Ok so heres the whole story guys.

4 months ago I purchased my 2003 nissan 350z for $20k from a local dealership. I thought this was a steal, it had 40k miles on it. Before buying It I knew I was going to replace the motor with a built one b/c of the mileage and my HP goals. However, some issues arose I believe.

MODS:
Headers
Test pipes
y-pipe
UD pullies
Grounding KIT
Cams
K&N typhoon.
Denso plugs
Mobil 1 oil
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During this set up I ran 125 shot of nitrous just fine all day long... however when I installed the cams....I took it to the track after 3 days... First time I sprayed the nitrous on the track , I got to the 120ft line then the car made some noises, maybe detonation dunno. tried it on the highway oin the way home for 1 sec each time same result, car felt slower during the activation and sounded like a knock, i was running 110 octane at the time, maybe to high? Also I was never able to check, but I believe I blew 2 spark plugs because i blew one before on the nitrous and felt a diff, and it felt the same after the car shut down. Anywho, the car was never tuned for any of the mods, so since I couldnt get the nitrous to work with my cams I sold the kit.


Another thing to mention , since the nitrous install, ( 1 month after purchase of car) I noticed my mobil 1 oil drains like a ****, like 1 qt a week it seems! Then I get some smoke coming out some mornings when I turn car on... then it will come out once after the start up during a WOT.... this happened before the cams where put in. I believe it happened around the oil change or when the Exhaust was installed...

Since then.. I've bought a vortech supercharger, installed a kinetix manifold. My cars been to a shop since i sold the nitrous kit because of a small accident... My concern is what could be causing this smoke? white puf or cloud of smoke..

Is it any of these issues? from what peeps have said.

1) Mobil 1 oil
2)Spark plug(s) melted
3) Test pipes bad
4) o2 sensors
5) No tune for cams or mods
6)Valve gasket
7) bent rod
8) head damage
9) PCV valve
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From driving the car..... There are no issues while Daily driving at all... just "sometimes" at start up I see smoke, after a while it clears up.
I can floor it all day long and high rev around corners and mess around, runs fine. just concerned, because the supercharger is going to be installed and the techs wanted to let me know it might be an issue if its serious and the supercharger will shorten life..

What " could " I have the shop do to help do some maintence on the car to clean some things up??

They are going to change oil to royal purple
put in one step colder NGKS.
Change PCV valve, dyno tune the car.

Please leave some sort of feedback. Thanks!

 

Pull your plugs and read this...

http://www.nightrider.com/biketech/spkplghnbook.htm