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- เผยแพร่เมื่อ 4 ต.ค. 2024
- Are these $750 rear rotors worth it? Yes.
Urge Flow Rear Rotors: urgedesigns.co...
Timestamps
Why the rears? 00:37
Unboxing and overview 01:30
Compromises / Tradeoffs 2:41
Back to back track test against OEM rotors 4:01
Front brake pad wear improvements 5:36
Advantages on competitive kits 6:22
Update: You can buy preshaved Raybestos rear brake pads from SpeedFreaksUSA. They advertise ST-43 on their site but they were able to have ST-47s made for me as well. You will likely need to give them a call. They should take care of you.
That corner cut at the end haha
You must be an engineer, because as a mechanical engineer myself, listening to you speak is like hearing my own thought process lol. Great video. I will try to get some temps of my rear rotors this year at some events. Being that i still have the solid rear rotors, i wonder if the brake ducting I did will bring down the temps comparably.
I'm a software engineer so yeah, I'm always interested in understanding how things work! Measure your temps with the ducting enabled/disabled, I plan on doing something like that myself.
Please do!
Eight minutes of Popcorn
Nice as always👍
Y’all are too kind.
These rotors are amazing. I think I had about 50+ days on them. I only changed them because the slots started to disappear. Great videos by the way. See you out there.
50+ days is pretty amazing! Thanks for chiming in with your experience.
That's how you know it's time for replacement.
They seem a bit too thin..
Any updates regarding them?(from both of you)
I sold them after about 20 track days since I had the option to get a BBK. And they had plenty of life left.
I recommend using a touch type pyrometer over the laser style far more accurate because the reflected light can skew the number from a shiny surface. Laser type work great for tire temps however
I’m looking forward to the day where I have the need for this upgrade! 🙏🏼
Thanks for the amazing video. Your methodical approach of before/after measurements are how it's meant to be done, but much bigger channels don't take the time to really get into the nitty gritty. Well done mate, can't wait what else you will do with your CR. Looks like you are driving it properly too, well done!
Thanks! It takes a lot of time and money (track days aren't cheap) to do the testing that I do. I think most bigger channels are more interested in pushing product.
More cooling and reliability mods are next for the CR.
@@DIYGuysvideo any issues with not running shims ? Noise ? Uneven wear ?
@@Udancearoundme My brakes were generally noisy with track pads so I don't recall.
Nice job!! Congrats on the new PB, and perfectly made/edited video!
Ya'll are too nice
I was super exited until I got to the brake pad part and having to grind them down.
Its the biggest tradeoff for sure.
I think you could also benefit from doing a video about the shifter detent springs to help with "pop out" on certain cars.
thanks for this review!
You're welcome!
Have you tried installing a rear brake cooling duct? Just curious how it would compare. Btw very resourceful mod. I applaud you fact finding solution to your problem. Most people just buy a bbk. Throwing away a perfectly capable braking system just because they dont know how to maximize its effectiveness with little tweaks.
Thanks for the kind words!
I have not installed a rear brake cooling duct yet.. The folks at Urge actually told me it wouldn't make a difference but I'm still interesting in trying it out. If it doesn't make a difference on the Urge rotors I could still try it back to back with the solid rotors.
That would be a valuable video to do stock/urge with/without ducts.
Had a issue with not installing those metal retainers that go on either side of the brake pad. Started to get a clanking because the brake pad was loose and not fit into place. Im having to modifiy my stock ones to accommodate the larger rotor thickness. Not sure why nobody else had this issue with this kit
This is perfect. What would u recomend for front? The balade 330mm disc upgrade? Or just a floating disc ?
Great video
Great video as always :)
I said the rotors rings are directional, with 40 straight vanes. What I meant by that is the rotors have a left and right side.
@@DIYGuysvideo I was quoting what Urge writes on their web page.
I think you are looking at the Girodisc front rotors section which are a different rotor.
@@DIYGuysvideo you are completely right.. I was reading to fast :I
Dont be talking about my mustang rotors. Me and the boys going to get mad.. great video keep them coming
LOL, thanks dude.
I'm doing one set at a time, which do you think should be done first? Giro disc front or urge rear?
Rear will have the most impact
If you had the modified rear caliper brackets would you still need to offset the rear brakes like that or can you use 2 new pads?
Yes. The limiting factor is how wide the OEM calipers can go.
@@DIYGuysvideo dang that's very strange. Will the uneven pads cause premature wear of the rotor?
I don’t see how it would.
Did you shave off 6 or 8 mm of bracket in your modification?
Do you recomdie use Girodisc 2-piece front rotors with oem caliper ?
Yes. The Girodisc rotors are amazing and extremely durable.
@DIYGguys can you do a video on brake dust shield if its better to have them off or on the car? I know some BBK removes them but for stock cars with occasional track day and daily driving will it benefit to remove them and if it effects the braking system?
For track car it might make sense since those shields trap heat. That said they do act as a heat shield and barrier between rotor and bushings, so removing them might make the bushing grease cook. Also on a street driven car you will be getting a lot more dirt/water/etc from the wheel well onto your brake parts.
Would you see even higher cooling effect by removing the tin plate that sits inboard of the disc. I assume this is to keep water off the disc in road use but grooved discs shift water well.
Yes I think so.
What lap time did you run before and after at Button Willow and ThunderHill? Was the rear brake kit the only thing you changed?
Before at BW I ran a high 2:02 and then afterwards I ran a high 2:01. That was in the same day. The last time I went to Thunderhill East I ran a 2:11 and this time I ran a 2:08 but the car had changed a bit since then. I installed harnesses and and generally had more seat time.
I don't know why Girodisc doesn't directly produce a rear rotor replacement.
Probably because the OEM rear is a solid rotor which is something they don’t specialize in.
I'm assuming there is no fitment issue with any wheels/offsets, since they are same diameter and their thickness is offset by grinding out the inside of the bracket and 2mm off the pads?
That is correct
What's the best method to shave down pads for this kit if you don't have used ones that meet the thickness requirements?
One option which I omitted is buying pre-shaved Raybestos ST-43 from Speedfreaks USA. I would guess sanding them its the best approach. Could potentially use a belt sander or a bench grinder or a machine shop.
I have replaced my rear calipers due to sticking issues. Power stop worked well for me but unfortunately they only come in red.
I may move to a StopTech C42 kit though.
The urge kit works really well. I think I have like 17+ days on my kit and the rotors look completely fine. I would only consider the stoptech rear kit just to get even more life out of the pads/rotor and to review it for fun.
I recommend the power stops since the seem to be one of the few rebuilt calipers that won’t rust since they are powder coated.
@@DIYGuysvideo Check out the latest video that @NAUS posted about his new OEM rebuilt calipers from taikyuspec. Seems they can cerakote them in nearly any color for you, too. Don't quote me on this, but I don't think they need a core, and have a limited lifetime warranty
Can you do a ignition coil connector replacement diy?
I’m going to need some broken ignition coil connectors first 😀.
I’ve had a few people ask about this though. Will keep it in my radar.
Turns out my car has busted ignition coil connectors. Should have a video published tomorrow!
The whole not being able to use two new pads is kind of janky, no?
That's honestly the only thing from going this route... I'd love to keep my e-brake but there really aren't any options.
Speedfeaks USA sells pre shaved Raybestos ST-43 specifically for this kit which I have been using.
@Tom Mills I used to run both front and rear. They are much more aggressive than the PMU HC+, even much more aggressive than PMU Club Racers. I personally really like them as the bite is generally much stronger and they last much longer than the PMU Club Racers. I recently ended up bending them at Laguna Seca and fading them but I seem to be an exception to the rule.
Can u do a video on Your thoughs on keep NA vs going FI on an s2000
I don't really want to do a whole video on the topic. It really depends on what YOU want out of your car. Most people that I see going FI are street cars. Personally, I don't want to upgrade my car until I hit a plateau and I keep going faster without changing anything on the car.
Dont think on horsepower. The gearbox also is a part on aceleration power. Why not instead of 600 hp, put instead a shorter final drive, or a short gearset ??? On my k20 civic i have a 5.5 final drive plus 4 5 and 6 shorter gears, and my aceleration power at turn exits is bigger than cars with almost twice the power
Have you heard of PARAGON 2 piece rotors?
It's not a double vane
paragonbrakes.com/2-piece-rotors-rear-honda-s2000/
I have! I was looking into them recently. I like that you don't have to shave the rear pads in order for them to fit. At the same time that means the rotor itself is thinner and I'm wondering if that is an issue or not. It will have lower thermal capacity compared to the urge rotors.
Look closely. Those Paragon rear rotors are SOLID rotor, not vented. Not really much improvement over stock. Be careful of generic rotor images in marketing materials. Your typical rotor is vented,so a generic photo will be vented. Read ad material carefully to make certain it actually says vented (and don't let your brain play tricks on you when you read slotted!) Make sure the photo you're lookin at is of tbe actual product, then look closely to see if vented.
@@russelloppenheimer3970 oh god I can’t believe I didn’t notice. I just assumed anything in that price range was a 2 piece rotor. Must be a complete waste of money then.