[PrematureApex]

Originally Posted by vstolpner

Hope your wedding planning is going well. Just had a thought that it would be great to see the stopping distance improvement before and after the upgrade.

I don't think one should expect any stopping distance improvement, at least when talking about single hard stop, where brake fade isn't an issue.

Want shorter stopping distance? Get stickier tires.

The stock brakes are strong enough to engage the ABS, at least on the stock tires. So what does that mean? It means you already have more brake torque than you do available traction. That means adding more stopping power isn't going to gain you anything. Big brake kits, for example, don't always actually increase brake torque (or at least not a huge amount). They do however add heat capacity. So when you're tracking, you fend off brake fade longer.

Dare I say it, this "upgrade" may actually marginally INCREASE stopping distances, as you've increased your unsprung weight and rotating mass at the wheels.

Again, on a stock car in a single-stop scenario, available traction is the limiting factor in stopping distances, not braking power.

Where this upgrade will shine is under heavy, repeated use (like on a track)where the added thermal capacity will keep stopping distances more consistent.

1) The brakes don't stop the vehicle - the tires do. The brakes slow the rotation of the wheels and tires. This means that braking distance measured on a single stop from a highway legal speed or higher is almost totally dependent upon the stopping ability of the tires in use - which, in the case of aftermarket advertising, may or may not be the ones originally fitted to the car by the OE manufacturer.

http://www.stoptech.com/technical-su...rade-selection