Thread: Pulley Drop Vs Higher Timing (Custom Tune)

why?

How exactly does the posi-trac rear end on a Plymouth work? It just does.




Load, cylinder temps, predetonation, fuel, mixture, cylinder pressure...

Originally Posted by FoSHO99

How exactly does the posi-trac rear end on a Plymouth work? It just does.

so i wasnt the only one watching joe dirt the other day then...

Originally Posted by Bio248

so i wasnt the only one watching joe dirt the other day then...

nope i was too... lol

plus i know we all know this but for the new guy the reason timing is so high while cruising is to get better mpgs... not so much for "performance" persay...

ok, your BOTH right.

Timing increases with engine speed AND with decrease in load.

HOWEVER, our boost goes up with rpm as well introducing another factor.

I find my timing drops a couple degrees from 3000-6000rpms or it will knock.