flat top or dished pistons for boost
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flat top or dished pistons for boost
For a Dart Little M based 400 small block build which would you use with forced induction? I found a set of Ross flat tops I like but they are only rated for 8 psi. There doesn't seem to be a lot of turbo flat top pistons available. My thought on the flat top would be the top of the piston would be more of a uniform shape and thickness IE be stronger than a dish. I can go either way as I'm getting after market heads with either 64cc or 76cc chambers depending on what pistons I use. The turbo will be a BW S480 and I'm not looking at running anymore than 20 psi with a 2 bar map sensor. I was told using the Chevy Cobalt 2 bar map is actually more like a 2.5 bar as it can read past 14.7 psi. Anyway which would be better and why?
#2
I would agree that a flat top piston would be stronger but if you get a good name part you should never have a problem with a dish piston. 16040747 part number 3 bar map is what I used, works real well and its cheap.
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Can someone point me in the right direction of a flat top specifically for forced induction? This is the ross piston I was talking about earlier. How is an extra heavy duty forged 2618 piston only good for 8 psi?
Ross Racing Pistons Products