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Thread: Question about adding flex couplers to my new exhaust system

  1. #1
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    Question about adding flex couplers to my new exhaust system

    I'm going to redesign my 2-1/2" head pipes to 3", and I've decided to add stainless braided flex couplers. They come in a variety of lengths, and I don't know what length to pick that is adequate in isolating the engine vibration. One feature I think I want is the inner braid liner. So, come on engineers, help me out!
    Dave, from the old neighborhood in Jersey!

  2. #2
    Registered Member chevynut's Avatar
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    I debated whether or no to add them to my finished exhaust system but after assembling it I decided to go for it. Mine are 3.5" ID and 6" long. I was trying to mostly address any slight misalignment of the v-band clamps and to avoid some stresses in the system.


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    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension

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  3. #3
    Registered Member WagonCrazy's Avatar
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    I have none of those in my new exhaust system... wondering what I've missed here...
    1957 Nomad- LS1/T56 on C4 chassis- [URL=http://s78.photobucket.com/user/pcardey/library/57%20Chevy%20Nomad%20wagon[/URL]

    1959 Fleetside Apache 1/2 ton, shortbed, big window- [URL=http://s78.photobucket.com/user/pcardey/library/59%20Apached%20Fleetside%20Big%20Window%20Shortbed[/URL]

  4. #4
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    CN, are your exhaust pipes solid mounted to the frame, or hung with rubber hangers?
    Dave, from the old neighborhood in Jersey!

  5. #5
    Registered Member chevynut's Avatar
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    Quote Originally Posted by Bitchin'57 View Post
    CN, are your exhaust pipes solid mounted to the frame, or hung with rubber hangers?
    I used a combination of Deeds Engineering hangers and OEM rubber type. I set up the Deeds hangers so they slide instead of being mounted solid to the frame. I have hangers behind the trans crossmember, at the shock crossmember, and just forward of the bumper.

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    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension

    You can see my 56 Nomad build here http://www.picturetrail.com/chevynut

    For affordable C4 Corvette Suspension conversions for your car, visit http://www.classicedgedesigns.com

    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax

  6. #6
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    Those Deeds hangers are sharp. I looked them up, considering the quality, they aren't crazy expensive, either. I've used spherical rod ends as exhaust hangers on other hot rods. I might consider using them again.
    Dave, from the old neighborhood in Jersey!

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