BMAC Posted October 15, 2012 Share Posted October 15, 2012 I am looking at upgrading the rear brakes on my 280zx because I have 12.2" 4piston front brakes w/ wilwood portioning valve and looking for a little more of a balance. I wanted to add more rotor surface to help with the cooling and also keep my e-brake. That is why I have not gone with a wilwood 4piston rear. I was wondering if the 240sx rear rotor would fit on 280zx hub. The only reason why I would put 240sx rear brakes on is to get the Fast Brakes 12" upgraded rotor size. Any ideas for improvement on my brake system would be appreciated. http://www.fastbrakes.com/product_p/fastbrakes%20240sx%20rear%2012.htm Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted October 15, 2012 Share Posted October 15, 2012 The rotor hats have different "offsets". The 280zx I'm sure is deeper (taller or whateveryou want to call it) than a 240sx. That's problem 1. The second problem is that even if it did match up, you'd need to make a bracket to space out the caliper or else it wouldn't even match with the new diameter. Quote Link to comment Share on other sites More sharing options...
eboling Posted October 19, 2015 Share Posted October 19, 2015 Ok, so this thread is old, but I am currently working on a brake upgrade for my s14 suspended s130 and have done a lot of comparing of brake parts from s130, s13, s14, z31, z32, etc. I can tell you that the 82-83 280zx uses the same rear rotor as the 91-98 240sx, and that the 79-81 280zx used a rotor with a much deeper hat. However, the caliper brackets, even though they use the same bolt spacing, have a different height and offset. The 240sx caliper bracket is shorter (about 11mm) and deeper (about 17mm) than the 82-83 z bracket, but probably about the same depth as the 79-81 z bracket. So... Yes, a 4-lug 240sx rotor will fit a 280zx, but the caliper placement might not be correct without a custom adapter. You could also get lucky with another nissan caliper bracket. Several will bolt up with different results such as the 84-89 z31 (same brake pad), and 02-06 b15 (different brake pad) To give you an indication of the ridiculous combinations I have tried, for my s14 suspension project, I am currently running (front) 85 maxima 274mm rotors, 85 z31 brackets, and 93 altima calipers, and (rear) b15 se-r 278mm rear rotors, s14 calipers, s130 brackets, and 17mm spacers. I believe Fastbrakes makes a rear caliper bracket that might work with the 278mm rotors, but they only offer it with their in-house 11" rotors which may or may not be identical to the Nissan 278mm rotors. http://www.fastbrakes.com/product_p/fastbrakes%20240sx%20rear%2011.htm Good luck Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.