Q45 brake upgrade

[Devens240]

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]

yes..
redrill rotor to 4 lug.

[SoguRacing]

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]

look here:
http://www.zilvia.net/f/showthread.php?t=128964&highlight=q45+brake

[Devens240]

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]

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]

one more for you:

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]

"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]

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]

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]

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]

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]

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]

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]

yaaaaa ditto

theres hawk pads

Only hp+ though, no blues or blacks! :down:

[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

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]

Only hp+ though, no blues or blacks! :down:

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

[racepar1]

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

[Neejay]

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]

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]

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

[Aoshi112]

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]

POOOORRRTEEEERRFIIIEEELLLDDD

they make pads :P

[yarou]

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]

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]

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. :bigok:

[Neejay]

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. :bigok:
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]

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