Q45 brake upgrade - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Devens240 · 04-06-2008, 08:21 PM

I picked up some rotors and calipers from a 91 infiniti Q45. will these will these fit on my S13? they are for the front btw

sillyvia13 · 04-06-2008, 08:22 PM

yes..
redrill rotor to 4 lug.

SoguRacing · 04-06-2008, 08:24 PM

i believe that year will fit. i did the q45 swap and brakes are awesome. make sure to resurface the rotors before you use them and make sure they are within specs, i think 26mm min or something like that. if you need a bmc upgrade let me know i've got a couple laying around. also...do a search next time, there's plenty of info out there about the q45 brake up grade. direct bolt on. good luck

ALEXTHESUS*PECT · 04-06-2008, 08:25 PM

look here:
#/f/showthread.p...ight=q45+brake

Devens240 · 04-06-2008, 08:27 PM

yeah i know i have to re-drill them. but i have read that 90-96 Q45 calipers will work but on one website it said only 94-96 will work?

joshchewuhh · 04-06-2008, 08:28 PM

theyll fit
you have to cut the weather guard craps to get the rotors to work but they are bolt on

search nextime

ALEXTHESUS*PECT · 04-06-2008, 08:30 PM

one more for you:

Quote:

Originally Posted by mellojoe

I did the q45 brake upgrade. You do NOT need anything special. Just go to AutoZone and buy a loaded pair of calipers and a pair of rotors for a 1995 Infiniti Q45. You can use stock brake lines, and the stock mounts. However, I would suggest picking up a set of braided stainless steel brake lines. Just buy OEM replacement for your 240sx.

I went to tirerack.com and picked up Brembo rotors for the Q45, brake lines for an s14. Then I went to O'Reiley's and picked up a set of loaded calipers for a 1995 Q45. You have to pay a core charge.

But, I returned my s14 front calipers for the core charge. I even told the guy what I was doing, and he was fine with it. However, most people don't know the difference between the s14 and Q45 calipers, so they won't pay attention if you return your s14 calipers as q45 calipers and don't say anything. I'm not suggesting you do this, but I'm sure it would work.

This was for the fronts only. Front calipers + front rotors + brake lines for all corners.

Devens240 · 04-06-2008, 08:33 PM

"IRC it's 92-96...maybe '90-96"

thats what was said thats why im worried lol i got mine off a 91. and i had them turned and i could use a BMC upgrade how much are you asking sogu?

racepar1 · 04-06-2008, 08:33 PM

The only thing that I don't like about the Q brakes is the lack of race pads for them. If it wasn't for that I would be doing this conversion.

ALEXTHESUS*PECT · 04-06-2008, 08:34 PM

you shouldn't have anymore questions when you read this link.

also go 5 lug and get s14 95-95 se rotors for the rear at the same time!

http://www.ka24development.com/brake_upgrades.html

Devens240 · 04-06-2008, 08:37 PM

ok i have reaserched and read tons of Q45 brake swap stuff, what im asking is will 91 calipers fit? some DIY say they will and some say they wont so does anyone have 91 Q45 calipers? sorry to be an ass haha

joshchewuhh · 04-06-2008, 08:37 PM

Quote:

Originally Posted by racepar1

The only thing that I don't like about the Q brakes is the lack of race pads for them. If it wasn't for that I would be doing this conversion.

yaaaaa ditto

theres hawk pads

ALEXTHESUS*PECT · 04-06-2008, 08:40 PM

The ’90-’96 Infiniti Q45 is a V-8 powered 4100 pound beast requiring LARGE brake to stop it safely.

Luckily for 240sx owners, these big brakes bolt right on - all you have to do is remove the heat shield.

Q45 brake calipers have 2-pistons (43mm each compared to a single 54mm piston on the stock calipers), the rotors are 11 inches in diameter and 28mm thick, the larger pads have about 40% more surface area, and the two pistons will give you about 25% more clamping force compared to the stock brakes...

Devens240 · 04-06-2008, 08:44 PM

yeah i have read that its from nicoclub if im not mistaken. but some other DIY's say you can only use 94-96. guess ill have to try them out lol

racepar1 · 04-06-2008, 08:51 PM

Quote:

Originally Posted by joshchewuhh

yaaaaa ditto

theres hawk pads

Only hp+ though, no blues or blacks!

ALEXTHESUS*PECT · 04-06-2008, 08:56 PM

Quote:

Originally Posted by ALEXTHESUS*PECT

you shouldn't have anymore questions when you read this link.

also go 5 lug and get s14 95-95 se rotors for the rear at the same time!

http://www.ka24development.com/brake_upgrades.html

Quote:

Originally Posted by Devens240

yeah i have read that its from nicoclub if im not mistaken. but some other DIY's say you can only use 94-96. guess ill have to try them out lol

noooooot nico. i gave the link already!

articdragon192 · 04-06-2008, 09:01 PM

Quote:

Originally Posted by racepar1

Only hp+ though, no blues or blacks!

I used Endless pads in mine. Endless makes pads for the Q45s.

racepar1 · 04-06-2008, 09:18 PM

Endless is waaaaaayyyyyyyyyyy overpriced though! And I must correct my previous post it is the hps's not the hp+'s.

Neejay · 04-06-2008, 11:02 PM

Quote:

Originally Posted by joshchewuhh

theyll fit
you have to cut the weather guard craps to get the rotors to work but they are bolt on

search nextime

When you do this, don't forget to CHECK YOUR CLEARANCE. I did this, and couldn't figure out why I got a LOUD screeching/scraping noise, even after double checking. Turns out that I didn't peel back (after cutting) enough of it on the inside of the rotor (closest to the engine). It dug an indention into my brand new slotted Q45 rotor -_- Small, not enough to affect performance.

racepar1 · 04-06-2008, 11:07 PM

Quote:

Originally Posted by joshchewuhh

theyll fit
you have to cut the weather guard craps to get the rotors to work but they are bolt on

search nextime

Just remove the dust shields completely. They're not spot welded or anything, just pressed on. All you need ia a flathead screwdriver and a hammer. If you're careful you can remove them without even damaging them.

Devens240 · 04-06-2008, 11:09 PM

ok thanx for all the help! now i just need to upgrade my BMC

Aoshi112 · 04-07-2008, 12:37 AM

you could get carbotech to make you a set of q45 race pads. A bit pricy but from what i've been told, Carbotech brakes are pretty awesome.

smelly240 · 04-07-2008, 05:35 AM

POOOORRRTEEEERRFIIIEEELLLDDD

they make pads :P

yarou · 04-07-2008, 06:12 AM

Quote:

Originally Posted by Devens240

ok thanx for all the help! now i just need to upgrade my BMC

Just adjust your stock BMC so the pedal doesn't hit the floor.

articdragon192 · 04-07-2008, 10:40 PM

Quote:

Originally Posted by racepar1

Endless is waaaaaayyyyyyyyyyy overpriced though! And I must correct my previous post it is the hps's not the hp+'s.

I ran the SS-S and they run 160 retail I believe. Amazing pads. I run those on my Z32 with the stock 26mm aluminum calipers and I have yet to fade the brakes. I've boiled my fluid before even getting to fading the brakes.

ALEXTHESUS*PECT · 04-07-2008, 10:52 PM

Quote:

Originally Posted by Devens240

ok thanx for all the help! now i just need to upgrade my BMC

for the q45 upgrade nothing needs to be done to the brake master cylinder. for the z32 yes, but not the q45 ones. get stainless steel lines, rotors, ichiba 5 lug hubs, and some wheels to get you started.

Neejay · 04-07-2008, 10:54 PM

Quote:

Originally Posted by ALEXTHESUS*PECT

for the q45 upgrade nothing needs to be done to the brake master cylinder. for the z32 yes, but not the q45 ones. get stainless steel lines, rotors, ichiba 5 lug hubs, and some wheels to get you started.

After mine, my brake pedal was squishy and went all the way to the floor (properly bled - speedbleeders all around). I had to adjust my brake pedal stiffness via the brake booster adjust rod.

Devens240 · 04-07-2008, 11:27 PM

ok thankyou, what are some BMC upgrade options? cuz that would do more for me than adjusting to booster correct? btw its a manual S13

04-06-2008, 08:21 PM	#1
Devens240 Zilvia Junkie Join Date: Dec 2007 Location: Washington Age: 32 Posts: 413 Trader Rating: (1) Feedback Score: 1 reviews	Q45 brake upgrade I picked up some rotors and calipers from a 91 infiniti Q45. will these will these fit on my S13? they are for the front btw

04-06-2008, 08:24 PM	#3
SoguRacing Post Whore! Join Date: Nov 2007 Location: (714) Age: 35 Posts: 2,967 Trader Rating: (23) Rides Gallery: SoguRacing Feedback Score: 23 reviews	i believe that year will fit. i did the q45 swap and brakes are awesome. make sure to resurface the rotors before you use them and make sure they are within specs, i think 26mm min or something like that. if you need a bmc upgrade let me know i've got a couple laying around. also...do a search next time, there's plenty of info out there about the q45 brake up grade. direct bolt on. good luck __________________ Pre Tune Checkup! Compression,LeakDown,Vacuum Test $80. Cams Install: $180

04-06-2008, 08:25 PM	#4
ALEXTHESUSPECT Post Whore! Join Date: Oct 2005 Location: Soul cal!! Age: 43 Posts: 4,387 Trader Rating: (5) Rides Gallery: ALEXTHESUSPECT Feedback Score: 5 reviews	look here: #/f/showthread.p...ight=q45+brake __________________ *TEAM SUSPECT**

04-06-2008, 08:28 PM	#6
joshchewuhh Post Whore! Join Date: Jan 2007 Location: brocal! Posts: 3,681 Trader Rating: (56) Feedback Score: 56 reviews	theyll fit you have to cut the weather guard craps to get the rotors to work but they are bolt on search nextime __________________

04-06-2008, 08:34 PM	#10
ALEXTHESUSPECT Post Whore! Join Date: Oct 2005 Location: Soul cal!! Age: 43 Posts: 4,387 Trader Rating: (5) Rides Gallery: ALEXTHESUSPECT Feedback Score: 5 reviews	you shouldn't have anymore questions when you read this link. also go 5 lug and get s14 95-95 se rotors for the rear at the same time! http://www.ka24development.com/brake_upgrades.html __________________ *TEAM SUSPECT**

04-06-2008, 08:22 PM	#2
sillyvia13 BANNED Join Date: Jan 2006 Location: nh Posts: 1,645 Trader Rating: (1) Feedback Score: 1 reviews	yes.. redrill rotor to 4 lug.

04-06-2008, 08:27 PM	#5
Devens240 Zilvia Junkie Join Date: Dec 2007 Location: Washington Age: 32 Posts: 413 Trader Rating: (1) Feedback Score: 1 reviews	yeah i know i have to re-drill them. but i have read that 90-96 Q45 calipers will work but on one website it said only 94-96 will work?

04-06-2008, 08:33 PM	#8
Devens240 Zilvia Junkie Join Date: Dec 2007 Location: Washington Age: 32 Posts: 413 Trader Rating: (1) Feedback Score: 1 reviews	"IRC it's 92-96...maybe '90-96" thats what was said thats why im worried lol i got mine off a 91. and i had them turned and i could use a BMC upgrade how much are you asking sogu?

04-06-2008, 08:33 PM	#9
racepar1 Post Whore! Join Date: Jul 2007 Location: Simi Valley, CA Age: 38 Posts: 9,006 Trader Rating: (106) Rides Gallery: racepar1 Feedback Score: 106 reviews	The only thing that I don't like about the Q brakes is the lack of race pads for them. If it wasn't for that I would be doing this conversion.

04-06-2008, 08:37 PM	#11
Devens240 Zilvia Junkie Join Date: Dec 2007 Location: Washington Age: 32 Posts: 413 Trader Rating: (1) Feedback Score: 1 reviews	ok i have reaserched and read tons of Q45 brake swap stuff, what im asking is will 91 calipers fit? some DIY say they will and some say they wont so does anyone have 91 Q45 calipers? sorry to be an ass haha

04-06-2008, 08:40 PM	#13
ALEXTHESUSPECT Post Whore! Join Date: Oct 2005 Location: Soul cal!! Age: 43 Posts: 4,387 Trader Rating: (5) Rides Gallery: ALEXTHESUSPECT Feedback Score: 5 reviews	The ’90-’96 Infiniti Q45 is a V-8 powered 4100 pound beast requiring LARGE brake to stop it safely. Luckily for 240sx owners, these big brakes bolt right on - all you have to do is remove the heat shield. Q45 brake calipers have 2-pistons (43mm each compared to a single 54mm piston on the stock calipers), the rotors are 11 inches in diameter and 28mm thick, the larger pads have about 40% more surface area, and the two pistons will give you about 25% more clamping force compared to the stock brakes... __________________ *TEAM SUSPECT**

04-06-2008, 08:44 PM	#14
Devens240 Zilvia Junkie Join Date: Dec 2007 Location: Washington Age: 32 Posts: 413 Trader Rating: (1) Feedback Score: 1 reviews	yeah i have read that its from nicoclub if im not mistaken. but some other DIY's say you can only use 94-96. guess ill have to try them out lol

04-06-2008, 09:18 PM	#18
racepar1 Post Whore! Join Date: Jul 2007 Location: Simi Valley, CA Age: 38 Posts: 9,006 Trader Rating: (106) Rides Gallery: racepar1 Feedback Score: 106 reviews	Endless is waaaaaayyyyyyyyyyy overpriced though! And I must correct my previous post it is the hps's not the hp+'s.

04-06-2008, 11:09 PM	#21
Devens240 Zilvia Junkie Join Date: Dec 2007 Location: Washington Age: 32 Posts: 413 Trader Rating: (1) Feedback Score: 1 reviews	ok thanx for all the help! now i just need to upgrade my BMC

04-07-2008, 12:37 AM	#22
Aoshi112 Zilvia Addict Join Date: Aug 2003 Location: Cali Posts: 620 Trader Rating: (5) Feedback Score: 5 reviews	you could get carbotech to make you a set of q45 race pads. A bit pricy but from what i've been told, Carbotech brakes are pretty awesome.

04-07-2008, 05:35 AM	#23
smelly240 Nissanaholic! Join Date: Oct 2006 Location: Philaburbia Age: 43 Posts: 2,137 Trader Rating: (4) Feedback Score: 4 reviews	POOOORRRTEEEERRFIIIEEELLLDDD they make pads :P __________________ HREs on a S13 - check, 6262 - check, Girlfriend.... - nope

04-07-2008, 11:27 PM	#28
Devens240 Zilvia Junkie Join Date: Dec 2007 Location: Washington Age: 32 Posts: 413 Trader Rating: (1) Feedback Score: 1 reviews	ok thankyou, what are some BMC upgrade options? cuz that would do more for me than adjusting to booster correct? btw its a manual S13

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