Originally Posted by
Ima Racing
...he was producing big power high comp road cars when the other tuners were saying you needed low comp and its just not possible to do, i remember well, back in the day i was shot down everytime i said this as "not possible" look at the change now!!!
Light years ahead imho!
I think you are missing the subtle difference that he was building high comp engines for race fuel, and people like Harvey gibbs were saying low comp for road fuel.
More than one way to skin a cat anyway though, there is no definitive right and wrong answer on something like compression, its very dependant on the rest of the engine, JG's engines tend to be designed to work mainly at very high rpm from what ive seen, and that means you can get away with more comp than if you want loads of midrange torque, even on the same fuel.