I am debating on getting new rotors. I am wondering what is best: Cross-drilled & Slotted, slotted only or Cross drilled only.

I have read that cross drilled rotors have a tendency to crack. That has been the only thing I have found about rotors.

Am I going to burn through pads with them, etc...

Anyone have experience with them they care to share?

BTW, I hope this was posted in the right spot as sooner or later a corner carver will need to stop hard right?

 

This is prolly the right spot for the thread.

Generally only cheap cross drilled rotors crack, and it's
usually because of cheap manufactur.

Get some good name brand ones (sorry I don't of any for the
Scion, I only have experience with Porsche) and some good
pads and don't worry about it.

If you can find some. Cryogenicly Tempered rotors are nice,
but expensive!!

Honestly, the box is light enough that the brakes don't heat
up that much (compared to heavier/faster cars), so just get
the best you can afford and not worry about it!

If you happen to find a rear drum to disc brake kit, post here!
I'm really wanting to do that swap!

 

You might try dimpled rotors instead of cross drilled if you're worried about cracking. I have slotted ones on my xB.

 

Thanks for the replies. Maybe I'll just go slotted and call it a day, better safe then sorry haven't to buy another set.

Brake conversion and big brake kit:

 

as long as the cross drilled rotors are chambferred they will be fine it's when theyre just drilled but not chambferred that there's problems.

 

Honestly, it's not going to make a difference whether the rotors are slotted/drilled or not.

 

Do you mean slotted only or crossed-drilled only or slotted and cross-drilled. Are you saying none of the above make a difference?

If so, I'd have to disagree. If you are referring to only on the xB, I won't know for another few days.

 

Just make sure the new ones are just as thick as OEM. You'll run into problems if they are thinner. Also, make sure you break them in properly. Personally, the xB doesn';t need bigfger brakes or a rear disc conversion, more for appearance than performance. All you really need are good pads and synthtic brake fluid if you are going on the track. I'm not an expert, nerver claim to be one, but I did sleep at a Holiday Inn last night.

 

hahahaha. Squirrel is a card


Yea I'd like to know somethings about this also. I've only seen one xB with different rotors (in person) , and it looked badass. I love the look, but I cant justify the money if theyre simply cosemtic and I rely on them to stop me when I'm barreling down I-80 at 140.

 

140mph!?! or 140 kpm!?! In the box?

 

140 mph. Yea Brad, dont you take yours up that high?

I'm cruising at 140 all the time in the xB.
Naw I was jp around about the 140 thing. I've never had the box past 110. (honestly)

It was a controlled enviornment and I was safe about it, so I let loose.
A 140 mile per hour brick on wheels I would love to see it though!

 

Yeah, I think that fastest I got it up to before I let off was around 110mph. And that was downhill. I'd like to salp some Azenis on the box and take it on the track to see how my set-up works on the track.

Out here on Wilcat Road, Mines Road, Patterson Pass, and a few other places, it does nicely.

 

Cross drilled slotted rotors on our cars is only benificial for longer lasting brake pads. Since the car is not made for racing and you are not going to the track; there really isn;t a big worry for cracking on the rotors. Now if you are constantly hard braking everyday and you need to be the first one at the stop light every time, than cracking can come from any rotor; be it cross drilled or OEM. Having cross drilled/slotted rotors does nothing to the braking power on our boxes. The OEM replacement cross drilled slotted just disapates the heat faster than OEM, so the braking power is the same. Your brake pads will last longer though, less heat= less ware and tear.

 

I've had Rotora slotted rotors on my xB since August 2004 & they've been great so far. I autocross occasionally & go to Buttonwillow once or twice a year so I get some use out of em.

One benefit is that Rotora, and many other aftermarket rotors are E-Coated w/ black so they are resistant to rust, and look much better through the wheels than stock rotors which get rusty pretty quick.

 

You're not going to notice any difference with slotted or drilled rotors, except that they look better. In that case, go for drilled.

 

I have to admit, that would look sexy on a box. It would be useless on all Scions vehicles, but it would look sexy. I want a big brake kit for my tC but I'm broke.

 

I disagree. Under heavy braking such as spirited canyon driving, auto-x, or track days your brakes will take longer to overheat, which means either no brake fade, or longer time before brake fade occurs. When matched with some motul fluid and higher temp pads you'll definately outperform a stock scion.

 

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^I do too.

That's why they are cross drilled or slotted, to dissipate heat.

Just beware on some slotted and drilled rotors, if not chamfered properly, they will increase brake pad wear.

 

Site doesn't say, guess i'll see when they get here.

EDIT:
I called them and they are chamfered

 

Usually by brand.

I know Rotoras are good, and I haven't heard anything bad about Pro-slots. I don't prefer the unsealed piston of Wilwood calipers. I know of one shop in SoCal that will cross drill your OEM rotors at a minimal fee.