Few would deny that the Dodge Viper caught the world’s attention when it was launched. Even though it had its origins in a truck motor, the Viper’s 8-liter V10 engine provided enough power and torque to scare even the most jaded drivers.
But the owner of this Viper wanted to scare not his passengers but big bikes, which is a territory where even very fast cars are humbled. If you calculate the power to weight ratios of modern sport bikes, which come in at less than 5 pounds per horsepower, that challenge can only be met by a car with a massive power output.
Entrusting the Viper to Underground Racing, the owner allowed the shop to rise to the challenge by having it reassemble the engine with CP Pistons, billet main caps, Oliver connecting rods and Hellfire piston rings, in the process also increasing displacement to 8.4 liters. A turbo compatible camshaft was used and the heads were ported and polished. Twin Precision TE PT76 turbochargers are fed by the opposing five-cylinder engine banks. 96 lb/hr injectors are used, which are controlled by a standalone AEM ECU. Depending on the car’s speed, the engine management system allows up to 29 psi of boost for the turbo system. On the dyno, the tuners saw almost 1550 horsepower, using race gas. Interestingly, the Viper’s stock transmission only needed a twin-disc setup to handle all that power.
Some would say that having a car this fast is too much. The owner of this insane Viper would retort that it is just right. It would be very interesting to have a performance calculator on hand to see the figures this kind of car would generate.
Underground Racing Viper at the drag strip.
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