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true dual 3"

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Old Oct 27, 2012 | 11:38 PM
  #1  
tpibird305spd's Avatar
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Car: firebird
Engine: 355
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true dual 3"

Working on my exhaust after doing the T56 swap and thought I would post some pics. Im using Hooker 2210's into Headman 3" S-bend collector extensions to a summit 3" X-pipe kit with Flowmaster supper 44's and taking the easy rout for now with turn downs. Here are some picks of the progress so far....
Attached Thumbnails true dual 3"-1022121808.jpg   true dual 3"-1022121947.jpg   true dual 3"-1022121810a.jpg  
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Old Oct 27, 2012 | 11:47 PM
  #2  
tpibird305spd's Avatar
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Car: firebird
Engine: 355
Transmission: T-5 NWC
Axle/Gears: 4.11
Re: true dual 3"

Here are a couple more. I hope to finish mockup and have everything ready for finish welds tomarow. I have had the car on the ground to move it for other work in the shop and so far I have great ground clearance. I plan to modify the floor directly under the back seats so I can tuck the mufflers in and make it look somewhat factory.
Attached Thumbnails true dual 3"-1022121809.jpg   true dual 3"-1022121811.jpg  
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Old Oct 28, 2012 | 12:21 AM
  #3  
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From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: true dual 3"

Nice work!

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Old Oct 28, 2012 | 03:04 AM
  #4  
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From: Mountlake Terrace, Wa
Car: 86 Iroc + 83 Firebird
Engine: Iroc 305 TPI, Firebird 305 4bbl
Transmission: 700r4 in both.
Axle/Gears: Iroc 3.27 Firebird 3.23
Re: true dual 3"

looks good so far, good job!
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Old Oct 29, 2012 | 11:44 AM
  #5  
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From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: true dual 3"

T56 + custom crossmember = epic success

Just a matter of fitting mufflers under the back seats now.
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Old Oct 29, 2012 | 01:03 PM
  #6  
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From: Orlando
Car: 1991 Camaro Z28
Engine: 357, Canfield heads, solid roller,
Transmission: Upgraded 03 Cobra T56
Axle/Gears: 9" 3.50 gears and Detroit Locker
Re: true dual 3"

Looks good. Almsot exactly how I have mine. Are you running a stock torque arm? I wound up having to make a whole crossmember just for my Spohn arm.
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Old Oct 29, 2012 | 04:36 PM
  #7  
tpibird305spd's Avatar
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Car: firebird
Engine: 355
Transmission: T-5 NWC
Axle/Gears: 4.11
Re: true dual 3"

Thanks for the good words guys. I havent been able to work on it anymore since this storm started rolling in. Lancaster county pa, my home, is suposed to get hit bad tonight. built91Z28 I am running a jegster adjustable torque arm, I had a spohn with my T5 but their design takes up a lot of space.
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Old Oct 29, 2012 | 04:38 PM
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tpibird305spd's Avatar
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From: PA
Car: firebird
Engine: 355
Transmission: T-5 NWC
Axle/Gears: 4.11
Re: true dual 3"

Oh and the crossmember is a Hawks, I had to modify it because Im running an LS1 T56 with a McLeod bell so its a little long compared to an LT1 T56 which is what I think Hawks built the crossmember for.
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Old Oct 31, 2012 | 08:59 PM
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From: PA
Car: firebird
Engine: 355
Transmission: T-5 NWC
Axle/Gears: 4.11
Re: true dual 3"

Got the mufflers on, everything tack welded, hangers in place and the turndowns made and tacked on. I cut the back seat tubs to make room for the mufflers to tuck in better. I think it all turned out well so far, looks like I have good clearance all around. In the picture with the three cans they are all directly undey the exhuast with the middle one directly below the X-pipe
Attached Thumbnails true dual 3"-1030122035.jpg   true dual 3"-1030122041.jpg   true dual 3"-1030122044.jpg  
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Old Oct 31, 2012 | 09:04 PM
  #10  
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From: PA
Car: firebird
Engine: 355
Transmission: T-5 NWC
Axle/Gears: 4.11
Re: true dual 3"

Here shows that there is a little room between the exhaust and the floor.
Attached Thumbnails true dual 3"-1030122053.jpg   true dual 3"-1030122053a.jpg  
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Old Oct 31, 2012 | 09:12 PM
  #11  
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From: PA
Car: firebird
Engine: 355
Transmission: T-5 NWC
Axle/Gears: 4.11
Re: true dual 3"

And here is the last part of the project. My floor looks like hell right now but I plan to use some sheet steel that I have to seal everything back up and make things look nice and somewhat flat. I ran out of shield gas so finish welding the exhaust and finishing the floor will have to wait a couple days till I have time to get my bottle filled.
Attached Thumbnails true dual 3"-1030122047.jpg   true dual 3"-1030122048a.jpg  
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