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Straight back and dump?

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Old Jun 30, 2011 | 08:49 AM
  #1  
89camaro355's Avatar
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Joined: Jun 2011
Posts: 28
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From: Maryland
Car: 89 camaro
Engine: 355 sbc
Transmission: th350
Axle/Gears: 4.56
Straight back and dump?

Anyone ever run there pipes straight out of the headers then dump after the mufflers? Any clearence issues?
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Old Jun 30, 2011 | 09:06 AM
  #2  
Apeiron's Avatar
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Straight back and dump?

Nothing but clearance issues.
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Old Jun 30, 2011 | 09:11 AM
  #3  
89camaro355's Avatar
Thread Starter
Junior Member
 
Joined: Jun 2011
Posts: 28
Likes: 0
From: Maryland
Car: 89 camaro
Engine: 355 sbc
Transmission: th350
Axle/Gears: 4.56
Re: Straight back and dump?

Was afraid of that. My questions is what do I do lol. I have 3" longtubes
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Old Jun 30, 2011 | 10:03 AM
  #4  
Apeiron's Avatar
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Straight back and dump?

Just have to route around everything like everyone else with longtubes does.
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Old Jun 30, 2011 | 10:36 AM
  #5  
plasmeh's Avatar
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Joined: Jul 2008
Posts: 426
Likes: 2
From: Binghamton, NY
Car: 1986 IROC-Z
Engine: 360cu @ 10.5:1
Transmission: T56 - Pro 5.0
Axle/Gears: 4.10 - Zexel Torsen - Moser Axles
Re: Straight back and dump?

I modified my transmission crossmember to allow dual 2.5" straight pipes to go underneath and tuck high. Never scrape.
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Old Jun 30, 2011 | 10:56 AM
  #6  
Apeiron's Avatar
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Straight back and dump?

You don't have an automatic.
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Old Jun 30, 2011 | 12:21 PM
  #7  
fireturd350's Avatar
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Joined: Jul 2001
Posts: 3,204
Likes: 7
From: New Boston, IL, USA
Car: '90 Formula 350
Engine: 383 SBC
Transmission: ProBuilt S/S 700-R4 & ACT 9" Stall
Axle/Gears: 10 bolt 3.23
Re: Straight back and dump?

Automatic is a pain to work around. You need at least an S type bend on each side else you'll run into the transmission/frame rails with Hooker long tubes. That will let the pipes drop down far enough to clear stuff hopefully. If you're using an aftermarket torque arm like the Spohn one that's just more stuff hanging down.

My 3" Y pipe is pretty well dinged in to fit. It's way to low in the front still. I've been thinking about how to change it. I might try notching the frame rails, welding plates in to box it off again, run the pipes through there, and connect the Y after the transmission.
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