STS Oil Restrictor/Pump Install How-To (Fix for oil in intake/exhaust pipes)
07-08-2009, 04:49 PM
#62
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09-15-2009, 08:46 PM
#63
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Is this restrictor a good upgrade to the STS if you are keeping the STS pump also?? My kit had oil all through the pipes with the stock STS kit, now going to a TC78, should I change the restrictor or run no restrictor?
09-24-2009, 11:27 PM
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after reading this thread and having my own oiling problems i think i am officially sold on the Mocal oil pump, im hoping i dont have to add a restrictor to the system im really hopin this solves all the excess oil thats getting into my exhaust/intake!
10-11-2009, 03:40 PM
#65
just a few of questions (and can you add pix I'll somewhat of a visual learner) where did you put the IAT sensor and is there anything else slowing the oil to the turbo besides the resistor? The mocal pump flows this way turbo-->pump--->engine (flow from left to right)and the STS pump flows this way engine<---pump<---turbo (flow from right to left) am I correct on that understanding? So you just swapped the sides that feeds it?
10-12-2009, 05:50 PM
#66
I had an oiling issue, and tried the restrictor and it starved my turbo of oil and my turbo took a crap. I sent the turbo to STS and it was obvious there was oil starvation issues. I dont aggree with the restrictor. It sounds like a good idea, but starving the turbo is BAD....... Right..?
10-12-2009, 06:26 PM
#67
An answer or two... My Intake Air Temperature (IAT) sensor is in the stock location, in an aftermarket Alumimun elbow; I used a touch of silicone to lock it in as I'm running about 11 lbs of boost and I didn't want to shoot it out of my intake stream.
Nope; not in the stock STS kit. The dual relay setup uses the STS supplied 1 psi switch (mounted on the intake) to trip between Lo and Hi flow on the oil pump. Below 1 psi = low; about 1 psi at the intake, triggers the 2nd relay and the pump runs w/o the in-line resistor at Hi speed. The oil restrictor is for reducing oil volume to the turbo.
Not exactly; both systems are as follows:
engine --> (optional restrictor) --> turbo -->
STS OR Mocal oil pump --> engine
I hope this helps.
BTW - Post oil restrictor install, MY oily MAF problem is fixed!
(Now all I need to do is wrap everything and get yet another tune!)
engine --> (optional restrictor) --> turbo -->
STS OR Mocal oil pump --> engine
I hope this helps.
BTW - Post oil restrictor install, MY oily MAF problem is fixed!
(Now all I need to do is wrap everything and get yet another tune!)
10-12-2009, 06:30 PM
#68
I had an oiling issue, and tried the restrictor and it starved my turbo of oil and my turbo took a crap. I sent the turbo to STS and it was obvious there was oil starvation issues. I dont aggree with the restrictor. It sounds like a good idea, but starving the turbo is BAD....... Right..?
10-12-2009, 10:25 PM
#69
Not exactly; both systems are as follows:
engine --> (optional restrictor) --> turbo -->
STS OR Mocal oil pump --> engine
I hope this helps.
BTW - Post oil restrictor install, MY oily MAF problem is fixed!
(Now all I need to do is wrap everything and get yet another tune!)
engine --> (optional restrictor) --> turbo -->
STS OR Mocal oil pump --> engine
I hope this helps.
BTW - Post oil restrictor install, MY oily MAF problem is fixed!
(Now all I need to do is wrap everything and get yet another tune!)
thanks for answering the questions but I was wondering about the flow of the oil pump
-----------_____------------------------______
__________lxxxxxl Mocal_______________lxxxxxxl STS
__________lxxxxxl Pump_______________lxxxxxxl Pump
turbo----->l____ l--->engine engine<----l_____l <-----turbo
Last edited by The Fugitive; 10-12-2009 at 10:32 PM.
10-13-2009, 08:05 AM
#71
It is not meant to push oil to the turbo.
As stated above, there are directional arrows on the pump itself which indicate oil flow.
01-17-2011, 01:04 AM
#72
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getting an STS turbo installed at the moment... im definately going to do the pump... now i have a question, if im running the turbo the kit came with which is the 60-1, would you guys recommend i do the restrictor? i want to upgrade to a T-67 but thats in the future, id rather do heads and cam next... then upgrade turbo. thanks for this informative thread.
Last edited by 20TA02; 01-18-2011 at 12:56 AM.
04-09-2013, 09:50 PM
#73
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experiencing the oil in the exhaust and intake. not so much now but its still not good. im trying a .040 restritor and shorting the pre pump return line. mines custom so i did all the leg work myself. my oil returns to the pan and i feed with a 4an and have a check valve pre turbo and then return it all with 10an lines. i do have a .080 restrictor in there now. im gonna try and shorten the line first and if this all doesnt work, im getting a bigger pump. i have one of those larger gear oil pumps that look simular to STS's but is as large as the Mocal styles. plus im hunting boost leaks 
