Originally Posted by
blackb13se-r Really^^ I just put bkr6e-11's in my high comp (sr16 pistons) motor. So I would be better with 7's?
It all depends on the compression. Higher compression = more complete burn (more fuel gets burned up) = more heat. Same applies to Turbo, which is essentially makes the motor have a variable compression (Forced Compression), same applies to NOS too.
Originally Posted by
blackb13se-r R5671a-7 is the seven heat range plug, wouldn't the r5671a-8 be too cold for n/a?
4091 is r5671a-7
4554 is r5671a-8
Make sure they are resistor plugs, less electrical interference