Originally Posted by
Markey Mark (BD)
I'd say on the turbo you have now 200bhp is going to be slight push, i'd opt for something alittle bigger.
A change of cam isn't normally needed, 200bhp can be obtained with a standard cam in place whats more important is the carb is set up right for the boost you want to run.
Doesn't matter what engine spec, turbo spec or boost you run you should always aim for around the 12.1 AFR on WOT, aiming for that will get you in the right area.
As for carb spec is really depends on how your engine performs and fuel system is doing, as a very rough guide i'd say 25mm venturi, 1.2mm main jet, 1.1-1mm ac jet, 1.3 2nd stage and a 2mm needle valve. Thats a very rough guide though, you may find out your carb needs smaller or larger jets depending on how it performs.[/quote]
is your guide for 180hp m8.