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CS Exhaust Adjustable??

Discussion in 'Technical Q&A' started by Tipo815, Nov 21, 2005.

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  1. Tipo815

    Tipo815 F1 Rookie

    Nov 1, 2003
    3,565
    Newport Beach, CA
    Full Name:
    Jeffrey
    #1 Tipo815, Nov 21, 2005
    I know the CS and 430 have the variable exhaust system with a flapper that opens as the rpms climb. I also know that some people "lock" their flappers open so the sound is not muffled at all. I happen to like it muffled at idle since it is not obnoxious for my neighbors at 6:00am when go to Crystal Cove. However, I would like the "unmuffled" sound to come on sooner. Can the flapper be adjusted to open at a lower rpm? I know vacuum pressure opens them. Is there a way for the pressure to be increased earlier? Instead of them opening at around 6000rpm can they be opened at 4000rpm?
     
  2. Gary48

    Gary48 Guest

    Dec 30, 2003
    940
    #2 Gary48, Nov 21, 2005
    Sure why not make something adjustable? There exsisted a flapper once that was a off center perforated butterfly that was spring loaded and could be adjustable. It made a lot of sense then although I did not try one. Because the shaft on the butterfly was off center the exhaust pressure would open it when exhaust and spring pressure were overcome.
     

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