North American Turbocoupe Organization



waist gate orfice size
matthew Offline
Junior Member
#1
Does any one know what the size of the hole in the orfice that comes out of the intercooler and goes to the waistgate? I want the size of one on a manual trans not a auto or does anyone have one for a manual? this is on 88 turbo coupe.
1988 tbird turbo coupe all stock
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turbospoolin23 Offline
Senior Member
#2
The small threaded hole on the intercooler? 1/8npt?
87 TC 5 spd... 17X9 Cobra R's, .60/.63 SVO T3 Turbo, Large NPR, Manual Boost Controller, AEM Wideband, BPV, K&N Cone, Walbro 255, Kirban AFPR, 3G Alternator Conversion, Short Throw Shifter, Stinger 3" Exhaust, Magnaflow Catalytic Converter & Muffler.
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matthew Offline
Junior Member
#3
I meant the inside of the orfice
1988 tbird turbo coupe all stock
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turbospoolin23 Offline
Senior Member
#4
Are you asking about one of these? I think the top one was in the intercooler and the bottom one was in the turbo. These are off a 5spd car. http://s271.photobucket.com/albums/jj140...G_0267.jpg
87 TC 5 spd... 17X9 Cobra R's, .60/.63 SVO T3 Turbo, Large NPR, Manual Boost Controller, AEM Wideband, BPV, K&N Cone, Walbro 255, Kirban AFPR, 3G Alternator Conversion, Short Throw Shifter, Stinger 3" Exhaust, Magnaflow Catalytic Converter & Muffler.
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matthew Offline
Junior Member
#5
Yes that is what I am looking for . I need to know the inside diameter of the hole
1988 tbird turbo coupe all stock
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Jeff K Offline
Administrator
#6
Why? First, neither end of that T goes to the WGA. One goes to the cruise control servo via a one way check valve, and the other end dumps pressure to the turbo inlet. That thing is an asparator that generates vacuum for the cruise control under boost conditions.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
11 Crown Vic Interceptor
14 Toyota Camry (wifes car)
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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matthew Offline
Junior Member
#7
Ok then that is not the right part. From what I have read the T that goes to the waistgate actuator and the bcs on a manual trans has a smaller orifice size than one from a auto car. I just want to see if they are. Mine is a auto so I can compare it to mine
1988 tbird turbo coupe all stock
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natmac3 Offline
Administrator
#8
Oh, that's the one that's on the compressor outlet, it has 2 barbs 90* to each other. One end goes to the wastegate, the other goes thru the stock bcs to the compressor inlet.

Don't have one here, but I'll check my "stash" later.
1987tc
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matthew Offline
Junior Member
#9
Yea that is it? Thanks
1988 tbird turbo coupe all stock
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turbospoolin23 Offline
Senior Member
#10
Nat are you talking about the bottom one in my picture? I'm pretty sure that was the one on the cold side outlet.
87 TC 5 spd... 17X9 Cobra R's, .60/.63 SVO T3 Turbo, Large NPR, Manual Boost Controller, AEM Wideband, BPV, K&N Cone, Walbro 255, Kirban AFPR, 3G Alternator Conversion, Short Throw Shifter, Stinger 3" Exhaust, Magnaflow Catalytic Converter & Muffler.
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