Front Splitter Sizing Calculator

Size a front splitter for maximum downforce based on vehicle dimensions, speed, and ground clearance.

Input Parameters

Results

--
Splitter Area
ft²
--
Est. Front Downforce
lbs
--
Pressure Coefficient
--
Est. Drag Penalty
lbs
Note: Front splitters work by creating a high-pressure zone above and low-pressure below. Effectiveness increases dramatically at lower ride heights. Endplates and vertical fences improve performance 10-20%.

Reference

Splitter Area = Width × Depth / 144 (ft²) Cp = 0.8 − 0.15 × (Ground Clearance / Depth) Downforce = ½ × ρ × V² × Cp × Area Drag Penalty ≈ 20% of Downforce Lower ground clearance = higher pressure coefficient