oil smoke out of exhaust on my thumper turbo setup
06-18-2006, 11:28 PM
#1
oil smoke out of exhaust on my thumper turbo setup searched around a bit, just want to get some more opinions.
i have a large frame garrett turbo that sits super low in the car. Im running a -4 feed with a .070 restrictor in it. For return/drain im running -8 line to a tilton differencial pump back into the timing cover.
occassionally the car smokes out of the tail pipe. When it does smoke it will smoke at startup and continue to smoke for a while. Other days its totally fine.
My understanding is that the garrett turbos run a ring that actually seals the oil from the center housing. Do you think its possible that the oil is siphoning out of the pickup tube for the oil pump and into the turbo, then out into the downpipe and out of the exhaust housing?
im not losing any substantial amount of oil, but i look like a 2 stroke dirt bike some days, other days theres a huge amount of smoke.
i have two actions im considering, one is install a check valve in the line to avoid siphoning, the second is to install a smaller restrictor.
i have a large frame garrett turbo that sits super low in the car. Im running a -4 feed with a .070 restrictor in it. For return/drain im running -8 line to a tilton differencial pump back into the timing cover.
occassionally the car smokes out of the tail pipe. When it does smoke it will smoke at startup and continue to smoke for a while. Other days its totally fine.
My understanding is that the garrett turbos run a ring that actually seals the oil from the center housing. Do you think its possible that the oil is siphoning out of the pickup tube for the oil pump and into the turbo, then out into the downpipe and out of the exhaust housing?
im not losing any substantial amount of oil, but i look like a 2 stroke dirt bike some days, other days theres a huge amount of smoke.
i have two actions im considering, one is install a check valve in the line to avoid siphoning, the second is to install a smaller restrictor.
06-19-2006, 03:36 AM
#3
TECH Addict
iTrader: (4)
Join Date: Sep 2002
Location: Boise, ID
Posts: 2,542
Likes: 0
Received 0 Likes
on
0 Posts
Can I see a picture of how the turbo is mounted?
How high up is the turbo from oil level in your pan? Installing a smaller restrictor should not fix the problem either, have you considered a scavange pump to assist with oil returning?
How high up is the turbo from oil level in your pan? Installing a smaller restrictor should not fix the problem either, have you considered a scavange pump to assist with oil returning?
Trending Topics
06-19-2006, 06:16 PM
#10
Originally Posted by MIGHTYMOUSE
prolly need that reservoir for the oil to collect and de-foam before pumping to the pan.
my sporadic smoking has gone since applying vaccum to the crankcase
my sporadic smoking has gone since applying vaccum to the crankcase
i have my old air pump here..i may have to engineer something.
06-19-2006, 06:22 PM
#11
i had occasional light smoke when shifting at wot or under hard braking. but then again it went a way by pulling only 1" of vaccum at idle
i am using intake vaccum. if you use an air pump i heavily reccomend an oil separator before it. i burned up my stock air pump doing the same thing years ago, figured it choked on oil.
i am using intake vaccum. if you use an air pump i heavily reccomend an oil separator before it. i burned up my stock air pump doing the same thing years ago, figured it choked on oil.
06-20-2006, 12:14 PM
#15
Originally Posted by Got Me SOM
3 more days till I'm in Jersey. If you want I could video your car and post it up here. Looking forward to seeing your car. 
I put a mocal pump on my TA and ran 10an out of the T70 and 10an into the oil level sensor hole in the side of the pan. Seemed to work okay, I am running an .050 restrictor on mine though I think and -4an feed. I needed some pressure valve deal to get down from 60 psi pressure, as it was still blowing some oil into the charge pipe. Good luck with your issue man, I freakin hate smoke.
06-20-2006, 06:06 PM
#16
Originally Posted by 67Firebird455
Not to change the subject, but that is a bad *** lookin camaro, loving the wheels man...
I put a mocal pump on my TA and ran 10an out of the T70 and 10an into the oil level sensor hole in the side of the pan. Seemed to work okay, I am running an .050 restrictor on mine though I think and -4an feed. I needed some pressure valve deal to get down from 60 psi pressure, as it was still blowing some oil into the charge pipe. Good luck with your issue man, I freakin hate smoke.
I put a mocal pump on my TA and ran 10an out of the T70 and 10an into the oil level sensor hole in the side of the pan. Seemed to work okay, I am running an .050 restrictor on mine though I think and -4an feed. I needed some pressure valve deal to get down from 60 psi pressure, as it was still blowing some oil into the charge pipe. Good luck with your issue man, I freakin hate smoke.
