Dyno results of the engine after it was first built in 2000/1, basically a standard Rover 4,6L with a high torque 4x4 camshaft, Weber 500 carb and standard Mantula exhaust manifolds.
Before and after replacing the original Mantula manifolds and exhaust system with new manifolds and exhaust system from JP Exhausts of Macclesfield. A massive improvement in the mid range and now with 303lbft of torque at peak
