Endicott Speed Shop

Weight Distribution Calculator

See how moving or reducing weight changes your car’s front/rear balance.

Example: What Happens When You Move Weight

Moving a 40lb battery from ahead of the front axle (140") to behind the rear (-25") can shift weight distribution by ~1-2%. That may sound small, but it can noticeably improve balance and reduce understeer.

Try it yourself below - then compare it to moving the engine back or reducing front weight.

Baseline Vehicle

Modifications

Use negative values for locations behind the rear axle. Values above wheelbase may still be valid for components ahead of the front axle.

Results

New Front Weight
55.0%
Front Weight Change
-2.0%
New Total Weight
3565 lb
Meaningful shift toward rear balance.
Why moving weight matters Battery relocation explained Engine setback vs weight reduction

Weight Distribution Explained

Weight distribution affects how a car accelerates, brakes and turns. Front-heavy cars tend to understeer, while more balanced setups improve handling and responsiveness.

This calculator helps estimate how modifications like battery relocation, lightweight panels or engine swaps affect front-to-rear balance.

Even small changes (1-3%) can make a noticeable difference in how a car feels on the road or track.