Track hrs for BBK pads
I am about to do a cost benefit analysis of a BBK for HPDEs and thought a thread like this would be useful. So for those with a BBK post up the following:
-Kit -Pad type front and cost -estimated hrs of track time -brake ducts (yes/no) -rear brake kit - pad type rear and cost -hrs on rear pads -estimated street driven miles |
The caveat is this is all from memory and my memory is suspect due to the sleep deprivation of a new baby.
-Kit StopTech ST-40 -Pad type front and cost -estimated hrs of track time Cobalt XR-2, $349, 30 hrs Carbotech XP10, $205, TBD -brake ducts (yes/no) no -rear brake kit URGE Flow - pad type rear and cost -hrs on rear pads Cobalt XR-3 $180, 15 hrs Carbotech XP8 $162, 36 hrs -estimated street driven miles 500? |
I believe the general consensus is that a BBK will eventually pay for itself. I went from going through DTC60s every other weekend before my BBK and I currently have 4 weekends on the same set of DTC60s with my BBK.
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Originally Posted by copafeel87
(Post 24264303)
I believe the general consensus is that a BBK will eventually pay for itself. I went from going through DTC60s every other weekend before my BBK and I currently have 4 weekends on the same set of DTC60s with my BBK.
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Originally Posted by imstimpy
(Post 24263935)
The caveat is this is all from memory and my memory is suspect due to the sleep deprivation of a new baby.
-Kit StopTech ST-40 -Pad type front and cost -estimated hrs of track time Cobalt XR-2, $349, 30 hrs Carbotech XP10, $205, TBD -brake ducts (yes/no) no -rear brake kit URGE Flow - pad type rear and cost -hrs on rear pads Cobalt XR-3 $180, 15 hrs Carbotech XP8 $162, 36 hrs -estimated street driven miles 500? |
No need for cost analysis lol...BBK saves money if you track a lot...I don't know how many hours I get out of pads because it varies based on which track but I used to get 2-4 days on stock calibers and now it is 15-25 conservatively (this is with racing and not hpde btw).
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Does the Urge rear brake upgrade make a significant difference by itself?
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Originally Posted by bgoetz
(Post 24264600)
it is odd, that your getting such long rear pad life. I have the G-Loc R-8 on the rear and I bet I wouldn't get more than 12hrs. Is it due to the BBK taking that much more of the braking load as well?
Originally Posted by copafeel87
(Post 24264303)
I believe the general consensus is that a BBK will eventually pay for itself. I went from going through DTC60s every other weekend before my BBK and I currently have 4 weekends on the same set of DTC60s with my BBK.
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How often are you guys replacing rotor rings? That is a decent cost regardless what kit you choose.
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I keep thinking "after this next day, I'm replacing my front rings". I still haven't yet... I'm probably at 40 hrs of track time on the ST-40 rings, many many autox runs, and a few thousand street miles too. I've had micro cracks for awhile now, but no fissures.
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Originally Posted by bgoetz
(Post 24263918)
I am about to do a cost benefit analysis of a BBK for HPDEs and thought a thread like this would be useful. So for those with a BBK post up the following:
-Kit -Pad type front and cost -estimated hrs of track time -brake ducts (yes/no) -rear brake kit - pad type rear and cost -hrs on rear pads -estimated street driven miles
One more note about brake ducts. Again, ducts are a complex issue. In this list the assumption is that brake ducts are actually lowering the disc and pad temperatures, and providing greater longevity. In reality, many of the home-brew duct kits we see actually hurt performance more than they help. A lot of times they blow air into the wrong areas, aren't collecting adequate air from the front of the car, aren't adequately transmitting the cooling air they do catch into the center of the disc, and the mounting mechanisms many times trap heat against the inner disc face. All of those potentially add up to increasing pad and disc wear rates, rather than decreasing them. Therefore, using brake ducts as any type of predictive factor for brake wear rates is darn near impossible. Hopefully the above is helpful. :) |
I agree trying to dial in on exact $$ isn't practical and maybe not real useful. That said this discussion has helped me determine that I can expect roughly 3 times thevpad life from a BBK, which then helps me come up with an return on investment that I can then present to my wife as justification to by a new BBK :)
it it also helps discuss the various BBK and pad options and look at possible combos that are more cost efficient. I can tell you that a couple of kits I a steering clear of based on the cost of pads and cost of future maintenance (rotor rings, rebuild kit, etc). When 75% of the reason for going with a BBK is to save $ a thread like this is helpful. |
Originally Posted by bgoetz
(Post 24264671)
How often are you guys replacing rotor rings? That is a decent cost regardless what kit you choose.
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I am going to try URGE flow rears with OEM fronts and see what I get. I figured I would buy these if I went with a BBK anyway so I might as well try them first. If these increase pad life I might even consider Giro disc front rotors and skip the BBK. Anyone who has tried this setup have insight on pad wear??
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Originally Posted by imstimpy
(Post 24265020)
I keep thinking "after this next day, I'm replacing my front rings". I still haven't yet... I'm probably at 40 hrs of track time on the ST-40 rings, many many autox runs, and a few thousand street miles too. I've had micro cracks for awhile now, but no fissures.
My URGE rotors still look pristine, albeit a little thinner. |
The driver also makes a huge difference in brake pad usage. If you're running r-comp tires and winning NASA time trials on a regular basis you're going to go through pads much quicker than the typical weekend track guy. But I do agree that a BBK will pay for itself if you track enough.
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I was going to install the Stoptech BBK but see that a set of rings is now close to $600 up from around $450 last fall. The Girodiscs went up a lot too. Did the price of steel go up? I thought it was still cheap - the recycling yards barely pay anything for it.
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-Kit: Trophy Kit
-Pad: Winmax W6--$180 I think- 9 Days so 9hrs? Still have 80% -Brake ducts: No -Rear brake kit: URGE -Pad: Winmax W6--$160 I think--8 Days 8hrs? Still have about 50% -Estimated street driven miles- 1000miles to and from track |
-Kit: V8 Roadsters Prototype Kit (STR-43 Caliper, 328mm x 28mm 2-piece directionally vaned rotor) - $1900
-Front Pads: GLoc R16 - $250 -7 hours so far, estimated 18 more days of track time left on pads (2 hours/day) -No brake ducts -Rear Brakes: OEM Rear Brakes -Rear Pads: GLoc R10 -8 days (2 hrs/day) on pads -7000 miles total on kit, mixed street/track driving. |
Originally Posted by DanielB
(Post 24434096)
I was going to install the Stoptech BBK but see that a set of rings is now close to $600 up from around $450 last fall. The Girodiscs went up a lot too. Did the price of steel go up? I thought it was still cheap - the recycling yards barely pay anything for it.
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Originally Posted by DanielB
(Post 24434096)
I was going to install the Stoptech BBK but see that a set of rings is now close to $600 up from around $450 last fall. The Girodiscs went up a lot too. Did the price of steel go up? I thought it was still cheap - the recycling yards barely pay anything for it.
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Originally Posted by imstimpy
(Post 24434413)
Yeah, I just experienced the same sticker shock. Last I checked, you could nearly cover the delta between AP and Stoptech with a pair of ring replacements.
MINI Cooper R56 StopTech Front Big Brake Kit BBK Aero Rotor The SKUs match what StopTech has listed on their site. SKU:31.326.1101.99 - Left SKU:31.326.1102.99 - Right StopTech Site for reference. http://www.stoptech.com/products/big...pl-aero-rotors Same price also here: https://www.discountbandit.com/stopt...8aAmZaEALw_wcB |
I don't track hours but I do track sessions.
Front: 35-38 sessions that last between 15-25 min each. Rotors have 67 sessions and look fine. Stoptech ST40 with APR Cooling Carbotech XP12 Rear: ~37 sessions. Rotors have 105 sessions and look fine. Urge 2 piece rears Stoptech XP12 Avg is about 4 sessions a day. |
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