Originally Posted by BMe30
So i did that dyno day today... So from that first dyno pull to todays i was messing around with some tunes and this is what i got with a failing fuel pump..
Ill go back once my new tre-340 fuel pump goes in
Holy lean, get a proper reading and tune that way. Considering a M42 has no way to detect knock I'd be very worried.
Your cylinder temps are probably insanely high, that's how I blew my M42.