khooni

thanks all for taking the time to help me.

Apparently upon taking the dampers off, it was found that the springs were not sitting right on the perches by a little. It was strange that I didn't feel it at all during my last few track days.

it did understeer more on 1 side but not dramatically different. Anyway, the new corner weights are

LF 270 RF 269
LR 433 RR 436

1408kg total weight. 53kg lighter...Hmmm

alignment is as i would have wanted it

anyway, here's hoping it drives brilliantly when i pick it up.

amso3

OK, lighter by 53KG. Not possible ,Anaxagoras (500 - 428 BC) law of Physics.... Someone is screwing up your car

analogmike

Also not possible to have left and ride side weights the same with a driver in the seat. Time for a new shop.

McRae

+1

Change to someone that knows what he's doing. It's impossible to get a porker that good (without really f**king with the rideheights, which gives u a whole new problem driving it). Someone is clueless or lying.

jdistefa

something is rank in denmark, that's for sure

the best way to do this is a) find someone that knows what they're doing, and b) be directly involved in the process

GT2rainge

It may be that they are not on level ground when doing this.
I noticed when doing mine on the ramp that it makes a huge difference to the weights when the ramp is just sent up a little compared to when it was locked in place at the level point.
Maybe worth asking where they measure

lordpantsington

How much % give or take should you expect the bias towards the driver?

cup997laurent

Hi Mike,
As you suggested I ordered the fred Puhn's " how to make your car handle. ", and I have some questions:
- This way to set the wheels weights makes some times a big difference between the right and left front wheels, so on a 997 cup without ABS what is the max difference possible to keep good braking ?
- Do you care the diagonal weight or is it what it is ?
I have to read carefully this book......
Best regards, Laurent

analogmike

The diagonal weight method is a simpler way of doing the actual math (just get the two diagonals equal). It's a perfect calculation only on a car with 50% on each side, or 50/50 front rear. Otherwise it's a compromise, your computer has a calculator application on it so no excuse not to do the math.

Don't worry about good braking, if your right front is heavier after doing the calculations, it's because it needs to be to have the chassis balanced. ABS will help you, it can stop the lighter side from locking up. I have no ABS on my '73 and no braking problems either,

Good luck!