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Wednesday, 8 April 2009

Junior Ford Focus Tech Bulletin

April 9, 2009

USAC Technical Bulletin

Junior Ford Focus intake restrictor plugs and intake tubes must be

installed in a manner that insures that all air entering into the engine

intake passes through the throat of the restrictor. When measured at the

narrowest point, the throat of the restrictor must not exceed .755

inches. The entry and exit taper dimensions, as measured with the

existing taper gauge, remain unchanged. Any attempt to allow air and/or

fuel to enter the intake through any other passage than the throat of

the restrictor will be considered an attempt to defeat the restrictor

and will result in disqualification or other penalties deemed

appropriate by USAC officials.