What to do about the air tube with my BBK LT h-pipe

Jason Van Holland · 01-16-2001, 03:17 PM

I just removed my OEM headers and h-pipe on my '92 LX. Looking at the picture of BBK's longtube h-pipe, I do not see where to plug in the air tube that runs to the thermactor pump. Do I use the tube? Do I plug the tube? If so, with what? I'm in a state that does not test for emissions. Thanks.

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92conv, T5, HPMsubs, 4pt gload, strut tower brace, 3.55's, 3 chamber Flowmasters, Baer SS brake lines

[This message has been edited by Jason Van Holland (edited 01-16-2001).]

Rick 91GT · 01-16-2001, 04:05 PM

I live in a state where emissons is not required and I just plugged my tube in my MAC long tube Off-Road pipe. I used a bolt and a hose clamp, but this winter while it's apart I am welding a cap on the end. I did pass MD emissions with it plugged on a modified stock h-pipe that only had 2 cats, I made it fit my long tubes for emissions.

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My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98

NO SLO PK · 01-16-2001, 05:09 PM

I'm 90% certain you don't use the tube with the BBK LT H pipe. I know for a fact you don't with the MACs.

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'91 LX
Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles.

NoSlow5.0 · 01-17-2001, 12:31 PM

Will pluging the y pipe from the pump hurt anything if you don't disconnect it and remove the smog eq? I am getting an off road pipe w/ long tubes and don't want to pull out all of the smog eq if i don't have to. I DO have to have emissions on my stang. Light Em Up!!!

[This message has been edited by NoSlow5.0 (edited 01-17-2001).]

Project AOD · 01-17-2001, 04:35 PM

I used a wheel stud,fit good ,just tap it in Mick.

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01-16-2001, 03:17 PM	#1
Jason Van Holland Registered Member Join Date: Apr 1999 Location: Nebraska Posts: 12	What to do about the air tube with my BBK LT h-pipe I just removed my OEM headers and h-pipe on my '92 LX. Looking at the picture of BBK's longtube h-pipe, I do not see where to plug in the air tube that runs to the thermactor pump. Do I use the tube? Do I plug the tube? If so, with what? I'm in a state that does not test for emissions. Thanks. ------------------ 92conv, T5, HPMsubs, 4pt gload, strut tower brace, 3.55's, 3 chamber Flowmasters, Baer SS brake lines [This message has been edited by Jason Van Holland (edited 01-16-2001).]

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01-16-2001, 04:05 PM	#2
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	I live in a state where emissons is not required and I just plugged my tube in my MAC long tube Off-Road pipe. I used a bolt and a hose clamp, but this winter while it's apart I am welding a cap on the end. I did pass MD emissions with it plugged on a modified stock h-pipe that only had 2 cats, I made it fit my long tubes for emissions. ------------------ My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98

01-16-2001, 05:09 PM	#3
NO SLO PK Registered Member Join Date: Mar 1999 Location: Arcadia, CA, USA Posts: 731	I'm 90% certain you don't use the tube with the BBK LT H pipe. I know for a fact you don't with the MACs. ------------------ '91 LX Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles.

01-17-2001, 12:31 PM	#4
NoSlow5.0 YOU HAVE NO MARBLES!!!!!! Join Date: Aug 2000 Location: Jonesboro,Georgia,USA (Providence, Ri) Posts: 868	Will pluging the y pipe from the pump hurt anything if you don't disconnect it and remove the smog eq? I am getting an off road pipe w/ long tubes and don't want to pull out all of the smog eq if i don't have to. I DO have to have emissions on my stang. Light Em Up!!! [This message has been edited by NoSlow5.0 (edited 01-17-2001).]

01-17-2001, 04:35 PM	#5
Project AOD Registered Member Join Date: Jan 2001 Location: Monaca,Pa. Posts: 10	I used a wheel stud,fit good ,just tap it in Mick. ------------------