The main problem is how to overcome detonation, or "pinging". This problem results from gas being burned before the spark plug fires. In 1921, GM's research division solved the problem by adding lead to regular gas to create "Ethyl", but that's a story for another day. The best way to prevent spark knock is to cool the intake air before it reaches the fuel injectors. Normally this is done thru intercoolers, but recent production cars have been using closed-loop heat exchangers inside the supercharger. To see this concept to its fruition, racers are building their own exchanger tanks which are filled with ice before the race. It is impractical for a daily driver, but for those who don't want to spend big money on race fuel, ice is an affordable way to go. That is what 1320video filmed over the weekend with a wild Viper built by Nth Moto. Tell us what fuel you prefer, and stay with us for more wild footage from 1320video.