First question i have is... will the front hubs of a 300zx work on a 240? i have a 4 lug wanting to go 5...

after i get 5 lug conversion im thinking about doing the 300zx brakes all around. For the front, i will just have to get the 300zx rotor and calipers and wont have to change the spindle, or any suspension parts is that correct? and for the read is it a different story or the same , just rotors and calipers change?

and also would i have to replace the master cylinder to get more power to the brakes or stock 240 master is good to go witht eh swap? thanks

The front brake conversion is pretty common and its a straight bolt in as long as you got rims enough to clear the calipers. The rears I've never heard of being done but it should be a straight bolt in as well. Five lug hubs all the way around and 17" rims and you should be good to go. The 300ZX master cylinder is a good idea, as you are pushing a lot more brake pistons. Also if you are going to do this just buy the calipers then invest an extra bit of cash in this. (http://conceptzperformance.com/Cart/description.php?II=309&Car_Type=300&UID=2004101521445724.19.176.114) But the steel lines in that kit won't mount to the stock 240SX brake line mounts on the body side of things. But you can find after market steel lines with 300ZX caliper mounts and 240SX body mounts.

That's a nice link. I hear the 300zx calipers will work all around, but I'm not sure if the ebrakes will work b/c 300zx's are drum and the 300zx cable is too short for the 240. For this reason, many people just convert the front brakes. But i'd like to know if anyone got ebrakes working. Splicing the cable seems scary, but it's the only option I have found as suggested here http://importnut.net/300zxbrakeswap.htm

After looking through the FSM...I wonder if you could do a complete 300ZX-240SX rear end swap. The differential, drum e-brakes, rear calipers, axles, hubs...etc and so on. That either would solve alot of fitment problems or create alot more.

First question i have is... will the front hubs of a 300zx work on a 240? i have a 4 lug wanting to go 5...

after i get 5 lug conversion im thinking about doing the 300zx brakes all around. For the front, i will just have to get the 300zx rotor and calipers and wont have to change the spindle, or any suspension parts is that correct? and for the read is it a different story or the same , just rotors and calipers change?

and also would i have to replace the master cylinder to get more power to the brakes or stock 240 master is good to go witht eh swap? thanks

1) Z hubs wont work, just get the OEM ones

2) Front only need Z Calipers, Rotors, and adapted brake lines

3) I belive the Z uses Drum parking brakes so you would need the Z uprights and adapted shocks, and then the parking brake cable needs to be moved around to fit.

4) master brake cylinder is not entirely nessicary but it will make the pedal feel tons better.

thanks guys for the replies, its easier to do the front than i thought, i thought maybe i would have to change suspension arms or any other mods, but i guess not, for the back it seems more complicated, and to much work for something not so important. i would love to have those nissan 2 piston calipers in the rear, would sure look really nice and will look good with the fronts... i wonder if i can just swap the Z calipers on the rear and get bigger size rotors...

Are there any after market options for upgrading rear 240 brakes? (Without 300ZX parts)

When I did mt rear conversion, it seemed like the Z32 rear two POT would fit bolt up, but without the HUB conversion, you would loose the E-brake, and thats something not too many RWD owners wan't to do. Now after market, I'm sure if you have the cash, they have the kit. I tried mounting the 4 POT caliper behind, but it backfired.

When I did mt rear conversion, it seemed like the Z32 rear two POT would fit bolt up, but without the HUB conversion, you would loose the E-brake, and thats something not too many RWD owners wan't to do. Now after market, I'm sure if you have the cash, they have the kit. I tried mounting the 4 POT caliper behind, but it backfired.

whats the 2 POT and the 4 POT? so what would you do if you wanted to keep the E brake?

Do you suggest getting the Z rear hubs as well? or what did you mean without the HUB conversion.

On the front swap use S14 front spindles and ball joints on your s13 controll arms. You have to open the holes in your shocks and use s14 strut bolts or have spaces made and use the s13 bolts.

For the rear swap you need the upright with the parking brake and hub. All you have to do is switch everything off the z-upright and onto the s13 upright.

On the front swap use S14 front spindles and ball joints on your s13 controll arms. You have to open the holes in your shocks and use s14 strut bolts or have spaces made and use the s13 bolts.

For the rear swap you need the upright with the parking brake and hub. All you have to do is switch everything off the z-upright and onto the s13 upright.

who said im doing this swap on a S13? did you just get this idea somewhere? because im doing this on an S14 and i have 2 pictures of S14s... but you confused me because S13 has different suspension ...

has anyone measured the braking difference between a stock s14 and one with the 300zx conversion? I'm curious about how much of a difference it makes

has anyone measured the braking difference between a stock s14 and one with the 300zx conversion? I'm curious about how much of a difference it makes


The stopping distance for the stock set-up (best of three tries) 143ft @ 70mph. Stopping distance after the upgrade? 111ft @ 70mph (first try).

Umm ok.
Lets clear up something here
S14 spindles are all the same (4 and 5 lug), so you just need 5 lug hubs all around.
Z32 uses 4pistong (pot) calipers up front, 2piston in rear. The Ebrake is a drum, which basically helps you NOT warping rotors after you rode her hard and put away wet. :D

It was also stated by R.W.240 that
1. Z hubs wont work. That is HALF true. Z FRONT will work, Z rear will NOT.
2. Front only need Z Calipers, Rotors, and adapted brake lines. (and hubs if you dont have 5lug already OR redrill the rotors to 4lug)
3. If you are going with Z uprights in the rear you wont need "adapted shocks" just regular rear 300Z shocks will do.

Hope that helps.