Will 221 pound weight reduction make a difference on a track??
03-08-2006, 03:50 PM
#32
AudiWorld Super User
Join Date: Dec 2003
Posts: 7,152
Likes: 0
Received 0 Likes
on
0 Posts
Nop.
Ok, to picture it in your head, why don't you think in extremes.
Let's say the car had 99% of the weight on the front and only 1% on the rear. Would the car now understeer more or oversteer more?
The answer is understeer. The front tyre would be taking all of the load. They wouldn't be working very efficiently at all.
Granted, there would be almost no weight on the rear tyres. But there would also be very little mass pushing the back of the car sideways. Those tyres would be operating *very* efficiently -- a lot more efficiently than the front tyres.
Why do you think we are constantly trying to move mass from the front of the car to the back so as to reduce understeer?
Stephen
Let's say the car had 99% of the weight on the front and only 1% on the rear. Would the car now understeer more or oversteer more?
The answer is understeer. The front tyre would be taking all of the load. They wouldn't be working very efficiently at all.
Granted, there would be almost no weight on the rear tyres. But there would also be very little mass pushing the back of the car sideways. Those tyres would be operating *very* efficiently -- a lot more efficiently than the front tyres.
Why do you think we are constantly trying to move mass from the front of the car to the back so as to reduce understeer?
Stephen
03-08-2006, 03:50 PM
#33
AudiWorld Member
Thread Starter
Join Date: Oct 2004
Posts: 193
Likes: 0
Received 0 Likes
on
0 Posts
Re: I'm curious as to what kind of passenger seat you have that weighs 83.6lbs (38Kgs)?
Is this the same seat as yours?
<img src="http://webzoom.freewebs.com/robandgwen/Rob%20S4/S4%20Recaro.jpg">
If so, I'm almost certain it was between 35 and 40Kg's
Euro spec model in Australia
Either way I could easily make the difference up with my:
lighter exhaust = not sure exactly maybe 5-10pounds
Brakes = 11 pounds (off the front)
Empty wahser fluid = 6 pounds(hah getting
desperate)
TOT: 22-27 pounds extra
<img src="http://webzoom.freewebs.com/robandgwen/Rob%20S4/S4%20Recaro.jpg">
If so, I'm almost certain it was between 35 and 40Kg's
Euro spec model in Australia
Either way I could easily make the difference up with my:
lighter exhaust = not sure exactly maybe 5-10pounds
Brakes = 11 pounds (off the front)
Empty wahser fluid = 6 pounds(hah getting
desperate)
TOT: 22-27 pounds extra
03-08-2006, 03:55 PM
#35
AudiWorld Super User
Join Date: Jul 2000
Posts: 3,989
Likes: 0
Received 0 Likes
on
0 Posts
you have no understanding of car dynamics
you don't take braking, suspension travel, tire contact patch, coefficient of friction and many other factors into account. But if that's what you want to believe, so be it.
Do you track/race?
Do you track/race?
03-08-2006, 04:05 PM
#38
AudiWorld Super User
i'm sure just the cr@ppy US seats. didn't think there was that much weight difference though.
