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Last Post 04 Aug 2016 11:05 AM by  ClubSport
STL MX-5 Question
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kneedragger302
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06 Apr 2016 10:18 AM
    06 and up MX-5 with the factory 2 liter MZR motor, I just want to verify I'm reading the rules correctly. You need to use a 55mm RP and are able to convert to the acura throttle body if desired. Has the RP always been in this rule set or is this something new?
    ClubSport
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    04 Aug 2016 11:05 AM
    All 2 liter engines will receive some type of restrictor in STL, that is a CRB decision. Since the MZR isn't as potent as the K20, it gets a bigger restrictor than the K20.
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