Roush 427r only made 400whp :(

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05-06-2015, 03:48 AM

NZCOBRA

CC Member

Join Date: Jun 2003

Location: NZ ., nz

Cobra Make, Engine: Berry Cobra ,Tremec 5 spd . 408 windsor , double A arm 9"rear

Posts: 46

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Exhaust

I had my car on the dyno the other day , Hub dyno 408w and only got 420 at the wheels , with a dip in the torque curve , I thought it might be the mufflers , so we removed the center core (spirals) and picked up 62hp !. Cheers .

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