UUC - Big Brake Kit - Direct Fit caliper, 11.75" rotor

[Massive Lee]

Don't worry Kshing. I am just having fun with a mouse. Pretty sure our buddys at Bimmerworld would enjoy all this rethoric.

BTW Rob. Do you remember that kit with flat hats? Yup. That's what I was refering too when I talked about offset.


BTW. How many two-piece hats and full kits have you designed in your lifetime? I am not talking simple brackets to fit a caliper to an OEM rotor, then sold at a very high price. So, I really enjoy the expert's talking. Why is that you offer only one kit to the e30 chassis? Third version of the same kit? Right? What was wrong with the other versions and how many times do you have to try to make it right?

And for your information, the only occurance with the rotor contacting the steering rubber boot is when cheap aftermarket ball joints are used. Get proper quality parts of the proper size, and there's no problem. ;-)

[guibo09]

Don't worry Kshing. I am just having fun with a mouse. Pretty sure our buddys at Bimmerworld would enjoy all this rethoric.

BTW Rob. Do you remember that kit with flat hats? Yup. That's what I was refering too when I talked about offset.


BTW. How many two-piece hats and full kits have you designed in your lifetime? I am not talking simple brackets to fit a caliper to an OEM rotor, then sold at a very high price. So, I really enjoy the expert's talking. Why is that you offer only one kit to the e30 chassis? Third version of the same kit? Right? What was wrong with the other versions and how many times do you have to try to make it right?

And for your information, the only occurance with the rotor contacting the steering rubber boot is when cheap aftermarket ball joints are used. Get proper quality parts of the proper size, and there's no problem. ;-)

cheap shot! no one is discussing the old UUC kits, just the same way no one is buying your old kits. improvement is normal and expected, and yes we can form opinions based on previous mistakes or shortcomings, but to bring that out, is low.

why dont we keep the discussion technical as before?

[Rob@UUC]

i can confirm lee's diagram, this is the exact result i got when i compared lee's sport kit with UUC's new kit, not what Rob posted above. the profile is different, and until i put both of them to my wheels, im not sure which provides better clearance.

Again, I was comparing it to Lee's kit that he made a point about... and the comparison diagram is clearly marked.

one thing is clear, the UUC kit does not provide tons more radial clearance that was initially suggested. but it does provide that small little 1x0.5cm of extra clearance at a critical spot. might just be enough (can't forget about wheel balancing weights!)

Oh, one thing not shown in those diagrams... pad backing plate relief.

Pad shape 7816 (as used in Dynapro) has "ears" that stick up at the corners, above the caliper. This raises the effective radial clearance requirement. That is not shown in the diagrams.

Pad shape HB237 (as used by UUC) does not have these ears at all, the pad itself barely sticks above the caliper and just in the center... and this is already represented on the UUC diagrams for clearance.

- Rob

[AusFahrt]

Long time lurker, first post as I can't believe what I am reading.

Looks like a royal crapstorm of fear coming from MassiveLie. So not professional and childish. Rob I am definitely buying your kit! Got your awesome swaybars already and they're the best.

AF

[Rob@UUC]

Don't worry Kshing. I am just having fun with a mouse. Pretty sure our buddys at Bimmerworld would enjoy all this rethoric.

LOL! Riiight.

BTW Rob. Do you remember that kit with flat hats? Yup. That's what I was refering too when I talked about offset.

So you're talking about a kit I stopped making a year ago in preparation for this new kit?

Can we talk about the stuff you were doing a year ago, two years ago?

I'm not going to do that, but it sure would be fun. Tempt me some more and I might stop being a gentleman.

BTW. How many two-piece hats and full kits have you designed in your lifetime?

Shall we talk about the ones I've done for multiple pro race cars, including the Daytona 24?

Or shall we talk about the ones I've done for FIVE other big-name tuners outside of BMW?

Something tells me your microcosm of making a few E30 brake kits has kept you from understanding what UUC is and what we do.

Why is that you offer only one kit to the e30 chassis? Third version of the same kit? Right? What was wrong with the other versions and how many times do you have to try to make it right?

More completely wrong information from Lee.

We had one Wilwood kit. The only reason it every changed was that Wilwood updated the caliper... the specific piston sizes we were using were only available in an alternate caliper, different version of the same pad shape. Effectively the exact same kit, Wilwood's caliper part number changed and which exact pad.

That kit was very popular. We sold a lot of them... enough to justify the considerable expense in our own caliper design. That is common sense!

Until I decided we could do even better, give more wheel clearance, and a better product.

How many calipers have you designed, Lee?

How many PRO race teams come to you for parts?

How many times have you worked directly with Grand Am, World Challenge, and BMW NA?

And for your information, the only occurance with the rotor contacting the steering rubber boot is when cheap aftermarket ball joints are used. Get proper quality parts of the proper size, and there's no problem. ;-)

Dude - I wasn't even measuring the boot. There's 8mm between the rotor and the GENUINE BMW knuckle. The 13mm "you think" you have is an outright fabrication.

Any more stuff you're going to make up?

- Rob

[JoeyBones]

I dont get the deal here...both kits are constructed different and can likely serve different purposes for different people. I can see benefits to either kit to tell the truth so who cares.

It's a crying shame when vendors bicker on a website. Competition pushes the sport and pushes the limits of the design. I myself as a mechanical engineer deal with this on a daily basis in my own job. I have to stay on top of he competition and must always look for ways to improve quality and keep costs down. It really is how I learn....because I have to. I dont go badmouth any other companies products and certainly don't bicker with them on the internet.

I understand it's important to get your product information out there, but eventually this activity will lead to people's distrust and distaste for your product and your company.

If this needs to be settled why not set up a comparison of your kits swapped on the same car with the same tires at as similar of tire temps as possible and do a straight line stop and also a lap or two...

[bimma360]

I dont get the deal here...both kits are constructed different and can likely serve different purposes for different people. I can see benefits to either kit to tell the truth so who cares.

It's a crying shame when vendors bicker on a website. Competition pushes the sport and pushes the limits of the design. I myself as a mechanical engineer deal with this on a daily basis in my own job. I have to stay on top of he competition and must always look for ways to improve quality and keep costs down. It really is how I learn....because I have to. I dont go badmouth any other companies products and certainly don't bicker with them on the internet.

I understand it's important to get your product information out there, but eventually this activity will lead to people's distrust and distaste for your product and your company.

If this needs to be settled why not set up a comparison of your kits swapped on the same car with the same tires at as similar of tire temps as possible and do a straight line stop and also a lap or two...

Yeah I agree man. Especially, since the first response to the thread was from Massive. Left a bad taste in my mouth. And i bought Massive's street kit too. I am happy with the product and the service i received from Lee. But I would have liked to see him stay out of a competitor's thread. Oh well.

I guess you should read my comment on www.e30tech.com

Are you affiliated to UUC? Discuss... ;-)

[guibo09]

I just test fitted the template to the TRM 15x8 wheel. it fits, but there is less than 2mm clearance at one specific point. the paper was floppy, so difficult to measure exactly. One thing to note is that the steps on the caliper front face are really well placed, they almost follow the barrel reinforcement of the wheel perfectly. definitely some effort put in there.

Rob, is there a built in tolerance in your templates? or thats the exact size as is? if so, do you think it would be possible to round off the sharp edge identified in the picture in future versions? i think this would be enough to get good clearance. i dont think 1-2mm is enough if you factor in bearing deflection.

if this kit fits this wheel, i think you will be selling alot more of these. it's gotten to be a very popular wheel with racers on the club, and im sure they would love to fit this much brake under them without having to go with spacers.

[JoeyBones]

seriously, if you printed that on any "normal" printer there could be a few mm of discrepency right there. you should use a calibrated plotter to ensure its 1:1 true scale. plus like you said its flimsy and hard to measure.

[nando]

yeah I tried printing it at 1:1 but it still came off a tiny bit.

a cad file would be better but not many people have a real plotter..

[guibo09]

yeah I tried printing it at 1:1 but it still came off a tiny bit.

a cad file would be better but not many people have a real plotter..

so did mine, about 0.5mm over the 8" scale. this just worsens the fit. nothing beats UUC actually trying the wheel directly.

[Rob@UUC]

I just test fitted the template to the TRM 15x8 wheel. it fits, but there is less than 2mm clearance at one specific point. the paper was floppy, so difficult to measure exactly.

I'd recommend using some spray contact adhesive and piece of cardboard. Take a look at the web page, there are pics in the FAQ showing that method.

One thing to note is that the steps on the caliper front face are really well placed, they almost follow the barrel reinforcement of the wheel perfectly. definitely some effort put in there.

BINGO! We fiddled, tweaked, adjusted, and ran way too many prototypes. The D-Force LTW5 wheels, as others have told me, have an interior clearance profile similar to the TRM wheels. From what you're measuring, I think the LTW5s have a little more clearance. See this pic:



I've been daily-driving these 30 miles a day through twisty, fast roads for several months... any bearing deflection would be evident in wheel contact by this point. None at all with the LTW5.

https://store.nexternal.com/uuc/imag...IT4_600.jpgRob, is there a built in tolerance in your templates?[/QUOTE]

The actual caliper does not go beyond the template... I'll take some close-up pics tomorrow to demonstrate.

if this kit fits this wheel, i think you will be selling alot more of these. it's gotten to be a very popular wheel with racers on the club, and im sure they would love to fit this much brake under them without having to go with spacers

That's the idea!

- Rob

[Rob@UUC]

yeah I tried printing it at 1:1 but it still came off a tiny bit.

a cad file would be better but not many people have a real plotter..

I should post a simple 1:1 jpeg or gif. One thing I ran into was that I could print the image file perfectly, but the pdf would only print perfectly on some of the printers in the office, but not all (not the one on my own desk, fer cryin' out loud!).

Watch for that image file tomorrow when I am back in the office.

[Hey-U]

I think I like the red ones.

[Wh33lhop]

I'd definitely like to see some more pictures of them under those LTW5s (a few full car shots would be nice).