/// What it checks
Engine internals
Estimated power vs the enthusiast-estimated ceiling of stock rods, pistons and gaskets.
Fuel system
Injector and pump headroom, because lean is how tuned engines die.
Drivetrain
Clutch, transmission and axle limits against your power and launch style.
Cooling
Sustained-power capacity for how you actually use the car, street to track.
Brakes & traction
Whether the chassis can deploy, and stop, the power you're adding.
Platform intel
Known failure patterns per engine: ringlands, rod bearings, HPFP walls, ceramic turbos.
/// How it works
Pick one of 65 real platforms (or enter custom figures), tap the mods already on the car, set your usage and power goal. carbuildcheck estimates output, checks every subsystem against it, and returns a 0–100 build score, the weak link, severity-ranked risks and a prioritized roadmap to your goal, including power-to-weight and a physics-based ¼-mile estimate. Read the full methodology in how the score works.
/// Common questions
Is carbuildcheck free?
Completely. No login, no signup, no tracking. Your build lives in your browser and in the share link, nowhere else.
How accurate are the numbers?
The stock figures on every platform page are sourced and the source is named. The part limits are labelled enthusiast estimates from tuner and community sources, with site planning figures where no named source exists. Good enough to find the weak link and order your upgrades; not a substitute for a dyno and a professional tuner.
Can I share my build?
Yes. The report link encodes your entire build in the URL. Anyone who opens it sees the exact same report and can remix it.
My car isn't listed.
Use the custom platform card: enter stock horsepower, weight, aspiration and drivetrain, and the analyzer derives sensible limits. Want your platform added properly? Tell us: hello@drivenerve.com.