Z32 caliper trimming - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

CrispKouki · 05-14-2021, 05:40 PM

I just recently put some z32 rotors and calipers on my s14 and my ?stance? wheels hit the outside edge of the caliper. I know the best solution is to get proper offset wheels but I?d like to make this work. My question is, how much of the middle hump on the caliper can I trim down before I get issues?
The pictures I took are with oem Infiniti wheels so they clear nicely.

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ixfxi · 05-14-2021, 10:28 PM

get the right wheels

not much meat on those calipers to shave

Silv1401 · 05-15-2021, 01:45 AM

Hard no. Walls on these are thin, you don't want to make them any thinner.

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*burnsauto* · 05-15-2021, 06:11 AM

Is the use of a small spacer an option? Awhile back I was doing some reading on Brembo's technical side of their website, and they recommend a 3mm minimum clearance on all sides (against the wheel face, and against the barrel of the wheel). Not telling you what to do, just giving out information.

CrispKouki · 05-15-2021, 10:49 AM

Quote:

Originally Posted by burnsauto

Is the use of a small spacer an option? Awhile back I was doing some reading on Brembo's technical side of their website, and they recommend a 3mm minimum clearance on all sides (against the wheel face, and against the barrel of the wheel). Not telling you what to do, just giving out information.

I don?t have the fender clearance for a spacer sadly.

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CrispKouki · 05-15-2021, 10:50 AM

Quote:

Originally Posted by Silv1401

Hard no. Walls on these are thin, you don't want to make them any thinner.

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Loud and clear man thanks

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silviaks2nr · 05-15-2021, 02:41 PM

looking at your pictures I really don't see how it's rubbing.

CrispKouki · 05-15-2021, 03:31 PM

Quote:

Originally Posted by silviaks2nr

looking at your pictures I really don't see how it's rubbing.

Stated above, I have oem Infiniti wheels on for pictures and they clear nicely

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*economix* · 05-18-2021, 06:10 AM

If you trim that area, under hard breaking (track day or say, an emergency), you risk blowing the backing plate off of the pistons. That high hump area is there for rigidity and to reduce flexing during the piston transfer, if you thin that out, the caliper will crack and it will be during a time that you may not have a chance to regret.

Please be safe, be smart, and get spacers or fit the wheel proper. Do not modify the caliper the way you're asking to.

OMFGeofffff · 05-19-2021, 02:27 PM

Personally I would run the smallest spacer possible that will make it clear. If you don't have the fender clearance, then I would adjust the alignment and/or tire size. Which is all reversible unlike shaving down the caliper. Just my .02

05-14-2021, 05:40 PM	#1
CrispKouki Leaky Injector Join Date: Mar 2018 Location: Texas Age: 24 Posts: 96 Trader Rating: (1) Feedback Score: 1 reviews	Z32 caliper trimming I just recently put some z32 rotors and calipers on my s14 and my ?stance? wheels hit the outside edge of the caliper. I know the best solution is to get proper offset wheels but I?d like to make this work. My question is, how much of the middle hump on the caliper can I trim down before I get issues? The pictures I took are with oem Infiniti wheels so they clear nicely. Sent from my iPhone using Tapatalk

05-15-2021, 06:11 AM	#4
burnsauto Premium Member Join Date: Dec 2006 Location: 717, PA Age: 35 Posts: 3,153 Trader Rating: (5) Rides Gallery: burnsauto Feedback Score: 5 reviews	Is the use of a small spacer an option? Awhile back I was doing some reading on Brembo's technical side of their website, and they recommend a 3mm minimum clearance on all sides (against the wheel face, and against the barrel of the wheel). Not telling you what to do, just giving out information. __________________

05-15-2021, 02:41 PM	#7
silviaks2nr Nissanaholic! Join Date: Nov 2004 Location: SC Posts: 2,105 Trader Rating: (10) Feedback Score: 10 reviews	looking at your pictures I really don't see how it's rubbing. __________________ '98 240sx 5spd

05-18-2021, 06:10 AM	#9
economix Premium Member Join Date: Feb 2011 Location: Erie, PA Posts: 185 Trader Rating: (5) Feedback Score: 5 reviews	If you trim that area, under hard breaking (track day or say, an emergency), you risk blowing the backing plate off of the pistons. That high hump area is there for rigidity and to reduce flexing during the piston transfer, if you thin that out, the caliper will crack and it will be during a time that you may not have a chance to regret. Please be safe, be smart, and get spacers or fit the wheel proper. Do not modify the caliper the way you're asking to. __________________ 89 240SX w S14 SR20; 95 JDM 180SX S13 SR20; 09 Acura TL SH; 18 Jaguar XE S

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05-14-2021, 10:28 PM	#2
ixfxi Post Whore! Join Date: Apr 2006 Location: bangin on my chest Account: BANNED #fucksupreme Age: 79 Posts: 5,923 Trader Rating: (3) Feedback Score: 3 reviews	get the right wheels not much meat on those calipers to shave

05-15-2021, 01:45 AM	#3
Silv1401 Zilvia Member Join Date: Jan 2019 Location: Vancouver, WA/Portland, OR, USA Posts: 166 Trader Rating: (1) Feedback Score: 1 reviews	Hard no. Walls on these are thin, you don't want to make them any thinner. Sent from my SM-N986U1 using Tapatalk

05-19-2021, 02:27 PM	#10
OMFGeofffff Zilvia Member Join Date: Jan 2010 Location: Minneapolis MN Age: 32 Posts: 157 Trader Rating: (3) Feedback Score: 3 reviews	Personally I would run the smallest spacer possible that will make it clear. If you don't have the fender clearance, then I would adjust the alignment and/or tire size. Which is all reversible unlike shaving down the caliper. Just my .02