Forced Induction Superchargers | Turbochargers | Intercoolers

alot of smoke

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Old 09-03-2006, 12:15 AM
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Default alot of smoke

Finally got everything hooked up and got the car under boost--never got over 3 lbs of boost--and at about 5 sec under boost the car starts to smoke and when i finally completely let out of the gas, it smokes very badly. After a couple sec at cruising speed, smoke goes away and doesn't smoke at idle.

before i actually got it drivable i had too much oil pressure and it was pushing oil past the seals. i put an oil restrictor in the oil feed line and that cleared up the oil problem.

what do you think?? is this an oil return prob?? or have i blown the seals out of the turbo??

i must say that--with about 3lbs of boost and half throttle--the car has thoroughly impressed me.....
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Old 09-03-2006, 09:25 AM
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just to let everyone know what I have.

383 10:7.1 (I know it is high but I will be building a 8.5 or 9:0.1 forged lower end later)
gt42-76
2-38mm tail WG with .5 bar spring
50mm tial bov
the drain is -10, drops 3" and goes back 6"
I put a .060 n20 jet in my supply line to stop a over oiling problem.


could this be a blow by problem, as I still have the factory evap setup
or do you think it is a drain problem?
Old 09-03-2006, 09:47 AM
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pull your IC pipes, and your cross over pipes...see if theres oil in them...pull your DP too. I was chasing an oil problem for a while and finally pulled my turbo apart and found a broken seal.
Old 09-03-2006, 01:11 PM
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the dp is only 1.5' long, so I know that is were the oil is getting,but I didnot think about the IC pipes. I will check that....
Old 09-03-2006, 02:46 PM
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sounds weird, but on my rx7 the same thing was happening when my pcv valve went bad, but the rx7 is a different monster...
Old 09-03-2006, 04:37 PM
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I will look into that 2, thanks



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