Assume a Lotus Elan with the following:chimpvalet wrote: ↑Sun Dec 27, 2020 1:28 pm I did a lot of track time in a warmed over Lotus Elan with 50/50 static distribution and braking balanced approximately 65/35, as per stock. To be fair it could have used more braking overall, given substantially increased tire grip, but never found an issue with fore/aft balance either on track or street.
Overall weight (assumed to be fully loaded) = 1517 lbs
Wheel base = 84 in
CGH = 16 in
Weight distribution = 50/50%
Tire/road Mu = 1.28 max
Under braking at tire maximum grip;
the front tires will need a force of of 1443 lbs
the rear tires will need a force of 497 lbs, (left and right combined).
Total required brake force is 1940 lbs.
The required brake bias: front 74.4%, rear 26.6%.
A bias of 65/35 will cause a rear tire lockup while attempting to reach
maximum vehicle braking force.
How did you measure the brake bias? What is the tire grip limit Mu?