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06-24-2013, 06:08 PM | #1 |
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StopTech Big Brake Kit 328x28 Weights and Pics :)
Hey everyone!
We finally had a chance to get one of these kits in-house and our customer was nice enough to let us take our usual photos and grab some weights of the kit before sending it out to him. Thanks Bill!! @Scooby South Such a well put together kit and the calipers are gorgeous. Everything needed for the install comes with the kit, SS lines, brake pads, rotors, calipers, and caliper brackets. The pads are Stoptech's 309 series pad, so expect great bite with a temp range capable of being driven on the street with occasional track. Onto the pics Caliper = 7.6 lbs Pads and Mounting Bracket = 3.6 lbs Hat and Rotor = 14.6 lbs |
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06-24-2013, 06:11 PM | #2 |
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What's it cost?
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06-24-2013, 06:41 PM | #3 |
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Very Cool... thanks soo much looks awesome.. soo by the weight.. it would appear I am going to save about 6.5lbs per corner over the stockers.. Not as much as I had hoped..but Better than stock and with much improved braking efficiency.. You Guys Rock.. Thanks again..
Bill
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06-24-2013, 07:15 PM | #4 |
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06-24-2013, 08:02 PM | #5 |
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I have these on my car, so much fun. Holding in my hands the ST calipers look to be a much better quality then the production brembos on my old sti.
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10-10-2013, 11:52 AM | #6 |
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Do these fit rpf1 17x9 +35? I know they won't fit +45.
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01-04-2014, 08:36 PM | #7 |
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01-04-2014, 08:42 PM | #8 |
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depends on the rims spoke design.. it works on a 17x9 42 Rota DPT and Titan..
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01-04-2014, 09:51 PM | #9 |
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Are the rotors floating?
Jow does it compare to the AP Endurance kit? |
01-06-2014, 11:44 AM | #10 | |
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Quote:
Calipers Anti-knockback springs AP Racing has them, StopTech doesn't. People severely underestimate how valuable these springs are. After going through S turns, you'll have a much lower pucker factor in the next brake zone with the springs installed. Piston type StopTech= cast aluminum AP= machined stainless steel Stainless is far superior at keeping heat out of your brake fluid Weight ST-40 weighs 7.6 lbs. without pads AP Racing CP8350 weighs 4.8 lbs. without pads...almost 3 lbs. lighter per side. Dust Boots StopTech is a street caliper, and as such uses dust boots. CP8350 has none. If you've ever run dust boots on the track, you'll find that they burn up and cause a big mess almost instantly. Their only value is if you're driving on winter or debris/dirty roads. As soon as they go on track they essentially lose all value. Seals Both calipers have quality, high temp seals. Hydraulic protection ST-40 has none, while the CP8350 has it for both bleed screw and crossover tube. This feature protects the hydraulics from track debris, and when you're swapping wheels. High quality forged aluminum The caliper bodies on the ST-40 and CP8350 are both high quality forged aluminum parts. Pad choice/cost/size Both calipers have tons of pad options. The pad surface area on the ST-40 is slightly larger, but they are a few mm thinner than the pads used in the CP8350. Overall pad mass is very comparable, but the nod goes to the thicker pads in terms of wear rate. On average, pads for the AP caliper are $100 less per set for the same compound. Stainless Steel hardware Both calipers have good stainless steel hardware. Footprint/size In addition to weighing much less, the CP8350 has a substantially smaller footprint and offers superior wheel fitment. Finish StopTech= painted. Look pretty, but will not look as good after hard use. Paint and powdercoat tends to change color dramatically at track temps. If you're driving through road salt, they will be better protected than anodized. AP Racing= anodized. Look 'racier' (like what you see on full-blown race cars like C6R) and do not color shift nearly as much. Bracket Essex Endurance Kit has a super trick built in provision for brake ducting...nothing of this sort on the StopTech setup. Rebuild Service Essex offers a lifetime professional reconditioning service. For a $125/caliper you can send your calipers to Essex and have them rebuilt by the same techs who service NASCAR and ALMS teams. StopTech can rebuild, but I'm not sure how formalized their procedures, policies, and prices are at this time. Discs Design Discs from both manufacturers are quality castings that are crack resistant and will last a long time under heavy track use. That said, the AP Racing discs are a heavy duty 70 vane internal construction, and patented J hook face slot are the #1 choice at the elite level of motorsports (NASCAR, ALMS, DTM, Super GT, etc.). The StopTech's are only a 48 vane disc with a conventional slot pattern. Price The AP's offer more features at a lower price. Replacement iron prices per disc are as follows:
Both have a quality design and are made from aircraft grade aluminum. Both are optimized for weight and airflow. Weight Essex/AP Racing Sprint hat/disc= 12.2 lbs. Essex/AP Racing Endurance hat/disc=17.2 lbs. StopTech hat/disc= 14.6 lbs. Even though the Endurance discs are heavier than the StopTech discs, the calipers in the Endurance kit are substantially lighter, offsetting the disc weight. Therefore you get the higher thermal mass and cooling of the 32mm wide AP Racing disc, with it's 70 vanes, but you don't suffer a weight penalty on the kit overall. Wheel Fitment I believe our Essex Comp kits sit inboard of the StopTech setup by about 5-7mm if I remember correctly, offering more wheel clearance. Brake Lines Both systems came with a high quality set of brake lines. Summary When we put our Essex Competition Kits together, we tried to look at every piece of the StopTech system and produce something that eclipsed its performance, all while keeping the costs down. My past employment there put me in a perfect position to accomplish this task, and I believe we have succeeded...more technology, higher specification, lower running costs, better fitment, etc. A final note on pricing...even though our Endurance Kit is a bit more $ than the StopTech kit, the running costs equal out very quickly. You'll save at least $100 per pad change on the Essex kit (and the pads on the Endurance or Sprint kit are 3-4mm thicker vs. the ST kit). You'll save another $50 per iron disc replacement vs. ST. I also firmly believe that the pads and discs in the Essex kits will last longer due to all of the heat reduction features listed above. The Endurance kit also has the brake duct provision, so that's one less thing to buy if you're going that route. In terms of the Sprint Kit vs. the StopTech's...the replacement discs are $159 vs. $300. So when you need spare ST discs you're looking at about $600 vs. $300 for the Sprint Kit. That's more the initial price difference between the two kits, and doesn't take into account the laundry list of additional features you get with the AP kits.
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01-06-2014, 05:59 PM | #11 |
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^Haha Cant get a better answer then that, Very good info.
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03-19-2015, 05:01 PM | #12 |
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@JRitt my vehicle is primarily street driven, but does see occasional track duty. From my understanding, the AP kits do not fair well in daily driven conditions. Is this true? That's the only thing keeping me from purchasing an AP kit.
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03-19-2015, 07:05 PM | #13 | |
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03-19-2015, 08:39 PM | #14 |
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As far as I recall, it's really salt that's the biggest issue. and partially (entirely?) due to the anodized aluminum caliper (vs painted/coated?). I'm not sure if other road conditions may also cause AP to be less idea for a daily.
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