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.