David S. Wallens
David S. Wallens Editorial Director
2/7/25 8:57 a.m.
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Womp, womp, womp, womp.

The Porsche needed new brakes.

We could feel it when coming to a stop–warped rotors, many would say.

But not quite. Technically “warped rotors” are not warped. They do not resemble potato chips.

Let’s quote what longtime brake engineer James W…

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wspohn
wspohn UltraDork
2/8/25 1:43 p.m.

Workd my way part way through university in a shop that turned rotors. True them up in the lather using a dial indicator and shave a bit off and end up in proper balance. Very few were actually warped, they just had worn areas.  I guess if you were driving a heavy load down Pike's Peak you might build up enough heat to actually warp one when you drove into the snow. 

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