Engine/Transmission (1998.5 - 2002) a Q about injection pumps

[SField]

is there a difference in a HO model and a non HO, because TST sell them both and there is a $50. 00 difference.

 

[lmills]

Yes, there is a difference. I believe I read somewhere on a stock SO truck a HO pump will add some power. However if you put the HO pump on a modded truck it won't run properly.



to make the story short, yes there is a difference

 

[McDowra]

we put a HO pump on mine and I gained 5-6 lbs of boost. Haven't had time to dyno yet. I can now hit 36-37lbs of boost.



Tim