Deciding on a brake upgrade..

[SOCAL91Q45a]

Im a bit confused - one of your plans mentioned "complete" brake system for around $1000. Here's what I found on your link to teh R32 Skyline NISMO system.

1 M-40206-05U02 Rotor Rf $180.00 $137.16 $137.161 M-40206-05U03 Rotor Lf $180.00 $137.16 $137.161 M-41001-05U01 Caliper/rf $350.00 $266.70 $266.701 M-41011-05U01 Caliper/lf $350.00 $266.70 $266.701 41217-40P00 Pin $2.73 $2.08 $2.081 M-46245-05U01 Brake Tube Rf $7.00 $5.33 $5.331 M-43206-05U12 Rotor/rr $180.00 $137.16 $137.161 M-43206-05U13 Rotor/lr $180.00 $137.16 $137.16 Subtal: $1,089.4

That doesnt include pads - the special bracket for $150 or the 2 rear calipers.

Add shipping minus selling our stock q stuff ... where might we end up on a total?

This looks a lot more like $1500 + at the end of the day.

What do these rotor an calipers look like ?

[SOCAL91Q45a]

Is ther a better place to buy NEw R32 Skyline 4 piston calipers? $266 ea is kinda steep - isnt it?

$130 for good rotors seems realistic. Are these OEM's for Z's or after market shizzle?

[SOCAL91Q45a]

Anybody ... BUELLER !!!!

Trying to tell me I gotta go Stillen Brembo kit with the F40's ??? CMON now. Somebody hook a brutha up!

[elwesso]

best to get them used..... Even if you get messed up ones (as long as theyre not physically broken) they can be easily rebuilt..

Im planning on doing whatever i do for 500 or less

[sijoko]

There is a lot of confusion in this thread.

Regarding the Skyline brake upgrade: All you need are the front calipers, front rotors w/ new pads and the install kit (shims, slides and spring).

This is what I have on my car. I bought the parts from Jim Wolf Tech a long time ago. Paid over $1000 for it.

Since then, I have found the web site I referenced in my post. If you order the calipers and rotors from them and get the rest of the stuff from elsewhere, you should have the whole thing done for less than a grand.

The Skyline brakes will bolt up to your Q with no modifications except for larger wheels (minimum of 16"). There is no need for caliper brackets.

-sijoko

[maxnix]

Regarding the Skyline brake upgrade: All you need are the front calipers, front rotors w/ new pads and the install kit (shims, slides and spring).

Maybe so, maybe not. Might want to read http://www.stoptech.com/whitep...e.htm

Unfortunately, they won't do a kit for a G50.

[elwesso]

I read the article brian posted, and that is great information.... You can have all the right parts and if its not balanced, its worthless.....

So im going to try and find the best mix.....

On the Q, in the FSM it lists figures to test the proportioning valve.. Using the values listed we can determine the proportionment and then decide on the best upgrade... My gut feeling is that upgrading the rears is a good start, lets find out...

In the FSM, it lists (on BR-6) that when the front brakes recieve 1067PSI, the rears receive 796PSI.. Thus (assuming im correct) the master cylinder produces 1863PSI total (796+1067)..... Using that figure, 42.72% of the brakes go to the rear, and 57.28% goes to the front..... This also coincides with another value listed in the FSM at the SDS section, under the PT valve it lists a reduction (to the rear) of .4, so we're actually being more accurate than the FSM...

So now we need to calculate clamping force of the stock brakes... Using the formula I found,

CLAMPING FORCE = PISTON SURFACE AREA (ONE SIDE OF ROTOR) x LINE PRESSURE (http://www.thebrakeman.com/psa)

NOTE: My math could be wrong so please correct me if need be. however, even though my numbers may be off, using the same figures we should get equal results (even though the numbers may not be 100% accurate, unless of course they are completely way off)

Using the chart on there, we can calculate the rear clamping force of one rear caliper as approx 1406ft lbs (1.5in/2=radius, .75^2*pi=1.76714) and for the front (using the same math) 4758.654 ft lbs

Clamping force of one stock rear caliper- 1406ft lbs.....Clamping force of one stock front caliper- 4758.654 ft lbs

Now lets compare only the Z32 rear brakes and how that will work up with the stock.....

Basically the rear Z32 calipers have 2 pistons twice as big as the stock Qs, so in essense we should have (1406x2) 2812ft lbs of clamping force...

So lets compare total clamping.. I dont know if this is really a relavent value but total clamping for front and rear (one side I guess) is 6164 ftlbs... With stock fronts and Z32 rears it should be 7570..... A nice boost but is it really worth it, and will it make the car stable and still driveable..?

1406/6164 [stock Q45 brakes all around]=.2282812/7570 [stock fronts, rear Z32s]=.371

What im seeing is that the Z32 rears basically give us 2x the braking power, and thats not including the dynamic load change that will occur... Im thinking that the rear brakes will be too strong....

From what I can tell we are basically increasing the rear braking by 14%, and that will make the rear brake bias a little too strong...

However, the split point on the Z32 proportioning valve of .4 is the same as the Q, so if we do the Z32 fronts everything should be balnaced.....

I really think that this brake upgrade of JUST THE Z32 REAR BRAKES with Q45 front brakes wont work too well.. Against my initial inclination that it will be perfect, i dont think it will be optimal... Im still a little fuzzy on this.....

Please note that I dont realyl know what im doing im just giving it the old college try... please (dennis) read this and give me your comments.....

[elwesso]

Upon further research I found that Z32 front brakes may actually be LESS powerful in clamping force than the Qs...

The Q master cylinder is SIGNIFICANTLY more powerful than the Z32.....

Z32 master cylinder- 853 PSI, front- 526-583, rear

Q45 master cylinder- 1067PSI, front- 796PSI, rear

I am basing ALL of my informaiton that comes from the FSMs... Using my 1994 Q FSM and a 1996 Z32 FSM.....

The cylinder bore diamater in the Z32 fronts is 1.5925in x 2 (odd because theyre 4 pistons, but maybe thats only one side)

The cylinder bore diameter in the Q Fronts is 1.685 x 2

So using those figures, its easy to see the clamping force of the Q fronts will actually be STRONGER... Very interesting stuff here...

Seems that a Z32 guy would want to do a master cylinder upgrade before doing anything else..... Z32 has great brakes and just needs a new MC..

Even if I get to the point where I need less rear action, i can install an inline pressure control valve... The Q stock brakes in the front, besides the width being inadequate for life are more than necessary for daily driving... I can live with a little vibration and when it gets real bad i can upgrade or get new rotors.....

[USsil80]

Upon further research I found that Z32 front brakes may actually be LESS powerful in clamping force than the Qs...

The Q master cylinder is SIGNIFICANTLY more powerful than the Z32.....

Z32 master cylinder- 853 PSI, front- 526-583, rear

Q45 master cylinder- 1067PSI, front- 796PSI, rear

so could we bolt on a q45 master to a s13 brake booster or do we need a brake booster 2...or will the whole thing not bolt on.... becouse more clamping force is always good... i have the 180sx brakes that i got off my clip and they where much larger then the stock..thanks

[Nismo_Freak]

Upon further research I found that Z32 front brakes may actually be LESS powerful in clamping force than the Qs...

The Q master cylinder is SIGNIFICANTLY more powerful than the Z32.....

Z32 master cylinder- 853 PSI, front- 526-583, rear

Q45 master cylinder- 1067PSI, front- 796PSI, rear

I am basing ALL of my informaiton that comes from the FSMs... Using my 1994 Q FSM and a 1996 Z32 FSM.....

The cylinder bore diamater in the Z32 fronts is 1.5925in x 2 (odd because theyre 4 pistons, but maybe thats only one side)

The cylinder bore diameter in the Q Fronts is 1.685 x 2

So using those figures, its easy to see the clamping force of the Q fronts will actually be STRONGER... Very interesting stuff here...

Seems that a Z32 guy would want to do a master cylinder upgrade before doing anything else..... Z32 has great brakes and just needs a new MC..

Even if I get to the point where I need less rear action, i can install an inline pressure control valve... The Q stock brakes in the front, besides the width being inadequate for life are more than necessary for daily driving... I can live with a little vibration and when it gets real bad i can upgrade or get new rotors.....

You are jumping to conclusions way too fast.

1. You will use the stock master cylinder for reasons you mentioned.

2. The Z brakes provide more tons more clamping load as well as more pad area.

Z32 - 4 x 1.5925 diameter pistons - total area = 10.009Q45 - 2 x 1.6850 diameter pistons - total area = 5.2909

Total Area x Effective Pressure = Clamping Load

So the Z32 brakes will have twice the clamping load of the Q45 units.

TBT = Total Brake TorqueP = Line Pressure2u = Friction Coefficient of Pad x Number of Pads (2) A = Total Area of PistonsR = Radius of Force

TBT = P x A x 2u x R

Brake torque is the end all to braking performance when you get down to it. The Z32 uses a larger pad which even further increases it's ability to produce even more braking torque than the stock Q brakes.

Not only that but the Z brakes are 2mm wider in diameter to combat brake fade.

[maxnix]

Not only that but the Z brakes are 2mm wider in diameter to combat brake fade.

I think you mean the solid rotor area is 1mm thicker on each side of the vented area. It's really all about mass when it comes to the rotor staying true under thermal loading. Why Q45 tech has said the gains from the Z32 rotor are not significant enough. They were designed for a 700+ pound lighter car, so something heavier is indicated for the G50.

Nismo_Freak and Elwesso are to be commended for putting pencil to paper rather than the rampant speculation that suffices for discussion on most boards. Keep going, gentlemen.

What I really want to know is which rear Brembos will work with the 332mm fronts that Stillen sells? How about the 355mm front rotors?

[elwesso]

Brian you are correct about the brake fade thing. However, take in mind that the Q brakes are even MORE insufficient because theyre 2mm LESS.... Plus, you can get a new set of rotors for the Z for around 200, for all 4... Generally theyre the good kind, off ebay (brembo http://cgi.ebay.com/ebaymotors...&rd=1)

Lots of stuff to choose from... Z32 brakes, even those drilled brembos, are CHEAPER than OEM brakes...

The bottom line is, its nearly impossible to beat the value and the performance of the Z32 brakes. Yes, its not perfect, but look at it this way.

1. You can sell your Q45 brakes to a 240 guy for about 250 shipped.2. You can get an entire Z32 brake "kit" for under 350, depending on what rotors you use (new or used, i bought used ones intended to get new ones later)...3. The Z32 brakes effectively produce TWICE the stopping power over the stock Q brakes. For under $400, and less if you sell your stock brakes, thats a TREMENDOUS value.. plus pads are no more expensive, and rotors are the same or cheaper. Not so with the skyline brakes or the F50 brakes I tihnk brian is mentioning....4. You can get Z32 tt wheels to clear the brakes, it only needs 16s

Even with really good tires and brake pads, I can sometimes lock up thebrakes on the Q45..... Thus we probably wont see much of a decrease in stopping distances, however, due to the clamping force, it will be a CHAMP on the highway for stopping, where it really needs it..... The panic stops and the BITE factor is really where the Q45 brakes need help.....

I am going to buy some Z32 brakes for the front (already have my rears) and call it a day. The Z32 brake upgrade is GREAT place to start, because with the rears they match up nicely to the R33 GTST or R34 GTT (310x30mm) or R34 GT-R (324x30), or R32 GTR (296x32mm)....

What I fear is that people will buy the skyline brakes and not really see much decrease in anything over the Z32 brakes...

Remember the NUMBER 1 thing in braking is tires TIRES TIRES...... I have a feeling that ill be able to easily lock the brakes up with the Z32 brakes anyway... Mark even said he was able to lock his stock brakes up with bigger wheels and higher performance tires!!!

Brian.... We can calculate which rear brakes would be the best for those rotors if we calculate the total brake torque... The ideal would be to precisely match the stock proportion values of 58(front)/42(rear)..... Z32 brakes provide 2x the clamping force (thus with the same pads) provide 2x the total brake torque..... If you can post up the values for the calipers what Alan posted (for total brake torque), then we can decide what would be necessary. I have a feeling that Z32 brakes in the rear, any way you slice it are going to be a great starting point....

If you dont want to include anything like dynamic weight change (huge factor in the Q), tire coeffecient of friction, brake fade, or anything like that, total brake torque is really what you need to know... To maximize the effectiveness we'd need to have it at the stock ratio...

You were referring to the F50 brakes that stillen sells, yes??? We can calculate with ease which would be best if you simply give us the piston diameter... I think that clamping force is the first way we need to compare things, because we KNOW that pad sweep area is going to be greater (hence bigger rotors), so we know its only going get better from there.....

I believe that for the Q45 the possible stopping distance curve decreases at a decreasing rate. meaning that stopping distances will greatly decrease, and then as you increase other things you will hit a point and never be able to cross it. Eventually you will run out of streetable tire options, since locking up the brakes is pointless.

Alan I appreciate you clearing that up.. For some reason the Z32 FSM only has them listed as 2 piston calipers.....

[maxnix]

Oh I agree. I am more worried about repeated applications and highspeed applications where the rotors get really thermally loaded. Around town it won't make a bit of difference, except to make the car slower and harsher riding.

[elwesso]

If thats really what your after, then I think that the R32 GT-R is the way to go... Basically the same calipers as the Zs (in terms of clamping force) with that extra beef you need for the thermal loading...... Theyre the only nissan brakes that are 32mm wide that are easy to get.

You didnt specify how wide they were... IF theyre still 30mm (which i bet they are) then i dont really think youll be that much better off...

I think you could do it in 3 stages... Stage one brake upgrade would be Z32, Stage 2 would be R32 GT-R and stage 3 would be R34 GT-R...

IMHO I wouldnt go with anything other than nissan brakes, mainly from the cost factor and availablity of parts... All skyline brake sets use Z32 pads.

[maxnix]

Good thought.

The Brembos are 32mm, F40 4 piston aluminum calipers 38mm and 44mm (sequentially sized on each caliper).

[elwesso]

I think the 32mm would be more than sufficient, unless your racing (which i odnt think your doing)

As far as the rear brakes, i think the rear Z32 brakes should be fine... I think what youd want to do with those brakes is use a less powerful master cylinder.... The Z32 master cylinder would be the way to go..... Might just try it with the Q MC and then try the Z one...

Brian I dont understand why you dont just go with the R32 GT-R.. I think those would be more than sufficient (32mm)..

I posted a thread in the moderator forum about something unrelated so I'll share that with everyone here... pretty informative stuff!

m looking to upgrade my Q45 brakes..... Was thinking about using Z32 parts, as I already have Z32 calipers for the rear and Z32 rear rotors...

Does SPL sell skyline brakes.. I saw they have the skyline rotors.. Are there really any appreciable differences between the skyline and Z32 calipers, as far as clamping force... Id save some money by going with Z32 brakes...

Any suggestions?

Post Title:Posted by: Nismo_Freak at 12:42 AM 3/4/2005

You'll need 17's to fit the good GTR brakes and even so the brakes themselves are rare and costly.

You'd be better off doing this:

- Z32 4-Piston Calipers Front- Hawk HPS Pads- New Rotors from 93+ Z32- Home Depot Air Ducts to Brakes

With good ducting you should have little problem with fade in normal street usage.

Oh and gut that pig of a car

Post Title: Re: (Nismo_Freak)Posted by: elwesso at 2:38 PM 3/4/2005

I have 17s anyway, so thats no biggie......

Do you like the "greenstuffs" pads?

Whats the difference between the 93+ and earlier?

Is it easy enough to use R32 GT-R rotors and Z32 calipers?

Post Title: Re: (elwesso)Posted by: Nismo_Freak at 2:43 PM 3/4/2005

Quote, originally posted by elwesso »I have 17s anyway, so thats no biggie......

Do you like the "greenstuffs" pads?

Whats the difference between the 93+ and earlier?

Is it easy enough to use R32 GT-R rotors and Z32 calipers?

Greenstuffs won't work well on the Q.

93+ ensures you will get the 30mm rotors

GT-R rotors are too expensive to get for replacements, I'd stick with Z32 30mm rotors.

Air ducts are the key to making the 30mm rotor work.

Post Title: Re: (Nismo_Freak)Posted by: elwesso at 4:23 PM 3/4/2005

OK well Ill start shopping for some Z32 rotors and calipers.....

Post Title:Posted by: AZhitman at 12:14 PM 3/5/2005Wes - I'm a distributor for RaceShopper.

SP slotted (or drilled) Rotors and Hawk pads...

Check out their site and lemme know what you need.

Post Title: Re: (AZhitman)Posted by: elwesso at 4:09 PM 3/12/2005

Greg can you get me some pads???

Hawk whatever i need..... can you do a combo of Q45 fronts and Z32 rears???

I think im going to just try the rear brakes with the stock fronts?

Does anyone know if rear Z32 brakes will clear the stock 15s?

Post Title:Posted by: AZhitman at 5:35 PM 3/12/2005

They won't clear 15's.

I can get wholesale pricing on Hawk and SP rotors, SS lines and ATE SuperBlue.

Z brakes rear only may be problematic proportionally, esp given your driving conditions in IN.

Post Title: Re: (AZhitman)Posted by: Nismo_Freak at 5:45 PM 3/12/2005

Quote, originally posted by AZhitman »They won't clear 15's.

I can get wholesale pricing on Hawk and SP rotors, SS lines and ATE SuperBlue.

Z brakes rear only may be problematic proportionally, esp given your driving conditions in IN.

He could remedy that with a simple in-line pressure valve.

Post Title: Re: (AZhitman)Posted by: elwesso at 5:48 PM 3/12/2005

I dont konw if you saw my post in infiniti general in the brake upgrade thread but i think this should be good... I didnt post what im about post here though.

The Q front brakes with the Q master cylinder actually have more clamping force than the Z32 with Z32 master cylinder..... The stock Q front brakes have more clamping force any way you slice it (at least as far as Ive investigated) than the Z32 fronts (which is SURPRISING).. I think if we had real good tires in the rear (which is no 1 in braking anyway) we should be OK... Plus, worst case scenario if I dont like it I can just upgrade the fronts... Ive done enough math today to figure out that its at least worth a shot... We're increasing clamping force overall by 14% over stock, and doubling it in the rear..... The Z32 rear calipers are really strong... Basically 2x the clamping power of the rear Q... Read my post and all shoudl be enlightened... Very long.

Long story short, the rears only are at least worth the old college try.....

I dont need rotors, and I dont really want to do SS lines (unless theyre really worth it).. I was just planning on using valvoline fluid since I plan on chaning OFTEN because im getting one of those vacuum pump things...

Post Title:Posted by: J-Spec Tuner at 11:14 PM 3/12/2005

Increased rotor mass is way more important that clamping force if your goal is eliminating brake fade. If you want a good brake bias and better fade protection, do the Z32 calipers and rotors all around with a Z32 master cylinder (if it fits the q45 brake booster).

Post Title: Re: (J-Spec Tuner)Posted by: elwesso at 8:51 AM 3/13/2005Quote, originally posted by J-Spec Tuner »Increased rotor mass is way more important that clamping force if your goal is eliminating brake fade. If you want a good brake bias and better fade protection, do the Z32 calipers and rotors all around with a Z32 master cylinder (if it fits the q45 brake booster).

I am going to maintain using the Q45 master cylinder as it produces quite a bit more effective pressure.....

REally the brake fade from the 28mm Q rotors isnt that bad (fine for street use) so the 30mm Z rotors should be even better..

Basically the way it stands is Ill get 2x the braking power with Z32 brakes... Plus its almost cheaper than rehabbing the stock Q brakes!!!

Post Title: Re: (elwesso)Posted by: repo man at 9:56 AM 3/13/2005

Quote, originally posted by elwesso »

REally the brake fade from the 28mm Q rotors isnt that bad (fine for street use) so the 30mm Z rotors should be even better..

Damn Wes, do you really drive that hard on the street that fade is an issue??? I need to see this...

Post Title: Re: (Nismo_Freak)Posted by: EZcheese15 at 11:21 AM 3/13/2005

Quote, originally posted by Nismo_Freak »

Greenstuffs won't work well on the Q.

93+ ensures you will get the 30mm rotors

GT-R rotors are too expensive to get for replacements, I'd stick with Z32 30mm rotors.

Air ducts are the key to making the 30mm rotor work.

I don't know that the R32 and R33 rotors are the same, but I remember this similar disussion on the GTR mailing list a couple years ago. If I recall, the Z33, V35, and R33 rotors and calipers are all the same. Somebody crossreferrenced all the part numbers.

Post Title: Re: (repo man)Posted by: elwesso at 11:34 AM 3/13/2005

Quote, originally posted by repo man »Damn Wes, do you really drive that hard on the street that fade is an issue??? I need to see this...

One reason why i said the previous violations of the Q werent that big of a deal... i *really* like flogging the brakes..... Ive encountered the fade a little but not that often... When you dont get above 50mph in Anderson hard to be hard on the brakes all the time.....

Quote, originally posted by EZcheese15 »I don't know that the R32 and R33 rotors are the same, but I remember this similar disussion on the GTR mailing list a couple years ago. If I recall, the Z33, V35, and R33 rotors and calipers are all the same. Somebody crossreferrenced all the part numbers.

The thing about the R32 GT-R (NON vspec) is that they are the oddball fo nissan brakes.... They are 32mm wide as opposed to 30mm... The R32 Vspec, R33 GTST, and R34 GTT are all the same, and R33/34 GT-R are the same... The base skylines all use the Z32 brakes or something similar.....

Post Title: Re: (elwesso)Posted by: Nismo_Freak at 12:26 PM 3/13/2005

Quote, originally posted by elwesso »

The thing about the R32 GT-R (NON vspec) is that they are the oddball fo nissan brakes.... They are 32mm wide as opposed to 30mm... The R32 Vspec, R33 GTST, and R34 GTT are all the same, and R33/34 GT-R are the same... The base skylines all use the Z32 brakes or something similar.....

V Spec GTR's all have Brembo calipers.

The R33 GTS25T / R34 GTS25T (GTT as you called it) all have the same Nissan 4-pot calipers.

Post Title: Re: (EZcheese15)Posted by: Nismo_Freak at 12:30 PM 3/13/2005

Quote, originally posted by EZcheese15 »I don't know that the R32 and R33 rotors are the same, but I remember this similar disussion on the GTR mailing list a couple years ago. If I recall, the Z33, V35, and R33 rotors and calipers are all the same. Somebody crossreferrenced all the part numbers.

Z33 and GTR calipers are different.

There was a giant Brembo comparison in a Japanese mag where they compared all the calipers from the EVO, STi, GTR, Z33, etc. in relation to interchangeability (new word haha).

Post Title: Re: (Nismo_Freak)Posted by: elwesso at 2:29 PM 3/13/2005

Quote, originally posted by Nismo_Freak »V Spec GTR's all have Brembo calipers.

The R33 GTS25T / R34 GTS25T (GTT as you called it) all have the same Nissan 4-pot calipers.

Thats what I was saying... The only non brembo GT-R is the R32

I have this PDF file that has all the nissan brake dimensions, and they referr to it as the GTT and ive seen it referred to that on other sites as well.....

BTW Alan, you spell YAO MING as spelled wrong in your sig... YAO instead of YAU

Post Title: Re: (elwesso)Posted by: EZcheese15 at 2:34 PM 3/13/2005

Quote, originally posted by elwesso »

I have this PDF file that has all the nissan brake dimensions, and they referr to it as the GTT and ive seen it referred to that on other sites as well.....

Yeah, also if you have ever seen the back of one, it says GTt on the trunk deck.

Interesting to note that the all the non brembos besides the R32 GT-R <non vspec> use the the same (Z32) calipers in the front..... So you can always upgrade rotors at that time.

[Q45denver]

Would these work?

http://www.tirerack.com/brakes...otors

[elwesso]

Sure dont see why they wouldnt...

[redmanfx]

Wes, you asked me why I don't go with the Z32 brakes and the answer is simple. Too much talking and no-one is getting anything. If I can get 4 rotors, brakes, SS brake lines and pads for around $750ish for 15 inch wheels then I'll buy. I don't want to sit and talk about it, I want my stuff so I can put it on the Q and then I'll let everyone know how they are. You're doing a good job with the research so lets just buy the stuff. What do you say? I'm in..

If you can hook me up then I can start paypaling tonight. If not then I'll just stick with Hitmans package. I just want my brakes and rotors.

red

[elwesso]

Its been done... Squeefoo has done it and they can clear 15in wheels...

Youll need NISMO studs and 1/2in spacer to make them fit...

Get a set of used calipers on ebay, and the brembo rotors off ebay... Top it off with hawk pads and braided lines from hitman (or get rotors pads and lines from hitman) and make it happen.....

Z32 brakes are some of the easiest nissan brakes to get a hold of... Theres a few on ebay right now..

Dont touch these, theyre mine!

http://cgi.ebay.com/ebaymotors...=WDVW

Theres ALWAYS a set of fronts and a set of rears on ebay... Just get the calipers and you can get the rotors new (which are $50 each for brembo as opposed to 80 for OEM Q rotors)

I think you can get this done cheaper than 750 and have one HELL of a brake system. Plus with Z32s that leads you to other future even more golden brake upgrades!

[Jeff Williams]

I have the Z32 rear calipers & pads, and am bidding on some front ones:

http://cgi.ebay.com/ebaymotors...%3AIT

I have a friend with his old tt rotors, that I can use for a test-fit.

As soon as I get the fronts, and get Layla back, I will give it a shot.

[elwesso]

Looks like we'll be doing our upgrades at the same time Jeff...

Ill be doing mine around April as I have to wait until I can put on bigger wheels.....

[redmanfx]

Ha, it seems we all have the same idea about doing our brakes. I have a problem with e-bay and actually winning a bid. Dial up just doesn't do it when all the bids go down in the last minute. Anyone want to bid for me?

So I can get the rotors, braided lines and Hawk pads from Hitman and still get the Z32 brakes? NISMO studs and 1/2 inch spacers? Never heard of them. NISMO is a brand name right?

Squeefoo where can I order these studs and spacers from tomorrow?

red

[maxnix]

Thanks for the quote, but can't make heads or tails of it.

I do wonder why all that is there and not on the board. Kind of like a board within a board. Thanks for bringing it out. Now if there is just something factual there.

If the Z32 calipers are being used with a whole range of differently sized rotors, then the swept area is not what it should be on the larger rotors. While this may be an acceptable compromise on a lighter car, I am not so sure it is desirable on the G50. Anyway, it is still towards the end of the year before I do anything, so the experience of others will be interesting.

[elwesso]

Ha, it seems we all have the same idea about doing our brakes. I have a problem with e-bay and actually winning a bid. Dial up just doesn't do it when all the bids go down in the last minute. Anyone want to bid for me?

So I can get the rotors, braided lines and Hawk pads from Hitman and still get the Z32 brakes? NISMO studs and 1/2 inch spacers? Never heard of them. NISMO is a brand name right?

Squeefoo where can I order these studs and spacers from tomorrow?

red

http://www.nismoparts.com ... Nismo stands for Nissan motorsports.. Its the nissan aftermarket performance parts.....

Nismo is the best "aftermarket" stuff you can get.. The studs are about $60, you want the 300ZX ones..... Im not really familiar with spacers but you need a 1/2 in one... Email squeefoo for more information....

And yes, Greg will be able to get all that junk for you.....

Thanks for the quote, but can't make heads or tails of it.

I do wonder why all that is there and not on the board. Kind of like a board within a board. Thanks for bringing it out. Now if there is just something factual there.

If the Z32 calipers are being used with a whole range of differently sized rotors, then the swept area is not what it should be on the larger rotors. While this may be an acceptable compromise on a lighter car, I am not so sure it is desirable on the G50. Anyway, it is still towards the end of the year before I do anything, so the experience of others will be interesting.

It is hard to follow... The reason I brought it out is because this is a very isolated event... RARELY do discussions like this occur, and i say that in all seriousness.....

The way it works is you read the post, and then at the bottom it tells who posted it..... Instead of the heading of who posted it, and then the post body..... Yes its backwards but oh well......

Most certailny the pad sweep area increases with bigger rotors... I dont see why having 310x30mm over 280x30mm rotors wouldnt be an increase, whether its a litlte 240 or a Q45.....

Brian I know your very excited to do the willwood kit, stillen, brembos or whatever, but I dont really think it will really be that much different. (speculating again, I dont have any specs on any of this stuff, so alas no math, thus no hard evidence)..... Sure it looks cool and most certainly get bragging rights, but certainly if thats what you want to do most certainly.....

I encourage you to email someone so we can get some specs on this...

http://www.splparts.com/doc/GT...t.htm Take a look at that..... Heres a quote from their site

Larger brake rotors, even with stock calipers, can provide a signicant improvement in braking over stock rotors. The larger diameter moves the caliper further from the center of the hub, which gives the caliper more leverage thus increasing brake torque (with the same pedal pressure and pad friction). The larger rotors also have more thermal mass, which reduces brake fade. The big brake rotor upgrade is a very cost effective upgrade that provides real improvements to braking.



We offer a 1-piece slotted or 2-piece (floating aluminum hat) slotted 12.8" rotor from Project Mu designed for the Skyline GT-R (R33/R34) with brackets for relocating the stock 4 piston calipers. Brackets are CNC machined from 6061 billet aluminum with heli-coil inserts.



Note: 30mm calipers required, kit does not work with early 90 model 28mm calipers. 17" wheels are required for clearance. This kit has the same offsets as stock brakes, so the kit will fit with any 17" or larger wheels that fit with stock brakes.



Shown below: 2-piece kit with blank rotors (slotted rotors are standard, blank rotors can be special ordered) inside 17" wheels

[redmanfx]

You would think I should know what NISMO was since I've been here for a while! I guess now I do. I'm ordering from Hitman in just a few minutes. I'll compare NISMO and Midway's prices for the studs and spacers.

Before you put the Calipers on your car you should paint them Bright yellow, so they show through your wheels.

red

[squeefoo]

I understand that you have the z32 brakes on 15 inch wheels or at least Wes says you do. I'm curious as to what 300zx studs you used? 60mm? What kind of spacers? 1/2 inch? Where did you get these things? I'm doing my upgrade soon and have a 92 Q with new OEM rotors. Can you give any advise on my upgrade?

NISMO p/n # 40222-RS045 for studs.

I don't have a source for the spacers, since I bought them from the local parts place. 1/2" spacers cannot be el-cheapos -only solid machined spacers ! Think stock car spacers. Clean the hubs (with the studs out) with a wire brush on a drill, then the same where the rim hits the spacer, use heat sink grease (Radio Shack) on all (now cleaned) surfaces to promote heat transfer out from the rotors and brake fluid. Removal and slight trim of backing plate is necessary for caliper fit, mine are the large aluminum.

Be sure to check the lug nut torque for about a week after installation, stock nuts will fit these studs. These were the only studs that will fit -that I could find anywhere.

I recommend SS brake lines, anything for a 300ZX will fit. Wrap them with spiral wire wrap (Wal-Mart) (black looks the best IMO) to help resist dings from road crap which can degrade the braiding. In the interest of good PM change the fluid (DOT 4) at the same time as the hoses, since you probably needed the hoses anyway. (think PM)

I will be installing front brake ducting very soon as well as J30 rear brakes, oil pressure gauge in the remote oil filter, and a rear strut tower brace

My brakes are very touchy now with just this on so far.

[squeefoo]

3rd Q can vouch for the like-new feel of my Q, from turning to stopping and accelerating.It's super tight all around.

[elwesso]

You would think I should know what NISMO was since I've been here for a while! I guess now I do. I'm ordering from Hitman in just a few minutes. I'll compare NISMO and Midway's prices for the studs and spacers.

Before you put the Calipers on your car you should paint them Bright yellow, so they show through your wheels.

red

Paint them Golden, to match the pinstripe and for reasons obvious to most

Thanks for replying to this Squee, I appreciate your information... I plan on getting a Gtech or borrowing one so I can see the difference, however i dont expect to see a HUGE difference in stopping distances, but it will probably be very stable on the highway which is what it needs.....

I LOVE touchy brakes and I cant wait to do this!

[redmanfx]

Thanks for the info squeefoo!

red