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|Jensen Healey wrote:
The 907 is already substantially over square and has real issues with torque at under 3500 rpm. Boring the cylinders .060 over will only make it worse.
Just throw a supercharger on it.
Ok, I'll bite...how does boring .060" over standard, reduce torque ? Cylinder head air flow should increase. Thermal losses should be reduced. As I understand it, psi created, when mixture lights-off, now more square inches = more total pressure= more torque/power. Cheers, roverman.