white smoke under wide open throttle....... any ideas?

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luv2spedup
Posts: 615
Joined: Mon Jan 10, 2005 11:06 pm
Car: 89 silvia

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like the topic says, i see a lot of white smoke during full boost but when i am crusin around it's normal no visible sign of smoke. the problem is i jst recently upgraded my head gaskit, arp head studs, springs retainers rocker arm stoppers, sp 60-1 turbo, 880cc injectors and stuff like that (every thing is new out of the box) and i only boosted the car roughly about 10 times after the up grades any ideas what might be the problem and yes the AFR's r good and there is no sign of coolent in the oil (checked the dip stick, don't even smell coolant in the exhaust), but i am still runnig the stock KA radiator and clutch fan can some one please tell me what might be the problem


2forty
Posts: 156
Joined: Sat Jan 24, 2004 10:50 am

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hmm ya got me. white smoke is usually a sign of coolant, but u say u dont smell anything. i would say turbo seals but dont think ur turbo is watercooled. iono did ur hg possibly not seal properly?

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luv2spedup
Posts: 615
Joined: Mon Jan 10, 2005 11:06 pm
Car: 89 silvia

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that's the only thing i could think off, but if it was the HG should'nt it smoke all the time, BTW ur car looks sweet

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luv2spedup
Posts: 615
Joined: Mon Jan 10, 2005 11:06 pm
Car: 89 silvia

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come on guys any suggestions at all ..... any one

574-240sx
Posts: 9432
Joined: Sun Dec 01, 2002 6:27 pm
Car: Nissans, Toyotas, Subaru

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What did you torque the head gasket down too. Also how is your tune. Also with it being cold as hell out I seem to see some smoke out the back too at WOT.

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luv2spedup
Posts: 615
Joined: Mon Jan 10, 2005 11:06 pm
Car: 89 silvia

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i think i torqued it to 75 with the lube that came with the arp studs, and the instructions said 70, as far as the tunning goes the car runs kind off rich under WOT the afr's are usually any where from 10.9 to 11.5

574-240sx
Posts: 9432
Joined: Sun Dec 01, 2002 6:27 pm
Car: Nissans, Toyotas, Subaru

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Sounds right. Some people say 80 ft/lbs with the arp studs. http://forums.freshalloy.com/u...50350 Enthalpy says"after 1000 miles:

pull cams and check TQ on all head studs. dont loosen them... just re-click them to 75 (i use 80 )"

I would say possibly you are running a tad rich being that its cold out. Air fuels sounds pretty decent. Was the turbo new or used and did it sit around a while after it was used.

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luv2spedup
Posts: 615
Joined: Mon Jan 10, 2005 11:06 pm
Car: 89 silvia

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turbo is new it sat around for a couple of months after installitation(during this time the car never saw boost, heck i hardly drove the car) till i installed my fuel system, thanx for ur replys dude

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da40
Posts: 900
Joined: Thu Mar 02, 2006 12:07 pm
Car: 1995 SE 240sx

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i dont know man usually black smoke says your runnin rich ,might check your tuneing on the car what are you useing to tune?

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luv2spedup
Posts: 615
Joined: Mon Jan 10, 2005 11:06 pm
Car: 89 silvia

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a map ecu (from power house racing) it works wonders with supra's and allows u to get rid of ur maf


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