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thstone · 01-22-2014, 07:32 PM

Boxster's need and love negative camber just like any strut-based suspension! The stock set up maxes out at around -1deg camber in front but the car really needs much, much more.

A good starting point for a track-only setup is -3.0deg camber in front (where you go from there depends on driving technique, tire selection, tire temps, tire wear, etc.), maybe 0.5deg less camber in the rear, 1/16 toe (for stability, zero toe can feel "darty" but is generally faster), then add as much caster as you can get.

Of course, you'll need height adjustable coilovers, a set of GT-3 front adjustable lower control arms, adjustable front/rear drop links, and adjustable rear toe arms to reach this setup. Might as well throw in a set of sway bars while you're at it (GT-3 front, Tarett rear).

Have a race shop do the alignment and corner balance. You'll also need to keep an eye on air pressures to keep everything in balance.

This is a very good reference page: HELPFUL HINT: Porsche Boxster Suspension Setup - Stock, BSX, BSR - GSR Autosport Community

01-22-2014, 07:32 PM	#2
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	Boxster's need and love negative camber just like any strut-based suspension! The stock set up maxes out at around -1deg camber in front but the car really needs much, much more. A good starting point for a track-only setup is -3.0deg camber in front (where you go from there depends on driving technique, tire selection, tire temps, tire wear, etc.), maybe 0.5deg less camber in the rear, 1/16 toe (for stability, zero toe can feel "darty" but is generally faster), then add as much caster as you can get. Of course, you'll need height adjustable coilovers, a set of GT-3 front adjustable lower control arms, adjustable front/rear drop links, and adjustable rear toe arms to reach this setup. Might as well throw in a set of sway bars while you're at it (GT-3 front, Tarett rear). Have a race shop do the alignment and corner balance. You'll also need to keep an eye on air pressures to keep everything in balance. This is a very good reference page: HELPFUL HINT: Porsche Boxster Suspension Setup - Stock, BSX, BSR - GSR Autosport Community __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor Last edited by thstone; 01-22-2014 at 07:38 PM.