after running a standard engine in our 172 for 3 seasons of tarmack rallying thought it was time for more power so we built up an engine using 287 cams high comp pistons ,steel rods and jenvey throttle bodies after a remap it was showing 235bhp at 7000 approx 30 miles into its first event it dropped onto 3 cylinders and was knocking from the top end after stripping it down we found the inlet valve on no1 cylinder had snapped and wrecked the head and piston
what i would like to know is are valves a prob with the f4r engine and also what should i set the limiter at [it was set at 7800] also will a head from a 197 fit my block
thanks for any help
will philip
what i would like to know is are valves a prob with the f4r engine and also what should i set the limiter at [it was set at 7800] also will a head from a 197 fit my block
thanks for any help
will philip