Ok here it goes... I've posted before only to get the needle valve replies.. but quite frankly I'm not sure thats it...

Since I put my turbo on my del Sol, I get pure white smoke for like 5 minutes of driving. This didnt initially happen in the warmer months of the completed set up, but by the time that October roled around with cold temps I've seen my car smoke for only 5 minutes or less each time I start it up from being cold. Now, many think its oil pressure being too high, well today something interesting happened. I had let my car idle for like 10 minutes cause I had to wait for a friend. When I don't gas the car and drive it, meaning when I idle, it doesnt smoke. The smoke only occurs when I'm driving. So by the end of 10 minutes, my oil pressure was down considerably. I take it out to drive, and with lower oil pressures, looming around 30-50psi, I still smoked like a biatch. All the while with PURE WHITE SMOKE.

Of course, 5 minutes later, no longer does it smoke. I've been keeping an eye on my levels since I got the turbo up and running. The coolant has only dropped like 2 cm on the resevoir tank (clear plastic) and my oil has only dropped maybe 1 cm since I last changed it (at the time of the project, maybe 700 miles ago.)

Anyone have any ------- clue whats going on? Sorry for the long post but thats the best way to diagnose this problem... Let me know.

Things to know:
Oil pressure at start of cold car: 75 psi
Oil pressure at warm car: 20-40psi

Car is fairly old, has 116k on the D16z6.

 

hey try this
go to walmart or wherever you get your oil

buy mobil1 15w-50 oil. My turbo smoked some and then i went to this- no problems since. It works mint. Go with it!

 

Yep, for those 5 minutes THAT IT DOES SMOKE:

The more boost, the more smoke... But still... all I have to do is put a load on the car and give it some gas, and it will initiate the smoking process... From here, even at a COMPLETE STOP AND IDLE, smoke still looms..

But keep in mind, more boost, more power, more smoke UNTIL it decides to quit and the engine starts to get warmer.

 

:nod:

 

Why does it eventually stop tho, and it seemed to not do this when its warmer out... Two days ago it was fairly warm out for some reason, barely smoked on me... then yesterday and today, its fairly cold here in Pennsylvania, and it smokes like a -----.

 

Johnnyquest give me more info about this oil. Is it perfectly safe to use in my car? I'll have to try it, nothing else to lose.

 

I don't see why it wouldn't be. It said mobil 1 on the front and "excellent for turbo/supercharged vehicles" on the back so thats why I went with it.

The reason it smokes when it's cold is b/c when your engine is cold the tolerances are loose (metal expands as it heats up) so as the ****** warms up everything tightens up and there is less room for the oil to squeeze by (less smoke). That's also why it smokes more on colder days cuz the motor is really cold - therefore really loose tolerances. Run the 15-50. Tons of people are using it, my and my friend with both turbo d's, and there was just a thread on HT about it and about 15 people also use it. It's great stuff.

 

I think it has a lot to do with the temperature of your exhaust pipe. If your exhaust is hot, the steam created by blown headgasket is kept to a fine vapor. If it is way cooler at the tailpipe end you will see the water condense more. Another thing is are you sure it is smoke? Every car steams (especially when the pipe is cold) Because hydrocarbons reacting with oxygen make water.