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Old 03-01-2013, 11:08 AM   #1
z1haze
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Default smoke after new build..

Ok, I feel like I might have an issue, just not sure what it is. Just got my car back, its fully built, top to bottom, and ive put about 600 miles on the car so far. I dont think this has been happening the entire time, or I would have noticed it by now, but my car is beginning to have excessive exhaust, even at fully operating temp.

When the car starts, theres no smoke for probably about 15 seconds, and then it starts coming out thin, then gradually gets thicker an thicker.

The color is in between is a greyish.. it honestly looks like any other car exhaust, only much thicker. It doesnt smell like oil, it doesnt smell like coolant, its smells like exhaust, I'd say more fuel than anything.

The car is not yet tuned, I have a basemap on it, but my wideband is reading 14.7-15.5 all the time at idle, so I dont think its going rich.. what could it me?

I know all of the emissions accessories have been removed like the airpump, etc, but I'm not sure if thats relevant to the amount of exhaust
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Old 03-01-2013, 11:44 AM   #2
dstroy
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Did you recently install any brand new exhaust parts
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Old 03-01-2013, 11:49 AM   #3
Mr Wrex
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Might help if you listed any relevant power mods.
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Old 03-01-2013, 11:58 AM   #4
z1haze
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Default mods

invidia, equal length header, which is new yes. also has the invidia catback exhaust, ams downpipe and uppipe. the cat back is old though. but now has over 600 miles on so id assume its done whatever its going do by now. i dont know of any other power mods that would be relevant to the car smoking at idle, its got a fuel aeromotive kit and 1000cc injectors, basemap is scaled for that.
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Old 03-01-2013, 12:14 PM   #5
HinshawWRX
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Define "fully built?"

Without you filling our your profile it's hard to rule out cold temperatures. Without knowing what this build was it's hard to rule out blow by from forged pistons.

Why not take it back to the people that built it?
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Old 03-01-2013, 12:35 PM   #6
nhat
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Quote:
Originally Posted by HinshawWRX View Post
Define "fully built?"

Without you filling our your profile it's hard to rule out cold temperatures. Without knowing what this build was it's hard to rule out blow by from forged pistons.

Why not take it back to the people that built it?
Someone is using their brain this morning.
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Old 03-01-2013, 12:42 PM   #7
z1haze
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I just wanted to get an outside opinion. 100mm forged pistons, and rods, sleeved block, stock crank, ported heads, 1mm oversize valves, 272 cams
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Old 03-01-2013, 01:31 PM   #8
kellygnsd
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Fill out your profile. Things that would be good to know is the temp you are starting your car in and noticing this. Cold temps and condensation make for a thicker more opaque exhaust smoke.
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Old 03-01-2013, 11:15 PM   #9
dstroy
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IF your header is BRAND new, it might have been full of cosmoline, which is relatively odorless, and smokes for 5-6 hours after installing a new part.
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Old 03-03-2013, 02:53 AM   #10
jesseber
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I'm at 200 miles on my new build and am experiencing a similar smoking issue since about 80 miles. Subscribed.
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Old 03-03-2013, 05:31 AM   #11
DerickRyoung
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List of options I've learned to narrow down related issues...
-unscrew oil fill cap and see if it smokes in idle & check its sucking air in (like it should be) and not pushing out puffs of smoke
-check if there is oil coming out of bov/bpv
-check oil feed line on turbo
-do an oil change and observe oil quality (milkshake, glitter/bearing, etc.)
-check or install an oil catch can
-change/check spark plugs
-unbolt downpipe to check if there is excessive oil/carbon build up in exhaust housing
-unbolt header to check for oil in exhaust ports for valve seal/guide problem
-compression test and leak down

* I am not a trained mechanic but correct me if I am wrong *
I know OP should probably just go to original shop who did the work, but I figured I'd chime in since I've been there before.
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Old 03-03-2013, 11:37 PM   #12
z1haze
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i think ive just chalked it up to be its winter, its now catless, equallength headers, absolutely nothing restricting the exhaust, limiting the amount of heat built up.. so i think its just a lot of condensation
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Old 03-04-2013, 09:22 AM   #13
dstroy
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Mine is catless too, I get smoke on cool humid mornings.
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Old 03-04-2013, 09:54 AM   #14
z1haze
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I think I spoke too soon.. More smoke than usual today so I popped off the oil cap and saw a white thicker substance in the fill tube :-/
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Old 03-04-2013, 10:02 AM   #15
z1haze
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I need advice tho... The shop that has built my car... I've sent my car back like 5 times now for issues.. One time it went back for over two weeks and the whole motor had to come back out.. What am I supposed to do in this situation
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Old 03-04-2013, 01:39 PM   #16
z1haze
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Ok, so I took the car in to get checked today, and the final result is everything is fine. In fact, it was about 10 degrees warmer today than it has been, and it didnt hardly smoke at all when I got there (of course it happens like that)... They couldnt find anything wrong with what could be causing excessive smoke so I just accepted it.
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Old 03-04-2013, 03:41 PM   #17
fastblueufo
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Got a vid?
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Old 03-04-2013, 06:50 PM   #18
DerickRyoung
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Quote:
Originally Posted by z1haze View Post
I think I spoke too soon.. More smoke than usual today so I popped off the oil cap and saw a white thicker substance in the fill tube :-/
A white thicker substance? Check your oil dipstick is it like a milkshake? I would have a second shop look it over for a second opinion. Take pics of white substance in oil fill tube and video of smoke.
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Old 03-05-2013, 01:44 AM   #19
stu
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What oil are you using? and what are the temps where you live?
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Old 03-05-2013, 11:01 AM   #20
z1haze
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Default

I'll take a vid later today if I get time.. There was a white substance but they said it was normal this time of year. I don't think they'd try to cover up something major like that.. It's cold here though. Been an average of probably 30 lately. And I think they used rotella oil
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Old 03-05-2013, 11:01 AM   #21
z1haze
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Sry I don't know the viscosity
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Old 03-31-2013, 03:07 AM   #22
Coop1103
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Im having similar issues as well....white smoke out exhaust...built lower block with 100mm Manley Pistons and Eagle Rods. Im on Rotella Conventional Oil. 15w40 I believe. Going to monitor this weekend...if not gone by Monday/Tuesday going to opt for compression test. I have let my mechanic know of the issue already so will keep posted if it is something that can help you in this thread.
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Old 03-31-2013, 12:54 PM   #23
Boostedbob
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My built motor does this as well, I honestly think it is just the cooler temperatures, it reached 68 yesterday when I did a cold start no smoke or anything.

I think it is the nature of the beast.
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Old 03-31-2013, 02:03 PM   #24
2011boostdwrx
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Mine too, catless does not catch any moisture. Once warmed mine smokes very little but there nonetheless. I was worried as well, but my builder builds the motor on the loose side.
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Old 03-31-2013, 03:29 PM   #25
Coop1103
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Mine I do not believe its a prob with exterior temp
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