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S2000 Brake Fade on Track

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Old May 5, 2020 | 03:29 PM
  #71  
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Originally Posted by AP2.V1
I have the same problem for MY05. stop tech rotors stock calipers with hawk hp+ on the fronts... its not consistent but I do from time to time get that fade.
select a more aggressive brake pad. The Hawk HP+ is not up to snuff for track use with the current 200TW tires, even worse if you're running 255s up front.

End of the day - you need a BBK for more serious track use. Stock braking system in the s2k is one of the weakest points in the entire system. A fast/skilled driver in a completely stock s2000 on RE71r or A052 or RS4s will fade the brakes and crack rotors.

"Casual use", Auto-x, canyon runs, etc. will have varying results - you can probably get away with better pads and cooling ducts.
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Old May 7, 2020 | 06:54 AM
  #72  
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Originally Posted by Bullwings
Stock braking system in the s2k is one of the weakest points in the entire system. A fast/skilled driver in a completely stock s2000 on RE71r or A052 or RS4s will fade the brakes and crack rotors.
....and yet, you can still win the NASA Honda Challenge H1 class with stock calipers, some 2 piece rotors and ducting ..... weak yes but not worthless.
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Old May 7, 2020 | 07:09 AM
  #73  
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Originally Posted by freq
....and yet, you can still win the NASA Honda Challenge H1 class with stock calipers, some 2 piece rotors and ducting ..... weak yes but not worthless.
Not sure NASA's small sample sizes can be used as an example. There really were only two cars that were competitive.
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Old May 7, 2020 | 07:29 AM
  #74  
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Originally Posted by freq
....and yet, you can still win the NASA Honda Challenge H1 class with stock calipers, some 2 piece rotors and ducting ..... weak yes but not worthless.
Just because it can work doesn't mean it is cost effective over a long term. I effectively broke even with my C43 kit in a year.
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Old May 7, 2020 | 11:21 AM
  #75  
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Agree with both points. Brake ducting, good pads and regularly flushing brake fluids all go a very long way. I ran on that setup for years, even on R-comps, and although I didn't have much brake fade, I did regularly crack rotors and always packed a couple spare rotors to every track day.

I decided to upgrade to BBK when I supercharged my S, and I do regret not doing so earlier. I've done about 25-30 track days on my BBK, and my pads are only 50% worn and the rotors look perfect. As far as cost effective, a pair of replacement rotor rings for my BBK costs $1300 (vs. $50-100 for OEM-replacement blanks) and I haven't needed to replace them yet so can't really factor in the cost/longevity value of the rotor yet. But it sure is nice not worrying about the brakes anymore.

Last edited by VitaRenovatio; May 7, 2020 at 11:23 AM.
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Old May 7, 2020 | 11:54 AM
  #76  
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Originally Posted by AP2.V1
I have the same problem for MY05. stop tech rotors stock calipers with hawk hp+ on the fronts... its not consistent but I do from time to time get that fade.
Like others have mentioned the pads are the issue there- HP+ have decent characteristics on track but they are designed to work at lower temp ranges than what the pads will see in stock calipers on track. They are also more obnoxious and emit more dust on the street than most full blown track compounds so I'd absolutely look at upgrading compounds when those are done.

A true BBK is always going to offer the longest pad/rotor life and most convenience but there's obviously the cost of entry to get past. If you're not looking to spend that much just yet we did a batch of PFC 08 endurance compound for the stock front calipers. I've been using them on the street for the last couple months while track events have been shut down and they work surprisingly well as a dual use pad- plenty of cold bite and have actually been quiet on the street. Wear rates also seem to be better than anything else currently available for this car in the stock calipers. We've been pairing with the 97 rear compound until we can get 08s made for the rear.

Check them out if you're interested:
PERFORMANCE FRICTION BRAKE PADS 0829.08.16.44 HONDA S2000 FRONT *S2KI INTRODUCTORY SALE*

-Matt M.
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Old May 8, 2020 | 05:31 AM
  #77  
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Originally Posted by roel03
Not sure NASA's small sample sizes can be used as an example. There really were only two cars that were competitive.
Can't deny they were fast.

Originally Posted by Chibo
Just because it can work doesn't mean it is cost effective over a long term. I effectively broke even with my C43 kit in a year.
Agreed. As long as you already have a set of wheels that are already BBK compatible, otherwise it just raises the cost of entry for a BBK.

So many variables here. Disposable cash, desire to compete or be competitive, etc....
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Old May 8, 2020 | 07:29 AM
  #78  
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Originally Posted by freq
So many variables here. Disposable cash, desire to compete or be competitive, etc....
What is the impact of added confidence from not worrying about brake performance in the later minutes of a session? Obviously this can't be measured, but knowing the brakes will always be there even at the end of a 30 min session on a hot day means I can focus more on other things (e.g. managing tire temps to deal with grip). It's one less distraction.
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Old May 8, 2020 | 08:15 AM
  #79  
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I'll quote myself since i've posted this in other BBK threads, but the finances of a BBK over the stock OEM system are in favor of running a BBK - even if you need to buy wheels since wheels will have residual value and can be sold later.

Anyway - the financial pros of running a BBK. Analysis below was with ST40 kit. the Wilwood Sake Bomb kit will be cheaper - rotor ring replacement is cheaper too.

Originally Posted by Bullwings
TL;DR - if you're fast and track your car regularly, then a BBK is absolutely worth it. You can go with one of the cheaper options too - Stoptech ST40 kit for ~$1500 or the Sake Bomb Wilwood kit for $1250 or so.

I posted this before, but here's my "brake" down of cost effectiveness with the stoptech ST40 kit (purchased at $1500).


I tracked the car stock on street tires (RS3/RE-11a) for two years with 12 track days a year. Pads were XP10/XP8 or DTC70 with RBF600. Car had 2.5" brake ducts. Pads and rotors would not last longer than 4 track days (sometimes only 3). Rotors would crack and pads would be down to backing plates.

A set of front pads on OEM calipers = $200
Set of front rotors = $100
Total cost = $300.

Replacing pads/rotors every 3-4 track days with 12 track days a year = $900-$1200 per year. not to mention, lost track time if you're doing a track side replacement due to a cracked rotor, which is expensive at ~$130 to $200 for a track day.

My Stoptech ST40 kit cost $1500. DTC70 pads cost $240, or i can step down and use a less aggressive pad HC800+ which costs $170 on the ST40 caliper.

So far I have 10 track days on on the HC800+ pads and am still on the original rotors. They have a ton of life left.

Other users have reported 20-25 track days before replacing rotors.

Assuming 24 track days and replacements every 3.5 track days,
that equals 6.8 replacements, which is ~7 replacements if you were on stock rotors.
7*300 = $2100 over two years (OEM setup)

BBK
-$1500 initial cost
-$180 pads.
-Rotor ring replacement = $500
-another set of pads = $180
Total = $2300

That's over two years. Keep in mind that your BBK has residual value and that you can easily sell that BBK for $1000 if you part the car out. That brings that cost down to $1300. No one is looking to buy used OEM calipers and rotors...

If you drive the car and track for longer than two years, it pays for itself and continues to decrease your cost of tracking.

That doesn't even go into the benefits of the actual performance difference, which is pedal feel/consistency over a 25 minute session, and no brake fade at all.

The s2000 is under-braked for track use. For street use, just buy better pads, lines, and fluid - not a problem. For serious track use, once you start getting up to speed, a BBK is extremely beneficial and under-rated. I actually bought a BBK before coilovers - financially, they made sense based on how often I was going to track and will be going to track.

I calculate 4 year use at 12 track days a year as this.

OEM calipers and rotors
-4 years at 12/ year = 48 days
-Replace every 3.5 days = 13.7 replacements
-13.7*300 = $4110


BBK
-4 years at 12/ year = 48 days
-Purchase BBK and track pads = $1680
-Replace rings and pads every 24 track days = 2 replacements
-2*(500+180) = $1360
-Total = $1360 + $1680 = $3040
-Sell BBK when done with car = -$1000
-New Total = $2040

Difference of OEM vs BBK over 4 years = $4110 - $2040 = $2070

So, yes, a BBK will pay for itself and then some if you actually track the car and are driving the car fast enough.
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Old May 8, 2020 | 08:55 AM
  #80  
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Consumables drop even lower when you look at the C43 kit. I paid $1825 for mine with the SR33 pads included, which are great. I believe you can get the kit even cheaper if you shop around a bit, but I was supporting a friend.
Rotor rings are $100 a piece; pads are thicker and half the price of the ST40
https://www.zeckhausen.com/catalog/i...th=24_7425_411 vs https://www.zeckhausen.com/catalog/i...h=24_7425_7659
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