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Gear Ratio Calculator
Dial in your pinion and spur in seconds — free, with rollout and FDR.
What is the "header" on an RC car engine?
See our article on manifold.
AI Feedback on Your Setup
Talk with an AI Mechanic that actually knows your car's exact setup, anytime, anywhere.
Tuning an RC Nitro Engine with the Exhaust Pipe and Manifold
Adam Drake, master of dirt nitro, explains how to use your pipe and manifold to get the most out of your nitro engine.
