aporozco

iTrader: (5)

excuse me for beating this to death but i have searched and did not find the answer to my question.


Will the Q45 calipers fit directly onto the spindle? I know the J30s will. I know they are very similar but i need to order some and want to know which ones to order.

Also I know that I need to milll down the rotor, so where can I take them to be Milled? Someone said Naapa does not do that. THanks ya'll

aporozco

iTrader: (5)

Anyone have any idea?

BLACKonBLACK98

iTrader: (42)

they will both fit but i would reccomend the j30 calipers. they both have the same mechanical specs but the j30 are physically smaller/lighter from the research i did.

speed racer

iTrader: (10)

You need the torque member for either application.

BLACKonBLACK98

iTrader: (42)

yeah... definitely order a loaded caliper. i had a horrible time trying to find the pad holders.

Nealoc187

iTrader: (23)

If you use the maxima torque member with the J30 caliper then all you have to do is a bit of grinding on the max torque member OR make a 1/16" or so spacer and do an even smaller amount of grinding on the max torque member, and you don't have to go through milling the rotors. Alternatively if you mill down the rotors you can use the J30 torque member and avoid doing the grinding on the torque member. Personally I'd do a little grinding on the torque member rather than losing 6-8mm off of the already small diameter rotors.

Read this thread

http://forums.maxima.org/showthread....&highlight=j30

We did this exact same setup on a 4th gen and the procedure was identical.

aporozco

iTrader: (5)

thanks nealoc. i feel like i wanna jjust get the 300zx BBK. it easier, but i need to find some cheap calipers. and do i really need a hub ring if i do the BBK?

Nealoc187

iTrader: (23)

i wouldn't say 300zx is easier, it's just different. you need to use different brake lines with the 300zx brake calipers or else you run the risk of ruining the calipers, still need to mill the rotors, and you need to worry about those wide *** 300zx calipers fitting under your wheels (which is a major issue many times, they stick way out). so either way you go takes some modification and what not. you don't need any rings if you use rotors from another nissan. you only need rings for things like Mustang Cobra rotors.

Jeff92se

iTrader: (82)

Or run the J/Q calipers w/ the 13" Cobra rotors. . I sell the brackets but no longer require the rings if you by Automax's redrilled units.
No grinding of rotors or caliper mounts. It DOES require about 10mm more wheel clearance (width) to run and you need 17" or larger wheels
http://forums.maxima.org/showthread.php?t=351406 13" rotor, j/Q caliper upgrade.
Contact me if you want the brackets ($60 shipped)

speed racer

iTrader: (10)

All you need to do is mill 3 mm on the diameter. 6-8mm is way too much.

Nealoc187

iTrader: (23)

You are incorrect.

3-4mm is off the radius - that means 6-8mm off the diameter (radius x 2 = diameter) I've done that swap, I know what's involved. just 3mm off the diameter is not sufficient.

Big_E-Dog

iTrader: (14)

i can get you calipers,rotors, pads comlpete used setup for 150 shipped if anyone is interested. wont have to redrill holes and stuff just slap em on.

from what i heard i thought that the j30 calipers were bigger than the q45. oh well jsut let us kno what you did prolly post some pics so other ppl can see.

aporozco

iTrader: (5)

can i just put 300zxtt rotors, calipers onto my car? not the bbk. with the same mods for the j30 calipers?

Jeff92se

iTrader: (82)

With either the Z or Q/J calipers, the rotor milling is the same. If you aren't using my brackets.

aporozco

iTrader: (5)

thats awesome. thanks jeff. id get ur brackets but i dont have 17s, and where do they mill rotors?

Jeff92se

iTrader: (82)

Machine shops usually

speed racer

iTrader: (10)

Interesting. I got the swap. 3 mm and that is all. Let me explain. J30 rotors, J30 calipers, J30 torque member, and J30 brake pads = 3mm off diameter also I checked the dimensions. You have experience, I have experience. Please don't say I'm wrong when I did it. Also, reading numbers off a ruler is very simple as I'm an airport engineer.

3 mm off the diameter if your going with the above said setup.

dralucard

iTrader: (6)

are there any benefits to using the J30 rotors vs the stock max rotors? i ask because i did my brakes last year and now want to upgrade w/ the J30 calipers. just don't want to buy another set of rotors. thanks.

speed racer

iTrader: (10)

The j30 rotors are thicker than the Maxima. If I recall its 25mm

Nealoc187

iTrader: (23)

Interesting - when I did the swap we had to go much more than 3mm off the diameter as stated. I bet that means there are perhaps some slight differences in the caliper shape between different J30 model years.

Blackwind

iTrader: (9)

if you can still do this let me know.