Hey guys & girls, this thread would serve as an introduction to WP Pro and explain our products and our manufacturing techniques.

We started out as Winner Power in 1981, we are originally a second tier supplier for OEM brake components, mainly final machining for calipers, pads, and rotors, slowly we began to get into high performance parts, mainly pads and larger discs that utilize stock calipers.

Fast forward to early 1990, since we are all car enthusiasts at WP Pro, we started to notice some of the downside of most BBKs out there;

1) lack of daily drive ability, back then most multi-piston calipers use same size pistons, which is hard to modulate when you trying your bests to make a smooth stop with your in-laws in the back seat.

2) Most of them don't meet the performance they promised, back then, most BBKs used heavy casted alloy calipers that sometimes weight more than factory single-sliding-piston calipers, everyone understand weight = kills performance.

3) Reliability, even today, most BBK calipers out there don't use a heat shield, most people didn't dare to drive their car with BBKs thru out the year, due to the fear of seizing.

With those in heart, we began our design of our first 6-pot calipers, it contains one of the first sequential size pistons design, the sequential size pistons allow a linear braking force, which make it easy to live with, and we used forged T6-6061 to ensure strength and light weight, and we used titanium nitride treated backing plate to ensure reliability, with our goal to provide the best BBK available to public.

The BBK systems were first introduce in 1995, with sold as HP Racing, and they look like this:



we began racing in regional races, and we applied our experiences into our products, we went to SEMA in 1996, and we actually met up with StopTech's staff and exchange info, that's when they were only selling rotors and such.

Fast forward to early 2000's, we had began production on our 8pot calipers that was similar to our early 6pot calipers, but we know we have to improve our systems and components if we want to be the best.

First went under new design were the calipers, we still use T6-6061 cold forged aluminum, but this time, we use 5000tons forging process, while most use 1000 or 2000 tons, we change our pistons to stainless steel, here's a note on stainless steel pistons, they are lot more tougher under heat, where as most calipers use alloy pistons are prone to flex under extreme heat, hence the leaky calipers.

It took us a couple years to get it right, and you can see the difference here:

Factory single sliding piston caliper: 4.752kg


Factory 4piston caliper: 5.03kg


This is our L6 caliper, the pad surface is 10% larger than comparable large 4-piston caliper that are on the market today: 1.822kg


Our 8pot caliper, the pad surface is 10% larger than large 6-piston caliper that are on the market, it offer quite bit of stopping force : 2.564kg


Our absolute bad boy EVO12, this is currently in its 2nd generation, the only 12piston caliper out there have been race-tested, compare to other similar 12 piston calipers, you can see we don't use retaining bolt as structural support: 4.046kg

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After updating our caliper lines, we began to update on our related components, first started out with our brake lines, we don't use other companies brake lines simply we want to ensure only the best goes out of our doors, after assembly, we test each and every line to 5000psi.

Then next thing we began to update design was our rotors, most company's 2pcs rotors use cast alloy hats, while there's nothing wrong with that, we know we can do better, we use the same material and technique that we use for our calipers on our rotor hats, so yes, our rotor hats are made from T6-6061 5000tons cold forged aluminum.

While there are great debates regarding x-drilled vs slotted, from our testing, we know x-drilled is lighter and not necessary significant weaker, because our x-drilled rotors are drilled regarding to where the vanes are, not to mention each hole is chamfered to prevent sharp edges, in physics, sharp edges is where usually heat build up and cause x-drilled rotors to crack, by chamfering the hole, there is no sharp edges and drastically reduce the chance of cracking.

As we've applied all those changes, there are companies out there slowly to recognize our effort, at first we were contracted by Hamann to produce their brake kits for various applications, but later on they changed supplier after management changeover.

As of now, we have Oettinger use our brakes as their own, which they've obtained TUV approval for the kits they currently sell, BSR in Sweden employ our kits as well, where we currently provide our brake systems to Volkswagen Racing as well











here's BSR with their record breaking Focus.





here are some photos from Oettinger.

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Hey sam!

Nice to see a vendor like this on our forum. I e-mailed you a bit ago regarding calipers for my S60r...

Soon soon.

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Wow. Wow. Wow.

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Hey, I actually got a Volvo as a project as well.

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Some people were asking me, why are your calipers seem bit smaller and your rotor hats are larger than others?

Here are some answers.

Caliper sizes, just because the bigger the caliper looks doesn't mean its better, our L6 is same size as the brand A/B/S's 4 piston calipers, it actually uses bigger pads, our principle is performance first, then looks second, by minimize un-used space on the exterior of the caliper, we were able to reduce weight, and cover less rotor surface that is needed for cooling down, and I can garanteed you that they use smaller pads than we do.

Same goes for rest of the caliper, the EVO 12 LITERALLY has 4x up to 6x pad surface area compare to stock, its no small caliper by any mean, but the same principle applies here.

For the rotor hats, the smaller rotor hat is, the heavier it is, cause our rotor hats uses the same T6061 cold forged material as our caliper, we want to minimize the moment of inertia, so instead of using a tiny rotor hat that may make the rotor look bigger than it is, we don't want our BBK to rob away the horsepower, so we say, larger rotor hats = less overall weight = better stopping.

Regards

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I heard you guys need somebody to test some brakes in a 03 Suby Wagon!

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If you buy them , but don't you already have the 4pot brakes?

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waka waka waka! Yeah I do but I only have 2 pot rears

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to be honest, Subaru makes pretty good calipers on their own, the only downside is weight, since they are cast.

For something like your car, I'd assume you are using 17" wheels, or max 18", 336mm with L6 is pretty much same size and offers better performance, but the cost is probably more than getting spare pads and lines.

hit me up on my email so I can explain more.

sam@wpprobrakes.com

Regards

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