Got a bit of a problem and am trying to get it sorted out. The car smokes a lot when coming off deceleration. I thought it was faulty turbo seals as there seemed to be an unruly amount of oil in the ic piping...so I purchased a new Aspec GT3574 to remedy the problem. Got the turbo on this morning and got all the fittings on it, but the RX still smokes a lot on decel. The car hasn't been boosted above 5k rpms (and only about 5psi), and has only been babied since rebuild.

Some other info:
The engine has less than 3000 miles on it (with new plugs). Probably closer to 1500.
Smokes even turbo is uncoupled from ic piping and is venting to open atmosphere.
1300cc injectors
Midpipe, downpipe, stock exhaust
PFC

No smoke at idle.

Any ideas?

 

Check to make sure the PCV valve isn't in backwards... Taking it off, capping the UIM and running catch can for the filler neck solved my problems. Single turbo's have this problem often.

 

yeah i read your postings that you had with a similar issue. I'll take a look at it tomorrow in the light. I appreciate your help, mono4lamar.


anyone else?

 

Maybe too much oil pressure for the turbo. Check to make sure you have a oil restrictor pill for the turbo oil inlet.

 

there's no restrictor pill in it. Aspec guys seemed to think it didn't need it. It's just straight -4an...or whatever the sizing is.