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-   -   Pulls left, CB experts---help! (http://forums.pelicanparts.com/porsche-911-technical-forum/117664-pulls-left-cb-experts-help.html)

ckelly 07-05-2003 04:34 PM

Pulls left, CB experts---help!
 
Okay, I posted a while back about a left pull, everyone seems to think corner balance was my problem. I got my Ruggles scales back and here's some numbers. Drivers weight in the car, 1/4 tank o gas (I know, 1/2 is better).
I'm pretty confused on what way to go, some say diagonal lbs, diagonal ratios, some say side/side ratios. I only know at this point that I have a left hand pull, oversteer one way, understeer the other.

HELP!! :confused: :confused: :confused:

LF 528
RF 668
LR 1080
RR 796

Doug E 07-05-2003 04:55 PM

I had a right pull and after a front suspension refresh (bushings and ball joints) plus an alignment the problem was solved. You might want to look at those as possibilities as well.

ckelly 07-05-2003 05:04 PM

Bushings are good, ball joints seem tight, new tie rods, etc. Fresh alignment too, upgraded torsion bars Fr and Rr and after the alignment (specs looked good), noticed the pull. No pull before the torsion bar upgrade and alignment.

makaio 07-05-2003 05:23 PM

I'm not as savy as some on the board, but looking at the numbers you posted sure makes me think your car needs to be re-balanced.

Here's what Thom's calculator says about your wieghts:
http://forums.pelicanparts.com/uploa...ight chart.jpg

makaio 07-05-2003 05:25 PM

let me try again:
Ideal Corner Weights
Left Right
Front 626 569
Rear 981 894

Measured Weight Distribution
Total Weight 3072
Front-to-Rear
Front 1196 38.93 %
Rear 1876 61.07 %
Side-to-Side
Left 1608 52.34 %
Right 1464 47.66 %
Diagonal Weight
Left Front / Right Rear 1324
Right Front / Left Rear 1748

I used the wieghts you gave. Click the link if you want to try yourself:

www.vintagebus.com

ckelly 07-05-2003 05:32 PM

Yeah, I did that, however, would the specs I listed cause the left pull??

If I rebalance, do I balance for diagonal ratios? or LR ratios?

makaio 07-05-2003 05:35 PM

Shoot for what the ideal weights say.


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