Free car build planner

BuildLab Pro

Your car. Your goal.
A clearer build plan.

Work out which upgrades your build may need, why they matter and what to check before spending on parts.

No account needed to test. Create a free account to save.

Vehicle
Your exact car
Engine
Factory or swapped
Target
Your power goal
BuildLab Pro logo with a silver Nissan Cefiro

Beyond the first idea

Where do you want to take your build?

What a build report looks like

An illustrative layout, not a real result. Your report is based on the car, engine, fuel and goal you enter.

Build report · ExampleIllustrative
Vehicle
Nissan Cefiro (A31)
Engine
RB20DET · factory turbo
Fuel / use
98 RON · street
Power target
Set by you

Engine management / tune

Required

Fuel and timing must be calibrated for the new target, with boost limits enforced.

Risk considered: Lean running, detonation

Fuel pump

Required

More power needs more fuel flow; a tired factory pump is a common limit.

Risk considered: Fuel starvation at high load

Front-mount intercooler

Recommended

Keeps intake temperatures down so power stays consistent.

Risk considered: Heat soak, timing pulled

Uprated clutch

Recommended

Factory clutches often slip once torque rises.

Risk considered: Clutch slip, glazing

Verified vs estimated

Factory specs are labelled separately from estimated gains and costs.

Missing information

Unknown specifications and fitment still need specialist verification.

Get your own report

Power figures and costs are estimates, never guaranteed results.

Before you buy parts

Understand the supporting systems

All build guides

Free account

Save your cars, track modifications and keep your build plans in one place.

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BuildLab Premium

Extra tools for bigger projects, including the AI vehicle visualiser — describe the look you want and get a concept image based on your saved car — plus higher-horsepower planning and the price tracker.

See what's included