Major surging with dual CP-3s and twins.

[Blacksdieselhp]

I just bought a truck with dual cp-3's(pulley says PPE, so i guess its their kit), BD twins, Triple Dog, and TST( the new one with adjustible pressure). This truck runs extremely well I think, but sometimes it surges pretty bad. Can't tell if its the turbos or what. Never had twins to do this before. Could it be the dual CP-3's? I haven't played with the settings any yet. But especially when you run it through the gears hard and it hits OD, when it sould set into pulling hard, it surges. It also has $8500 worth of suncoast transmission. Any help will be appreciated. Thanks

 

[WUnderwood]

unplug the pressure connections of the TST, some of them surge real bad

let us know if that fixes the problem

 

[Summit]

my truck hates the TST pressure, i had to unplug it. went back to the torque dog.



does it have a fuel pressure guage?? i know for fact that dual cp3's will call for more fuel than some/most lift pumps can push. what level on the TST does it buck? all? or just past 5/5 ish?



what program is the TST on? early twins, late twins, standard???

 

[Tomeygun]

copy that about the TST - My truck hated the TST doing pressure - I ended up piggy backing the EZ back on but I still can read pressure from the TST if needed... .

 

[lcaad1249]

Is there an aftermarket lift pump on the truck?