Notices
993 Forum 1995-1998

Corner balance....necessary ?

Thread Tools
 
Search this Thread
 
Old 08-05-2012, 08:44 PM
  #1  
Meatball964
Rennlist Member
Thread Starter
 
Meatball964's Avatar
 
Join Date: Feb 2005
Location: Wilton, CT
Posts: 673
Received 18 Likes on 12 Posts
Default Corner balance....necessary ?

Recently replaced my tires (MPSS's) and thought it would be a good idea to get a 4 wheel alignment.
It's been 2 years since the last one. Previous tire wear was fairly even & no complaints w/handling.
Car sees "spirited" driving in good weather (not a DD) & about 3 or 4 track days per year (green group).
Is corner balancing needed or is this just a 2-3 labor hour money grab ?
Old 08-05-2012, 08:57 PM
  #2  
No HTwo O
Banned
 
No HTwo O's Avatar
 
Join Date: May 2008
Location: Arlington Heights, IL
Posts: 7,299
Likes: 0
Received 10 Likes on 8 Posts
Default

You should get that car aligned by a quality shop, and one who understand kinematic toe. Especially after having new tires installed. $250ish to protect your $+1,800 tire investment makes sense to me.

As for corner balancing, do you even have an adjustable suspension like PSS9's or PSS10's?
Old 08-05-2012, 09:16 PM
  #3  
Meatball964
Rennlist Member
Thread Starter
 
Meatball964's Avatar
 
Join Date: Feb 2005
Location: Wilton, CT
Posts: 673
Received 18 Likes on 12 Posts
Default

Alignment already scheduled (quality racing Porsche shop) so that's not an issue.
Corner balancing (putting the car on scales) as I understand it, would factor in my weight, level of fuel, weight of instructor, type of track layout etc....should I pass on this given my type of driving ?

BTW, I have Bilstein HD/M030
Old 08-05-2012, 10:47 PM
  #4  
FlatSix911
Nordschleife Master
 
FlatSix911's Avatar
 
Join Date: Jun 2003
Location: Los Altos, CA
Posts: 5,308
Received 17 Likes on 14 Posts
Default

I have the same suspension setup and did not notice a difference after corner balancing ... YMMV
Old 08-05-2012, 11:02 PM
  #5  
NP993
Rennlist Member
 
NP993's Avatar
 
Join Date: May 2001
Posts: 3,052
Likes: 0
Received 4 Likes on 4 Posts
Default

Ask you shop what they'd charge just to check the corner weights....the labor-intensive part is making the adjustments, which in your case isn't necessary unless the weights are very far off, which they're probably not. But probably worth it for the peace of mind. Even if they have to set up the scales, it's 10-20 mins of labor....
Old 08-05-2012, 11:36 PM
  #6  
nile13
Addict
Rennlist Member
 
nile13's Avatar
 
Join Date: Jan 2004
Location: Boston, MA
Posts: 8,529
Received 90 Likes on 57 Posts
Default

Terms like coilovers, corner balancing and all that jazz sound really cool and give you instant cred. <Because race car" as kids say nowadays.

The reality is, for your application you have zero need in corner balancing in my opinion.
Old 08-06-2012, 12:23 AM
  #7  
chaoscreature
Burning Brakes
 
chaoscreature's Avatar
 
Join Date: Jul 2009
Location: Vista, CA
Posts: 1,064
Likes: 0
Received 3 Likes on 3 Posts
Default

Agree with Nile 13.
If your car was very weight jacked you would feel it and would wonder why your car felt awkward.
Old 08-06-2012, 12:45 AM
  #8  
Meatball964
Rennlist Member
Thread Starter
 
Meatball964's Avatar
 
Join Date: Feb 2005
Location: Wilton, CT
Posts: 673
Received 18 Likes on 12 Posts
Default

These cars are very alignment sensitive from what I've read.
I'm not expecting any serious handling transformation (unless I go with a slightly more aggressive align than OEM). Go too agressive & risk accel tire wear, bump steer, trammeling or poor wet weather traction...albeit better track handling.
At any rate, sounds like the general opinion is to pass on the corner balance.
Old 08-06-2012, 05:39 AM
  #9  
Neil Perry
Racer
 
Neil Perry's Avatar
 
Join Date: Jul 2010
Location: Sydney Australia
Posts: 400
Likes: 0
Received 0 Likes on 0 Posts
Default

I fitted PSS10's to my car and then had a corner balance done.
It was the best money I have spent on my car, the corner balance transformed my car into a completely different beast.
It just stuck to the road from the day I picked it up.
Old 08-06-2012, 09:37 AM
  #10  
mjsporsche
Rennlist Member
 
mjsporsche's Avatar
 
Join Date: Apr 2004
Location: South Florida & Central NJ
Posts: 2,603
Received 140 Likes on 90 Posts
Default

Of the several 911s I have owned, one was corner balanced a month or so before my purchase. Could not tell the difference. I am not a track person who needs every possible advantage.

Save your money!

Mark
Old 08-06-2012, 09:55 AM
  #11  
solomonschris
Burning Brakes
 
solomonschris's Avatar
 
Join Date: Jan 2005
Location: Southern Maryland
Posts: 1,037
Likes: 0
Received 2 Likes on 2 Posts
Default

Anyone who would stick a metal knife into a 110v receptacle to see what would happen, should surely try a proper corner balance for the same reason. The result will be way less dramatic but more satisfying, and at least then you'll know.
Old 08-06-2012, 03:03 PM
  #12  
Kika
Nordschleife Master
 
Kika's Avatar
 
Join Date: Feb 2007
Location: Torrance, CA USA
Posts: 5,631
Received 79 Likes on 60 Posts
Default

I had my car corner balanced last year at West End Alignment.

I didn't think the car handled poorly, but I had Walrod bushing and new tires installed, so I went ahead and had it done. The difference was definitely noticeable, for the better.
Old 08-06-2012, 03:20 PM
  #13  
Mark in Baltimore
Rennlist Member
 
Mark in Baltimore's Avatar
 
Join Date: May 2002
Location: Baltimore, MD
Posts: 23,303
Received 496 Likes on 320 Posts
Default

Since you track your car, I think corner balancing is a really good idea. However, if you're doing three or four days a year, then that sounds like two events, yes? You can probably get away not with corner balancing.

The answer would also depend less on your run group but more on your past skill sets and your current driving ability. Did you ever race snowmobiles, ski, surf or do anything else that required exceptional coordination, balance and eye/hand coordination? If so, then you'll probably push your car harder than a typical green group driver and may be more likely to notice a suspension imbalance where the car oversteers in one direction but understeers in the other.


Originally Posted by Neil Perry
I fitted PSS10's to my car and then had a corner balance done.
It was the best money I have spent on my car, the corner balance transformed my car into a completely different beast.
It just stuck to the road from the day I picked it up.
I'm going to guess that there were other factors at play. Having a car that is corner balanced versus not should have nothing to do with road adhesion. If this were the case, cars would be careening off the road like a moose sliding on greased owl potty since the vast majority of cars have never been corner balanced.
Old 08-06-2012, 03:30 PM
  #14  
Meatball964
Rennlist Member
Thread Starter
 
Meatball964's Avatar
 
Join Date: Feb 2005
Location: Wilton, CT
Posts: 673
Received 18 Likes on 12 Posts
Default

Seems most that had it done also had suspension/bushings/sways at the same time so naturally handling improved.....not nessisarily as result of the corner balance.

BTW that's not me in the pic wise guy. Stole it off the interwebz (thought it was funny).....
Old 08-06-2012, 03:48 PM
  #15  
Meatball964
Rennlist Member
Thread Starter
 
Meatball964's Avatar
 
Join Date: Feb 2005
Location: Wilton, CT
Posts: 673
Received 18 Likes on 12 Posts
Default

Thanks Mark, well put.
This is my 1st 911 so hard to say what "unusual behavior" is but getting a better feel each drive (especially on the track).
Coming up on my 4th track day ever (2 last year / 5 planned this year). I feel my learning curve increase exponentially each time....fun stuff. At this stage I may not have developed enough feel for what a corner balance would provide....gettin there though I hope.


Quick Reply: Corner balance....necessary ?



All times are GMT -3. The time now is 03:07 AM.