RacingBrake MKV R32 2 Piece Front Rotor Review

[BetaOp9]

Hey BetaOp9...guess what! I just got my STOPTECH street performance pads and SS lines!

I did not get my handjob yet, I called them and told them that you said that I was due one but the chic on the phone was not having it. I said pretty please...

I need you to quote what I originally said, cause I don't remember but I'm sure it was awesome.

[Ryan E.]

Nice, you'll be happy with the quality. Let us know your thoughts when they arrive.

just orderd mine today , caint wait

He's the man, I love picking his brain.

I was just on the phone with Warren @ RacingBrake for over an hour talking brakes. I gotta say he really knows his brakes. They are definitely a good company company to support.

[nkgneto]

BBK from Stoptech

Cost: $2,495

Installation requires 12.5mm Spacer

This kit uses standard 355x32 disc - Only 10mm larger than stock's 345 in diameter.

But the disc friction width is 50mm, 14mm smaller than stock's 64mm in pad height - This is a huge difference-

Brake pad comparison - Based on Hawk HPS:

Pad used in ST-40: Cost $121.51
Pad for R32 stock: Cost $104.74

Do your own math and figure out is this a kit worth $3,000 for a down grade set up and deviates from stock by paying more on brake pad replacement.

Compare to RB two piece rotors:

1. Direct bolt on - No space to buy and install
2. Retain stock set up - Save on maintenance cost
3. Cost only 1/4 of BBK.
4. Performance - RB two piece rotors with stock calipers are what a smart buyer's choice.

Would you like to show us your calculations on friction surface difference between their 14" BBK and your R32 stock?

Here are the Computer generated Results

[URL="http://racingbrake.com/v/images/vw/forum/r32.jpg"]

[mr2guru]

When are these badboys going to start to ship... I have the fever, and the only prescription is more, er less, rotor....

[Ryan E.]

Just got word the production rotors are ready for pickup, woot! Just in time for Fastivus!

When are these badboys going to start to ship... I have the fever, and the only prescription is more, er less, rotor....

[willlangford]

Just got word the production rotors are ready for pickup, woot! Just in time for Fastivus!

Woot!

Install party this weekend?

[Ryan E.]

Maybe next, I just ordered Hawk HP+, gonna try those and see how they compare to the EBC Yellowstuff I've been using...

Woot!

Install party this weekend?

[ywang98]

Got notified too. I'll probably pick them up tomorrow. I want to see if they can also sell me a set of pads.

[Ryan E.]

I just ordered some Hawk HP+ from them.

Got notified too. I'll probably pick them up tomorrow. I want to see if they can also sell me a set of pads.

[infiniteecho]

Here are the Computer generated Results

[URL="http://racingbrake.com/v/images/vw/forum/r32.jpg"]

LOL @ your bs claims.

Rotors look good though.

[cleanA3]

Got my email , mine shipped today .

[BetaOp9]

LOL @ your bs claims.

Rotors look good though.

Explain why you think this is bs. :-)

[mr2guru]

Explain why you think this is bs. :-)

He has the Stoptech's. Of course he's going to be a lil defensive.

[infiniteecho]

Explain why you think this is bs. :-)

He has the Stoptech's. Of course he's going to be a lil defensive.

That math is not right nor does it explain how there is actually more brake torque applied with the stoptech setup.

Not to mention there is a ton of hard data from the vbox setup that shows improved stopping.

There is nothing more than some weight reduction and some increased heat capacity for this RB setup. While that is all well and good, there is no other benefits to this 'upgrade' that will actually improve stopping distance, the ability to modulate the brakes, improve pedal feel or anything else related to a big brake upgrade.

Has nothing to do with being defensive. Wrong information is wrong.

[mr2guru]

That math is not right nor does it explain how there is actually more brake torque applied with the stoptech setup.

Not to mention there is a ton of hard data from the vbox setup that shows improved stopping.

There is nothing more than some weight reduction and some increased heat capacity for this RB setup. While that is all well and good, there is no other benefits to this 'upgrade' that will actually improve stopping distance, the ability to modulate the brakes, improve pedal feel or anything else related to a big brake upgrade.

Has nothing to do with being defensive. Wrong information is wrong.

How is the math not correct? Swiping area, perimeter? Math seems correct to me. How YOU interpet the info is up to you. They didn't mention anything about torque, which you're right... is greater with the larger diameter. But so is angular momentum, a downside to bigger dia brakes.

The RB setup does what it sets out to do for the price point. It offers dramaticallly cooler brakes, reduced unsprung weight, and shorter REPEATED stops due to the cooler temps. As with most big brake kits, they usually offer no decreased stopping distances on the first stop with street tires. Your tires determine your initial stopping distances. Pads and rotor temperature are what determine subsequent stop distances.

Much of this is moot when you're running more tire than your stock brakes can lock up on the first stop, like racing slicks.

Brake feel, caliper flex, applied brake torque are all well and good but the single biggest benefit to a BBK is the ability to dissipate heat, which RB does at a fraction of the cost of a true BBK.

[LWNY]

How is the math not correct? Swiping area, perimeter? Math seems correct to me. How YOU interpet the info is up to you. They didn't mention anything about torque, which you're right... is greater with the larger diameter. But so is angular momentum, a downside to bigger dia brakes

Isn't there a formula with applicable torque at a certain distance from center, applied throughout the whole area. I remember doing that kind of stuff all the time back in college with calculus, integrals and derivatives.

[infiniteecho]

How is the math not correct? Swiping area, perimeter? Math seems correct to me. How YOU interpet the info is up to you. They didn't mention anything about torque, which you're right... is greater with the larger diameter. But so is angular momentum, a downside to bigger dia brakes.

The RB setup does what it sets out to do for the price point. It offers dramaticallly cooler brakes, reduced unsprung weight, and shorter REPEATED stops due to the cooler temps. As with most big brake kits, they usually offer no decreased stopping distances on the first stop with street tires. Your tires determine your initial stopping distances. Pads and rotor temperature are what determine subsequent stop distances.

Much of this is moot when you're running more tire than your stock brakes can lock up on the first stop, like racing slicks.

Brake feel, caliper flex, applied brake torque are all well and good but the single biggest benefit to a BBK is the ability to dissipate heat, which RB does at a fraction of the cost of a true BBK.

Let me re-phrase. The math is misleading. Sure, the % are correct, but that is misleading. They are making it seem like the smaller sweeping area is going to be a downgrade. When that is simply wrong. More torque is created -- larger circumference + larger pad area = more torque in this case.

You're missing the caliper design as that plays a HUGE part in how much heat a brake setup can take.

This is simply a cheap and rather good looking upgrade to help dissipate a little more heat and save a little weight. I get that, don't get me wrong, and it looks like it is going to do that. But, where they ARE wrong is presenting stuff like above where they're making it look like their simple rotor design is going to be a better braking setup than the stoptech big brake kit, which is a flat out lie and using a set of numbers without presenting the full story is in extremely poor taste, at best.

All of the points you just kind of brush aside are huge selling points to a big brake kit, especially when it comes to a car like the R which is up for track duty.

[mr2guru]

Let me re-phrase. The math is misleading. Sure, the % are correct, but that is misleading. They are making it seem like the smaller sweeping area is going to be a downgrade. When that is simply wrong. More torque is created -- larger circumference + larger pad area = more torque in this case.

You're missing the caliper design as that plays a HUGE part in how much heat a brake setup can take.

This is simply a cheap and rather good looking upgrade to help dissipate a little more heat and save a little weight. I get that, don't get me wrong, and it looks like it is going to do that. But, where they ARE wrong is presenting stuff like above where they're making it look like their simple rotor design is going to be a better braking setup than the stoptech big brake kit, which is a flat out lie and using a set of numbers without presenting the full story is in extremely poor taste, at best.

All of the points you just kind of brush aside are huge selling points to a big brake kit, especially when it comes to a car like the R which is up for track duty.

Yes they did make it seem like pad area makes a difference, which the larger diameter probably negates the larger pad diameter of the slightlty smaller rotor. They probably could have left that info out as a selling point because it's moot. Their design is in heat dissipation and that's the #1 thing you need in brakes. Rotor vane's design plays the biggest part in that. The more air you can pump through the rotor the cooler your caliper and rotor will be.

[Ryan E.]

I think that post was a little misleading, both are great products, and both have their advantages. I think the point was to show a less expensive upgrade route using a quality product. There aren't a lot of people that have the money to put on a BBK. I do feel the R brakes are more than adequate.

Look at Corvette brakes, they use a small sweep area but have a large diameter rotor and very long pads that doesn't make them worse brakes, just a different design.

So that's why I think that post was a little questionable.

[mfbmike]

Good discussion in here.

[ywang98]

Just picked mine up. Let me say this, the discs are top quality, and the service of the people at the office was impeccable!

Kim hooked me up with some nice free goodies, and the man in charge took me for a small tour of the facility. Saw the forged hats (before machined) and many other top quality discs.

The weight savings of the discs are substantial because I can feel the difference lifting them up with my arm. I had upgraded my GTI before to R32 stock brakes, and I know how heavy those discs are. The RB ones are much lighter.

Just reporting what I saw and what I got.

[gottiR32]

The weight savings of the discs are substantial because I can feel the difference lifting them up with my arm...

[Gotsol]

Just placed my order for wave 2. I can't wait

[Sdubs]

The weight savings of the discs are substantial because I can feel the difference lifting them up with my arm.

[VW-TX]

Please. Those slots are not providing even a small fraction of the cooling. The internal vanes are doing that.

LOL Agree. Slots are there for one reason, to let the gases escape between the pads and rotors which allow the pad to keep a good braking surface.

When I race, I want SOLID rotors, as the bigger the rotor, the better the vanes, the better cooling it will have. It will also take heat much better the more metal/surface area there is unlike drilled or slotted rotors.

[infiniteecho]

Yes they did make it seem like pad area makes a difference, which the larger diameter probably negates the larger pad diameter of the slightlty smaller rotor. They probably could have left that info out as a selling point as it is moot.

I think that post was a little misleading, both are great products, and both have their advantages. I think the point was to show a less expensive upgrade route using a quality product. There aren't a lot of people that have the money to put on a BBK. I do feel the R brakes are more than adequate.

Look at Corvette brakes, they use a small sweep area but have a large diameter rotor and very long pads that doesn't make them worse brakes, just a different design.

So that's why I think that post was a little questionable.

That is all I wanted to point out. the product itself looks very good. Just didn't appreciate the misleading marketing info.

I'm sure you Ryan of all people will be giving these the biggest workout on the track.

[infiniteecho]

LOL Agree. Slots are there for one reason, to let the gases escape between the pads and rotors which allow the pad to keep a good braking surface.

When I race, I want SOLID rotors, as the bigger the rotor, the better the vanes, the better cooling it will have. It will also take heat much better the more metal/surface area there is unlike drilled or slotted rotors.

Looks like you need to go back to brake school... slots in the rotors are to remove any glaze that may have built up on a pad from repeatedly being brought up to high operating temps. Especially useful for those not running a full on track pad.

[BetaOp9]

I said it earlier in this thread and I will say it again.

I love how everyone thinks they are an expert on thermodynamics and physics.

[ywang98]

Laugh all you want, guys.

I already read the whole thread about the weight savings, and I saw the difference in imperial measurements.

Just sharing an experience with you. The weight reduction is a lot. But the point of my post was to let you guys know that this is good stuff, and the service is great!

[gottiR32]

Laugh all you want, guys.

I already read the whole thread about the weight savings, and I saw the difference in imperial measurements.

Just sharing an experience with you. The weight reduction is a lot. But the point of my post was to let you guys know that this is good stuff, and the service is great!

Yeah but how's your arm...

[Gotsol]

Laugh all you want, guys.

I already read the whole thread about the weight savings, and I saw the difference in imperial measurements.

Just sharing an experience with you. The weight reduction is a lot. But the point of my post was to let you guys know that this is good stuff, and the service is great!

don't let them give you a hard time. I know what you mean. The weight difference must feel surprising just by picking them up.

[Ryan E.]

Warren and the RB team are good peeps, he's got a lot of insightful info...

Just picked mine up. Let me say this, the discs are top quality, and the service of the people at the office was impeccable!

Kim hooked me up with some nice free goodies, and the man in charge took me for a small tour of the facility. Saw the forged hats (before machined) and many other top quality discs.

The weight savings of the discs are substantial because I can feel the difference lifting them up with my arm. I had upgraded my GTI before to R32 stock brakes, and I know how heavy those discs are. The RB ones are much lighter.

Just reporting what I saw and what I got.

Nice, let's see some pics when you get them installed.

Just placed my order for wave 2. I can't wait

Off to Willow springs tomorrow, gonna get some base temperatures on my OEM setup with EBC Yellowstuff to do a before and after comparison!

[Gotsol]

Mine will be here at the end of this week! I can't wait. Has anyone installed there's yet? What are your initial impressions with them on the car?

[cleanA3]

got mine yesterday . so busy at work ill see if i can get them on this weekand

[Gotsol]

do they come assembled?