an alternative to ridiculously expensive big brake kits.
08-07-08, 07:31 PM
#1
Savanna Rx-7
Thread Starter
an alternative to ridiculously expensive big brake kits.
I know many of you have been looking for a big brake kit for the fronts of you FC. here is one more option for you if you are interested. there is a race service shop here locally that builds big brake systems for various cars.
they use the stock caliper from either a Nissan 300ZX turbo/HCR-32 skyline and the rotor from a ECR34 skyline with the center machined to fit the FC hub. they sell the rotors and brackets as a kit and you provide the calipers.
you end up with a 30 mm thick rotor thats 310 mm (1.15" x 12.2" for the metric impaired) for about 550 shipped. I am not sure what the calipers run in the states but over here they useually run about 100~150 ish per pair in decent shape. the good thing is that you can get several different compounds from hawk for the calipers at reasonable prices.
I just installed mine and still need to get my adjustable brake bias installed but it deffinitely requires less effort to get stopped due to the leverage on the rotor. best thin is the 4 piston calipers that the nissan uses (sumitomo) have about the same size pistons as the 4 pot mazda's I have not measured them with calipers yet, but they eyeball in fairly close, and I did not gain any pedal travel after installing them.
just one more item available for the FC guys....they also make a FD kit.
kenn
they use the stock caliper from either a Nissan 300ZX turbo/HCR-32 skyline and the rotor from a ECR34 skyline with the center machined to fit the FC hub. they sell the rotors and brackets as a kit and you provide the calipers.
you end up with a 30 mm thick rotor thats 310 mm (1.15" x 12.2" for the metric impaired) for about 550 shipped. I am not sure what the calipers run in the states but over here they useually run about 100~150 ish per pair in decent shape. the good thing is that you can get several different compounds from hawk for the calipers at reasonable prices.
I just installed mine and still need to get my adjustable brake bias installed but it deffinitely requires less effort to get stopped due to the leverage on the rotor. best thin is the 4 piston calipers that the nissan uses (sumitomo) have about the same size pistons as the 4 pot mazda's I have not measured them with calipers yet, but they eyeball in fairly close, and I did not gain any pedal travel after installing them.
just one more item available for the FC guys....they also make a FD kit.
kenn
08-07-08, 10:09 PM
#3
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Is there really a big difference between the braking power of Nissan's and RX7's 4 pot?? I know I'm deceived about my GXL brakes (4 pot) but still, I'm wondering....
08-07-08, 10:22 PM
#5
well you are in japan im sure its done more then out here where people think its unnecessary. Id sure love me some Z32 calipers though.. id the conversion on my old s13.
Someone should make Z32 adapters though,.. fit em to more cheaply mitsubishi 3000gt /gto for use out here... =Huge!!
Someone should make Z32 adapters though,.. fit em to more cheaply mitsubishi 3000gt /gto for use out here... =Huge!!
08-07-08, 10:22 PM
#6
stock brakes are fine in my opinion...
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08-07-08, 10:31 PM
#8
I'm interested. My brakes held up well at the last track event, but if I'm gonna run more power, I'm going to need something more substantial. A friend of mine was/is in the process of finalizing his BBK, but he's run into liability issues.
Pics would be nice.
Pics would be nice.
08-08-08, 01:27 AM
#9
agreed, as long as you can lock up your tires, your brakes are big enough. big brakes are just so they dissipate heat better so they don't get heat soaked and stop working efficiently (aka, only happens on a track, and even then, you have to be on the track for a while)
stock brakes are fine in my opinion...
stock brakes are fine in my opinion...
Most people's brakes can outperform the tires at lower speeds, FCs come with a very nice fixed 4 piston caliper setup from the factory so unless you're tracking the car I doubt you'd notice the difference. It sounds like a great upgrade however and theres tons of track FCs on this board.
08-08-08, 06:26 AM
#10
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the stock calpiers may be big enough, but they still suck. they work great, but dont last for **** imo. i find that the only way to make them live longer is to bleed them constantly. and most of my miles are highway miles, too.
08-08-08, 09:26 AM
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no, no leaks, no air. i dont abuse my system but occasionally, i just find that after a small amount of working the stopping system, if not taken care of, the caliper pistions like to freeze up. if you let them sit too long when not driving the car for a while, they freeze up. new calipers are sometimes hard to find, (the 4 piston ones) and they cost a fortune. and one of the new ones i picked up had a stripped bleeder screw from the store.
when it works, it works fine. i just find the calipers rather finiky
when it works, it works fine. i just find the calipers rather finiky
08-08-08, 01:44 PM
#14
Engine, Not Motor
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The stock 4 piston design is good enough that Mazda used the same thing on the FD, though with a slightly larger rotor.
08-08-08, 01:58 PM
#15
no, no leaks, no air. i dont abuse my system but occasionally, i just find that after a small amount of working the stopping system, if not taken care of, the caliper pistions like to freeze up. if you let them sit too long when not driving the car for a while, they freeze up. new calipers are sometimes hard to find, (the 4 piston ones) and they cost a fortune. and one of the new ones i picked up had a stripped bleeder screw from the store.
when it works, it works fine. i just find the calipers rather finiky
when it works, it works fine. i just find the calipers rather finiky
If you get one with a bad bleder just give it back to them and ask for another.
08-08-08, 02:26 PM
#16
strike up the paean
previously discussed
https://www.rx7club.com/showthread.p...t=300zx+brakes
https://www.rx7club.com/showthread.p...t=300zx+brakes
possibly marginal benefit
https://www.rx7club.com/showpost.php...5&postcount=21
US 300zx caliper differences for anyone who actually wants to do this
http://importnut.net/300zxbrakeswap.htm <- see link for pictures on how to tell the calipers apart
https://www.rx7club.com/showthread.p...t=300zx+brakes
https://www.rx7club.com/showthread.p...t=300zx+brakes
possibly marginal benefit
https://www.rx7club.com/showpost.php...5&postcount=21
US 300zx caliper differences for anyone who actually wants to do this
http://importnut.net/300zxbrakeswap.htm <- see link for pictures on how to tell the calipers apart
Originally Posted by importnut.net
The following is a comparison of some different Z32 300ZX brake calipers.
The "26mm Aluminum" calipers were used ONLY on 1990 non-turbos. They used a 280mm x 26mm rotor.
The "30mm Aluminum" calipers were used on 1990 Twin-turbos and ALL 1991-1992.5 300ZX's (both turbo and non-turbo alike). They used a 280mm x 30mm rotor.
The "30mm Iron" calipers were used on ALL 1992.5-1996 300ZX's (both turbo and non-turbo alike). They also used the 280mm x 30mm rotor.
Of course, the easiest way to tell aluminum from iron is to use a magnet, but I hope this helps some people trying to figure out what they've got/are getting if buying with just a picture for info.
The "26mm Aluminum" calipers were used ONLY on 1990 non-turbos. They used a 280mm x 26mm rotor.
The "30mm Aluminum" calipers were used on 1990 Twin-turbos and ALL 1991-1992.5 300ZX's (both turbo and non-turbo alike). They used a 280mm x 30mm rotor.
The "30mm Iron" calipers were used on ALL 1992.5-1996 300ZX's (both turbo and non-turbo alike). They also used the 280mm x 30mm rotor.
Of course, the easiest way to tell aluminum from iron is to use a magnet, but I hope this helps some people trying to figure out what they've got/are getting if buying with just a picture for info.
08-08-08, 03:28 PM
#17
i'd love to see more options for the FC, even better if it'll fit under the 16'' rims
current options:
evo :
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/my-evo-ix-brembo-calipers-fc3s-upgrade-719280/
https://www.rx7club.com/race-car-tech-103/my-20b-racecar-thread-767875/
stock caliper + bigger rotor
https://www.rx7club.com/suspension-wheels-tires-brakes-20/mandeville-style-4-wheel-big-brakes-fc-feedback-needed-739122/
edit:
none of those work with my 16's ....
current options:
evo :
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/my-evo-ix-brembo-calipers-fc3s-upgrade-719280/
https://www.rx7club.com/race-car-tech-103/my-20b-racecar-thread-767875/
stock caliper + bigger rotor
https://www.rx7club.com/suspension-wheels-tires-brakes-20/mandeville-style-4-wheel-big-brakes-fc-feedback-needed-739122/
edit:
none of those work with my 16's ....
Last edited by sub9lulu; 08-08-08 at 03:38 PM.
08-08-08, 04:20 PM
#18
Brap Brap Psshh
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This might work for me, cause just drilled and slotted rotors and pads are about $550 (roughly).
08-09-08, 12:59 AM
#20
I completely disagree. When I do downhill runs on my mountain pass, my brakes get so hot, even w/ the 4 pots. They get so hot I couldn't lock my tires up if I wanted to. It actually gets pretty sketchy near the bottom, cause I have so little braking force. I'm definately in need of better brakes. After I fix my oil leak, replace my water pump, get my header, presilencer, and exhaust combo. Then I'm definately doin something about the brakes.
This might work for me, cause just drilled and slotted rotors and pads are about $550 (roughly).
This might work for me, cause just drilled and slotted rotors and pads are about $550 (roughly).
08-09-08, 02:00 AM
#21
I would run some heavy brake ducting instead of a brake upgrade Tyler. Are you sure thats not your fluid boiling? Brake fluid absorbs air over time lowering its boiling point. I would run brake ducting and run DOT 4 fluid.
I remember I got fade a lot too on street runs, my hawk pads were shot at 5000 miles and had huge stress cracks and glazing.
I remember I got fade a lot too on street runs, my hawk pads were shot at 5000 miles and had huge stress cracks and glazing.
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