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  1. #1
    Join Date
    Feb 2012
    Location
    Puerto Rico
    Posts
    26

    Default motorcycle header with turbo

    Hi everyone!, I'll star very soon to create a racing custom headerto put a turbo on my bike. I need to know what materials are better for that proyect?

  2. #2
    Join Date
    Nov 2012
    Location
    Northern Arizona
    Posts
    473

    Default

    I've seen people use 304ss but iirc there is another grade that handles heat cycling better. What kind of bike is it?
    MillerMatic 251
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    Victor Journeyman OA

    A rockcrawler, er money pit, in progress...

  3. #3
    Join Date
    Jan 2009
    Location
    SW Ohio
    Posts
    135

    Default

    321 is a stabilized grade of stainless that was developed to resist cracking in aircraft exhaust systems. It's available in various sizes and radii from Burn's stainless. The correct filler is 347 ... another stabilized grade of stainless. I recommend it for turbo exhaust because of the high temperatures.
    Dynasty 300DX
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  4. #4
    Join Date
    Mar 2013
    Location
    Ohio
    Posts
    2

    Default

    You can use 321 but remember it's more expensive and less readily available than 304. A properly welded and back purged 304 manifold will be perfectly fine for this application.
    Miller Dynasty 350
    www.bpautosports.net


  5. #5
    Join Date
    Feb 2012
    Location
    Knoxville, TN
    Posts
    82

    Default

    Lots of guys are using sch10 pipe for this these days because it's cheap and easy to get hold of. 1.25 and 1.50 size.. The 321 is the right way but the bends are very expensive and like someone already said the correct wire is 347. I have a set of bends for a header in my tool box now that are 321 they came from Burns Stainless. You don't want to kill one in the process they will get your attention when you have to start buying replacements.

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