Hi, I have 03 Touring Z and recently installed Stock Brembo on my Z.
I have Goodridge SS lines, Turned stock rotors to clean up the surface.
Put brand new Hawk HPS pads.

Me and my buddy bleed about 2 hours and I don't see any more air in the line but car is not really stoppping as it suppose to be.

I test drove my buddy's G35c and it bites better and stops faster/shorter distance.

I have a few idea why it happened but everything is guessing.

1. Stock pads VS HPS pads: maybe HPS doesn't' bite well as stock pads??

2. EBD (Electric Brake Distribution) or something is not balanced since my Z didn't come with Brembo??

3. 2 hours of bleeding. But still air somewhere inside??


If anyone install stock brake to Brembo set up, please help me.

Thanks.

 

well 2 things:

you switched compounds ( i assume you went from stock to ceramic)
and
you need to braek the brakes in. know what i mean? its that B word. Its just a simple process of hard stops and maintaing heat. Its what gets the brake compound onto the CLEAN rotor. It matches the surfaces and will help with braking distances. Thats how the brakes work.


make any sense?

 

Actually, in feeling the stock calipers (non brembo) are much grabbier in feeling then the brembos. They are bit too sensitive i thought. The brembos feel just right, with my HPS pads i just put in with slotted rotors, i feel it grab more than the stock brembo pads/rotor combination, but it's still not as twitchy as the stock not brembo calipers were. You should stop at least the same distance as the stock brake calipers, it's not going to be shorter though, i think early tests shown that. The brembo's are mainly for fade resistance. And yeah like cuxtopher said, try look at stoptechs website for the bedding instructions.

 

Did you bleed each side of the calipers. There are 2 bleeders per caliper, make sure you got them both.

 

yeah, i bleed all 8 bleeders.

 

I tested with G35c and my brembo stops way longer than his G35c.

 

I did about 8-10 forward hard stops and 3 reverse stops to brake in.
Maybe I have to wait about a week or two?

 

What year G35. They put nearly 13" Rotors and the size of the stock caliper is about the size of a Brembo caliper on the 05's. In general both cars have excellent stopping. It's just the fade that they fail at.

 

its 03 G35c.

 

You may still have some air trapped in calipers.

the front calipers are extremely tilted and there are often bubles who get trapped.

the correct procedure to bleed the calipers the first time they are installed is to hold them vertical manually on the rotor and bleed them. Try - Unbolting the front calipers, hold them vertical on rotor(do not brake with nothing on the pistons, you are going to blow them), tap calipers with a rubber mallet, bleed them again, reinstall them.

Also, I hope you didn't let your master cylinder go dry. If you did, it needs to be serviced by dealer.

 

I bleed again yesterday night.
Nothing but clean fluid....

Do I have to bring this to Brake shop to power bleed?

There is no leak and total of over 3 hours of bleeding, nothing but fluid.
My brand new hawk HPS shouldn't be that bad from Stock OEM pads.
My SS line shoulnd't hurt the braking for sure.
Rotors are turned. So its fresh.

Only thing I can think about are..
1. Still air somewhere. Only power bleeding is last hope.
2. EBD (Electric Brake Distribution) is diff. from Toruing and Track Z?

If anyone upgrade Stock to Brembo (and has good stopping power), please help me...

 

I went through a similar problem when I had mine installed. Just give them some time to brake in.It should take no more than 200 miles and I power bled them as well. But if you have no more bubbles you should be alright.

 

Also, when you put in the fresh brakes, it's not going to stop on a dime from day 1, there is a slight break-in period, but bedding definitely helps. Put some miles on it, report back in a week. I think mine felt alright the first day, but after a week a definite improvement. They aren't going to feel rock hard, even with SS lines, these brembo's actually feel softer then the stock parts.

this is pretty much all you have to check
1) you bled the brakes in the correct order
2) no leaks in new ss lines, or rotor seals?
3) no fluid spills on the pads/rotors? Did you clean the rotors with brake cleaner spray when installing?
4) proper bedding of brakes

if you checked all of these and you still are sliding through a stop sign in a week or two, you better have it checked out by a pro.

 

thank you for all the info.
1. i did bleed in correct order
2. no leak what so ever (i check it yesterday)
3. no spillsing fluid on the pads/rotors
i turned my rotors from pro. but don't konw what brake cleaner is. i guess i didn't do that one. - what is it??
4. i bedded on the parking lot. 20-30 miles/hr hard braking etc.

i guess i may need to wait to see what happend about a week from now.

any other idea are welcome.

 

brake cleaner is just a spray to get any oily residue off the rotors or brake parts. My rotors came with a note that said to spray them down with brake cleaner before install, so i assumed they put a light film of oil so it wouldn't rust or something. Since you just had them turned, i doubt your surfaces would be contaminated with oil so you should be okay. Just give it a few miles.

 

you need to do about 10-12 stops from 50-60mph, let it cool for about a half hour and repeat again. It made a HUGE difference when I changed my pads.


Also, as for the feel difference between the brembos and standard brakes, I believe it is due to the master cylinder being the same size for both setups. (Their is a difference in master cylinders for cars with and without VDC, but I believe they are the same size.) The master cylinder size compared to the brake surface area determines the feel of the brakes, so with less surface area, the standards are a lot grabbier.

 

Also,

The master brake cylinder is different (Diff. Part No.) on the Track model than the rest. When I swapped my "Altima" brakes for the Brembos, I measured an additional 5/8" of brake pedal travel. The Brembos don't add any stopping power on the street, but really make the difference on the track with good track pads.

 

I felt the same way after I put the G35 Brembo's on my Z... I also used the stock G35 rotors with Goodridge SS lines and Hawk HPS pads. After the install, I thought they were squishy and had way to much pedal travel. I bled them a second time with no improvements. Then I figured that I should have done a little more research to see if the master cyliner was bigger in the G35. Anyone know?

Now after 500 miles I've just gotten used to the new brakes. In other words, they didn't seem to get better with time.

Please post an update if you find a way to get stronger feel and better performance. I haven't tested it yet but I think in a side by side 60-0mph stop my distance would be longer than the stock setup.

 

I Was considering getting a set of stock brembos to replace my stock brakes but based on what everyone is saying, perhaps I should just get a BBK? I was fade resistance and better stoping power over stock. If I put the stock brembos on, I would initially install them with ss lines and better fluid. Is this worth it? Or should I throw down and extra 1500 or so and get a BBK from rotora or wilwood?

 

HPS Pads to not have as much initial bite as OEM