Shifter exhaust questions

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This topic contains 4 replies, has 3 voices, and was last updated by  Scott Boito 4 years ago.

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  • November 12, 2014 at 5:10 am #36917

    Scott Boito
    Participant

    Hi guys,

    I have a few questions about my RLV R4 pipes that I hope someone can help answer.

    1. What metal are these made from?  I have a crack that needs to be welded and my welding friend wants to know so he can adjust the welder appropriately.

    2. How does everyone change the angle of the stinger on these?  My current stock R4s both have straight exits that interfere with the kart stacker.  So I’d like to angle them to the side and downward a bit like I’ve seen on other karts.  Is this something easily accomplished with a torch?

    Thank you in advance.

    Scott

  • November 12, 2014 at 7:34 pm #36983

    Ted Hamilton
    Participant

    If you’re already repairing a crack, I’d just cut out a little wedge, bend the stinger over and weld the new seam together there too.

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    2014 Praga Dragon / IAME KA-100

  • November 13, 2014 at 5:44 am #36999

    Scott Boito
    Participant

    Thanks for the suggestion, Ted.  Is that how people modify them?  And does it affect the exhaust flow/RPM/HP any?

    So nothing special about the alloy used in these?

  • November 14, 2014 at 12:27 pm #37088

    Greg Lindahl
    Participant

    Contact RLV for repair and change to angled stinger.

  • January 6, 2015 at 10:55 am #39971

    Scott Boito
    Participant

    Got the 20 degree angled stingers from RLV ($20/each) and had a friend redo everything and weld the crack.  Worked like a charm.  Got them back yesterday and they will work perfectly!  Thanks for the helpful suggestions.

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