Simple, but Effective - Brake Mod is Done

marcspaz

~Resigned~
Joined
Aug 18, 2007
Posts
7,638
Reaction score
28
Well, this is probably going to be OLD NEWS for some of our veteran techs and racers, but the newbs (like me) may find this interesting.

I needed to replace my brakes due to normal wear and tear, but I did not want to put stock hardware back in the vehicle. The factory setup is fine for around town, but there were two problems.

1.) The back of my car looked like a diesel car that is covered in soot.

2.) Hitting the brakes at the big end of the 1/4 mile sucked. The brakes would fade almost immediately and I would have to engine-brake to slow the car down enough to use the foot-brake.

Well I have been around the block a few times and knew that ceramic pads would be the way to go. They are low dust and (within limits) braking power improves with heat. However, I had no idea what to do for rotors. I had always used smooth face vented rotors, but I really wanted something more aggressive.

I saw some really nice light weight rotors that were drilled and slotted. I know that these two techniques are used to help vent gases created during braking as well as for cooling. After doing a lot of research I found many people complaining about hair-line crakes after less than 10,000 miles of use. For a race car this wouldn’t trouble me, but I drive this car almost 20,000 miles a year, so that that didn’t seem to be an option.

I also saw some rotors that where slotted and dimpled instead of drilled all the way through, but they have to be zinc plated (or some other form of platting) to avoid rust. If you park your car outside like I do, rust build-up on rotors causes problems for you pads and rotors to say the least. Once the zinc plating wears out, now you have a rust problem. Since I had this problem with the stockers too, I decided to stay away from them. I also stayed away from "Big Brake" kits so I can run 15" at the track.

After doing some research and getting some advice from several people about what was available, I selected PowerSlot slotted rotors and Hawk ceramic pads.

I have heard many people complain about ceramics, but most of the time after digging a bit more, I found that they did not break-in the pads correctly. I can tell you that 150 miles of light city driving was kind of a drag. But to do a good/proper break-in the rotors and the pads at the same time, good Lord was it worth it. Even driving around the neighborhood and on the highway, there is a major difference in performance.

If you use your daily driver to do any spirited driving or enjoy drag/road racing, I would recommend getting the slotted rotors and some ceramic pads! Be patient and do the proper break-in. You will be happy.
 

Herknav

Devil's Advocate
Joined
Apr 29, 2007
Posts
10,992
Reaction score
132
Location
Arkansas
How involved is the install? I assume stock calipers work with the new rotors? Do you have to bleed the brakes if you don't replace the calipers?

<- brake newb
 

don_w

Dyno Numbers - Who Cares?
Joined
Apr 4, 2007
Posts
9,999
Reaction score
103
Location
San Diego, CA
How involved is the install? I assume stock calipers work with the new rotors? Do you have to bleed the brakes if you don't replace the calipers?

<- brake newb
It's a pretty simple job. The stock calipers work fine, and no bleeding is required as long as you don't disconnect the brake lines. I used a bungee cord to hold up the weight of the calipers while I made the swap. The only problem I ran into was that the stock rotors had rusted at the hub, so I needed to "persuade" them with a hammer and WD-40 to come loose. Also, the rear caliper pistons are the screw type, so you need a little tool and a 3/8" ratchet to retract them for the new pads. The front pistons can be pressed back in using the typical c-clamp method.
 

Herknav

Devil's Advocate
Joined
Apr 29, 2007
Posts
10,992
Reaction score
132
Location
Arkansas
It's a pretty simple job. The stock calipers work fine, and no bleeding is required as long as you don't disconnect the brake lines. I used a bungee cord to hold up the weight of the calipers while I made the swap. The only problem I ran into was that the stock rotors had rusted at the hub, so I needed to "persuade" them with a hammer and WD-40 to come loose. Also, the rear caliper pistons are the screw type, so you need a little tool and a 3/8" ratchet to retract them for the new pads. The front pistons can be pressed back in using the typical c-clamp method.

Hmm... little tool? I am not sure Ted is coming out here to help me...

The "typical C clamp" method is just using a c clamp to compress the calipers after installing the pads and rotors right? Do we have a DIY here on it (since I havn't looked, go ahead Doc, tell me to use the search function!).
 

don_w

Dyno Numbers - Who Cares?
Joined
Apr 4, 2007
Posts
9,999
Reaction score
103
Location
San Diego, CA
Hmm... little tool?

There are many kinds ... do a Google search on "disk brake piston tool". You can get one like this for under $10.


kdt3163.jpg




The "typical C clamp" method is just using a c clamp to compress the calipers after installing the pads and rotors right?
Yes, it compresses the piston back into the caliper, so that there is room for the new thicker pads.
 

marcspaz

~Resigned~
Joined
Aug 18, 2007
Posts
7,638
Reaction score
28
How involved is the install? I assume stock calipers work with the new rotors? Do you have to bleed the brakes if you don't replace the calipers?

<- brake newb

It was easy. I mostly took my time, which is why it took me as long as it did. You do not need to bleed the brakes as long as you don't open the lines or bleed screw. There were no problems using the stock calipers.

It's a pretty simple job. The stock calipers work fine, and no bleeding is required as long as you don't disconnect the brake lines. I used a bungee cord to hold up the weight of the calipers while I made the swap. The only problem I ran into was that the stock rotors had rusted at the hub, so I needed to "persuade" them with a hammer and WD-40 to come loose. Also, the rear caliper pistons are the screw type, so you need a little tool and a 3/8" ratchet to retract them for the new pads. The front pistons can be pressed back in using the typical c-clamp method.

+1^^^

There are many kinds ... do a Google search on "disk brake piston tool". You can get one like this for under $10.

Yes, it compresses the piston back into the caliper, so that there is room for the new thicker pads.

I bought that little POS and it did not work. I had to "customize" it to work, and I only got it to compress one caliper half way before the soft metal gave out. After that I used my ball-joint fork and a set of vise-grips... LOL. It fit great!

I am going to buy the right tool from FRPP before I do the next swap.

How the hell do you use one of those things?

You don't...
 

don_w

Dyno Numbers - Who Cares?
Joined
Apr 4, 2007
Posts
9,999
Reaction score
103
Location
San Diego, CA
How the hell do you use one of those things?

I bought that little POS and it did not work. I had to "customize" it to work, and I only got it to compress one caliper half way before the soft metal gave out. After that I used my ball-joint fork and a set of vise-grips... LOL. It fit great!

I am going to buy the right tool from FRPP before I do the next swap.



You don't...
The one I had was round (~2" dia, 1/4" thick), with two nubs on it to fit in the piston, and a 3/8" square hole in the middle It worked great for me. I bought it at NAPA for about $15. I couldn't find a pic of the tool I had... all I could find was that rubik's cube looking thing. haha
 

don_w

Dyno Numbers - Who Cares?
Joined
Apr 4, 2007
Posts
9,999
Reaction score
103
Location
San Diego, CA
LOL... I found a pic of my old brake piston tool. It's that round thing in the right hand drawer. :flamethr:



DSC00675~0.JPG
 

marcspaz

~Resigned~
Joined
Aug 18, 2007
Posts
7,638
Reaction score
28
you can get one like this for $70...



Or the multi fit version for $80



Here are the part numbers.
206-026 (T87P-2588-A)​
 

marcspaz

~Resigned~
Joined
Aug 18, 2007
Posts
7,638
Reaction score
28
What was the alt pulley tool for? Other than for removing the pulley that is. I can't picture replacing that for any reason.
 

don_w

Dyno Numbers - Who Cares?
Joined
Apr 4, 2007
Posts
9,999
Reaction score
103
Location
San Diego, CA
What was the alt pulley tool for? Other than for removing the pulley that is. I can't picture replacing that for any reason.
No, I don't intend on replacing it... I only got it when my alternator went bad, and I needed to get the stock pulley off the new one.
 

TexasBlownV8

Formerly TexasBlownV6
Joined
Apr 4, 2008
Posts
5,019
Reaction score
95
Location
Central Texas
Thanks for the writeup...I'm planning on a brake upgrade this year, and you gave me some options to look more into.
 

marcspaz

~Resigned~
Joined
Aug 18, 2007
Posts
7,638
Reaction score
28
Thanks for the writeup...I'm planning on a brake upgrade this year, and you gave me some options to look more into.

Cool! I wish you luck. I hope this thread helps.

There is a lot of great choices out there. The important part to to know what you are tuning for so you can ensure you get the performance you want.

No, I don't intend on replacing it... I only got it when my alternator went bad, and I needed to get the stock pulley off the new one.

So, the new one didn't come with one, or did it come with the wrong one?

Also, I may be asleep at the wheel here, but when did this happen? ---> "Posts: 12,005,891" I have to call :bs: Or you have been busy with the :spam:... :clap:
 

Support us!

Support Us - Become A Supporting Member Today!

Click Here For Details

Back
Top