high compression pistons [Archive]

randyj69

09-13-2009, 01:56 AM

is 10.7:1 tooo much compression for a stock head

alexelie

09-13-2009, 03:01 PM

i dont know but you would need to run premium gas with that much compression.

TheMAN

09-13-2009, 05:03 PM

too much for american gas and stock ECU

drgnzadiel101

09-13-2009, 05:27 PM

yea my h22 had an 1 compression and you can only run premium. sorta worthless on these cars though