Originally Posted by fishEH
The rears suck ass. The pad design is terrible and they do very little. Throw some 4 piston calipers with pinned pads back there and an adjustable proportioning valve and you'd be in business. Not sure larger brakes are really needed with the LS conversion though. Your brakes don't care if you're doing 60 with a RV8 or an LS.
^^^^ This ^^^^
In my opinion. (note it's just an opinion, no expert) big brakes are for bringing large engines with 4 wheels and a seat down from 200mph.
They are designed for constant braking before curves. They allow for larger pad friction contact and also to dissipate heat better.
I have Stoptech slotted rotors on both my Rovers. Stock replacement drop in, no modifications. I don't take the tollroad often, but when I do, I typically drive my RR north of 100mph. But I also don't encounter situations when I have to stand on the brakes. A mile before my exit I'm off the throttle.
I would never think of taking the Disco 1 up to those speeds. Too squirrelly. Therefore, to take a Defender up to those speeds to need those brakes just seems a little crazy to me.