Race Car Tech Discuss anything related to road racing and auto X.

ITS caster, toe, camber...your thoughts

Old 05-20-07, 11:26 PM
  #1  
Senior Member
5 Year Member
Thread Starter
iTrader: (1)
 
Join Date: Oct 2006
Location: wisconsin
Posts: 519
Likes: 0
Received 0 Likes on 0 Posts
Question ITS caster, toe, camber...your thoughts

So, just want to see what other guys are running. Mine are stock specs with the exception of camber, -3.5* in the front and -1* in the rear....what do you folks perfer.

I am on hoosiers as well, '90 ITS.

Ludwig...any thoughts?
bean13 is offline  
Old 05-21-07, 06:36 AM
  #2  
www.lms-efi.com
iTrader: (27)
 
C. Ludwig's Avatar
 
Join Date: Mar 2001
Location: Floyds Knobs. IN
Posts: 5,106
Received 30 Likes on 23 Posts
You'll need to play with the settings and monitor your results with a tire pyrometer. You're in the ballpark. Something around -3 - 3.5 in front, -1 - 2 in the back. All the caster you can get while making them even. I always ran 1/8" total toe out in front and 0 toe in the rear. When I told Mike at ISC how the car was set up as far as alignment and shock/spring package he asked "How do you drive that thing?" Quite well actually, but your results may vary.

Make use of the tire probe. As you begin to use more of the tire you'll probably find that you'll need more camber to maintain even temps. Some tracks require different setups too.
C. Ludwig is offline  
Old 05-21-07, 09:57 AM
  #3  
Armchair engineer
iTrader: (2)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: http://www.k2rd.com
Posts: 24,588
Likes: 0
Received 123 Likes on 112 Posts
ours was closer to zero toe, but other wise about the same....
j9fd3s is offline  
Old 05-21-07, 05:02 PM
  #4  
Senior Member
5 Year Member
Thread Starter
iTrader: (1)
 
Join Date: Oct 2006
Location: wisconsin
Posts: 519
Likes: 0
Received 0 Likes on 0 Posts
max caster huh? Would you reccomend that for "baseline"?
bean13 is offline  
Old 05-21-07, 05:33 PM
  #5  
Armchair engineer
iTrader: (2)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: http://www.k2rd.com
Posts: 24,588
Likes: 0
Received 123 Likes on 112 Posts
actually paulie and i were talking about this the other night, we're thinking we had the car too low, and the geometry would have been better with a higher ride height.

any thoughts on that?
j9fd3s is offline  
Old 05-21-07, 07:03 PM
  #6  
www.lms-efi.com
iTrader: (27)
 
C. Ludwig's Avatar
 
Join Date: Mar 2001
Location: Floyds Knobs. IN
Posts: 5,106
Received 30 Likes on 23 Posts
Think we got 8* caster. It's a poor mans source of camber gain in turns. With the kingpin layed back the more you turn the wheel the more camber gain there is.

I think you're right on the ride height. I had some big problems when lowering the car too much. The rear was very funny about ride height. You can get it low enough to bottom the trailing arms on the tub. When you do that everything goes to hell. Also, in the front you'll run into bump steer problems when going seriously low. As it is the IT rules limit you to a specific ride height. Was it 5" at the rocker? That's really close to as low as you want to go. Maybe too low.
C. Ludwig is offline  
Old 05-22-07, 10:55 AM
  #7  
Armchair engineer
iTrader: (2)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: http://www.k2rd.com
Posts: 24,588
Likes: 0
Received 123 Likes on 112 Posts
Originally Posted by C. Ludwig View Post
Think we got 8* caster. It's a poor mans source of camber gain in turns. With the kingpin layed back the more you turn the wheel the more camber gain there is.

I think you're right on the ride height. I had some big problems when lowering the car too much. The rear was very funny about ride height. You can get it low enough to bottom the trailing arms on the tub. When you do that everything goes to hell. Also, in the front you'll run into bump steer problems when going seriously low. As it is the IT rules limit you to a specific ride height. Was it 5" at the rocker? That's really close to as low as you want to go. Maybe too low.
i remember measureing it, but in like 03.... i wanna say the race car was like 23" from the ground to the top of the wheel opening?

the drift car and street cars got setup higher, like 24.5", which isnt too far off stock
j9fd3s is offline  
Old 05-22-07, 12:37 PM
  #8  
Old Rotary Dog
10 Year Member
 
wrankin's Avatar
 
Join Date: Feb 2003
Location: Durham, NC
Posts: 1,461
Likes: 0
Received 2 Likes on 2 Posts
The 2007 GCR sets minimum ride height as 5" to the bottom of the rocker panel (not including the welded seam). This is with driver out.

-b
wrankin is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
renjiv2
3rd Generation Specific (1993-2002)
55
04-24-16 04:09 PM
vish86
Interior / Exterior / Audio
3
10-01-15 11:53 PM
2nd Generation Specific (1986-1992)
3
09-28-15 09:25 PM


Thread Tools
Search this Thread
Quick Reply: ITS caster, toe, camber...your thoughts


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: