fast steering rack
Burning Brakes
Joined: Oct 2009
Posts: 1,104
Likes: 231
From: Mainhatten / Frankfurt
I do not know why, but my feeling was, that despite the bigger diameter, the front RS sway worked even better and had a little bit more "feeling" was working more sensitive... I had it in the middle ore one hole harder than middle, rear (RS) always full hard...
Burning Brakes
Joined: Oct 2009
Posts: 1,104
Likes: 231
From: Mainhatten / Frankfurt
I run a full 993 RS front end in my 964 and love it. I drive a lot of super tight twisty back roads so the increased ratio is welcome. It doesnt bother me on track at all.
The issue is that the wider track causes the tire to hit the front fender and bumper where they meet on bad bumps. This is with castor maxed, of course. Even with this area ground away past the TSB recommendation and going from a 1.5" E88 lip down to a 1" lip (8" total vs the 8.5" I started with and prefer), I cant go as low as I want with a 350lb front spring or it will rub, particularly on the drivers side. At my current height it's really no problem, but ideally Id like to be a few mm lower front and rear. My avatar is at the height I liked, Im currently higher.
Ive considered going back to narrow uprights, but I think the wider track vs the lower height cancels out mostly and I love the way the car drives at the moment. Plus, not needing a jack to get the lift arm under it is a nice plus.
I do think the rack I bought and had rebuilt is on its way out. It feels much heavier than my 993s and I had 2 bad experiences with Rack Doctor getting it rebuilt then promptly re-rebuilt. I may just go manual because I dont mind the extra effort. I just run a 225 up front and there's nothing in the frunk.
The issue is that the wider track causes the tire to hit the front fender and bumper where they meet on bad bumps. This is with castor maxed, of course. Even with this area ground away past the TSB recommendation and going from a 1.5" E88 lip down to a 1" lip (8" total vs the 8.5" I started with and prefer), I cant go as low as I want with a 350lb front spring or it will rub, particularly on the drivers side. At my current height it's really no problem, but ideally Id like to be a few mm lower front and rear. My avatar is at the height I liked, Im currently higher.
Ive considered going back to narrow uprights, but I think the wider track vs the lower height cancels out mostly and I love the way the car drives at the moment. Plus, not needing a jack to get the lift arm under it is a nice plus.
I do think the rack I bought and had rebuilt is on its way out. It feels much heavier than my 993s and I had 2 bad experiences with Rack Doctor getting it rebuilt then promptly re-rebuilt. I may just go manual because I dont mind the extra effort. I just run a 225 up front and there's nothing in the frunk.
What i was told to cure the issue with the wheel position is, that at least the KW monoball topmounts should also move the wheel back in the center position, even with max caster... So if i will decide, that i have to make the BBS also suitable for the convertible, it would add KW topmounts front to move the wheel backwards..
This here was a test with reduced caster - but that drove not so good.. and even with this reduction, the wheel is not centered and scrubbed a little bit - no chance to legalize the wheels at the tüv with this scrubbing
and this is, what the blue car looked like last week (with the first layer of blue paint)
and this week, in the middle of the second layer blue and the final clear coat (the paint shop resists on adding clear coat to the maritime paint job)
Drifting
Joined: Aug 2002
Posts: 2,211
Likes: 71
From: Stockholm, Sweden
My feeling was, rear far to big and the front - combined with a 964 RS rear sway was also not working as good, as the 964 RS front sway i fitted later.
I do not know why, but my feeling was, that despite the bigger diameter, the front RS sway worked even better and had a little bit more "feeling" was working more sensitive... I had it in the middle ore one hole harder than middle, rear (RS) always full hard...
I do not know why, but my feeling was, that despite the bigger diameter, the front RS sway worked even better and had a little bit more "feeling" was working more sensitive... I had it in the middle ore one hole harder than middle, rear (RS) always full hard...
Thread Starter
Instructor
Joined: Apr 2007
Posts: 210
Likes: 16
From: Sweden