Hey Tom, you may have something
#1
Member
Thread Starter
Join Date: Nov 2000
Location: Southwest Ohio
Posts: 398
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 Firebird, 2000 WS6
Engine: 2.8, LS1
Transmission: 700R4, T-56
Axle/Gears: Stock, Stock
Hey Tom, you may have something
I finally got under my car and did a good look. Tires aren't rubbing, tried to wiggle the gas tank, wouldn't move. Then I noticed the exhaust. It is lying on (what I guess is) the track bar brace. That is the brace under the intermediate pipe and over some other brace, right? I still haven't checked the transmission mounts yet, so it may be a combination. Could this be what is causing the noise?
BTW, what size i-pipe do I have?
------------------
My only mod: Flowmaster 40 series
BTW, what size i-pipe do I have?
------------------
My only mod: Flowmaster 40 series
#2
Supreme Member
Join Date: Mar 2000
Location: Central NJ, USA
Posts: 13,414
Likes: 0
Received 6 Likes
on
6 Posts
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Cool! Yeah that's the track bar brace; below it is the track bar. There should be a hanger off the passenger-side tailpipe that anchors the system "up" to the rearmost frame rail. Of course I'm assuming you have a dual exhaust... I'm not sure how the singles ran.
I think stock pipes were 2 inches diameter. It's been a while since stock
------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
I think stock pipes were 2 inches diameter. It's been a while since stock
------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
#3
Member
Thread Starter
Join Date: Nov 2000
Location: Southwest Ohio
Posts: 398
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 Firebird, 2000 WS6
Engine: 2.8, LS1
Transmission: 700R4, T-56
Axle/Gears: Stock, Stock
I have a single inlet and 2 outlet setup. what do i need to do to upgrade to a 3" exhaust besides maybe expand the rear of the converter?
------------------
My only mod: Flowmaster 40 series
------------------
My only mod: Flowmaster 40 series
#4
Supreme Member
Join Date: Mar 2000
Location: Central NJ, USA
Posts: 13,414
Likes: 0
Received 6 Likes
on
6 Posts
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Technically if it's a bolt on, you wouldn't have to extend the convertor's butt. There should be a flange between the I-pipe & cat, unless you've got a custom job there.
A 3 inch cat-back system from Dynomax or Flowmaster should cover it; that gives you the I-pipe, tailpipes, & muffler. I don't think a 2.8 needs 3" exhaust tho, the Dynomax #17493 (Super Turbo Catback) comes with 2.5" pipes all around- and it's a v8 exhaust (5.0 non-high-output). It's the same one listed for our 2.8/3.1's.
------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
A 3 inch cat-back system from Dynomax or Flowmaster should cover it; that gives you the I-pipe, tailpipes, & muffler. I don't think a 2.8 needs 3" exhaust tho, the Dynomax #17493 (Super Turbo Catback) comes with 2.5" pipes all around- and it's a v8 exhaust (5.0 non-high-output). It's the same one listed for our 2.8/3.1's.
------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
Thread
Thread Starter
Forum
Replies
Last Post