turbo oil pressure regulator
turbo oil pressure regulator
04-01-2013, 02:29 PM
#1
I have read that the GTXXXXV turbos can only handle a max pressure of about 30PSI, so the 100+ PSI of oil pressure that the 616 has, along with thick oil, results in oil going out the back.
I am going to be up-grading to a GT2256V and do not want to blow out the seals in that one, so I am going to make a pressure regulator that will keep the turbo oil feed pressure from exceeding 30PSI. I am going to make a new cover plate for the oil filter housing that has the regulator built into it. I will also have a tap for a pressure gage to monitor the turbo oil pressure.
I imagine that this has been done before, just have not seen it yet.
I am pretty sure that I am blowing oil past the turbine seal of my GT2056V that I have on my 616. I have reduced the orifice to .020 and I still am blowing oil out the back to the point where I can see spots on the back of the car.
I have read that the GTXXXXV turbos can only handle a max pressure of about 30PSI, so the 100+ PSI of oil pressure that the 616 has, along with thick oil, results in oil going out the back.
I am going to be up-grading to a GT2256V and do not want to blow out the seals in that one, so I am going to make a pressure regulator that will keep the turbo oil feed pressure from exceeding 30PSI. I am going to make a new cover plate for the oil filter housing that has the regulator built into it. I will also have a tap for a pressure gage to monitor the turbo oil pressure.
I imagine that this has been done before, just have not seen it yet.
04-01-2013, 10:08 PM
#2
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted
Guess i have never really read about blowing seals out with oil pressure. Probably why they have restrictors in them stock.
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted
04-04-2013, 11:37 AM
#4
(04-01-2013, 11:43 PM)aaa I used a restrictor after my GT22 seals blew (it started running away). Hopefully the new seals don't go as well.
My car has 30 lbs at idle, and I think the GT turbos are a lower oil flow design where it just needs a little volume to supply the bushings, as apposed to the T3 that needs a higher volume of oil supply to generate pressure at the bushings.
The GT2056V I have was for a new car that uses thin oil and has a supply pressure of around 30 lbs. Our engines use thick oil and have over 100 lbs of pressure, so even with a .015 inch restrictor, I still am over pressurizing the turbo.
I am glad to hear that I am not the only one who has blow the seals out.
(04-01-2013, 11:43 PM)aaa I used a restrictor after my GT22 seals blew (it started running away). Hopefully the new seals don't go as well.
My car has 30 lbs at idle, and I think the GT turbos are a lower oil flow design where it just needs a little volume to supply the bushings, as apposed to the T3 that needs a higher volume of oil supply to generate pressure at the bushings.
The GT2056V I have was for a new car that uses thin oil and has a supply pressure of around 30 lbs. Our engines use thick oil and have over 100 lbs of pressure, so even with a .015 inch restrictor, I still am over pressurizing the turbo.
I am glad to hear that I am not the only one who has blow the seals out.
04-04-2013, 11:51 AM
#5
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
04-04-2013, 11:51 AM #5Is you oil drain above the oil level in the pan? If there is to much resistance in the oil drain from the turbo it can cause this. on the factory turbo set up's the drain is above the oil level so. can drain freely.
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
04-04-2013, 12:53 PM
#6
(04-04-2013, 11:51 AM)willbhere4u Is you oil drain above the oil level in the pan? If there is to much resistance in the oil drain from the turbo it can cause this. on the factory turbo set up's the drain is above the oil level so. can drain freely.
Yep all is good. It is just a matter of oil pressure compatibility.
(04-04-2013, 11:51 AM)willbhere4u Is you oil drain above the oil level in the pan? If there is to much resistance in the oil drain from the turbo it can cause this. on the factory turbo set up's the drain is above the oil level so. can drain freely.
Yep all is good. It is just a matter of oil pressure compatibility.
04-04-2013, 04:44 PM
#7
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
04-04-2013, 04:44 PM #7How do you have 100+ psi of oil pressure, I thought they only went to about 3 bar ~ 45 psi or so? Or am I missing something?
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
04-04-2013, 05:34 PM
#8
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
04-04-2013, 05:34 PM #8It's 3 bar minimum while driving, the actual is around 100
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
04-04-2013, 06:42 PM
#9
(04-04-2013, 05:34 PM)Simpler=Better It's 3 bar minimum while driving, the actual is around 100
Say whaaaaat!? I never knew
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
04-04-2013, 06:42 PM #9(04-04-2013, 05:34 PM)Simpler=Better It's 3 bar minimum while driving, the actual is around 100
Say whaaaaat!? I never knew
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
04-05-2013, 04:13 PM
#10
noone that knows where to buy?
---------------------------------
daily driver
w115 240d 72hp 3.07 rearend
w123 om602 turbo 200whp 7.5mm pump fivespeed 3.07 rearend
+ a few more.
mbturbo.com
swampmonkey
04-05-2013, 04:13 PM #10got a oilregulator on a car i bought, but am interested in another to limit the oilpressure for the bmw turbo on a 617 engine,
noone that knows where to buy?
---------------------------------
daily driver
w115 240d 72hp 3.07 rearend
w123 om602 turbo 200whp 7.5mm pump fivespeed 3.07 rearend
+ a few more.
mbturbo.com
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