944 alignment settings

Porsche Technical related discussions.

944 alignment settings

Postby lrayner on Mon Jun 26, 2006 9:21 pm

I just don't have enough time to track down new wheels for my 944, I don't think the existing tires are safe, so I am getting 225/50/15 yokohama's for the stock wheels and hope to align it before Saturday. What settings would you recommend for a four wheel alignment-- currently all stock suspension- use to be mostly AX. Thanks, Leigh
Leigh Rayner
2002 Boxster S
1995 993
lrayner
Time Trialer
 
Posts: 294
Joined: Wed Jun 07, 2006 10:29 am
Location: North County

Postby harnishclan on Tue Jun 27, 2006 1:11 am

Take a look at the tech spec page of www.944spec.com There is a pretty good article on how Joe Paluch (a driver in that series) sets up his car, including alignment settings. Probably can not get as much neg camber without using camber plates though. I can tell you from experience that factory settings with an extra degree neg camber in the front is a pretty dramatically oversteering car!
Brian Harnish GP #815
Current: 08 Cayman S, 87 944 S, 87 944.
Past: 81 911SC, 83 944, 86 944, 82 924T, 97 993, 84 944, 87 944, 83 944, 04 Cayenne S, 81 924T, 01 Boxster S.
User avatar
harnishclan
Time Trialer
 
Posts: 343
Joined: Fri Jul 09, 2004 10:10 am
Location: Lubbock, TX

Postby Dan Chambers on Tue Jun 27, 2006 4:10 pm

Leigh:

Depending on your ride-height and other factors (spring rates, torsion bar diameter, shock's capabilities, etc) you can run a -2.0 to -2.5 front camber and -2.0 rear camber for very good AX handling on fairly stock springs/torsion bars and street tires. New shocks will also help. You can try a more agressive front setting (-3.0 is about as high as you can go negative without camber plates ... which are points), but without knowing what front springs and what ride height you're running, it's hard to recommend an optimum setting on your 944. I'd start with -2.0 camber and move negative if you still have understeer.

Also, if your going to primarily track the car, and use great caution on the highway, you can toe-out your front wheels (about 1 to 2 mm from 0) and toe-in your rear wheels (about 1 to 1.5 mm from 0). This combination (neg camber and toe-out in front) will help reduce the understeer many 944's have. Be careful. 944's can react to such settings with a surprising amount of over-steer, and that really shaves off speed in an under-powered car.

Just my 2 cents.

Good luck!
Dan Chambers
"It's just a "well prepared" street car ... or a very, very well-mannered track car." :burnout:
1983 SC #91 3.6L, "Black Pearl" Livery
1987 944 (gone but not forgotten)
User avatar
Dan Chambers
Pro Racer
 
Posts: 1761
Joined: Wed Jun 30, 2004 3:57 pm
Location: San Diego


Return to Technical

Who is online

Users browsing this forum: No registered users and 209 guests