Originally Posted by rapidcossie
Originally Posted by jhw
Originally Posted by Doug Stirling
Originally Posted by Mike Rainbird
The reason the high comp engines give relatively low torque is as Chip explained - high comp engines can't run as much boost as low comp engines. Boost = torque.
Mike, I notice in the Cosworth Racing catalogue that they stock/list pistons that are 6.8:1 and 6.2:1
What sort of application are these for?
And how would a big power (say over 600 BHP) road car engine perform on such low comp pistons?
6:8:1 they used in some rs500 touring cars.
Neil Callan runs 6:9:1 cosworth pistons and a kkk turbo so best ask him.
Maltese run big power on 6:8:1, 6:9:1 etc they get good power and don't have to use much boost even on shit fuel.
mines runs 7:1 custom JE pistons.
mark tried advancing my car so far to the point that it started to lose power and still no det
so that to me says that your cr is not optimised to the spec of your engine.