Ummm, I thought that part of the attraction of the bigger bore exhaust was to gain more torque lower down the rev range, not higher.Quote:
Originally Posted by WogsRus
Can anyone clarify this, because if the rev range for max torque is raised, I'm note sure it's what I need after all.
Cuppa
from what i read the ZD30 is a bit weird, it appears if you want max tourqe down low, go for 2.5 or 2 3/4 inch, power tends to suit 3" more at some sacrafice of tourque
Just a different donk cuppa, different engines respond differently to any modification.
X 2 on that one talk to Beaudesert, redback or Rods shop, tell them what you want and hopefully they'll tailor make some system to suit you
OK so a bit more of an update.
Took the truck out for a decent spin. Power is definetly up, not mind blowing but ti can go up hills in 5th where previously it was 4th. Torque i sup, but perhaps a bit more in the torque range, hard to tell as power and boost delivery is mush smoother over all.
Boost control is fine, seams to be same in town at 14.5 psi under load, drooping to 12.5 is high load and about 16-18 under cruise as per normal, did see 20psi there at one stage on the high way under cruise, but not under load so should e all good.