Calculate surface temperature reduction from exhaust wrap and the resulting effect on underhood temperatures and exhaust gas velocity.
Input Parameters
Results
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Unwrapped Surface Temp
°F
--
Wrapped Surface Temp
°F
--
Surface Temp Reduction
°F
--
Exhaust Velocity Gain
%
Note: Exhaust wrap reduces underhood temps by 200-400°F and keeps exhaust gas velocity high. Use only on headers/downpipes; can accelerate pipe corrosion.
Reference
Unwrapped Surface = Ambient + (EGT - Ambient) x 0.65
Insulation R = Thickness(mm) x 0.04
Wrap Factor = 1 / (1 + R x 10)
Wrapped Surface = Ambient + (EGT - Ambient) x 0.65 x Wrap Factor
Velocity Gain from retained exhaust heat energy