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Home of the Whopper
 
Join Date: Mar 2001
Location: Rocky Top, TN
Posts: 6,810
Garage
Corner balance numbers

In preparation for an upcoming DE event, I wanted to corner balance my 73.5T 3.0.

This is what I had initially:



After turning the RF adjuster 1 turn cw, I ended up with this:



I've never done a corner balance before so I would appreciate any input. Any many thanks to Mr. Ferch and Mr. Fitzpatrick for all the help they've already provided with previous posts and the handy calculator.

__________________
1968 912 coupe
1971 911E Targa rustbucket
1972 914 1.7
1987 924S
Old 02-10-2007, 09:11 AM
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Home of the Whopper
 
Join Date: Mar 2001
Location: Rocky Top, TN
Posts: 6,810
Garage
I put weights in the driver's seat. May as well use them for something.

From what I read so far, the numbers looked good to me too. But I am finding it hard to believe all it took was one turn of an adjuster and the car is corner balanced.

For reference, using 225/50/15's, the fender heights are:

LF 24 3/8" RF 24 5/8"
LR 24 1/8" RR 24 3/8"
__________________
1968 912 coupe
1971 911E Targa rustbucket
1972 914 1.7
1987 924S
Old 02-10-2007, 10:43 AM
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Tyson Schmidt's Avatar
 
Join Date: Nov 2001
Location: Burbank, CA
Posts: 4,580
Were your tire pressures all even? Also need to bounce the suspension and roll the car forward and back to account for stiction in the suspension.

BTW, many race technicians set the car up with equal fronts, ignoring the diagonals.

So if you were setting it up that way, it was better before.

Of course, on pro racecars, they can get the fronts even, and the cross-weights pretty close to perfect as well since the cars are optimized WRT weight distribution.

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'69 911E coupe' RSR clone-in-progress (retired 911-Spec racer)
'72 911T Targa MFI 2.4E spec(Formerly "Scruffy")
2004 GT3
Old 02-10-2007, 03:17 PM
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