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

TheSparo · 12-23-2003, 04:18 PM

how beneficial are they, ive searched already, but didnt really get a clear answer if there were any detriments to getting the Q45 front brakes on an s13...? anybody have them? i know they're a direct bolt-on and all..

s15dude · 12-23-2003, 06:25 PM

[email protected] has them on his S14, and considering the Q45 was a huge heavy car they brakes prolly work good on a light s13, goodluck!!

Chew Slice · 12-23-2003, 07:11 PM

the Q45 brakes are a 2 piston caliper (i think) as opposed to the shitty 1 piston on the stock 240 brakes so they'll have more bite.

240Stilo · 12-23-2003, 10:54 PM

Phase2Motortrend.com is selling the q45 kit right now and this is what they had to say about it....

"Traditionally most people went with the Z32 brake route because it's easier to find in junk yards and more popular approach. However, most people with the Z32 brakes generally agrees that the Z brakes tends to act like an on/off switch where when one heavily press the brake pedal, front wheels gets locked up too quick.

The Q45 brake calipers selected by Nismo tends to avoid this type of problem, gives user a more definite feel of brake pedal feel where the driver has the ability to modulate the brake pedal to slow down the car without chances of locking up the front wheels too fast."

You can probably piece together your own q45 kit for a little cheaper but your bigest problem would probably be finding someone to redrill rotors to 4 lug. I found the rotors and calipers at a part store for $230 upfront ($170 after I brought them back my calipers as core charge) and depending on the pads you buy it might be around $60 more. THEN!, if you want to go all out you can get some Stainles Steel lines all around and get some better brake fluid. Of course it costs a little over $100 more.

As for performance value, MAN do they ever help. I might have mentioned it before but the only thing hindering my stopping power now are my tires. Yes, you can lock up the tires, but you can also finesse the brakes to control a steady stop. Very good investment in my book.

Zoom8112 · 12-24-2003, 04:47 AM

Quote:

Traditionally most people went with the Z32 brake route because it's easier to find in junk yards and more popular approach. However, most people with the Z32 brakes generally agrees that the Z brakes tends to act like an on/off switch where when one heavily press the brake pedal, front wheels gets locked up too quick.

how true is this though? can anyone confirm??

*HaLo* · 12-24-2003, 06:54 AM

Quote:

Originally posted by 240Stilo

As for performance value, MAN do they ever help. I might have mentioned it before but the only thing hindering my stopping power now are my tires. Yes, you can lock up the tires, but you can also finesse the brakes to control a steady stop. Very good investment in my book.

Did you change the master cylinder and the rear brakes?

Do you have ABS?

Warwick5s · 12-24-2003, 12:52 PM

if you're looking for 4 bolt q45 rotors, fastbrakes.com sells them new, slotted and crossdrilled for $95 a piece.

s15dude · 12-24-2003, 06:54 PM

Quote:

Originally posted by Zoom8112
how true is this though? can anyone confirm??

I have no problem lockin up my z brakes on my s14, the pedal feels soft when u first press it, then when all of a sudden there is mad braking power, it doesnt take much to lock them up, I wish they had more "feel" to them, oh well, I did lock them up on the freeway while doing 80 mph, now I have some nice flat spots on my front tires that make a noise constantly

240Stilo · 12-24-2003, 09:21 PM

Quote:

Originally posted by HaLo
Did you change the master cylinder and the rear brakes?

Do you have ABS?

No I didn't change the master cylinder and I also did not change the rear brakes. The complete list of everything I bought was:

Q45 front rotors and calipers
Russel SS brake lines
Motul 5.1 brake fluid

All this was a little over $300 after I got my core deposit back. I knew someone with access to a drill press so I got the rotors redrilled for free. I did find a place that would redrill the rotors also but they were charging $70, which was more than I paid for the rotors themselves.

No ABS on my 240.

pSY trek · 12-25-2003, 01:35 AM

How's the brake balance? Do the Q45 fronts overpower the stock rear brakes?

-Stanley

240Stilo · 12-25-2003, 02:50 AM

No it doesn't. Like I mentioned before...it really leaves it up to you whether you want to lock up the wheels by stomping out the brake pedal OR coming to a steady stop as usual. Pedal feel is exactly like stock if not a little firmer with the SS lines but overall you might not notice the difference in pedal feel, only stopping power.

andrave · 12-25-2003, 10:26 AM

you guys know that a good braking system doesn't lock up, right?
its a bad thing...

240Stilo · 12-25-2003, 03:29 PM

Quote:

Originally posted by andrave
you guys know that a good braking system doesn't lock up, right?
its a bad thing...

Just in case...for those that don't know, the best way to brake would be at the limit between where your tire still has traction to stop the car and where the tires brake loose and skid. If you're skidding you're not stopping optimally.

I just mention that you can lock up the brakes just to show they do have power.

BuudWeizErr · 12-25-2003, 06:12 PM

I have 30mm aluminum z32 fronts with stock rears, metal pads all around, stainless lines all around, motul 5.1 fluid, 5 lug conversion, speed bleeders and 1" Z32 M/C.

I have yet to lock up my front tires, even under very hard braking at the Willow Springs big track. And I only have 205mm R compounds up front too. Dunno.

240Stilo · 12-26-2003, 12:32 AM

Those tires have more grip and are less likely to break loose than regular street tires, that's why you probably haven't been able to lock them up.

BuudWeizErr · 12-26-2003, 02:07 AM

Quote:

Originally posted by 240Stilo
Those tires have more grip and are less likely to break loose than regular street tires, that's why you probably haven't been able to lock them up.

Yes, but don't most people who are in the market for brake upgrades already running R compound tires? I mean, I would hate to see someone running around with engine and suspension upgrades all over and then some 195/60/15 Conti's or something.

240Stilo · 12-26-2003, 03:06 AM

No, not everyone upgrades tires and especially not to R compound tires (for everyday use that is). R compound tires are recomended for track use only, but for everyday use (street tires) that's where locking up tires becomes our issue.

*HaLo* · 12-26-2003, 08:34 AM

ACtually, I got the upgrade for track usage. I don't want my brake balance to be all f*cked up. I will be running some R compounds on the track.

What pads are you running on the Q45 upgrade? I'm thinking about EBC greenstuff...

240Stilo · 12-26-2003, 08:39 PM

Since I have yet to get myself to an auto-x event, I just use Raybestos ceramic brakes. They're good for what I do, which is just spirited driving on open highways.

Zemus · 12-27-2003, 06:40 AM

So what kind of clearnance issues with wheels, will it fit under stock wheels? What offset is need? Is it more like stock brake clearnance or 4 piston?

ka24ets13 · 01-20-2004, 01:17 PM

so the front brakes are a direct bolt on for the Q45 to the s13 and will fit under the wheels right?

also, are the rear brakes a direct bolt up and also do they fit under the stock wheels?

thanks

*DSC* · 01-20-2004, 01:31 PM

Quote:

Originally Posted by andrave

you guys know that a good braking system doesn't lock up, right?
its a bad thing...

I disagree

If a brake system can't lock up the tires then chances are it is not capable of braking at the limit of your tires. F1 brakes lock

But they have the control (most of the time) to not lock them up and brake at the limit.

I wouldn't have confidence in a brake setup that couldn't lock the tires or engage ABS if you're so equipped.

the240sxer95 · 01-20-2004, 01:39 PM

do you guys perfer abs or non abs? and why? just curious

*DSC* · 01-20-2004, 01:41 PM

ABS cauz I can't drive

Will be learning non-ABS braking at tracks across the east coast this summer

look out

mixxamike · 01-20-2004, 04:37 PM

Do q45 brakes bolt directly to the s14? and what type of SS line do you need? Also, aside from not locking up...are the q45 brakes better than z32 or worse (some specs would be nice)?

Oh...one more thing, is it a good idea to get q45 rear brakes to compliment the fronts?

mellojoe · 01-20-2004, 05:29 PM

Ok. Now, I know with the 300zx brakes, you need to get special stainless brake lines. The fitting to the caliper is different than stock 240sx brakes.

Do the Q45 take the same brake lines?

i've got stainless on all 4-corners of my s14, and I'd LOVE to not have to replace them to get bigger brakes.

thx247 · 01-20-2004, 05:40 PM

If you are not locking the brakes up you either need to get some better pads or learn to brake harder.

**mrmephistopheles** · 01-20-2004, 06:13 PM

mello: Q brakes utilize banjo fittings, so your stainless lines should be just fine.

Redtop_240 · 01-20-2004, 06:32 PM

Still no-one has givin us an offset.....Will it fit under stock wheels?

And this is gonna sound stupid but are the Q45's allready 5 lug? I know most Nissan trucks are 6 lug so I was just wondering......

-Jeff

240Stilo · 01-20-2004, 07:32 PM

Quote:

Originally Posted by mixxamike

Oh...one more thing, is it a good idea to get q45 rear brakes to compliment the fronts?

You'll be fine just using the q45 front brakes. Using the q45 rear brakes will make the pedal mushy and you'll want to upgrade the MC.

Quote:

Originally Posted by Redtop_240

Still no-one has givin us an offset.....Will it fit under stock wheels?

And this is gonna sound stupid but are the Q45's allready 5 lug? I know most Nissan trucks are 6 lug so I was just wondering......

-Jeff

Tonight I will PROBABLY check the clearance issue. I will try to use the spare wheel since I no longer have the stock wheels.

The q45 rotors are 5 lug so unless your 240 is 5 lug you will have to redrill to the 4 lug pattern.

12-23-2003, 04:18 PM	#1
TheSparo Zilvia FREAK! Join Date: Sep 2002 Location: Athens/Chattanooga/ Cookeville/Morristown, TN Age: 36 Posts: 1,141 Trader Rating: (0) Feedback Score: 0 reviews	Q45 brakes how beneficial are they, ive searched already, but didnt really get a clear answer if there were any detriments to getting the Q45 front brakes on an s13...? anybody have them? i know they're a direct bolt-on and all.. __________________ 89 240 SR powered... ummm i promise its stock

12-23-2003, 06:25 PM	#2
s15dude Zilvia Junkie Join Date: Oct 2001 Location: San Diego Age: 37 Posts: 503 Trader Rating: (0) Feedback Score: 0 reviews	[email protected] has them on his S14, and considering the Q45 was a huge heavy car they brakes prolly work good on a light s13, goodluck!! __________________

12-23-2003, 10:54 PM	#4
240Stilo Junkie Join Date: May 2002 Location: Socal Age: 37 Posts: 1,160 Trader Rating: (0) Feedback Score: 0 reviews	Phase2Motortrend.com is selling the q45 kit right now and this is what they had to say about it.... "Traditionally most people went with the Z32 brake route because it's easier to find in junk yards and more popular approach. However, most people with the Z32 brakes generally agrees that the Z brakes tends to act like an on/off switch where when one heavily press the brake pedal, front wheels gets locked up too quick. The Q45 brake calipers selected by Nismo tends to avoid this type of problem, gives user a more definite feel of brake pedal feel where the driver has the ability to modulate the brake pedal to slow down the car without chances of locking up the front wheels too fast." You can probably piece together your own q45 kit for a little cheaper but your bigest problem would probably be finding someone to redrill rotors to 4 lug. I found the rotors and calipers at a part store for $230 upfront ($170 after I brought them back my calipers as core charge) and depending on the pads you buy it might be around $60 more. THEN!, if you want to go all out you can get some Stainles Steel lines all around and get some better brake fluid. Of course it costs a little over $100 more. As for performance value, MAN do they ever help. I might have mentioned it before but the only thing hindering my stopping power now are my tires. Yes, you can lock up the tires, but you can also finesse the brakes to control a steady stop. Very good investment in my book. __________________ -Juan

12-25-2003, 02:50 AM	#11
240Stilo Junkie Join Date: May 2002 Location: Socal Age: 37 Posts: 1,160 Trader Rating: (0) Feedback Score: 0 reviews	No it doesn't. Like I mentioned before...it really leaves it up to you whether you want to lock up the wheels by stomping out the brake pedal OR coming to a steady stop as usual. Pedal feel is exactly like stock if not a little firmer with the SS lines but overall you might not notice the difference in pedal feel, only stopping power. __________________ -Juan

12-25-2003, 06:12 PM	#14
BuudWeizErr Zilvia Member Join Date: Jan 2003 Location: socal. Age: 38 Posts: 213 Trader Rating: (0) Feedback Score: 0 reviews	I have 30mm aluminum z32 fronts with stock rears, metal pads all around, stainless lines all around, motul 5.1 fluid, 5 lug conversion, speed bleeders and 1" Z32 M/C. I have yet to lock up my front tires, even under very hard braking at the Willow Springs big track. And I only have 205mm R compounds up front too. Dunno. __________________ 1989 Nissan 240SX, SR20DET sillbeer.COM : phase2motortrend : Garage Works

12-23-2003, 07:11 PM	#3
Chew Slice Zilvia Member Join Date: Jun 2002 Location: Vancouver, BC Age: 38 Posts: 215 Trader Rating: (0) Feedback Score: 0 reviews	the Q45 brakes are a 2 piston caliper (i think) as opposed to the shitty 1 piston on the stock 240 brakes so they'll have more bite.

12-24-2003, 12:52 PM	#7
Warwick5s Zilvia Junkie Join Date: Sep 2002 Location: Madison, WI Age: 39 Posts: 504 Trader Rating: (0) Feedback Score: 0 reviews	if you're looking for 4 bolt q45 rotors, fastbrakes.com sells them new, slotted and crossdrilled for $95 a piece.

12-25-2003, 01:35 AM	#10
pSY trek Join Date: Jan 2003 Location: redlands Age: 38 Posts: 29 Trader Rating: (0) Feedback Score: 0 reviews	How's the brake balance? Do the Q45 fronts overpower the stock rear brakes? -Stanley

12-25-2003, 10:26 AM	#12
andrave BANNED Join Date: Apr 2002 Location: Burton WV Posts: 2,350 Trader Rating: (0) Feedback Score: 0 reviews	you guys know that a good braking system doesn't lock up, right? its a bad thing...

12-26-2003, 12:32 AM	#15
240Stilo Junkie Join Date: May 2002 Location: Socal Age: 37 Posts: 1,160 Trader Rating: (0) Feedback Score: 0 reviews	Those tires have more grip and are less likely to break loose than regular street tires, that's why you probably haven't been able to lock them up. __________________ -Juan

12-26-2003, 03:06 AM	#17
240Stilo Junkie Join Date: May 2002 Location: Socal Age: 37 Posts: 1,160 Trader Rating: (0) Feedback Score: 0 reviews	No, not everyone upgrades tires and especially not to R compound tires (for everyday use that is). R compound tires are recomended for track use only, but for everyday use (street tires) that's where locking up tires becomes our issue. __________________ -Juan

12-26-2003, 08:34 AM	#18
HaLo from Canada, eh! Join Date: Sep 2001 Location: Montreal, Quebec Age: 42 Posts: 5,199 Trader Rating: (0) Rides Gallery: HaLo Feedback Score: 0 reviews	ACtually, I got the upgrade for track usage. I don't want my brake balance to be all fcked up. I will be running some R compounds on the track. What pads are you running on the Q45 upgrade? I'm thinking about EBC greenstuff... __________________ -> HaLo Race Car: '98 E36 BMW M3 Daily Driver: '08 Fiji Blue Honda Civic Si SOLD: 01 GPW Honda S2000 PARTED: 93 Pearl White 240SX LE Fastback w/SR20DET SOLD*: 93 Super White 240SX SE Convertible w/Silvia Front

12-26-2003, 08:39 PM	#19
240Stilo Junkie Join Date: May 2002 Location: Socal Age: 37 Posts: 1,160 Trader Rating: (0) Feedback Score: 0 reviews	Since I have yet to get myself to an auto-x event, I just use Raybestos ceramic brakes. They're good for what I do, which is just spirited driving on open highways. __________________ -Juan

12-27-2003, 06:40 AM	#20
Zemus Nissanaholic! Join Date: Oct 2001 Location: Minneapols Age: 37 Posts: 2,268 Trader Rating: (0) Rides Gallery: Zemus Feedback Score: 0 reviews	So what kind of clearnance issues with wheels, will it fit under stock wheels? What offset is need? Is it more like stock brake clearnance or 4 piston? __________________ \|Ziptied.com\|Hybrid Z\|D-Town Forum\|Clubfr.net\|

01-20-2004, 01:17 PM	#21
ka24ets13 Join Date: Oct 2003 Location: GA Age: 34 Posts: 2 Trader Rating: (0) Feedback Score: 0 reviews	so the front brakes are a direct bolt on for the Q45 to the s13 and will fit under the wheels right? also, are the rear brakes a direct bolt up and also do they fit under the stock wheels? thanks

01-20-2004, 01:39 PM	#23
the240sxer95 Zilvia FREAK! Join Date: May 2002 Location: cali cali Posts: 1,322 Trader Rating: (0) Feedback Score: 0 reviews	do you guys perfer abs or non abs? and why? just curious

01-20-2004, 01:41 PM	#24
DSC New Title Join Date: Aug 2001 Location: VA Posts: 3,454 Trader Rating: (0) Feedback Score: 0 reviews	ABS cauz I can't drive Will be learning non-ABS braking at tracks across the east coast this summer look out __________________

01-20-2004, 04:37 PM	#25
mixxamike Zilvia Junkie Join Date: Sep 2002 Location: Litchfield, IL Posts: 440 Trader Rating: (0) Feedback Score: 0 reviews	Do q45 brakes bolt directly to the s14? and what type of SS line do you need? Also, aside from not locking up...are the q45 brakes better than z32 or worse (some specs would be nice)? Oh...one more thing, is it a good idea to get q45 rear brakes to compliment the fronts?

01-20-2004, 05:29 PM	#26
mellojoe Zilvia Junkie Join Date: Jan 2004 Location: ARKANSAS Posts: 518 Trader Rating: (0) Feedback Score: 0 reviews	Ok. Now, I know with the 300zx brakes, you need to get special stainless brake lines. The fitting to the caliper is different than stock 240sx brakes. Do the Q45 take the same brake lines? i've got stainless on all 4-corners of my s14, and I'd LOVE to not have to replace them to get bigger brakes. __________________

01-20-2004, 05:40 PM	#27
thx247 Zilvia FREAK! Join Date: Jan 2003 Location: bay area Posts: 1,455 Trader Rating: (0) Feedback Score: 0 reviews	If you are not locking the brakes up you either need to get some better pads or learn to brake harder.

01-20-2004, 06:32 PM	#29
Redtop_240 Zilvia Member Join Date: Dec 2003 Location: Virginia beach, VA. Age: 41 Posts: 207 Trader Rating: (0) Feedback Score: 0 reviews	Still no-one has givin us an offset.....Will it fit under stock wheels? And this is gonna sound stupid but are the Q45's allready 5 lug? I know most Nissan trucks are 6 lug so I was just wondering...... -Jeff __________________ JDM JUNKYARD.NET

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode