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Thread: measurements for the RSR muffler needed

  1. 11-01-2014, 09:57 PM #1
    advtracing
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    measurements for the RSR muffler needed

    Converting a stock into a RSR muffler , what is the Factory dia of the outlets and lengths please (in metric)
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    John Gausden
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  2. 11-02-2014, 06:39 AM #2
    tom1394racing
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    John

    MY RSR has 3" (76mm) OD by 5" (127mm) length on the outlet tubes and 30" (76mm) center to center outlet tube spacing.
    Tom Butler
    1973 RSR Clone
    1970 911E
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  3. 11-02-2014, 07:09 AM #3
    edmayo
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    I built my copy from a already butchered stock muffler. The pipe location for me was based on lining up the pipes with the shortened bumper guards of the 911R rear bumper. Also there is a baffle (at least on a stock muffler) that is a few inches from the end of the muffler. That puts the pipes just outboard of those baffles, which I cut holes in, in addition to the baffles further inboard that are cut for a conventional sport muffler. I don't claim this to be any kind of genuine copy of a 'R' muffler, just telling you what I did. I chose a 2 1/2" pipe diameter, the length is just short of reaching the ends of the bumper guards.
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  4. 11-02-2014, 09:19 AM #4
    advtracing
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    Great thanks guys just the data i needed
    John Gausden
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