06-09-2009, 02:06 PM
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#1
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Track rat
Join Date: Nov 2006
Location: Southern ID
Posts: 3,701
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Udo,
As you are already finding out, there is a lot of steer manure on the internet posing as "Boxster Performance Upgrades". Take your money they will, make your car measurably faster... not so much. I appreciate your enthusiasm. Choose wisely.
If you are running 245/40/17 RE01Rs x 4 you are on very competitive tires for street stock. If you are not already outrunning all of the stock 996s and most of the stock 997s in Auto-X... it ain't the car. 
With $1000 to spend to get the most real performance gains I would:
Lower the car 1", get a performance alignment, and remove 100lbs of weight. Maybe you will still have a little left over to take honey out to dinner.
__________________
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Last edited by Topless; 06-09-2009 at 02:42 PM.
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06-09-2009, 02:27 PM
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#2
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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My favorites are the front and rear strut tower braces..
__________________
Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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06-09-2009, 02:30 PM
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#3
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Registered User
Join Date: Apr 2006
Location: Chicago
Posts: 585
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Quote:
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Originally Posted by Brad Roberts
My favorites are the front and rear strut tower braces..
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Rear tower brace? Are you serious? I've always thought the rear would be stiff enough with the roll bar...
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06-09-2009, 02:35 PM
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#4
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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No no.. they are a JOKE. The Boxster (compared to the CaymanS) has a huge STEEL bridge between the rear shock towers!!! The Cayman has nothing. In the front of a Boxster, it has two FACTORY braces in place.. and Porsche thought they were good enough for the GT3 CUP CARS!! and yet I still see people selling strut tower braces (WTF??) Most people never pull back the front plastic and SEE the damn things!! LOL They instead bolt a new shock tower brace OVER them.. LOL
B
__________________
Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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06-09-2009, 03:06 PM
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#5
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Schatten-Baum-Mechaniker
Join Date: Mar 2005
Location: Mississippi
Posts: 242
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Brad,
on my 2000 Boxster S that I use for daily driver and track days (DE), Should I go with ROW M030 or Bilstein PSS9?
thanks.
__________________
Tommy
2000 Boxster S
1973 914
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06-09-2009, 03:11 PM
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#6
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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Go with the Bilsteins. I see you have a 914, so this means you have been driving a mid-engine car for awhile I run the Bilsteins with 450 and 500 rate springs with GT3 bar and Tarett 4 way rear bar on a lot of Boxster's. This REALLY balances the car out nicely. It is the same setup we ended up with on the BoxsterSpec cars.
Saying that.. I also have Boxster's with 700 and 800 rate springs under them, but not on PSS9's.
B
__________________
Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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06-09-2009, 05:50 PM
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#7
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Registered User
Join Date: Jun 2008
Location: Illinois
Posts: 147
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Brad, I got my hands on a front S bar, so we'll see how that does on the track. We're doing one little change at a time to see how that affects the car's performance.
There are a few more autocrosses this year - I think I'm going to request another number for the car so that I can run too.
Although it hasn't been mentioned (unless I missed it), GT3 control arms and Brad's recommended alignment settings totally transformed our Tip Boxster.
__________________
Charles Navarro
President, LN Engineering and Bilt Racing Service
http://www.LNengineering.com
Home of Nickies, IMS Retrofit, and IMS Solution
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Lil Red
2009 Porsche Cayman 2.9L
