SCCA Solo II class question
07-26-2005 | 07:48 PM
#1
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From: Lake Forest, IL
SCCA Solo II class question
Can you change the diff ratio and still be classified as Street Prepared?
I know that you can add a limited slip differential to a car that doesn't already have one but can you change rear end ratio and still be Street Prepared or would that bump you to Street Modified?
I read the rules but had trouble interpreting them and my lack of engineering knowledge of how the diff works probably contributed to this. Any help would be most appreciated.
P.S. This is not for an RX-8 but for another car.
I know that you can add a limited slip differential to a car that doesn't already have one but can you change rear end ratio and still be Street Prepared or would that bump you to Street Modified?
I read the rules but had trouble interpreting them and my lack of engineering knowledge of how the diff works probably contributed to this. Any help would be most appreciated.
P.S. This is not for an RX-8 but for another car.
07-26-2005 | 09:54 PM
#2
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You can't just change the gearing in Street Prepared. You can change the dif (and thus the gearing) to one that was available on a car listed on the same line.
Originally Posted by 2005SIIR
15.1.C
Equipment and/or specifications may be exchanged between different
years and models of a vehicle if (a) the item is standard on the
year/model from which it was taken, and (b) the years/models are
listed on the same line of Appendix A (Street Prepared Classes).
The updated/backdated part or the part to which it is to be attached
may not be altered, modified, machined or otherwise
changed to facilitate the updating/backdating allowance. Standard
factory installation methods, locations, and configurations are
alllowed. The updating and/or backdating of engines, transmissions
or transaxles must be done as a unit; component parts of
these units may not be interchanged. Cars not listed in the Street
Prepared sections of Appendix A may not be updated/backdated
until approved by the SEB and published in SportsCar magazine
or SCCA website.
Equipment and/or specifications may be exchanged between different
years and models of a vehicle if (a) the item is standard on the
year/model from which it was taken, and (b) the years/models are
listed on the same line of Appendix A (Street Prepared Classes).
The updated/backdated part or the part to which it is to be attached
may not be altered, modified, machined or otherwise
changed to facilitate the updating/backdating allowance. Standard
factory installation methods, locations, and configurations are
alllowed. The updating and/or backdating of engines, transmissions
or transaxles must be done as a unit; component parts of
these units may not be interchanged. Cars not listed in the Street
Prepared sections of Appendix A may not be updated/backdated
until approved by the SEB and published in SportsCar magazine
or SCCA website.
07-27-2005 | 07:19 AM
#3
Originally Posted by clyde
You can't just change the gearing in Street Prepared. You can change the dif (and thus the gearing) to one that was available on a car listed on the same line.
So you can swap out your torsen for a salisbury style but you can't throw in gears unless a different ratio was available from another car on the same line.
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