TwinTurbo.NET: Nissan 300ZX forum - Lots of smoke on over run
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Subject Lots of smoke on over run
     
Posted by Lowfategg on September 27, 2012 at 11:13 PM
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Message So, the adventure continues (to my great dismay).

Rebuilt the motor around 1000 miles ago, had injector issues which caused massive rich running conditions. I was getting some smoke before but I figured with was caused by the injectors dumping to much fuel in or condensation.

I recently changed the injectors to a better set and the car now runs correctly. Since then the smoke just seems to have gotten way worse. At the 1k miles mark I also switched to Rotella T6 (break-in was done on 10W-30 conventional).

It does not smoke on initial start up or idle, but once you drive around a while and getting the car up to temp it acts like this. It seems to only smoke once you release the pedal quickly (over run) and I have not noticed it at all under throttle or boost.

Smoke looks white to me but there might be the faintest hint of blue (might just be in my mind, its that hard to tell).

White smoke would mean coolant, but I have not added a drop to the reservoir and it looks to be at the same level since I filled it 1000 miles ago.

Smoke does not smell sweet to me, getting up close to smell it burns my eyes. Just smell foul (not in the unburnt fuel way I had with old injectors).

Here is a video:

[ http://www.youtube.com/watch?v=0YGbAHVunXM ]

     
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