Dishing my own pistons

[Luke95]

Im a machinist, In training I should say
What is the formula for how much to take off to get a certain dish? I want to dish my pistons out 20CC for use in my 4.5 stroker with a turbo

[CobraMarty]

IDK if the top of the stock piston is thick enough to dish...

[Cheromaniac]

Im a machinist, In training I should say
What is the formula for how much to take off to get a certain dish? I want to dish my pistons out 20CC for use in my 4.5 stroker with a turbo

Each 1cc added to the piston dish volume will reduce the CR by 0.1.

[SilverXJ]

What pistons are you using? See here as well: http://www.jeepstrokers.com/forum/viewt ... =34&t=3001

Each 1cc added to the piston dish volume will reduce the CR by 0.1.

I believe he wants to know how much to cut to get x amount of cc increase.

[Luke95]

That is the game plan, but im also trying to figure out how to program the CNC so it will do it in one shot

[Cheromaniac]

I believe he wants to know how much to cut to get x amount of cc increase.

Oh OK. In that case each 0.010" the dish is made deeper adds 1.15cc to the volume.