Rozwell, that sounds like an interesting setup you've got. I'm running Bilstein's PSS9 system on my GTI and I'm very happy with them.
Being an adaptation of the PSS9, your application is a threaded body damper, right? Spring rates similar to the H&R's are way too low for track duty... As a reference I was running a 500lb/in front spring and a 275lb/in rear spring on my Leda kit. That was borderline not enough on smooth tracks, I couldn't imagine anything less performing nicely.
Don't take this the wrong way, but I can't help but wince at the thought of swapping suspensions for track days...
Splitting the knuckle at the front, etc, etc...
Are you having to tie-wrap the ABS wires and brake lines to the Bilstein struts, or did they also weld on the tabs for OEM style mounting? They must have done that to accomodate a front sway bar, especially with those low spring rates, right? Unless you had to relocate the end-link?
I did away with the front bar on my setup to allow the threads to run lower down the strut's body.. otherwise I could only run a 5" spring which would go into coil bind after 1" of compression travel once the car was down on its suspension.. Not acceptable for track duty.
It took a long time to design my setup, I'm just impressed that Bilstein were able to whip up a one-off that even fit on the car witout much R&D! 1500$ can't possibly be cost price, unless your dampers have external reservoirs and separate bump and rebound damping adjusters? But that's far off the PSS9 spec!!
More info please.
Pics maybe, while they're not on your car at the moment?
