smoke under high boost

[97redgsx]

ok i have recently rebuilt my motor and i am seeing alot of smoke under hard aceleration. it is usually anywhere from whiteish grey to almost black. today on the highway in third i did a long hard pull and it smoked ALOT. it boosted fine and pulled great but smoked like a bastard.... so much so that i got smoke inside the car(i was going between 50 and 70 mpH)


now i have a fairly new 20g turbo, cometic HG, all new valve seals, and i JUST did a compression test and 180 across the board..... i am lost as to what can be happening....


if it helps at all, it seems to get less and less as i boost again and again, and seems MUCH worse if i havent really got on it in a while...

maybe build up in IC pipes???? but from where?? PLEASE help..

 

[marcmsj]

Running rich maybe? what are you tuning with?

 

[97redgsx]

no tuning yet, i ran out of money

 

[jawar666]

Did you try doing a boost leak test first?... It might be a leak somewhere the responsible for making you running rich...

I would do that as the first thing to check...

 

[sheldon]

no tuning yet, i ran out of money

that could very well be your problem...do you have bigger injectors? fuel pump? how much boost? give some more info

 

[robbo185]

black smoke = fuel

id say that
1)no tuning = bad ...
2) you may have a boost leak and you are letting metered air escape while boosting. How does the car perform. Is it sluggish at all?

 

[boostenon114]

I would keep the boost low till you get it tuned! Another rebuilt motor will cost more then just getting it tuned.

 

[97redgsx]

my dipstick was popping out and spraying oil all over my manifold

 

[silver bullit]

Check the shaft play on the turbo.

Excessive blow by is caused by a good amount of things search for dip stick pops out.

Common fix for this is to crimp the dip tube to hol the dipstick in.

 

[laserspeeddemon]

my dipstick was popping out and spraying oil all over my manifold

That happens, replace dipstick and PCV Valve. Should cure the problem.