Forced Induction Superchargers | Turbochargers | Intercoolers

STS oil problem

Old 11-08-2005, 01:28 AM
  #1  
Launching!
Thread Starter
 
ozzykicks2002's Avatar
 
Join Date: May 2005
Location: Tucson, AZ
Posts: 216
Likes: 0
Received 0 Likes on 0 Posts
Default STS oil problem

So we have my system all done and we decided to put a new oil pump in it. so we put in the ls6 oil pump. now when I get on it I make crazy oil pressure! like I should be at 40 but it will increase all the way up to 60 70 PSI!!! and when we had her on the dyno the oil reture line started to over flow onto the engine! what do I need to do here?
Old 11-08-2005, 03:42 AM
  #2  
12 Second Club
iTrader: (15)
 
baldurann's Avatar
 
Join Date: Sep 2004
Location: Kingwood, TX
Posts: 576
Likes: 0
Received 0 Likes on 0 Posts
Default

It was to my understanding that you should be around 40psi oil pressure at idle?
Old 11-08-2005, 02:10 PM
  #3  
TECH Fanatic
iTrader: (25)
 
trtturbo's Avatar
 
Join Date: Mar 2004
Location: Newark, Tx.
Posts: 1,810
Likes: 0
Received 0 Likes on 0 Posts

Default

figure out where its coming from; the cap where the hole is or the coupler.
If its the cap where the fitting is screwed in, you may try a little thread tape to seal it better. If its the coupler, you may need another one.
I really wouldnt think the engine oil pump would have anything to do with it. It supplies pressure to the turbo, but your scavenging pump supplies the return pressure.
Old 11-08-2005, 02:40 PM
  #4  
TECH Addict
iTrader: (14)
 
GR33N GoblinM6's Avatar
 
Join Date: Jan 2005
Location: Utah
Posts: 2,301
Likes: 0
Received 1 Like on 1 Post

Default

my friends car is 40-42 idle.. then when he gets on it, it goes to 60-65.. i was told this was normal do to a turbo..

he also has a 05 WRX STi.. and its at 65psi most of the time.. its a turbo car also
Old 11-08-2005, 03:04 PM
  #5  
TECH Fanatic
iTrader: (2)
 
Paul F's Avatar
 
Join Date: Nov 2001
Location: Baton Rouge
Posts: 1,894
Likes: 0
Received 0 Likes on 0 Posts
Default

60-70 is going to be normal at WOT in the higher RPMs. I think your oil leaking problem is totally unrelated to the pressure.

.
Old 11-08-2005, 03:05 PM
  #6  
On The Tree
 
neat's Avatar
 
Join Date: Jan 2002
Location: Raleigh, NC
Posts: 104
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by ozzykicks2002
So we have my system all done and we decided to put a new oil pump in it. so we put in the ls6 oil pump. now when I get on it I make crazy oil pressure! like I should be at 40 but it will increase all the way up to 60 70 PSI!!! and when we had her on the dyno the oil reture line started to over flow onto the engine! what do I need to do here?
60-70 PSi at WOT is normal.

If you're leaking from the return line of the turbo, it has nothing to do with the LS6 oil pump. See where it's leaking from and tighten the fitting, use some teflon tape there, or replace the leaking component.
Old 11-13-2005, 07:04 PM
  #7  
Launching!
Thread Starter
 
ozzykicks2002's Avatar
 
Join Date: May 2005
Location: Tucson, AZ
Posts: 216
Likes: 0
Received 0 Likes on 0 Posts
Default

So is there a way to turn down the STS scavage pump? maybe so it does not pump so much?
Old 11-13-2005, 07:20 PM
  #8  
TECH Junkie
iTrader: (1)
 
Jammer's Avatar
 
Join Date: Dec 2002
Location: Albany, NY
Posts: 3,657
Likes: 0
Received 2 Likes on 1 Post

Default

Originally Posted by ozzykicks2002
So is there a way to turn down the STS scavage pump? maybe so it does not pump so much?
Its a two speed pump, depending how its installed...vacuum referenced...or can be set to run high (or prob low) full time.
Old 11-13-2005, 07:28 PM
  #9  
EPP
FormerVendor
iTrader: (22)
 
EPP's Avatar
 
Join Date: Mar 2003
Posts: 13,063
Likes: 0
Received 1 Like on 1 Post
Default

The STS return system into the valve cover is not a very good design, in my opinion. It is way too easy for it to leak oil onto the exhaust. We're having a problem with it, and I have read of others who are also experiencing problems. It is totally unrelated to your engines oil pump, as has already been mentioned. Bob

Last edited by Exotic Performance Plus; 12-17-2005 at 05:26 AM.
Old 11-13-2005, 07:37 PM
  #10  
7 Second Club
iTrader: (7)
 
NicD's Avatar
 
Join Date: Nov 2001
Location: Chandler, AZ
Posts: 2,722
Received 283 Likes on 187 Posts

Default

Just return it to the oil pan like most other turbo kits and stick a breather on the valve cover in place of the oil filler neck.
Old 12-12-2005, 06:44 PM
  #11  
Launching!
Thread Starter
 
ozzykicks2002's Avatar
 
Join Date: May 2005
Location: Tucson, AZ
Posts: 216
Likes: 0
Received 0 Likes on 0 Posts
Default

that is what we are going to do I think..
Old 12-16-2005, 10:02 AM
  #12  
Launching!
Thread Starter
 
ozzykicks2002's Avatar
 
Join Date: May 2005
Location: Tucson, AZ
Posts: 216
Likes: 0
Received 0 Likes on 0 Posts
Default

so does everyone just think that the oil reture line is bad? or that I need to tap my oil pan? or is there a way to turn the oil savage pump down?
Old 12-16-2005, 03:07 PM
  #13  
TECH Enthusiast
iTrader: (1)
 
NYSS Guy's Avatar
 
Join Date: Sep 2004
Location: West Palm Beach, FL
Posts: 645
Likes: 0
Received 0 Likes on 0 Posts
Default

I am removing the PCV system on mine, and I'm going to use one of the nipples off the valve cover to run my return line (one that is used by the PCV. And then I'll stick a breather on the oil fill hole, as noted above. I don't see any reason why that shouldn't work.
Old 12-28-2005, 08:49 PM
  #14  
On The Tree
iTrader: (2)
 
Lrry93's Avatar
 
Join Date: Aug 2005
Posts: 167
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by NYSS Guy
I am removing the PCV system on mine, and I'm going to use one of the nipples off the valve cover to run my return line (one that is used by the PCV. And then I'll stick a breather on the oil fill hole, as noted above. I don't see any reason why that shouldn't work.
Any updates on how this worked?
Old 12-28-2005, 09:32 PM
  #15  
TECH Enthusiast
iTrader: (1)
 
NYSS Guy's Avatar
 
Join Date: Sep 2004
Location: West Palm Beach, FL
Posts: 645
Likes: 0
Received 0 Likes on 0 Posts
Default

check your other thread...the car hasn't been started yet. Although, I'm hoping to finally start the car tomorrow!! I'll let you know if it works out.


Thread Tools
Search this Thread
Quick Reply: STS oil problem



All times are GMT -5. The time now is 09:06 PM.