Build Advisor — HP Goal Planner

Set a target HP, pick your engine platform, and dial in heads, cam, intake, and compression with live sliders. Data-backed HP estimates.

Set a horsepower target, pick a platform, and adjust heads, cam, intake, compression and induction with live sliders to see what the combination is estimated to make. The advisor flags combinations that do not hold together — a cam that needs more compression than you have, a head that is the limiting factor, an intake mismatched to the RPM range.

What it estimates

• Peak horsepower and torque for the combination, with the RPM they arrive at
• Whether each component is a limiter or has headroom left
• Static and dynamic compression, and the octane that implies
• Warnings where two choices contradict each other

Related tools

• HP and torque estimator — power from component specs
• Compression ratio calculator — static and dynamic CR
• Camshaft selector — match a grind to the build
• Cylinder head flow calculator — CFM to horsepower
• Engine specs database — bore, stroke and compression for 1,472 engines