Engine Swap VPI Calculator

Estimate your swap points.

Use this tool for cars with an engine swap. Select the chassis from the swap VPI list, enter the original horsepower and the new engine horsepower, then calculate the points added to the base VPI.

Start Calculator Base VPI Lookup Review BCCR

Important: The starting VPI of your swapped vehicle may differ from the VPI of your unswapped vehicle. ChampCar may group substantially similar chassis together once the stock engine has been removed.

Calculate swap points

Select the vehicle, then enter the original horsepower and the horsepower of the new engine.

Step 1: Make

Start with the chassis make from the swap list.

Step 2: Model

Pick the exact model line.

Step 3: Year

Choose the matching production year.

Original HP

Use the original factory horsepower for the selected chassis.

New Engine HP

Use the factory horsepower for the incoming engine.

How swap VPI works

The swap calculator is not the same as the base VPI lookup. A chassis may receive a different swap value when a powertrain change increases its performance potential.

Swap VPI may differ

The starting VPI of a swapped vehicle may be different from the unswapped VPI. Similar chassis may be grouped together once the stock engine has been removed.

Database values control

SPV, original horsepower, and added horsepower values must come from ChampCar’s database.

Minimum swap fee

Swaps that result in the same horsepower or a reduction in horsepower are charged a flat 50-point fee.

Included swap parts

Engine swaps include the stock long block, OE stock exhaust manifolds, stock induction system, motor mounts, wiring, and transmission adapters.

Headers and intake manifolds

Aftermarket headers are 25 points. If the intake manifold is not the OE or stock intake manifold from the incoming engine, it is 25 points.

Cost and documentation

Maximum swap cost is $2,500 for engine and adapters. Foreign market engine exceptions require horsepower documentation.

Good rule of thumb: Do the math before you build. A few extra horsepower can cost more points than the performance gain is worth.