floor pan rules - ???

[Art Smith]

how far laterally may (ie: compliantly) the floor pan extend beyond the lower frame rails?? where is it written in the GCR??

Art
artesmith@earthlink.net

[Daryl DeArman]

how far laterally may (ie: compliantly) the floor pan extend beyond the lower frame rails?? where is it written in the GCR??

Art
artesmith@earthlink.net

As far as you can successfully argue that it doesn't satisfy their definition of an airfoil. , Assuming the maximum width is still observed. (37.40")

[S Lathrop]

Art,

I would argue that any extension of the belly pan beyond the edge of the lower frame rails is a "bad" construction practice. This is especially true when the belly pan is part of the frame structure. I have seen these extended edges lead to the belly pan being torn away from the bottom of the frame in off course excursions.

I rivet a .060 aluminum angle to the side of the lower frame rails and use the angle to support anything I want extending beyond the lower frame rail.

I have seen as much as a 30% degradation of the torsional strength of a frame from a belly pan loosing its bond to the frame.

[EricP]

Art,

I would argue that any extension of the belly pan beyond the edge of the lower frame rails is a "bad" construction practice. This is especially true when the belly pan is part of the frame structure. I have seen these extended edges lead to the belly pan being torn away from the bottom of the frame in off course excursions.

Given many folks sit on their pan, the thought of this makes my butt hurt.

[Art Smith]

thanks guys; your posts answer my question!!

Art
artesmith@earthlink.net

[GAC]

I discussed this with the SCCA club racing board in 2014. It is limited by the bodywork maximum width rule, which is 95 cm (37.40 in). It has to be flat, ie not an airfoil until you reach the section at the back for diffusers.


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