I did it...finally I did it!

[worshhim]

Several months ago, I purchased a set of DBA Drilled/Slotted rotors. They've been sitting in my garage since. I finally said enough is enough and went to it yesterday. Here's some before and after pics.

[worshhim]

More Pics, my son decided he wants to be an addict like daddy...

[fjman]

Nice! Have you noticed better stopping power or performance?

[NocalFJ60]

Where did you get them and how much? They look nice. You should pull your hubs apart and clean them and regrease and repaint the two outside pieces. Just a good time to do it. I kept the dial gold and painted the outside piece black again. Wonder how much air can get to the inner side of the rotors with the backing plates.

[GLTHFJ60]

That looks fantastic!! I'm planning on doing the 4runner calipers, etc, this summer so rotors are on the list. Where did you get them?

[worshhim]

Got them from MAF and yes I wanted to clean all the hub parts, but we're taking off this weekend and I had to get this done before then.

[Tapage]

please do some test and bring us the braking report ..

[wengejor]

There is a write-up around someplace that talks about putting 95 4-runner calipers on the 60. I think they have larger pistons with "better performance". You can get these calipers at A-zone for like 35 bux.

I didn't do this mod, but I contemplated it because all of little rubber seals on my pistons were torn.

[5280Hawk]

Nice Bling, those look really good.

[worshhim]

Thanks...so far so good. I have to be honest, my rotors were so bad before that I can't be quite sure that the improvement is due solely to the new rotors, but...I am pretty sure that they're better than they've ever been. Seem more solid, shorter stopping distance. 4 Runner Calipers next.

[PhilC64]

I like!! D/S rotors with the 4 Runner calipers should make the elephant stop on a dime! What type of pads are you going to run? Ceramics, semi-metallics, or stock? Be careful with the ceramics though, I've had a couple of warped rotors from using them. You might have better luck than I have since yours are D/S.

[worshhim]

The plan is to run OEM pads with the 4 Runner Calipers. I am currently running OEM Pads with the stock calipers. Anyone else out there have ideas. I like the ceramic idea.

[GLTHFJ60]

Originally Posted by worshhim

The plan is to run OEM pads with the 4 Runner Calipers. I am currently running OEM Pads with the stock calipers. Anyone else out there have ideas. I like the ceramic idea.

Gotta get 4-runner pads for the 4-runner calipers.

Isn't the only advantage of ceramic over semi-metallic a reduction in brake dust? I don't know about you guys, but I don't care about brake dust.

[PhilC64]

When I ran the ceramics they allowed for much more braking force without as much heat compared to the semi's. I also noticed less stopping distance using them. The draw back using ceramics is heat dissipation into the rotor but with drilled and slotted rotors that shouldn't be an issue. Ceramics are a bit more cost wise but they were worth it IMHO. My regular car mechanic swears by them.

[toynut]

if you use ceramic pads plan on changing the rotors more often !

[rover67]

i have been using Hawk pads on my truck for a while. stops great with the v-8, stock rotors, 4 runner calipers, and 35's.

Hawk Performance: HPS - High Performance Street Brake Pads

rotors look great after 50k miles so far. I highly recommend them. have not been able to get them to fade, and they bite well when cold.

you can get them at Tire Rack - Your performance experts for tires and wheels for a pretty good price.

[David*BJ70]

Is 4runner calipers/pads swap need 4runner rotor or I can keep the Cruiser rotor ?

[rover67]

you can keep the cruiser rotors. i am runnign stock cruiser rotors.

[David*BJ70]

No matter about keeping the stock Cruiser master with 4runner caliper/rotor ?

[GLTHFJ60]

I don't think it's that big of an issue, but the bigger pistons of the calipers really beg for a larger master, from a T100 for example. Bolts in and has much more volume.

[Spook50]

I have the 4000 series slotted rotors on my rig, and I love 'em. Run them with metal based pads, so they didn't last too long though. This time around I'm using regular Brembo rotors with ceramic pads (I'm using the '92 4Runner calipers) since I've heard the ceramic are damn nice, won't gas out and are quiet.

Using ceramics on the back as well (Monte Carlo calipers), so it'll be interesting to see if there's a reduction in stopping power from the slotted rotors once the new stuff is broken in.

[rover67]

i use the stock master and it works great IMHO

[lehiguy]

Originally Posted by GLTHFJ60

I don't think it's that big of an issue, but the bigger pistons of the calipers really beg for a larger master, from a T100 for example. Bolts in and has much more volume.

Guys, lets do some basic math. The mechanical advantage you have when pushing on the brakes is basicly the volume of the area behind the pistons in your calipers divided by the volume of the fluid you displace from the master cylinder. Going to a larger diameter caliper piston, you indeed gain brake power at the expense of pedal travel. Now if you enlarge them both, the master cylinder and the caliper piston diameter, you may very well end up right where you started only without any money left.

[GLTHFJ60]

Originally Posted by lehiguy

Guys, lets do some basic math. The mechanical advantage you have when pushing on the brakes is basicly the volume of the area behind the pistons in your calipers divided by the volume of the fluid you displace from the master cylinder. Going to a larger diameter caliper piston, you indeed gain brake power at the expense of pedal travel. Now if you enlarge them both, the master cylinder and the caliper piston diameter, you may very well end up right where you started only without any money left.

You would end up right where you started in terms of pedal travel, but the larger volume of fluid pushed through the larger master cylinder would mean that you have a greater potential for stopping power. More volume in the caliper with the same at the master cylinder = less pressure. Upgrade both retains the stock pedal travel with more stopping power.

My thought, but then again I haven't done the swap yet. Experience only from what I've read.

[lehiguy]

Originally Posted by GLTHFJ60

You would end up right where you started in terms of pedal travel, but the larger volume of fluid pushed through the larger master cylinder would mean that you have a greater potential for stopping power. More volume in the caliper with the same at the master cylinder = less pressure. Upgrade both retains the stock pedal travel with more stopping power.

My thought, but then again I haven't done the swap yet. Experience only from what I've read.

If you change the math around to a situation where you are pushing more fluid into the calipers, (and this would be best expressed as a ratio) the pedal would decrease in travel but increase in firmness and you would lose braking ability simply becuase you would have to push harder on the pedal to achieve tha same pressure at the caliper. It's a mathematical fact that a smaller master cylinder diameter would increase the pressure at the caliper. So would a larger diameter caliper piston. The best scenario, and one that has yet to be achieved, are larger diameter rotors and a caliper location to accomodate that change. I only wish my Cruiser could stop like my BMW which weighs less and has far bigger rotors.