Side note: For an engine running 10psi or slightly higher, what would be an ideal compression ratio? Around 8.5:1? I know there are 100 factors that determine all of this, but I like to ask questions! Assume it will be intercooled with some form of alcohol/methanol injection, so the heat will not be crazy!
I would run 9.0:1
If you are only going to run 10 psi, intercooled, meth injection,
you could run cast pistons, that will save some $$$$
Just do not let the engine detonate. My Syclone has Hyperutechnic pistons stock, they are brittle, but I run as high as 25 psi of boost pressure w/those weak pistons,,, but the engine has a knock sensor & I use a J&S safegaurd system on it.
http://www.jandssafeguard.com/ My friend is good friends w/the owner & is a distributer for J&S..
I would highly recommend a J&S, they are pricey, but it can save your engine. Also some F.Y.I., you cannot always hear detonation , but w/having a knock sensor installed, it can hear the knocking when you cannot.
Here is a set & you will have 2 extra.
http://www.ebay.com/itm/380443032714?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649Untimately, forged pistons are the way to go. But,,, it is not manditory.
It just depends on how much you are willing to spend on a good bottom end.
Buick GNs/Regals used cast pistons stock, ran 14 psi.
Syclones & Typhoons used cast pstons & ran 14.7 psi boost pressure stock.
Both examples have factory knock sensors installed.
MBHD
