StuckinMud
Absolutely Clueless....
- Joined
- May 10, 2006
- Messages
- 204
OK .. First I have smoked the search button.. here and else where.
It seems there has not been a definitive consensus on use of the QSB piston in the cummins 5.9.
Some builders have said that it ultimately yields less power than the emissions & melt prone later 04.5 up design. Others like the QSB for its better thermal attributes.
So power wise why would or would not the QSB piston be the way to go?..Technically !! Assume we are using the properly degreed 7 hole QSB nozzle.
I have not been able to find a real explanation as to why or why not the re-entrant design piston is better or not. Flame propagation?
Lets weigh it out before I drop the coin..
Thanks!
It seems there has not been a definitive consensus on use of the QSB piston in the cummins 5.9.
Some builders have said that it ultimately yields less power than the emissions & melt prone later 04.5 up design. Others like the QSB for its better thermal attributes.
So power wise why would or would not the QSB piston be the way to go?..Technically !! Assume we are using the properly degreed 7 hole QSB nozzle.
I have not been able to find a real explanation as to why or why not the re-entrant design piston is better or not. Flame propagation?
Lets weigh it out before I drop the coin..
Thanks!