Quote:
Originally Posted by 08G8V8
I've got the gen1 CTS-V calipers on the front of my G8. Now that we have a solution for keeping the ebrake, I'm looking to complete the installation with the gen1 CTS-V calipers on the rear.
Both gen1 and gen2 CTS-V models had the rear calipers mounted on the forward side of the rotor. Both also had the crossover tube on the lower side of the caliper, which based on what Mike said, would be on the LARGER piston.
I'm trying to grasp the design rational of the larger vs smaller pistons, and position relative to the rotor. Is the mounting of the CTS caliper on the "leading edge" of the rotor considered "leading edge" because it is "forward" of the axle, vs the Camaro on the "trailing edge" because it is "aft" of the axle?
I was thinking the "leading edge" of the rotor would be the first portion of the rotor to enter the caliper, hitting the pad first.
Could you please elaborate on this for me? THANKS!
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You are correct.
The leading edge is in reference to the rotation of the rotor to the caliper when driving forward. We'll call the smaller Piston #1. When the Caliper is mounted on the front side of the rotor Piston #1 is on top and the cross-over tube on the bottom. To keep the leading edge orientation the same when mounted on the backside of the leading edge Piston #1 is on the bottom. That is why the cross-over tube is moved.