Post pics of the underside of your car and exhaust
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deadbird - Few questions for ya 
1. Did you need a special crossmember for that setup?
2. That passenger pipe clearance looks REAL tight by the panhard bar brace - how does the suspension travel affect it?
3. How long are those mufflers?
Also, did you fab up that yourself, or have a shop do it? I want to try this myself after seeing this and Willie's setup. What kind of bends did you use?

1. Did you need a special crossmember for that setup?
2. That passenger pipe clearance looks REAL tight by the panhard bar brace - how does the suspension travel affect it?
3. How long are those mufflers?
Also, did you fab up that yourself, or have a shop do it? I want to try this myself after seeing this and Willie's setup. What kind of bends did you use?
TGO Supporter
Joined: Sep 2000
Posts: 6,775
Likes: 27
From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Originally posted by Marc 85Z28
deadbird - Few questions for ya
1. Did you need a special crossmember for that setup?
2. That passenger pipe clearance looks REAL tight by the panhard bar brace - how does the suspension travel affect it?
3. How long are those mufflers?
Also, did you fab up that yourself, or have a shop do it? I want to try this myself after seeing this and Willie's setup. What kind of bends did you use?
deadbird - Few questions for ya

1. Did you need a special crossmember for that setup?
2. That passenger pipe clearance looks REAL tight by the panhard bar brace - how does the suspension travel affect it?
3. How long are those mufflers?
Also, did you fab up that yourself, or have a shop do it? I want to try this myself after seeing this and Willie's setup. What kind of bends did you use?
Marc.. A few answers for ya

1. Honestly, I didn't need a special x-member but, I chose to modify mine to assure I'd have at least or better ground clearance than aftermarket 3" header/y-pipe/exhaust combos. I based front/mid ground clearance off the Edelbrock TES/y-pipe setup I had on the car prior to the Hooker/dual change.
Here's what I did to my x-member to assure max ground clearance...
http://www.deadbird.org/anews/xm02.jpg
2. No matter what angle I take the picture at, it will always look tighter than it really is (added pic below). While it's not as good as the pass side, the drivers side had 2" of clearance at it's tightest point w/about 1" more I can move it up if interference is an issue. The pipe (as appears above) doesn't actully run over the panhard bar but instead, wraps the spring a clears over the outmost point of the panhard mount (the 2" clearance). In all honesty, I laid under the car for a long period of time before deciding that if my suspension compresses suddenly more than 2".. I'm going be worrying about something other than the exhaust rubbing (that would be a hell of a bump).

3. The mufflers are exactly 14½" long and are made by me. I could not find a muffler that fit my location and moderatly low noise tone requiements. They are straight through and here's all they consist of (acoustic dampening fiberglass packing/insulation not shown in pic)..
http://www.deadbird.org/anews/du03.jpg
I cut, fit and welded all of the exhaust (and x-member) myself because I am (try to be anyways) a frugal person. I used 8- 90° bends and 2- 7' lengths of straigh pipe from JCWhitney. Overall (excluding headers), to make my duals, ran just under $150.
Last edited by deadbird; Dec 28, 2002 at 10:38 PM.
Member
Joined: Feb 2001
Posts: 277
Likes: 0
From: san antonio tx usa
Car: 84z28
Engine: chevy 388
Transmission: 700r4
heres mine 2 3inch pipes into one 4inch pipe into a flowmaster
you can see the rest at.
http://datrcom.org
you can see the rest at.
http://datrcom.org
Supreme Member

Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Hooker LT's, 3" pipes into 4" Y collector then back down to 3" Blowmaster exhaust. The y-pipe is dented in for extra clearance under the crossmember... I have not managed to scrape this exhaust on anything
Member
Joined: Feb 2001
Posts: 277
Likes: 0
From: san antonio tx usa
Car: 84z28
Engine: chevy 388
Transmission: 700r4
mine has sound clips you can hear them here.
http://www.darcom.org/darcom/darcom/darcom_006.htm
http://www.darcom.org/darcom/darcom/darcom_006.htm
Member
Joined: May 2003
Posts: 279
Likes: 0
From: Las Vegas
Car: 84 TransAM
Engine: Chevy 355
Transmission: TH350
here's my setup, true dual 2" pipes all the way, then flowmaster 40 series dumps.

here's the sound clip for it...
http://www.virtual-underground.com/p...ta_exhaust.wav

here's the sound clip for it...
http://www.virtual-underground.com/p...ta_exhaust.wav
Supreme Member

Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
I'll try to get a sound clip of my car tonight. I've attempted several times but even standing 30+ feet away my crappy digital cameras sound is too sensitive and gets distorted by the "drone" of the Blowmaster
Senior Member
iTrader: (2)
Joined: Mar 2003
Posts: 504
Likes: 0
From: Aurora, IL
Car: '92 Firebird
Engine: Poncho 455
Transmission: TH400
Axle/Gears: 12bolt
Originally posted by DARCOM
heres mine 2 3inch pipes into one 4inch pipe into a flowmaster
you can see the rest at.
http://datrcom.org
heres mine 2 3inch pipes into one 4inch pipe into a flowmaster
you can see the rest at.
http://datrcom.org
Member
Joined: Feb 2001
Posts: 277
Likes: 0
From: san antonio tx usa
Car: 84z28
Engine: chevy 388
Transmission: 700r4
it has hedman hedders with 3 inch collectors then to 3 inch pipes going around my frame and the spohn torque arm into one 4 inch pipe to one 40 series flowmaster
you can see all about my car at:
http://darcom.org
you can see all about my car at:
http://darcom.org
Senior Member
iTrader: (2)
Joined: Mar 2003
Posts: 504
Likes: 0
From: Aurora, IL
Car: '92 Firebird
Engine: Poncho 455
Transmission: TH400
Axle/Gears: 12bolt
Originally posted by DARCOM
it has hedman hedders with 3 inch collectors then to 3 inch pipes going around my frame and the spohn torque arm into one 4 inch pipe to one 40 series flowmaster
you can see all about my car at:
http://darcom.org
it has hedman hedders with 3 inch collectors then to 3 inch pipes going around my frame and the spohn torque arm into one 4 inch pipe to one 40 series flowmaster
you can see all about my car at:
http://darcom.org
Member
Joined: Feb 2001
Posts: 277
Likes: 0
From: san antonio tx usa
Car: 84z28
Engine: chevy 388
Transmission: 700r4
headman hedders part number #68460
this is the best ehaust i have ever had performance wise ,i started out with a stock exhaust witch was a stock 3 inch setup then put a flowmaster,then added edelbroks hedders. then i went with these headman headers with a duel pipes into two dyno max muflers .then to my current setup with is the four inch. every thing incresed with this setup 1/4 mile times and big notice in gas mileage.
this is the best ehaust i have ever had performance wise ,i started out with a stock exhaust witch was a stock 3 inch setup then put a flowmaster,then added edelbroks hedders. then i went with these headman headers with a duel pipes into two dyno max muflers .then to my current setup with is the four inch. every thing incresed with this setup 1/4 mile times and big notice in gas mileage.
Here's my car with the most recent dual setup. I swapped to a T5 though, and couldn't get the header clearance I wanted near the bellhousing so I swapped out the hedman LT's for shorties. The dual setup wouldn't fit at all then, and I wasn't about to do a third dual exhaust setup. I have a 3" hooker cat back minus the cat now
Last edited by onebinky; Mar 31, 2005 at 12:01 PM.
Joined: Jan 2004
Posts: 1,761
Likes: 4
From: The "D"
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
believe it or not it runs faster 1/4`s with the pipes on...
Joined: Jun 2002
Posts: 13,576
Likes: 30
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
greezemonkey's headers are the hooker BBC swap headers
here is some of mine:
http://www.cardomain.com/memberpage/437351/4
here is some of mine:
http://www.cardomain.com/memberpage/437351/4
Member
Joined: Mar 2003
Posts: 225
Likes: 0
From: Fontana, ca & saint clair shores, MI
Car: 1991 camaro Z28
Engine: LS1
Transmission: T56
yea wish they made them like that for the SBC would make it a lot easier to route the exhaust with the spohn torque arm.
Thanks
Justin
Thanks
Justin
Joined: Jun 2002
Posts: 13,576
Likes: 30
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
mufflex makes a y-pipe to fit the sbc hooker headers, but for the hedmans, your on your own.
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