Rear Big Brake Kit, Anyone Interested?
06-28-2004, 06:07 AM
#1
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Location: Bayarea, CA
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I am developing an alternative 99 spec rear brake kit. The 99 spec rear brake uses a larger diameter brake rotor (12.36" vs. the stock 11.57" ) with the same 0.79" thickness but the caliper itself is the same spec as the one we have on the US spec RX-7. So why spend $440 on a pair of 99 spec calipers when it has the same dimension of piston and everything else except it sits further out to accomodate the larger brake rotor? If you have seen the group buy on the rx7 forum, the whole 99 spec rear kit costs about $850.
The alternative 99 spec rear brake kit is going to come with the CNC machined aluminum extension bracket to relocate the caliper to accomodate the larger 99 spec rear brake rotor, OEM Mazda 99 spec rear brake rotors and all the misc. hardwares. Target price is $550 but group buy is always possible if there is enough interest.
This kit will perform as well as the 99 spec rear brake as long as your calipers and brake pads are in good condition. The prototype will be finished in about 2 weeks and I will post some photos then. Thank you.
Chuck Huang
The alternative 99 spec rear brake kit is going to come with the CNC machined aluminum extension bracket to relocate the caliper to accomodate the larger 99 spec rear brake rotor, OEM Mazda 99 spec rear brake rotors and all the misc. hardwares. Target price is $550 but group buy is always possible if there is enough interest.
This kit will perform as well as the 99 spec rear brake as long as your calipers and brake pads are in good condition. The prototype will be finished in about 2 weeks and I will post some photos then. Thank you.
Chuck Huang
06-28-2004, 04:11 PM
#7
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Originally Posted by 88gt' date='Jun 28 2004, 09:31 AM
Will this require the use of 17in wheels?
Chuck Huang
06-28-2004, 04:27 PM
#8
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only the rotor is going to be larger right? how about the brake pad, i dnot see how it can be more effective if the same size pad is used.
if im wrong, please correct me, cuz im always interested in learning
if im wrong, please correct me, cuz im always interested in learning
06-28-2004, 04:52 PM
#9
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Originally Posted by FikseRxSeven' date='Jun 28 2004, 01:27 PM
only the rotor is going to be larger right? how about the brake pad, i dnot see how it can be more effective if the same size pad is used.
if im wrong, please correct me, cuz im always interested in learning
if im wrong, please correct me, cuz im always interested in learning
A larger brake rotor will perform better even with the same caliper for the following reasons:
1. More surface area.
2. More material to dissipate heat
As you know, brake system works by turning kinetic energy into heat. Brake starts to fade when the brake rotor does not dissipate heat fast enough. A larger brake rotor with more material and surface area will dissipate heat better so they are less likely to fade under extreme condition.
Chuck Huang