Guest Anonymous Posted January 24, 2001 Share Posted January 24, 2001 What type of fitting is on the 280zx calipers for the brake hose? So, there is no reasonable bolt-on option except for the 280ZX stuff, which depends on the vapor brackets from an imaginary maxima Any progress with the z32 calipers danno? ------------------ Morgan http://z31.com/~morgan/s30 http://carfiche.com Quote Link to comment Share on other sites More sharing options...
Mikelly Posted January 24, 2001 Share Posted January 24, 2001 I'm actually using the earlier (Yes, less pad surface, worse rotor design) 280ZX calipers and I'm gonna drill my existing rotors for 5lug. Jim Cook racing sells ($200 OUCH!!!) a bracket for this application. I'm no fan of it though and would actually consider doing a complete rear brake sale as well... HMMM...Now you have me thinking.... Mike ------------------ http://hometown.aol.com/dat74z/myhomepage/auto.html "I will not be a spectator in the sport of life!" mjk Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted January 24, 2001 Share Posted January 24, 2001 There's gotta be something that fits in the rear without welding! I want vented, but I'll take a solid rotor I guess: So anyone tried the 87-89 Z rear brakes? They are sliding calipers, so no major offset problems(unless it's waaaaaay off), and fit on the readily available flat maxima brackets. Large vented rotors, mechanical parking brake, readily available, etc. I will get my 88 and 240 side-by-side and take some measurements, I have a set of the flat brackets collecting dust too even! I really like z32 rear calipers 'cause they're not floating thingies, but oh well. ------------------ Morgan http://z31.com/~morgan/s30 http://carfiche.com Quote Link to comment Share on other sites More sharing options...
Danno74Z Posted January 24, 2001 Share Posted January 24, 2001 Hi Morgan, I posted this on one of the other links but in a nut shell the rear parking brake mechanism will not fit on our early Z cars. The "stand off" which is the distance from the axle housing flange outer face to the hub face is too short. This is just a guess, but it looks like we need 2.5" to make this work and we just don't have it. Putting on the bolt on bracket just makes the situation worse. The good news. Without the backing plate the rotor will fit over the axle flange just fine. (Removed the lug studs except for one and having a machinist drill the four other holes.) I took the lower member to the welding shop and explained what I needed and he said - no problem at all, just give me the brackets to be welded. Over the weekend, I made a template out of wood to simulate the ¼" steel plate I'm using for the brackets. This took a little time do but I put in some cheap pads into the caliper and applied a little compressed air to force the pads against the rotor. This allowed me to position the pads/caliper over the rotor wear surface and get measurements for the bracket. As it turned out the new bracket can/needs to be 3" back from the hub face and was welded onto the flat side of the bearing housing with no problem. The welder used a TIG process to join the materials. I have one done and I can tell you it ain't coming off. I know you don't want to weld a bracket on but I didn't see any other way and still use the Z32 parts. As you know the vented rotor is .81" thick and over 11" in diameter which I think is good for my application. I also just plain like the caliper because with a little effort I can polish the aluminum up and they should look good behind my 5 spoke wheels which are on order. I also ordered 2 Wilwood spot mechanical calipers from http://www.ryanemotorsports.com/ and I should get them this Friday. I most likely will mount them in the same fashion as Pete did (you're a huge help Pete - THANK YOU) on his car. In my case I may have to have another much smaller bracket TIG'ed on. I splurged and ordered the polished mechanical calipers, only $20 more - don't tell the wife. Danno74Z Danno74Z [This message has been edited by Danno74Z (edited January 24, 2001).] Quote Link to comment Share on other sites More sharing options...
Danno74Z Posted January 24, 2001 Share Posted January 24, 2001 Morgan, No, the flat bracket must be welded to the side of stub axle housing (in-between the inner and outer wheel bearing location). Measure from the face of the hub (pardon my oversimplification) where the wheel bolt to and go in 3" toward the center of the car. This is where the caliper bracket face needs to be welded when using the Z32 rotor. The reason for this location of the bracket is because the hat of the rotor has a high offset to accommodate the parking brake drums. The z32 drum is almost even with the existing backing plate flange area so trying to bolt it up in the backside area as you suggest just doesn't give you enough room. Again, this is with the Z32 rotor. If you could find a rotor that has the same backspacing as the ZX rotor but was 11.25" " in diameter then you would be home free and you could use the bolt on bracket. I just gave up looking for a OEM rotor. I have these (spent the money) so I felt somewhat pressured to use them. I just can afford custom hats made like the Wilwood 2 piece units. Wilwood does sell the parts but I basically gave up putting the piece parts together. If you still have questions fire away. Danno74Z Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted January 25, 2001 Share Posted January 25, 2001 You mean a flat bracket can be welded onto the rear of the backing plate flange? ie. why couldn't one make a bolt-on bracket that bolts onto the rear of the flange? Or did I misunderstand you? ------------------ Morgan http://z31.com/~morgan/s30 http://carfiche.com [This message has been edited by Morgan (edited January 24, 2001).] Quote Link to comment Share on other sites More sharing options...
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