sc_sjo

iTrader: (7)

Hi all

I'm curious as to what point of tune/spec people change from PFR6B plugs to 7's? At what point of tune/power do you see a problem?

Cheers

scottydouk

iTrader: (3)

above standard boost pressures

sc_sjo

iTrader: (7)

Any more detail?

scottydouk

iTrader: (3)

The idea of going higher plug rating is so engine runs cooler combustion (in basic terms). If going over 320bhp and more than 1.1bar boost this would make sense to do to be safer. If you use nitrous need to use 8's.

sc_sjo

iTrader: (7)

Yeah I know why you use colder plugs, i'm just trying to find the power range of the 6's on a typical EJ20 engine.