View Poll Results: Have you gotten the "woot-woot" (brake-related) when turning
Voters: 13. You may not vote on this poll
Have a z32 front brake upgrade, step in.
06-22-2007, 08:08 AM
#1
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Have a z32 front brake upgrade, step in.
After exhausting all options (shims, angled shims, spacers, rebuilt calipers, etc) I'm still getting the notorioius "woot-woot-woot" sound when making turns (only in one direction).
- I know it's not a wheel bearing...they have been replaced
- It's directly brake-related. Lightly touching the brakes makes it go away
- I think it has to do with the caliper flexing and the pad or caliper touching the rotor when turning sometimes
- Only happens when they're pretty warm.
I suspect this may have been the reason Nissan switched to the Iron calipers after the first 1 1/2 years on the z32
SO....answer the poll!
- I know it's not a wheel bearing...they have been replaced
- It's directly brake-related. Lightly touching the brakes makes it go away
- I think it has to do with the caliper flexing and the pad or caliper touching the rotor when turning sometimes
- Only happens when they're pretty warm.
I suspect this may have been the reason Nissan switched to the Iron calipers after the first 1 1/2 years on the z32
SO....answer the poll!
06-23-2007, 09:29 PM
#6
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Originally Posted by VIP Maxima
i love it. when i was shopping for this upgrade, everyone was praising them. as soon as i broke the setup in, i hear about all these problems with them
This 'problem' does not affect performance or safety, and only happens some of the time. you can't even hear it if you have the radio on....
the only other options are:
stock (sucky braking)
name-brand BBK ($1000+)
the noise is a small tradeoff for the upside of the z32 setup. But now I'm ready to solve the noise problem.
06-23-2007, 09:57 PM
#7
Yea it is a RANDOM noise so it should be able to be fixed since it doesnt happen all the time. For me, it doesnt matter if the brakes are hot or cold, it can even happen when I am driving strait and then stop when I make a turn or tap on the brakes.
06-23-2007, 10:50 PM
#8
I had that problem with my TTZ calipers too. Aluminum ones, Brembos don't make that sound Josh 
Did a quick 1XXMPH stop today to get a feel for what these things can do at "track speeds".... whoa it was like hitting a wall ! Crazy *** bite !
Did a quick 1XXMPH stop today to get a feel for what these things can do at "track speeds".... whoa it was like hitting a wall ! Crazy *** bite !
06-24-2007, 07:08 AM
#9
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Originally Posted by BlackBIRDVQ
I had that problem with my TTZ calipers too. Aluminum ones, Brembos don't make that sound Josh
!
!
I'm pretty much stuck with the z32 setup, as I spent quite a bit of cash on the 2pc rotors and doesn't seem like any other calipers will work with them.
After chatting yesterday with my dad while visiting, I am more and more convinced that the aluminum caliper (vs.iron) is the culprit. He has been working on cars for about 40 years and also has a number of engineering degrees, and was pretty sure it was due to "lack of flex rebound" on the caliper or something to that effect.
06-24-2007, 07:52 AM
#11
Josh,
http://cgi.ebay.com/ebaymotors/BRAKE...34067057QQrdZ1
It might need some bracketry to make work, but you won't know till you try to mount them up.
BTW offset of the Brembos is the same as stock, meaning the rotors are same amount of space away from my spokes on my wheels- stock vs Brembos.
I measured it out because I was worried the calipers wouldn't clear the spokes.
http://cgi.ebay.com/ebaymotors/BRAKE...34067057QQrdZ1
It might need some bracketry to make work, but you won't know till you try to mount them up.
BTW offset of the Brembos is the same as stock, meaning the rotors are same amount of space away from my spokes on my wheels- stock vs Brembos.
I measured it out because I was worried the calipers wouldn't clear the spokes.
06-24-2007, 08:44 AM
#12
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Originally Posted by BlackBIRDVQ
Josh,
http://cgi.ebay.com/ebaymotors/BRAKE...34067057QQrdZ1
It might need some bracketry to make work, but you won't know till you try to mount them up.
BTW offset of the Brembos is the same as stock, meaning the rotors are same amount of space away from my spokes on my wheels- stock vs Brembos.
I measured it out because I was worried the calipers wouldn't clear the spokes.
http://cgi.ebay.com/ebaymotors/BRAKE...34067057QQrdZ1
It might need some bracketry to make work, but you won't know till you try to mount them up.
BTW offset of the Brembos is the same as stock, meaning the rotors are same amount of space away from my spokes on my wheels- stock vs Brembos.
I measured it out because I was worried the calipers wouldn't clear the spokes.
to OP, i will pay attention to this when i get the car back on the road.
06-24-2007, 01:45 PM
#13
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well, I just ordered a pair of NHT rebuilt iron calipers ($200 for the pair, powdercoated!). So in a week or so, I'll be able to tell you guys if it's the aluminum caliper to blame or if it's still something else.
06-24-2007, 04:08 PM
#17
06-24-2007, 05:07 PM
#18
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Originally Posted by VIP Maxima
NHT's are custom ordered so expect to wait a few weeks !
06-24-2007, 06:39 PM
#19
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NOTE: NHT Color Brake Calipers are special order. Please allow 7 days for red brake powder-coated calipers to ship and 21 days for black, yellow or silver
http://www.buybrakes.com/store/24X00614
their major distributor is 20 miles away from me, i even called to go to pick up a set and they told me they arent open to public and its special order.
06-24-2007, 06:58 PM
#20
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Originally Posted by VIP Maxima
its special order because of the powder coating option ! pretty sure same thing applies to anywhere else u get them from.
http://www.buybrakes.com/store/24X00614
their major distributor is 20 miles away from me, i even called to go to pick up a set and they told me they arent open to public and its special order.
http://www.buybrakes.com/store/24X00614
their major distributor is 20 miles away from me, i even called to go to pick up a set and they told me they arent open to public and its special order.
I would think they'd have some ready to ship on-hand...it's not like they're doing any "custom" colors or anything...
06-24-2007, 08:04 PM
#21
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btw, found this on a z32 discussion board. Note the second sentence.....this is the first I've actually seen this in print, even though I've suspected it.
'92: Driver's airbag made standard.
Brake caliper material changed from aluminum to iron, to help warpage/shimmy problems.
Dash/door complimentary material changed from fabric to suede.
Separate mirror heater switch eliminated (combined with rear defroster switch)
Mirror heaters made standard.
Power adjustable driver's seat standard on T-top.
Sales: 6,708
'92: Driver's airbag made standard.
Brake caliper material changed from aluminum to iron, to help warpage/shimmy problems.
Dash/door complimentary material changed from fabric to suede.
Separate mirror heater switch eliminated (combined with rear defroster switch)
Mirror heaters made standard.
Power adjustable driver's seat standard on T-top.
Sales: 6,708
06-25-2007, 05:00 AM
#23
Originally Posted by irish44j
Brake caliper material changed from aluminum to iron, to help warpage/shimmy problems.
link one
link two
link three
link four
06-25-2007, 12:38 PM
#24
Old Fuddy Duddy
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Hmm. I have the Z32 as part of Matts kit. I am using stock 06 rotors and OEM pads.
I dont track the Maxima but the only noise I get from time to time is when its a "cold" start (it sits a lot in the summer) I can hear the pad and the disk touch and then it goes away after an application or two of brakes.
I know this sounds stupid but can someone better identify the noise? The noise I hear is more of a scratching noise while the description I am reading in this thread has more of a squeek to it?
Lovely, now I have to see if I have an issue.
I dont track the Maxima but the only noise I get from time to time is when its a "cold" start (it sits a lot in the summer) I can hear the pad and the disk touch and then it goes away after an application or two of brakes.
I know this sounds stupid but can someone better identify the noise? The noise I hear is more of a scratching noise while the description I am reading in this thread has more of a squeek to it?
Lovely, now I have to see if I have an issue.
06-25-2007, 05:23 PM
#25
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The noise we're referring to is kind of a "WOOT-WOOT-WOOT" at the speed of the wheel. Usually when turning, but sometimes straight line too. Sometimes it will just go away for weeks, months and just come back.
Totally out of ideas as to "why" but hopefully the iron calipers will fix it, because it is wicked annoying!
Totally out of ideas as to "why" but hopefully the iron calipers will fix it, because it is wicked annoying!
06-25-2007, 05:32 PM
#26
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In the beginning, Nissan made and aluminum caliper that was rather stylish. It had raised letters saying "NISSAN" that were epoxy coated. (a la Porsche) These aluminum calipers had steel pistons. The caliper would get hot from braking and the aluminum would expand at a faster rate than the steel. The steel pistons would no longer glide in their aluminum bores, they would @#$%& and cause the rotors to warp. At one time I had three different sets of rotors that people (vendors) had sold me to solve this problem. They all warped. I had crossed drilled, slotted, and of course the plain replacement rotors.
As a former 300ZX owner let me put my input on this... I saw a huge difference in the number of people with rotor warping problems... most people with the problems of warped rotors had 1990-1992 300ZX's. Warped rotors on a 93+ 300ZX was very uncommon. I was on twinturbo.com/twinturbo.net (300ZX message forum) for over 5 years. Something to think about...
the common thread here appears to be that the aluminum calipers are problematic at best and haven't seen ANY complaints from people running the iron calipers anyplace I've looked (and there are ALOT more z32s with iron calipers than aluminum, to boot).
06-25-2007, 08:17 PM
#31
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Originally Posted by 2slow4u
What years did the Aluminum Z32 brakes come or were they only the TT's? I have a set of a N/A Z32 so just trying to verify. I'm in the process of rebuilding them
06-26-2007, 05:36 PM
#34
Originally Posted by irish44j
After exhausting all options (shims, angled shims, spacers, rebuilt calipers, etc) I'm still getting the notorioius "woot-woot-woot" sound when making turns (only in one direction).
06-26-2007, 05:42 PM
#35
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Originally Posted by Kevlo911
Just great 
I hope I can sell my alu ones on ebay for 200+
I will order some after you get yours tho Irish,.
I hope I can sell my alu ones on ebay for 200+
I will order some after you get yours tho Irish,.
06-26-2007, 05:50 PM
#36
Originally Posted by VIP Maxima
you have nothing to worry about. i have seen plenty of suckers pay upward of 300 bux for painted calipers on ebay. i say you auction it up at 310 + 40 shipping. that should put a nice 300 bux back in your pocket after shipping, ebay and paypal fees. considering the iron ones go for 220, you can make 80 bux too. i should just do this too then huh? lol
We have to do it at different times so we can make the most amount of money
06-26-2007, 06:00 PM
#37
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Originally Posted by soundmike
Although i'm starting to believe it's the caliper flexing, it also ocurred to me. Would it be possible that the bolts attaching the two halves of the caliper is loose? Or perhaps, the rings inside were not properly placed during assembly that it might be giving a little?
What do you mean "the rings inside"....the pistons? If so, I had all new pistons and seals on the set I rebuilt...
06-26-2007, 07:13 PM
#38
I meant the smaller "O" rings when you separate the piece. Apparently, splitting open the calipers tend to have issues if the rings aren't set right, or if they're not replaced.
From the how-to
From the how-to
06-26-2007, 07:22 PM
#39
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Originally Posted by soundmike
I meant the smaller "O" rings when you separate the piece. Apparently, splitting open the calipers tend to have issues if the rings aren't set right, or if they're not replaced.
From the how-to
From the how-to
Also, I did not split open any of the calipers...so didn't mess with the o-rings at all. I would think that would only cause a fluid leak....