Front Sway bar? LSD??

[jsceash]

Originally Posted by Mrmaddbrad

Haha no no no. According to SCCA Solo rules, front sway bars may be removed or replaced without limit as long as it has the same mounting point, but rear sway bar may not be touched. And STR (Street Touring Roadster), and all ST classes for that matter, allow for the use of ANY differential. :P

Yay for spending way to much time with a rule book XD

14.10 ENGINE AND DRIVETRAIN
Engine and transmission must remain unmodified, including emissions
equipment,
K. Limited Slip Differentials
ST, STS – No limited slip differentials are permitted except for factory
standard viscous coupler type units.

This directly from the ST class solo rules The differential in a boxster is a part of the transmission and may not be altered. Swaybar may be changed in ST but only stock component changed in STOCK I'm not sure what SCCA book your looking at but these are directly out of the national 2011 book

Street prepared and above allows LSD changes

When I looked again the boxster is not considered in the STR class at all or any ST class in the class section it defined as

Street Touring Class (ST)

Class Requirements and Restrictions:
Coupes/Sedans - 4 seats minimum
(non-sports car-based)
Engine Displacement:
Up to 3.1L normally aspirated
or
Small turbocharged engines

specifically listed below

No Limited-Slip Differentials
except factory standard
viscous types

[jsceash]

If you want to change the sway bar on a boxster and run CS you can by adding the M030 suspension package if your car is I think a 1998 to a 2004. But you have to add all 4 struts all 4 springs and both sway bars and bushings. Because that is the way it was delivered through the dealers as a package.

If you change manufacturer to any body elses you can not run CS and then your in BSP class. If you modify your tranny IE LSD your in BSP class.
look at j.fro's comment

[Mrmaddbrad]

Yes! But STR was added this years as a national level class which means it should be in next years rule book. And this class allows for any differential...

[jsceash]

http://cms.scca.com/documents/2011%20Tech/2011%20SCCA%20solo%20rules.pdf
It may be important that you read chaper 14
It may also be important that you read Apendix A, read pages 175 and 176

[jsceash]

http://www.sdr-scca.com/solo2/2010-Solo-Rules.pdf
The 2010 solo rule book Same chapters
Apendix A pages 171 and 172

Porsches allowed in this class have not changed over the 2 year period, and do not include a boxster.