Z32 brake clearance query - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

THX1138 · 01-09-2003, 06:46 PM

I know that, generally speaking, the Z32 front brake swap is/has been widely discussed and pretty well-sorted out. But there's one thing I haven't been able to find out through the search tool.

How does one measure to determine if a given set of wheels will clear the Z32 calipers? I know the depth of the spokes comes into play, and the backspacing measurement is mentioned a few times.

Sooo, how do you measure the backspacing, or whatever other critical dimensions there are? I know the stock S13 SE wheels fit over the Z32 brakes, but what about my daily-use 16x7.5 TSW Hockenheim R's?

uiuc240 · 01-09-2003, 07:10 PM

Use a straight edge to measure the distance from the back of the mounting pad to the back of the spoke. I'm not sure how far out from the middle of the wheel the caliper sits (too lazy to go out and measure it).

Eric

AKADriver · 01-09-2003, 07:21 PM

The important dimensions would be:

A. distance from the wheel center to the outside edge of the caliper
B. distance from the wheel center to the 'fattest' point on the caliper (the NISSAN script)
C. distance between the wheel mounting surface and the 'fattest' point on the caliper

as per this diagram:

If anyone with 300ZX brakes can fill those dimensions in, along with the type of caliper (26mm Al, 30mm Al, 30mm Fe), it would be much appreciated!

THX1138 · 01-10-2003, 12:27 PM

Great work so far, guys. Does anybody have/can anybody get the figures mentioned above?

RiceEata · 07-02-2004, 10:42 PM

Did anybody figure out what dimension C would have to be?
My rim has 1" (25mm) from mouting pad to the back of the spoke...I'm trying to figure out if i can use z brakes.

nlzmo400r · 07-03-2004, 12:28 AM

im about to do the 3oozx brake converion (26mm aluminum) ill get the measurements, but it may take a few days. But ill post em asap

RiceEata · 07-03-2004, 02:07 AM

yeah, please let us know...that would help out alot.

thx247 · 07-03-2004, 03:11 AM

If i had a 5 lug 30mm rotor....maybe I'll make one...

derrick · 07-03-2004, 05:22 AM

i've got the z32 brakes being mounted on a friend's s14 tomorrow. they are 30mm so i'll get those measurements for you guys asap. if any of you guys are also looking for parts, check out the GB I am hosting, it's the link in my sig.

RiceEata · 07-06-2004, 10:49 AM

Did anybody figure out dimension C ?

RiceEata · 07-15-2004, 10:56 PM

Anybody?????????

*sykikchimp* · 07-16-2004, 07:56 AM

I'll be swapping my wheels out tomorrow. I'll check that stuff.

speeddreamz · 07-16-2004, 11:31 AM

z32 twinturbo calipers, or the 91+ non turbo z32's will clear the stock 14 SE's ? or do i need a spacer?

derrick · 07-16-2004, 11:33 AM

you'll clear fine speeddreamz, also I'll be getting those measurements soon!

cdlong · 07-17-2004, 06:19 AM

also, get the measurements to either side of the piston housing, like dimension B a little to the left and right. i helped a guy set up a swap where his caliper hit the the wheel on the inside (close to the hub) but there was enough room farther out in the wheel.

just fyi, they were axis sevens (18x7 +40) and he needed a 15 mm spacer.

01-09-2003, 06:46 PM	#1
THX1138 Zilvia Member Join Date: Sep 2002 Location: Clemson, SC Posts: 264 Trader Rating: (0) Feedback Score: 0 reviews	Z32 brake clearance query I know that, generally speaking, the Z32 front brake swap is/has been widely discussed and pretty well-sorted out. But there's one thing I haven't been able to find out through the search tool. How does one measure to determine if a given set of wheels will clear the Z32 calipers? I know the depth of the spokes comes into play, and the backspacing measurement is mentioned a few times. Sooo, how do you measure the backspacing, or whatever other critical dimensions there are? I know the stock S13 SE wheels fit over the Z32 brakes, but what about my daily-use 16x7.5 TSW Hockenheim R's?

01-09-2003, 07:10 PM	#2
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 46 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	Use a straight edge to measure the distance from the back of the mounting pad to the back of the spoke. I'm not sure how far out from the middle of the wheel the caliper sits (too lazy to go out and measure it). Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

07-03-2004, 05:22 AM	#9
derrick Zilvia Junkie Join Date: May 2003 Location: Southern California Age: 42 Posts: 312 Trader Rating: (0) Feedback Score: 0 reviews	i've got the z32 brakes being mounted on a friend's s14 tomorrow. they are 30mm so i'll get those measurements for you guys asap. if any of you guys are also looking for parts, check out the GB I am hosting, it's the link in my sig. __________________ Group Buy for Z32 and OEM Brake Upgrades Front and Rear!! Group Buy for S13/S14 Big Brake Kit??? Group Buy for Stainless Steel Clutch Lines! Only $22 shipped!!

07-16-2004, 07:56 AM	#12
sykikchimp WOW addicted Join Date: Dec 2001 Location: the moon Age: 44 Posts: 6,525 Trader Rating: (0) Feedback Score: 0 reviews	I'll be swapping my wheels out tomorrow. I'll check that stuff. __________________

07-16-2004, 11:33 AM	#14
derrick Zilvia Junkie Join Date: May 2003 Location: Southern California Age: 42 Posts: 312 Trader Rating: (0) Feedback Score: 0 reviews	you'll clear fine speeddreamz, also I'll be getting those measurements soon! __________________ Group Buy for Z32 and OEM Brake Upgrades Front and Rear!! Group Buy for S13/S14 Big Brake Kit??? Group Buy for Stainless Steel Clutch Lines! Only $22 shipped!!

01-09-2003, 07:21 PM	#3
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 43 Posts: 3,518 Trader Rating: (1) Feedback Score: 1 reviews	The important dimensions would be: A. distance from the wheel center to the outside edge of the caliper B. distance from the wheel center to the 'fattest' point on the caliper (the NISSAN script) C. distance between the wheel mounting surface and the 'fattest' point on the caliper as per this diagram: If anyone with 300ZX brakes can fill those dimensions in, along with the type of caliper (26mm Al, 30mm Al, 30mm Fe), it would be much appreciated!

01-10-2003, 12:27 PM	#4
THX1138 Zilvia Member Join Date: Sep 2002 Location: Clemson, SC Posts: 264 Trader Rating: (0) Feedback Score: 0 reviews	Great work so far, guys. Does anybody have/can anybody get the figures mentioned above?

07-02-2004, 10:42 PM	#5
RiceEata Zilvia Member Join Date: Jan 2003 Location: 808 Age: 44 Posts: 226 Trader Rating: (0) Feedback Score: 0 reviews	Did anybody figure out what dimension C would have to be? My rim has 1" (25mm) from mouting pad to the back of the spoke...I'm trying to figure out if i can use z brakes.

07-03-2004, 12:28 AM	#6
nlzmo400r Zilvia FREAK! Join Date: Oct 2003 Location: louisiana Posts: 1,248 Trader Rating: (0) Feedback Score: 0 reviews	im about to do the 3oozx brake converion (26mm aluminum) ill get the measurements, but it may take a few days. But ill post em asap

07-03-2004, 02:07 AM	#7
RiceEata Zilvia Member Join Date: Jan 2003 Location: 808 Age: 44 Posts: 226 Trader Rating: (0) Feedback Score: 0 reviews	yeah, please let us know...that would help out alot.

07-03-2004, 03:11 AM	#8
thx247 Zilvia FREAK! Join Date: Jan 2003 Location: bay area Posts: 1,455 Trader Rating: (0) Feedback Score: 0 reviews	If i had a 5 lug 30mm rotor....maybe I'll make one...

07-06-2004, 10:49 AM	#10
RiceEata Zilvia Member Join Date: Jan 2003 Location: 808 Age: 44 Posts: 226 Trader Rating: (0) Feedback Score: 0 reviews	Did anybody figure out dimension C ?

07-15-2004, 10:56 PM	#11
RiceEata Zilvia Member Join Date: Jan 2003 Location: 808 Age: 44 Posts: 226 Trader Rating: (0) Feedback Score: 0 reviews	Anybody?????????

07-16-2004, 11:31 AM	#13
speeddreamz Zilvia FREAK! Join Date: Jan 2003 Location: San Francisco, California Age: 40 Posts: 1,015 Trader Rating: (0) Feedback Score: 0 reviews	z32 twinturbo calipers, or the 91+ non turbo z32's will clear the stock 14 SE's ? or do i need a spacer?

07-17-2004, 06:19 AM	#15
cdlong Nissanaholic! Join Date: Jun 2003 Location: Colorado Springs Age: 44 Posts: 1,865 Trader Rating: (0) Rides Gallery: cdlong Feedback Score: 0 reviews	also, get the measurements to either side of the piston housing, like dimension B a little to the left and right. i helped a guy set up a swap where his caliper hit the the wheel on the inside (close to the hub) but there was enough room farther out in the wheel. just fyi, they were axis sevens (18x7 +40) and he needed a 15 mm spacer. __________________