zapp168

iTrader: (7)

I ran my STS for a year with 40-70 pounds of oil preasure, well of course the oil started to force past the seals. Are the seals popped out, or just junk? What is the base turbo for the STS? Where can I get a rebuild kit? Thanks

turbochkn

ur scavange pump is probably goin bad.i had sts turbo and i thought the same thing and i checked w a couple people who rebuild turbos and they all said that it was my pump goin bad .

charlie c5

iTrader: (6)

To answer your questing, your turbo is fine, but your scavenger pump is an issue. Fix that and your back on the road...

Turbo 6.0

If you have excessive crank case pressure, via to much blow by, it can make it harder for the oil pump to do it's job.

zapp168

iTrader: (7)

HEEYYY...Thanks guys!!!!!!

ZL1Killa

iTrader: (17)

Ok, first of all there are no real SEALS in the turbo. Replace your scavenge pump with a Mocal or Exa Pump or something equivalent.

that STS scavenge pump is not nice. I just did the Exa Pump


PM me if ya have any more questions, use rear mount guys like to stick together. Everyone else is right also, replace your scavenge pump and you will be on your way

MonochromeSS

iTrader: (1)

First make sure it isn't something simple like a bad check valve.

2ktransam

iTrader: (12)

+1 on the check valve. I had one go bad on my truck and it will dump a ton of oil in your charge pipe on start up.

zapp168

iTrader: (7)

It is at the end of the oil feed line right? I remember it just has enough tension to hold back the oil when you shut off the car, right? Thanks again guys! This is great news!

Blackbird

so ZL1 did you add a restrictor or just change the pump?
you guys have me wondering if I was just getting oil in the pipes due to the car sitting for long periods of time (oil past checkvalve) and perhaps a pump starting to loose it's gusto.

99Ws6TransAm

iTrader: (43)

good read. Im gonna be chaning to a surflo pump. Also gonna pull the pressure switches off, and take the resistor outta the harness.

2ktransam

iTrader: (12)

The check valve is at the end of feed line and it keeps the oil from pooling in the turbo when the motor is off.

2ktransam

iTrader: (12)

I put a reverso pump on my truck and I run it on high all of the time. The reverso pump is only about $180 and it's a lot quieter than the STS pump.

99Ws6TransAm

iTrader: (43)

thats the plan. Cept running a shurflo pump. im gonna put a pad of dynomat before i mount the pump..then bolt the pump down over the dynomat to dampen the sound. Then removing sts restrictor, and hobbs switches.

koolaid_kid

iTrader: (21)

Rather than the dynomat, you may consider isolators:

They keep the vibrations away from the body and allow cooling air to the pump. Just a suggestion.

ModularTurbo

iTrader: (14)

+1 on that

2ktransam

iTrader: (12)

I can't hear my Reverso pump on high unless I'm laying under the truck when it's running. I don't understand how it is so much quieter than the STS one but it is quieter than my Walbro 255 fuel pumps.

2ktransam

iTrader: (12)

That's what I used.

3800SII

Nice! Where can I buy a set of those! I have mine mounted to the frame, but It still makes a ton of vibration and noise...

2ktransam

iTrader: (12)

They should sell something similar at any hardware store.