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RC Glossary


New to the RC Hobbies? What does buggy, bulkhead, nitro mean in radio control car hobbies? Check out the glossary for remote control cars below.

Head Clearance --

Refers to the distance between the bottom of the head and the sleeve on a nitro engine. Head clearance affects the compression of the engine, and is adjusted using head shims. If the clearance is too low (small), it may lead to detonation, or the top of the piston may actually strike the glow plug. Adjusting clearance is usually only reserved for the 'pros' looking for that millisecond on a lap times - so, unless you're racing the Nats next week, your engine is just fine.
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