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Time for a rotary in the mix

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  • #16
    Re: Time for a rotary in the mix

    Thanks Chuck! Looks like noise levels are at the discretion of the organizers at this stage. Here is the excerpt from the rule book.

    1.10 VEHICLE NOISE
    .1 The organizers of an event may establish a maximum vehicle noise level
    either by class or for all vehicles. Measurement can be at different locations
    around the facility being used. Competitors are warned that track licenses
    increasingly specify noise limits and it is the competitorʼs responsibility to
    ensure their vehicle complies with the maximum vehicle noise level
    established for each event in which they compete. There are no protests or
    appeals allowed on organizer decisions regarding maximum vehicle noise
    levels, measurement or action taken by the organizers.
    Sample specified maximum vehicle noise levels:
    98db for ʻModifiedʼ cars
    95db all other cars at Shannonville Motorsport Park, Toronto Motorsport Park
    92db for all cars at Mosport Driversʼ Development Track

    .2 The Clerk of the Course at a Regional Championship Event will prohibit any
    vehicle from running which twice exceeded the noise level on the course or in
    a test session, as measured by a CASC-OR approved Noise Meter. At any
    non-championship event the Organizer or Clerk may prohibit any vehicle from
    running which the organizer deems to violate the maximum vehicle noise level.

    I remember back in 2006-2007 there was a run on Cherry Bombs at Canadian Tire when CMP opened. Their noise restrictions are enforced however, they are a bit more forgiving than the sample provided in the rule book.

    CMP Rules
    1.Screening Test - After a brief visual muffler check, a stationary test is undertaken. Sound levels will be measured 15 feet in front and behind the vehicle while the engine is revved at the maximum allowable rpm or the red line of the tachometer.
    ◦Cars, the average should be no more than 100 dbA with no single reading over 104 dbA.
    ◦Motorcycles, the average should be no more than 98 dbA with no single reading over 100 dbA.
    2.Pass-by Test - With the vehicle under full acceleration on the track, a reading will be taken from 50 feet. The maximum level allowed is 92 dbA. This level and standard is the most commonly used in North America and Europe and is where the entire industry is headed. Tests are valid for 9 months unless modifications to vehicle are made.
    CarGuy - Subaru BRZ #57
    sigpic
    Racing is life. Anything before or after is just waiting. Steve McQueen

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    • #17
      Re: Time for a rotary in the mix

      I do have the option of a 12" magnaflow muffler with a turn down right at the end of the exhaust system, I usually bring it with me to the track in case of a noise issue. I ran this car at Calabogie with the 12a naturally aspirated rotary last year and it was fine with just the turn down, the turbo rotary will be quieter. (but faster!!!)

      Steve
      racerguy19

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      • #18
        Re: Time for a rotary in the mix

        Sounds like you're good to go. See you at the track!
        CarGuy - Subaru BRZ #57
        sigpic
        Racing is life. Anything before or after is just waiting. Steve McQueen

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        • #19
          Re: Time for a rotary in the mix

          I will be back this year with my rotary as well.
          1500 Lbs looking for 250 HP from the new motor build. Should be fun!

          you will have a great time with you car
          Now CrITical Inc.
          Misssion Critical It solutions for your business.

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          • #20
            Re: Time for a rotary in the mix

            Originally posted by afirma View Post
            1500 Lbs looking for 250 HP from the new motor build. Should be fun!
            250HP! Hmm. bridgeport? turbo?

            Keep that baby cool!
            Another quality post from Black Dwarf Racing

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            • #21
              Re: Time for a rotary in the mix

              I'll also be driving a Rotary this year.
              www.nummelinmotorsportgroup.com
              sigpic

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              • #22
                Re: Time for a rotary in the mix

                Another rotary here!
                Steve Bortolotti
                #82 Mazda RX8

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                • #23
                  Re: Time for a rotary in the mix

                  we are gonna have so much oil on the track.....
                  set tire pressures to winning!

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                  • #24
                    Re: Time for a rotary in the mix

                    Oh, ok......that's how it's gunna be eh!? All right, gloves are off !! Let me at'm, let me at'm!

                    Steve

                    Oh.....and you race a ??????

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                    • #25
                      Re: Time for a rotary in the mix

                      Originally posted by thgear View Post
                      we are gonna have so much oil on the track.....
                      Hopefully, like sand on an icy road, the fragmented bits of apex seal scattered everywhere will provide some grip.
                      03 Z06 #72
                      15 Prius V

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                      • #26
                        Re: Time for a rotary in the mix

                        Well I guess that's where most honda's will run over them......behind the Mazda rotarys!!

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                        • #27
                          Re: Time for a rotary in the mix

                          Don't ya love all this smack talk to get a new season all revved up!!!!

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