Piston price
- Thread starter CJ455
- Start date
I just don't understand why forged pistons are so expensive for the Ford six. I can purchase a set of TRW forged aluminum pistons for my Corvair for approximately $360.00, and Keith Black high performace hypereutectic pistons for a little bit more. These pistons are run on a daily basis in Spyders and Corsas (Corvair turbocharged models) without any problems if you keep the boost under 15psi.
Considering there are a h*ll of a lot more 200cid and 250cid six cylinder engines (uses the same piston) than there ever was 145cid and 164cid (uses different pistons) Corvair engines, why isn't there enough market/demand for someone to come out with a cheaper piston?
Let the flames commence!
Considering there are a h*ll of a lot more 200cid and 250cid six cylinder engines (uses the same piston) than there ever was 145cid and 164cid (uses different pistons) Corvair engines, why isn't there enough market/demand for someone to come out with a cheaper piston?
Let the flames commence!
In the Corvair, the boost limit for hypereutectic pistons is around 15psi without water injection or knock sensor/retard units. Excessive knock will shatter a hyper piston like a piece of glass; a forged piston will deform.
The advantage of hypereutectic pistons is that they do not expand as much as standard or forged pistons, so you can run tighter tolerances. Tighter tolerances yield less blowby, and therefore, more boost.
The advantage of hypereutectic pistons is that they do not expand as much as standard or forged pistons, so you can run tighter tolerances. Tighter tolerances yield less blowby, and therefore, more boost.
