Clearancing

There are three types of clearancing which REC offers

Face Clearacing

This type of clearancing is typically for aggressive street use or road racing. This method entails removing a determined amount of material from the gear side and the non-gear side of the rotor along with an equal amount of material from the gear itself and the hardened center surface on the opposite side. Recommended for sustained high temperatures and higher rpm applications.
Cost: $80 per rotor

Tip Clearancing

This type of clearancing is more commonly used in engines which undergo greater loads and create more horsepower and torque. High boost applications and drag racing engines will benefit from this method as the circumstances yield higher chances of crank shaft deflection. Because the tip of the rotor is the furthest away from the centerline of the crankshaft it becomes the most likely spot to contact the side housings.
Cost: $60 per rotor

Race Clearancing

This type of clearancing is a combination of the two above procedures. Because it is common in engines making continuous power and rpm for the rotor gear or tips to contact the side housings, the best overall protection is noticed by performing this modification. Because the rotor itself only has to be set up and installed on the machine ones to perform both procedures we package the total cost to benefit the customer.
Cost: $125 per rotor
Saves 11%