Engine/Transmission (1998.5 - 2002) just a question

[GarrettWiesjahn]

I have a 2000 5. 9 cummins and I was just wondering what is the normal max boost pressure for a stock turbo because sometimes iam getting it up to 29 psi and some one told me that is to high

 

[Diesel Gunner]

Which engine do you have, standard or HO?



My HO will make about 19lbs.



You may have a programmer on it and not know. Maybe take a look to see if someone has put something on the wastegate to keep it closed. without extra fuel I doubt that it would make 29lbs of boost.



One last thing, is your guage correct?

 

[GarrettWiesjahn]

I do have a programmer and a raptor lift pump and upgraded banjo bolts and an upgraded transmission but that's all and I don't have a HO and the boost sensor is brand new and it goes right to my edge juice with attitude

 

[Road Dog]

Mine goes to 16 psi. I think up to 20 is normal. Your waste gate could be stuck or wired shut or a J-hook or boost elbow attached (depending on the turbo). 29 is a little high (it's outside the recommended range for a stock turbo) and you probably have high exhaust temperatures too.

 

[Bob4x4]

29 psi is fine with an edge box. It is not even close to any risky level

 

[Bob4x4]

If your truck only goes to 16 psi with an edge box you need to find out why

 

[Road Dog]

The waste gate is 100% mechanical so to get more boost I need a J-hook for my HY35 turbo.

 

[JR]

I can easily make 30+ with my Smarty and mild injectors no problems.

 

[klcammie]

ON MY 01 i was only getting 19. then i put a boost elbow and fooler on, now i have it set for 26. It will make 29 but it sounds better and runs better at 26. without the fooler i would set overboost and derate engine at about 22-23. with elbow and fooler EGT are about 75 lower. I like

 

[Bob4x4]

The waste gate is 100% mechanical so to get more boost I need a J-hook for my HY35 turbo.

If you can only get 16 psi you have a problem . An Edge juice with an hy should literally jump to 19-20 with out any mod to the actuator

 

[GarrettWiesjahn]

thanks for all the advice ive just recently became a cummins owner and my goal is 600 hp so might be on here with more questions thanks for all the help once again guys

 

[Sticks]

You'll get to 400hp pretty easily, but the last 200 are going to be expensive. Twins, head work, another set of injectors, maybe a hybrid VP44.