Where should i run my lift pump psi

[RayRoss42]

When i got my truck back with the new set up a month ago the Airdog 165 was set at 10psi.. A couple weeks later i put a more rowdy tune on it and the psi started to drop at wot where it didnt drop a hair before.. I bumped it up to 13psi and it still drops a little at WOT.. How much Psi is too much before i start tearing sh*t up??

 

[Diesel Tech]

Depends on the model year. Most of the LB7/LLY trucks will not handle much over 9 psi and the LBZ and newer seem to be OK with 12 psi

 

[RayRoss42]

lbz

 

[GADieselGTO]

I pushed my LBZ up to 20 and it seem to be ok at first, but a few weeks later it started blowing through the regulator. I also run it on our dyno and the difference from 10 to 20 pounds and it gained like 7 hp. which cud have even been a fluke. It didnt seem to help my pressure drop much at all. Not worth it IMO

 

[RayRoss42]

Yeah i see what your saying GA.. No matter what i guess its going to drop a little pressure..

 

[dukcaln]

No more that 12psi.... or trouble