APS TT Smoke under WOT
09-03-2007, 06:01 PM
#21
Can't you just buy the Garrett GT25 turbo core and call it a day?
Also, didn't Garrett have some sort of rebuild specials where they give you a new core for only $400?? I remember Tig did this.
You might still have some oil in your exhaust system.. Put some more miles and see if the smoke disappears. I hear that Garrett turbo seal doesn't go bad easily..
Also, didn't Garrett have some sort of rebuild specials where they give you a new core for only $400?? I remember Tig did this.
You might still have some oil in your exhaust system.. Put some more miles and see if the smoke disappears. I hear that Garrett turbo seal doesn't go bad easily..
Last edited by leeboyNY; 09-03-2007 at 06:03 PM.
09-03-2007, 06:08 PM
#22
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most guys that rebuild their APS TT I believe send it out to Cali and get the housing machined and install GT28 centers.
I believe GTM knows more about this you can ask them.
I believe GTM knows more about this you can ask them.
09-03-2007, 06:14 PM
#23
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YOu can rebuild it urself. Just order a new centre section. its a simple swap. measure the wheels and specificy the trim u need. Ball bearing turbos cant be rebuilt because they use parts which break when opened up. So u need a new centre. That said, make sure ur oil level is good. It cant be over the bottom line or you will smoke. As a last resort before rebuilding, you can also add a oil pressure restrictor to the turbo.
09-03-2007, 06:34 PM
#24
I have heard of a recommendation for JWT TT oil return lines to be tapped higher into the upper oil pan to avoid being returned to a high pressure oil pool. Is there some similar fix that can be applied for the APS to help minimize oil return backpressure?
09-03-2007, 08:19 PM
#25
^ i was thinking the same thing when reading a recent thread on JWT. I did check the oil level again today, if any its about 1/16th over the L hatch marks. By no means is my car smoking badly, just on WOT at the beginning then at constant WOT it doesn't smoke, its like right when you smash the pedal to the floor.
09-04-2007, 10:27 AM
#28
Originally Posted by Abishop
^ i did. From what another z member has told me its coming from both sides of my true dual exhaust.
the issues I have seen are not at WOT, but at decel as you come off throttle. I would still say it is just unburnt fuel
09-04-2007, 01:19 PM
#29
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Originally Posted by Zivman
Take your car to a shop and run it on the dyno. have a look for yourself what is coming out the exhaust before you decide to rip into the car and rebuilding/replacing turbos.
the issues I have seen are not at WOT, but at decel as you come off throttle. I would still say it is just unburnt fuel
the issues I have seen are not at WOT, but at decel as you come off throttle. I would still say it is just unburnt fuel
09-04-2007, 02:07 PM
#30
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I have the same exact problem with my JWT TT setup, smoke under decel. I have tried many different things including tapping the upper oil pan above the oil level and I still have a small amount of smoke. I have switched to a thicker oil, (20W50) and the smoke level has decreased but it is still there when the car is really hot. If I figure anything out with my setup I will update this thread.
09-04-2007, 03:56 PM
#32
Originally Posted by tabbott
I have the same exact problem with my JWT TT setup, smoke under decel. I have tried many different things including tapping the upper oil pan above the oil level and I still have a small amount of smoke. I have switched to a thicker oil, (20W50) and the smoke level has decreased but it is still there when the car is really hot. If I figure anything out with my setup I will update this thread.
05-29-2008, 11:11 PM
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Im starting to have the same issue out of nowhere. Mine (Greddy TT) smokes at WOT a lil then a lil more when u let off the pedal. It seems fine at idle and drives normal. Its scaring me a little cause i dont want the motor poppin on me. What solutions did u guys have.?
Also how could it be unburnt fuel as another person stated (school me)? I will say that all this happened after a full tank refill and i did smell gas after the fill up...
Also how could it be unburnt fuel as another person stated (school me)? I will say that all this happened after a full tank refill and i did smell gas after the fill up...
Last edited by IslandZavage; 05-29-2008 at 11:14 PM.
05-30-2008, 07:33 AM
#37
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Originally Posted by wannabuy350z
is it happening at the end of the WOT? if so its fine. if not your bearings are gone.
Idle - No Smoke
Drove around - No Smoke
WOT hold at 6500 RPM - No Smoke
WOT Rev to 6500 RPM and release - Light Smoke
Quick Revs to 6500 RPM's and release and re-rev back to 6500 RPM- Light Smoke
05-31-2008, 12:35 AM
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But it never use to do that at all... - want it back to how it was. I been boosted for about 12k miles or so and this starts up now. I change my oil religiously at around 1800 to 2000 miles. How can I resolve this? Bothers me so much I started pricing and researching a built block cause I'm getting blown motor paranoia..lol.lol