Post by yellowshark on Sept 8, 2011 18:20:12 GMT
By “dynamic” weight I mean the weight that is changed on a wheel or axle due to the movement of the car.
I was muting posting this subject and then Reuben’s post iro my thread on weight distribution convinced me to...
“I made my car rear heavy when I first got my T3 to take away some of the super steering it has, but found in damp conditions outside that the rear would then oversteer on corner exit and the car would spin out, making the weight distribution more equal helped on corner exit. Which is weird because I would have expected the weight on teh rear to give constant understeer....”
“Bold” attribute added by me.
This is the type of point that caused me to measure the individual wheel weights on my car. I had been pondering over my wheelbase setup when I came across two statements in setup books that at least superficially were conflicting.
XRAY setup book
“By adjusting the wheelbase at one end of the car, you affect the traction at that end of the car. For example, by shortening the wheelbase at the rear of the car, you place more weight over the rear wheels (resulting in more rear traction.)”
Which sounds a good idea if suffering from oversteer. BUT
XXX-main setup book
“On common misconception is that if you have a car which is oversteering you should add more physical static weight to the rear of the car to get more traction in the rear. Although this will help with straightline acceleration it will actually make the car oversteer even more in the corners because the rear of the car will have more weight to change direction than the front of the car.”
Please discuss ;D
My "issue" was not added weights but the way I had shortened my wheel base, ie moving the rear axle.
For my part I have changed my wheel base setup for the weekend and keeping the same shortened wheel base I have moved both axles rearwards to move weight away from the rear axle towards the front axle - whereas my current setup had done the opposite. Providing it does not rain I will report back.
I was muting posting this subject and then Reuben’s post iro my thread on weight distribution convinced me to...
“I made my car rear heavy when I first got my T3 to take away some of the super steering it has, but found in damp conditions outside that the rear would then oversteer on corner exit and the car would spin out, making the weight distribution more equal helped on corner exit. Which is weird because I would have expected the weight on teh rear to give constant understeer....”
“Bold” attribute added by me.
This is the type of point that caused me to measure the individual wheel weights on my car. I had been pondering over my wheelbase setup when I came across two statements in setup books that at least superficially were conflicting.
XRAY setup book
“By adjusting the wheelbase at one end of the car, you affect the traction at that end of the car. For example, by shortening the wheelbase at the rear of the car, you place more weight over the rear wheels (resulting in more rear traction.)”
Which sounds a good idea if suffering from oversteer. BUT
XXX-main setup book
“On common misconception is that if you have a car which is oversteering you should add more physical static weight to the rear of the car to get more traction in the rear. Although this will help with straightline acceleration it will actually make the car oversteer even more in the corners because the rear of the car will have more weight to change direction than the front of the car.”
Please discuss ;D
My "issue" was not added weights but the way I had shortened my wheel base, ie moving the rear axle.
For my part I have changed my wheel base setup for the weekend and keeping the same shortened wheel base I have moved both axles rearwards to move weight away from the rear axle towards the front axle - whereas my current setup had done the opposite. Providing it does not rain I will report back.
