White smoke ONLY after boost??
10-29-07, 02:24 PM
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White smoke ONLY after boost??
Hey guys. My car starts up fine, doesnt even smoke at start up. It only puffs a small cloud of white smoke after boost. But if I am just cruising around, nothing. And this only happens at first start up. If I let the car warmup for a good 10 min, it wont puff out smoke after boosting it, actually it SOMETIMES does. But if I crank my car up, let it sit there for a min or two and drive off, it shoots smoke out after boost. Any ideas???
10-29-07, 02:33 PM
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Well, I do have an oil leak from my oil filter o rings (oil filter mounting gasket) and I can see it drip down my block. Could that have anything to do with it?
10-29-07, 02:38 PM
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And I do try to wait until my car is warmed up to boost. Which reminds me. Is it possible to blow your... I believe its called the front main seal, doing that? Well, looking at this pic i have attached. You see the the first big 'silver' piece followed by a 'black' piece that bolt up together. I wish I knew the names. Well, right after the black piece, seems to be leaking, right under the oil cap.
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10-29-07, 03:15 PM
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Thats what it seems to be. When I first got my car. It had an oil pan gasket leak. So I fixed it. And now that I have that oil filter o rings busted, the oil drips down the block and around the oil pan. So I think it might be getting on the exhaust that way. But why would it only smoke after boost?
10-29-07, 03:23 PM
#12
ok, if the oil were blue or black then I'd agree with 87 T-86.
I want to say you're overboosting to the point that the housings are expanding and you're nicking the coolant seals and a lil bit of coolant is entering the chambers which only happens when you boost.
What boost gauge are you using? Have you noticed any boost spikes? What boost are you running? Stock turbo?
I want to say you're overboosting to the point that the housings are expanding and you're nicking the coolant seals and a lil bit of coolant is entering the chambers which only happens when you boost.
What boost gauge are you using? Have you noticed any boost spikes? What boost are you running? Stock turbo?
10-29-07, 03:30 PM
#13
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Try temporarily open venting your crankcase and see if it eliminates the problem in boost. The purge system may be clogged.
It's somewhat normal to get a small puff of smoke when the car starts up.
It's somewhat normal to get a small puff of smoke when the car starts up.
10-29-07, 03:35 PM
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phoenix7, I have a 60 trim turbo, 60 mm wastegate, Xs Power manifold (that people want me to change, LOL!) MBC, boost gauge, a/f gauge, 650 injectors, 3" turbo back. And thats about it. Ordering a FMIC kit, this weekend, following by a different manifold. Changing my oil filter mounting o-rings. Running 10-15 lbs.
10-29-07, 03:43 PM
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Well, no. I havent had any spikes. But after warmup and I boost, well I obviously have some turbo lag. But around 3.5k it seems to be clogged, which sounds like Aaron is on the right track, LOL! The rpms slowly rise, and around 3.5k it slows down for a sec, then it picks up, then the turbo kicks in, then i fly. LOL!
By boost spike, you mean boost creep?
By boost spike, you mean boost creep?
10-29-07, 04:03 PM
#17
yup, different terms for the same issue. I know it's going to be hard to monitor the boost gauge for long periods of time when you're boosting/speeding/driving but you must have some way to tell if at any point during boost you're spiking enough to damage the engine/seals.
10-29-07, 04:10 PM
#19
Sounds like a good idea to me. keep an eye out on your coolant level and any and all white smoke in the upcoming weeks/months.
Try venting your crankcase to see if it DOES fix it and take it from there.
Try venting your crankcase to see if it DOES fix it and take it from there.
10-29-07, 06:26 PM
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Yes, that's what I'm saying. You may get some oil vapour into the engine bay but it should not be horrid. Mainly you are removing any pressure buildup from the "crankcase".