Sorry for the delay in replying to this but one or two things have rather pushed racing into the background. When i stripped the motor it had shattered the wrist pin and the piston and squish band showed evidence of severe detonation. Having a look at the rest of the boat revealed that the bendy...
Thanks guys. Still working on this motor which appears to have been eating itself! More details to follow but too busy at the moment sign writing 15 large John Deere tractors.
Busy Bob
Some advice please on squish clearance for a Nova Rossi Rex 3.5 running 25% nitro and pipe length for circuit racing. Having throttling problems with this engine something chronic!
Thanks
Bob