03 lancer es Evo 8 build
#364
Evolved Member
iTrader: (20)
There is no "best way" to make power. It can be made at different RPMs, in different amounts, at different levels of boost and on different turbos. You can run 8.5:1 with a big turbo and lots of boost, but it will be very unstreetable and would have a very unusable powerband up top. You don't need to lower your CR that much just to run more boost. You can easily run plenty of boost on the stock 9.5:1 CR and have a very responsive engine along with it.
#371
Evolved Member
iTrader: (20)
The OEM headgasket is very strong and reliable when installed and torqued down to spec with ARP head studs. The decomp gasket is a graphite composite if I remember right. RPW doesn't recommend boost over 18psi with it. And over in the Mirage forums you can read a few threads on them popping under boost.