Engine/Transmission (1994 - 1998) Turbo Boost

[TGroves]

i need to make alittle more boost ,,right now i can only see 40-43 psi ,,, do i need the adjust the\waste gate or a new boost elbow,,, or make the waste gate arm shorter or longer????

 

[Bart]

I didn't see any mention of turbo upgrade in your signature, I may have not recognized it either. That said, I can tell you that my oem turbo would boost around 30'ish and then I went to the 62/14cm from Schwitzer. I wasn't impressed until I found out that I had three intake leaks. Two I'll bet were from the new turbo "blowing out" my intake manifold gasket in two places. The third was a tiny hole burnt in the plastic line leading up to the gauge. Many people kept saying "leaks" but no ideas how to find them on a noisy 12v'r. Mark at Pier's said to pressurize the system to 20 psi. With that idea I got two pucks made, one with a air line regulator and a quick air line disconnect installed and the other with a 30 psi gauge screwed into it. From the first rubber hose off the turbo to the last rubber hose before the ATS arc flow elbow all was fine. I removed the puck with the gauge from the last hose before the intake and reconnected the rubber hose to the intake. With 20 psi going into the intake I found that third leak. The first two was a matter of looking, I could see one intake gasket edge outside the cover plate, the other one was inside and back where I couldn't see it until I removed the intake cover plate. The air line pucks will show up any leaks in short order. I had the pucks made at Desert Molding Concepts Inc. 15370 Cholame #13 in Victorville, Ca 92392. I told the owner that I was going to post this information and that interested Dodge owner might be calling. Business phone is 760 955 1409

 

[TGroves]

sorry gota sps62/14 from II I CAN SEE 40-43 PSI no prob ,,i need alittle pressure

 

[Bart]

Sounds like me may have about the same thing. My 62/14 will bury the needle on my 35 psi guage. I guess I'll have to go to the 60 psi unit. Darn the luck. I do understand that pressures like this are hard on head gaskets. That'll be my next change. A ported head with o rings. Oo.

 

[JFaughn]

Not sure if there is one on that turbo , but there is a small elbow that some are putting on at turbo to tune the waste gate , goes between intake manifold hose & waste gate , has a needle valve for adjustment .
Some here in classifieds , permotions .

 

[Vaughn MacKenzie]

How far can you push a SPS? Where does it run out of its efficiency map?