Front Sway bar? LSD??

[Mrmaddbrad]

Hmm alright! Cool! Seems like its worth it then! At least if i'm dying to spend mass amounts of money XD

Mind me asking how much that rebuild cost you?

[blue2000s]

I've only been on a track a couple of times in my 2000S. But I really didn't miss the limited slip differential. It depends on the track and skill level, of course, but I never had trouble with getting the power down. Especially with hot tires. I'd actually like to have it, but I don't think I need it.

I'm on the M030 suspension. I think it does a nice job of giving the car very neutral handling.

[j.fro]

The rebuild plus the diff was $4000. In hindsight, I overpaid. I believe you can buy a rebuilt trans directly from Guard for $3600 with the diff. Whatever you do, get the G-Box detent and swap it for the stock detent. It's $100, an easy job, and the trans will not pop out of second or third gear ever again.

[jsceash]

I believe the mod you are talking about will put you into a street prepared class. The limited slip differential is not an allowed replacement in stock. Sway bars are allowed to be changed if they are stock on a car of the same year or older and the part or vehicle don't have to be modified to install it.

[Mrmaddbrad]

Originally Posted by jsceash

I believe the mod you are talking about will put you into a street prepared class. The limited slip differential is not an allowed replacement in stock. Sway bars are allowed to be changed if they are stock on a car of the same year or older and the part or vehicle don't have to be modified to install it.

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

[j.fro]

FWIW, my car is in BSP. Along with those damn Subaru WRX STI's. In the hands of a skilled driver, those are freakin' fast.

[doosigoubbano]

It still that?

[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