Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Compression ratio 12.5:1. Bye-bye Super charger & Turbo build?

ryridesmotox · 11-02-2011, 04:24 PM

what you might be looking at is a flat or even reverse domed piston depending on what they have in there stock.

Honestly if you are going to do a lower end on this thing, a better option would be to..

a) leaving compression alone and upgrading head gaskets and piston rings... that will allow you to run higher cylinder pressure... oh yea and heavier valve springs...

or----

b) aftermarket subaru sti motor with every option you want, and swap ecu and such.

11-02-2011, 04:24 PM	#17
ryridesmotox Senior Member Join Date: Oct 2011 Drives: 2010 Chevy Cobalt SS, 59 Ford F100 Location: Carlsbad, Comi-fornia Posts: 127 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	what you might be looking at is a flat or even reverse domed piston depending on what they have in there stock. Honestly if you are going to do a lower end on this thing, a better option would be to.. a) leaving compression alone and upgrading head gaskets and piston rings... that will allow you to run higher cylinder pressure... oh yea and heavier valve springs... or---- b) aftermarket subaru sti motor with every option you want, and swap ecu and such. __________________ 2010 Chevy Cobalt SS Treadstone Performance Stage 3 kit: CAI, Charge Pipes, TR8 intercooler, Maf Relocate, 52MM Turbosmart BOV, 3 inch catless downpipe, 3 inch catback, borla XR1 muffler, Exedy Hypersingle, TWM short throw shifter, 24PSI HPtuned by Terminator2 on E85/91