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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Now you are cooking.

The battery is discretionary weight and using it to best balance the car as you note is what I am trying to convey.

Using my stock 85 as an example assuming I am adjusted to a 50/50 diagonal balance as most suggest my numbers with a driver in a mostly stock 85 911 were:

..............left / right =total
Front:......636 550 =1186
Rear:.......897 810 =1707
Total:.....1530 1360 =2893 lbs

The left hand side with driver weighs 1530 and the right weighs 1360 or 170 lbs less. This could effect threshold braking in the form of o premature wheel lock up.

If so, where from right to left should the battery go?


How about front to rear weighting?

My car was 1186lbs front and 1707 rear. This is 44% more weight to be supported by the rear tires than the fronts (a 930 is more like 50% more rear weight to the rear tires).

However, assuming a stock 930 with 205 and 245's that simplistically comes out to 20% more rear tire trying to hold the 44-50% more weight.

So where front to rear should the battery go?

Half way between the front and rear tires where it's pollar weight is minimized?

No. Probably best if it is as far from the rear wheels as possible.

Last, where is it best to have the weight on a car. As low as possible or higher in the car?

Thus, moving the battery as far to the right, as far front, and keeping it as low as possable would probably be more ideal if it is going to be moved.

Last edited by 911st; 10-04-2010 at 05:01 PM..
Old 10-04-2010, 04:54 PM
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