Q45 Brake Upgrade!!!

[IanS]

What modification do you need? How is it done? Thanks.

Just cut it off. Its not hard, when you go to install the rotors, you will understand. I cut mine off with a pair of tin snips.

[spooled240]

same here, but it ended up looking pretty ****ty I wish I just removed them. The nismo website says to remove them.

[Warped161]

yeah you will want to cut them as small as possible with snips so they dont look like crap, i was gonna remove mine but it's a pita to do.

[spooled240]

yeah you have to remove the wheel bearings IIRC

[Warped161]

yeah you have to remove the wheel bearings IIRC

yup, and have you seen how big the nut is? plus the fact that it's tightened down to 150 ft lbs x age of vehicle i would never get the dam nut off.

[odmoht]

kool thread...i got a noob question tho =xwhy only the front calipers, why not front and rear??

[TerminalVelocity]

hmm I was looking on my notepad that I write down car modification information that I come across on the web, and I have written down that the 97-01 q45 rotors are 11.6 in whereas the 90-96 were 10.9 in. Anyone know if these later size rotors and calipers can be used on our cars the same as the 90-96 ones?

[Warped161]

kool thread...i got a noob question tho =xwhy only the front calipers, why not front and rear??

Because this upgrade keeps the brake bias close enough that there is no need to change the rear, you stop 60 front 40 rear anyway. if you do change the rear you most likely will be changing the master cylinder as well.
Modified by Warped161 at 11:25 PM 9/24/2008

[got chub]

hmm I was looking on my notepad that I write down car modification information that I come across on the web, and I have written down that the 97-01 q45 rotors are 11.6 in whereas the 90-96 were 10.9 in. Anyone know if these later size rotors and calipers can be used on our cars the same as the 90-96 ones?

i don't know if the 97-01 will bolt up on a 240. they use a similar caliper as the G35 & 350z, the rotor width is larger on the G & Z but the diameter will be the same for the Q. the mount points and off set of the caliper it self will be the same on the Q, G & Z.

i say if you can find a cheap set of calipers and rotors with used pads i say try it and see if it all lines up. i thought about trying the 03+ 350z non-brembo calipers but i didnt want to get all the stuff and it not work

kool thread...i got a noob question tho =xwhy only the front calipers, why not front and rear??

also some people do not want to change over the the drum ebrake assembly. i think people say it is much harder than it really is. you can do it all with in a days work

[White Comet]

kool thread...i got a noob question tho =xwhy only the front calipers, why not front and rear??

your question was already answered, but i jsut got a z31 bmc and next time the rears need pads or anything, im just going to do q rears as well, who knows i might be going 5 lug

[odmoht]

koolio, thanks for answer.i hope to do this upgrade in the future or when i get money haha

[TerminalVelocity]

i don't know if the 97-01 will bolt up on a 240. they use a similar caliper as the G35 & 350z, the rotor width is larger on the G & Z but the diameter will be the same for the Q. the mount points and off set of the caliper it self will be the same on the Q, G & Z.

i say if you can find a cheap set of calipers and rotors with used pads i say try it and see if it all lines up. i thought about trying the 03+ 350z non-brembo calipers but i didnt want to get all the stuff and it not work

I'll do some more research and see what I can find. I think that the added .7 in of diameter would be beneficial for dissipating heat.

[ANVIL]

so for 4 lug, q45 upgrade, i can use 03 SE-R rotors, or 00-06 maxima rotors? can someone confirm the sizes?

i want to do this, but I have 4 lug, and want to avoid re-drilling, but just wondering which is the closest to q45 size

EDIT: NVM ill just go with q45 rotors, calipers, pads and im going to upgrade my lines to ss.
Modified by ANVIL at 9:13 PM 10/3/2008

[White Comet]

why is everyone anti-redrilling? id rather spend 2o mins then go with a thinner rotor

[Razi]

I got mine re-drilled.

Q brakes rock.

[240sx_in_209]

woo.. just picked some q45 calipers today 50 buck and going to ordering some ss lines and slotted rotors....

[odmoht]

question...will these calipers clear my wheels?i have ssr mesh 15x6.5 front +8

[got chub]

re-drilling is very easy. you can do it at home if you want and if you dont feel comfortable doing so you can take them to a machine shop. it shouldnt take them more than 20 mins and no more than 35 bucks.

[homeslicej2]

re-drilling is very easy. you can do it at home if you want and if you dont feel comfortable doing so you can take them to a machine shop. it shouldnt take them more than 20 mins and no more than 35 bucks.

Re-drilling does not pose a risk to the integrity of the rotor. Unless you suck at drilling, slip off/out of the hole, and put a nasty gash in the rotor face.

[ANVIL]

found some pre-drilled ones on eBay as well as some ss lines. havent orded yet, not in a big hurry anymore... car is retired for this year.. it snowed yesterday! also picked up my q45 calipers for 55 shipped! (to alaska even)

[sr kid 88]

is this a good reasonable q45 upgrade?

http://www.jgycustoms.com/240sx/brakes.htm

11 inch Brake Kits for S13 / S14 with Q45 Calipers

S13 11 inch Brake Kitwith Q45 CalipersS13 Q45: 11 inch rotor upgrade with slotted and drilled rotors, pads, calipersPrice - $469

[240sx_in_209]

is this a good reasonable q45 upgrade?

http://www.jgycustoms.com/240sx/brakes.htm

11 inch Brake Kits for S13 / S14 with Q45 Calipers

S13 11 inch Brake Kitwith Q45 CalipersS13 Q45: 11 inch rotor upgrade with slotted and drilled rotors, pads, calipersPrice - $469

not really. i got my whole q45 set up for less than 300q45 calipers new seals and boots-120i got ebay rotors 100 and new pads were 60.

and even if u wanted new calipers they are like 120 at auto zone after the core charge who knows what kind of pad and rotors are those your better off just getting some from a junkyard buying rotors and pads than buying that. Also what i seen u can buy some calipers on ebay they are busted but u can used those as a core charge at autozone.

[Warped161]

you can actually buy whats called a loaded caliper pair from autozone, it comes with pads and freshly rebuilt calipers with all the hardware.

[sr kid 88]

how much do they usually run at autozone for those and would i need i core to exchange?

[240sx_in_209]

how much do they usually run at autozone for those and would i need i core to exchange?

Here is that autozone page i believe those are just the calipers

http://www.autozone.com/N,1440...t.htm

and these would be with everything pads pins everything needed

http://www.autozone.com/N,1440...t.htm

[sr kid 88]

would this be a steal?

http://cgi.ebay.com/ebaymotors...ories

[240sx_in_209]

i would not say a steal but its an average price for them. there is a bunch of q45 at my local pick n pull and mostly all have the brakes and the brake calipers are 25 bucks a peace. But like i said its an average price

[w0nderbr3ad]

question...will these calipers clear my wheels?i have ssr mesh 15x6.5 front +8

I clear my q45 setup with 15x7 +0

[240sx_in_209]

i was wondering i just installed my q45 calipers and rotors and the pedal feel a lil different is that normal with the install or do i need to bleed my calipers some more because i bleed them like crazy so im sure there is no air in it

[EightyNine240SeXi]

I just put on Q45 brake calipers with altima rotors and bled the brakes forever but still have almost no pedal. the master cylinder worked fine before the swap. any ideas?