Chris'stransam

iTrader: (7)

What is the best pistion to use with about 18 -20 psi . My motor builder wants to use Mahle . How ar they compared ot the others . What is in yor boosted car ?

allout06

iTrader: (11)

im running -15cc Diamond pistons, plan on running 18-21 psi

thompson

iTrader: (4)

I would strongly recommend using a 2618 forging. Mahle is designed for light duty performance. That will be a high boost level for your use. Diamond pistons and Probe pistons are what we use in our boost motors with great success. We have also made many exclusive lines for boost specific vehicles as well. If you need any good boost components feel free to give us a call.

stock48

iTrader: (17)

I've ran both Autotec and Mahle 4032 forgings in some pretty big power combos and they have worked out well. They can run tighter and will keep ring seal better on a daily driver imo. They will also take some abuse if you have the correct design, and setup. I do agree that a 2618 is a stronger alloy, and tougher piston like said above.