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  1. #1

    Join Date
    Jul 2005
    Las Vegas, NV

    RR cam and porting work

    Has anybody tried just the RR cam without headwork? Does the engine
    respond or is the porting absolutely necessary. PPG sells the RR head complete, but I thought I remembered Jerry had Mark Underwood do his. Any suggestions??? Terry

  2. #2

    Join Date
    Jul 2005
    Cam is worth 150 - 200 RPM with out head work when set up right.

  3. #3
    JD 1's Avatar
    Join Date
    Aug 2005
    St. Louis, MO
    without a dout call Niles@ Rude Performance, Had Underwood do my porting and it looked good but when I got it redone by Niles it made quite a diff. and he uses bigger titn. valves. You can tell a big diff. just by looking at it with a naked eye.

  4. #4
    Moderator two2curupt's Avatar
    Join Date
    May 2005
    Toronto, Canada
    Not to bust your bubble jd1...I would say that both Nils an Mark are about on the same level when it comes to porting...Do not waste your $$$ on the factory ported head PPG sells..My first head was done by rotax and it sucked....My second one was done by RaceTech and it is pretty much a picture perfect job...I hear Nils is putting out some nice pieces too..He does like the oversized valves...I would definatly stick with those 2 guys when it comes to porting though...

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