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Author Topic:   Polar Moment
Kangakountry
Dirt Roller

Total posts: 14
posted May 08, 2005 01:21 AM  
Hi, just wondering if anyone can tell me how you calculatle the polar moment in a modified, I asked someone about spring rates and shocks for my car once, and they said they would need to know the polar moment of my car (plus other things too)......is this right, is this (polar moment) something that you need to know about when tuning the components to suit your chassis?

Any help here would greatly welcome, Thanks.

orange2mod
Dirt Maniac

Total posts: 113
posted May 08, 2005 08:48 AM  
P.M. me your e-mail address. I found an article on it but don't know how to post it on here.

zeroracing
Dirt Forum Champ
Total posts: 1875
posted May 08, 2005 10:15 AM  
you will not be able to find the true polar moment of your car, you might be able to get a rough idea, but not the true moment. too many variables, like mud onthe car, every bolt, every tube, stuff like that.

#13 mod
Dirt Full Roller

Total posts: 72
posted May 12, 2005 06:00 PM  
ok, polar moment in any dirt car would be a loss of time that could be spent else where on your car. dont' get me wrong, it's great to see people think about more than horsepower and tire pressure. but like zero way to many changes are in play here. the main thing to spend your efforts on, in my mind, are know how to change to a changing track. if you can learn to predict what a track is going to be like, and this can be done, by the end of the night you will have yourself in a position to win on any given night. matching a race track on any given night out weights all other decisions.

zeroracing
Dirt Forum Champ
Total posts: 1875
posted May 12, 2005 07:45 PM  
Well I should rephrase mine, you will not be able to find a ### value for it. keeping the polar moment to a min, will help the car turn faster, use less force to turn the car and therefore leave more for forward movement. but mathmatically you will not be able to find the number value on your car.

Kangakountry
Dirt Roller

Total posts: 14
posted May 12, 2005 11:09 PM  
Ok, no worries, thanks for your help on this guys.

sidebiteu259
Dirt Full Roller

Total posts: 56
posted May 18, 2005 05:49 PM  
Can any of you define what a polar moment arm is, Or are you just simlply guessing.

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