Notices
993 Forum 1995-1998

Pros/Cons of Locking Out Kinematic Toe

Thread Tools
 
Search this Thread
 
Old 03-04-2011, 03:59 PM
  #31  
jdistefa
Rennlist Member
 
jdistefa's Avatar
 
Join Date: Sep 2006
Location: Onterrible
Posts: 7,898
Received 447 Likes on 243 Posts
Default

More reading moderated by Bill....

http://forums.pelicanparts.com/porsc...nalysis-2.html
Old 03-04-2011, 04:07 PM
  #32  
jungleboy
Pro
 
jungleboy's Avatar
 
Join Date: Mar 2003
Location: Beltsville, MD
Posts: 535
Likes: 0
Received 1 Like on 1 Post
Default

Wow, what a fascinating topic! You guys are extremely knowledgeable about this... Would any of you recommend some good literature to learn more? Possibly related to porsches and to be wishful, maybe even 993s?? Thanks...
Old 03-04-2011, 04:11 PM
  #33  
jdistefa
Rennlist Member
 
jdistefa's Avatar
 
Join Date: Sep 2006
Location: Onterrible
Posts: 7,898
Received 447 Likes on 243 Posts
Default

Arun,

The best place to learn about this is factory manuals and online forums (Rennlist, Pelican Parts). To my knowledge this topic is not well covered in most retail Porsche enthusiast books.

Doing your own alignment - and driving different setups - is the IMHO the best way to learn about these things.

It's useful to own a kinematic tool, or at least ensure that your shop has one .

http://www.autometricsmotorsports.co.../ktt/index.htm
Old 03-04-2011, 04:30 PM
  #34  
trophy
Race Car
 
trophy's Avatar
 
Join Date: Nov 2005
Location: Calgary...Under my car... :)
Posts: 3,918
Received 9 Likes on 9 Posts
Default

Originally Posted by Bill Verburg
Like I said I need to model this for a better understanding, on mine I set KT to 2(least I could get equally on both sides using the race gauge) but have the harder RS bush's, solid sides and monoball toe arm. Handling is fantastic. I do need more front grip though
Originally Posted by jdistefa
^ Ha, yeah we all need more front grip!

That's what the increased front track in the RSR setup is for
Thats why I am going to 9" wheels on the front with 255 tires..... Much more grip...
Old 03-04-2011, 04:38 PM
  #35  
jungleboy
Pro
 
jungleboy's Avatar
 
Join Date: Mar 2003
Location: Beltsville, MD
Posts: 535
Likes: 0
Received 1 Like on 1 Post
Default

Matt - Yeah, I've got the factory service manual and 993 essential guide that really helps me through stuff, not to mention this forum. The factory manual goes through how to physically adjust, remove etc. But I guess, I am looking for something that explains why from a cause/effect perspective. The graphic that Bill put up seems very educational. Anyway, I'll let you guys get back to your discussion and see what I can't pick up as an observer. Thanks...

Steve - 9"/255s on a light set of wheels sound like damn good solution
Old 03-04-2011, 04:51 PM
  #36  
Bill Verburg
Addict
Rennlist Member

 
Bill Verburg's Avatar
 
Join Date: May 2001
Posts: 12,254
Received 512 Likes on 352 Posts
Default

Originally Posted by trophy
Thats why I am going to 9" wheels on the front with 255 tires..... Much more grip...
Yes, I'm switching to 8.5"s w/ either 235/40 or 245/35 for the front, I had 9"s but didn't like the fit.

Please post pics and let us know how the 255/ works out. Seems kind of too big to me but what do I know
Old 03-04-2011, 05:10 PM
  #37  
Bill Verburg
Addict
Rennlist Member

 
Bill Verburg's Avatar
 
Join Date: May 2001
Posts: 12,254
Received 512 Likes on 352 Posts
Default

Originally Posted by jdistefa
^ Ha, yeah we all need more front grip!

That's what the increased front track in the RSR setup is for
yeah but some of us like the n/b and will live w/ some compromises
Old 03-04-2011, 05:13 PM
  #38  
Bill Verburg
Addict
Rennlist Member

 
Bill Verburg's Avatar
 
Join Date: May 2001
Posts: 12,254
Received 512 Likes on 352 Posts
Default

I hope Cris can post some pics of the leading leg bush, it sure does look like the leading leg bush is a monoball, just covered in rubber.

I didn't know that, it's sure great to learn something new
Old 03-04-2011, 05:14 PM
  #39  
jdistefa
Rennlist Member
 
jdistefa's Avatar
 
Join Date: Sep 2006
Location: Onterrible
Posts: 7,898
Received 447 Likes on 243 Posts
Default

Originally Posted by Bill Verburg
yeah but some of us like the n/b and will live w/ some compromises
heresy
Old 03-04-2011, 05:19 PM
  #40  
Bill Verburg
Addict
Rennlist Member

 
Bill Verburg's Avatar
 
Join Date: May 2001
Posts: 12,254
Received 512 Likes on 352 Posts
Default

Originally Posted by jdistefa
heresy
besides, I have a hard enough time getting the car on the trailer as it is
Old 03-04-2011, 05:21 PM
  #41  
trophy
Race Car
 
trophy's Avatar
 
Join Date: Nov 2005
Location: Calgary...Under my car... :)
Posts: 3,918
Received 9 Likes on 9 Posts
Default

Originally Posted by Bill Verburg
Yes, I'm switching to 8.5"s w/ either 235/40 or 245/35 for the front, I had 9"s but didn't like the fit.

Please post pics and let us know how the 255/ works out. Seems kind of too big to me but what do I know
Originally Posted by jungleboy

Steve - 9"/255s on a light set of wheels sound like damn good solution
When I was running 17" wheels I was running 255 up front and 275 in the rear, the front end grip was amazing, turn in was almost instantaneous the car just reacted beautifully to any steering input.

I will be running 255/35 on the front and 285/30 on the rear. As soon as I get the wheels rebuilt and the rubber arrives I will post pics.....
Old 03-04-2011, 05:49 PM
  #42  
Spartan
Three Wheelin'
 
Spartan's Avatar
 
Join Date: Oct 2007
Location: Chicago IL
Posts: 1,469
Likes: 0
Received 3 Likes on 2 Posts
Default

Originally Posted by trophy
When I was running 17" wheels I was running 255 up front and 275 in the rear, the front end grip was amazing, turn in was almost instantaneous the car just reacted beautifully to any steering input.

I will be running 255/35 on the front and 285/30 on the rear. As soon as I get the wheels rebuilt and the rubber arrives I will post pics.....
Agree the extra rubber makes a big difference

I can't live without my 285 front and 335 rears Sadly this requires a few "modifications "
Old 03-04-2011, 05:54 PM
  #43  
trophy
Race Car
 
trophy's Avatar
 
Join Date: Nov 2005
Location: Calgary...Under my car... :)
Posts: 3,918
Received 9 Likes on 9 Posts
Default

Spartan, I didn't realize you car had been modified
Old 03-04-2011, 06:06 PM
  #44  
Spartan
Three Wheelin'
 
Spartan's Avatar
 
Join Date: Oct 2007
Location: Chicago IL
Posts: 1,469
Likes: 0
Received 3 Likes on 2 Posts
Default

Originally Posted by trophy
Spartan, I didn't realize you car had been modified
lol

Is winter over yet? Can't wait to get it out of hibernation and start tinkering again.

Stupid salty roads
Old 03-04-2011, 06:17 PM
  #45  
trophy
Race Car
 
trophy's Avatar
 
Join Date: Nov 2005
Location: Calgary...Under my car... :)
Posts: 3,918
Received 9 Likes on 9 Posts
Default

Don't even get me started, it has been below -20c for the last 2 weeks........

To the OP, Rennline just announced a deal on all of their monoball links, replacing Camber, KT and Toe for $1150.... pretty good deal.


Quick Reply: Pros/Cons of Locking Out Kinematic Toe



All times are GMT -3. The time now is 11:21 AM.