What ratio would you guys put on a GS-R Vtec non Turbo. I want to have a redline around 8500-9000 and still make power? What should i get? I have the money, just need some help.

 

i'm running a fully built '99 gs-r with JE 10.5:1 pistons and a mugen head gasket with a milled head (i'm kepping the list short and sweet). i'm at about 11.2:1 now and make 199whp. it runs on 91 octane and is very reliable. i would not exceed 11.5:1 as detonation will occur unless you can run a higher octane fuel. sucks in cali...91 octane is the highest...before race gas of course.

 

excuse the off-topic comment here


what the heck ? u people in the U.S. have 91 octane (the highest) gas?

i live in greece , and our choises of gas are : Unleaded 100 (rare) , Unleaded 98 , Un leaded 95 , Super (98 octane , not unleaded) , Disel .

i use 98 octane on my 93 teg .

is there some kind of law in the us regarding higher octane gas?

 

ok time to break up this noobie thread lol

93 octane here in IL is the highest, some places have 94... im running 11.4 right now, and ive seen motors up to 13:1 CR running on 93 octane, as long as it's tuned correctly...

if you're going all motor and you want power, search

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lke2drvgsr &raquo;</TD></TR><TR><TD CLASS="quote">ok time to break up this noobie thread lol</TD></TR></TABLE>The octane posted on USA gas pumps is the average of MON & RON. I believe in Europe they just post RON. It's not unusual to see a spread of 10, so the '93' I can buy here in Ohio can easily be 96 or 98 RON unleaded.

 

im running 11.2cr off of the shittiest gas in the usa. arizona 91 octane makes my ride **** whenever im over 8500rpms.