If a Top Fuel car’s engine is not running properly and unburned fuel builds up in the engine, it can explode with a force strong enough to crack the engine’s head or block. … The engines and components are under so much pressure that all of the connections need to be inspected and repaired on a regular basis.

How much does it cost to rebuild a Top Fuel engine?

The cost of a complete top fuel dragster engine is in the $58,000 range depending on options. The engine will be stripped down to the bare block after every run and be rebuilt in a span of 40 minutes. The engine will be torn down and rebuilt 184 times in a year if the car makes it to the finals at every race.

Why are Top Fuel engines rebuilt?

As soon as a clutch of a Top Fuel dragster is released, its engine already starts to tear apart, thereby compromising the integrity of its parts. To ensure that the dragster’s engine can still go at full throttle for a subsequent pass, it is completely disassembled and re-assembled.

Running at about 40 percent higher rpm than the engine crankshaft, the supercharger develops about 55 psi of boost pressure. At full power, the supercharger requires the better part of 1000 horsepower to do its work.