RDA vs DBA Slotted Brake Rotors

**lukits01** · 29-04-2010 10:57 AM

Originally Posted by zco

anyone ever crack some endless or project mu's ?

I've cracked Endless Straight-6 Rotors before, mind you they were 2nd hand when I bought them
and at least they didn't fail spectacularly like RDAs do, they just develop surface cracks that became more obvious the more you abuse them.
I thought I might as well replace them before I push them too far.
A bit disappointed tbh considering the brand name and price.

on another note, here's some pics of my failed RDAs from the past

**Cooker** · 29-04-2010 07:25 PM

Originally Posted by zco

anyone ever crack some endless or project mu's ?

You can crack any rotor buddy if you brake hard enough for long enough, even carbon ceramic discs.
Its when they crack after a very short time, as in my case after 7 laps, that you think hmmmm not using these again.

**6thgear** · 29-04-2010 09:25 PM

dba's > rda's

and thumbs up for slotted

**Alvis** · 30-04-2010 12:20 AM

What a fantastic thread! I would have never thought you'd crack the Endless Straight 6 rotors tho... wow... I'd be disappointed too lol :-)

I rang my local Pedders today and they can source the DBA 4000 Street Slotted rotors for $220 per rotor and about 1-2 weeks for delivery, but I guess what I'm wondering now is about brake pads. My OEM pads still have plenty of wear front and rear (just over 51,000kms on the clock) - so my question is:

Should I stick with the OEM pads with the new rotors? Or get some sports/performance pads? EK1.6LCIV says his are working well with existing OEM pads, but Tarquin changed all his pads and has had good performance too...?

I just want to make sure I'm not buying new pads if I don't need to...

**lukits01** · 30-04-2010 09:30 AM

always use new pads with new rotors

Originally Posted by Alvis

What a fantastic thread! I would have never thought you'd crack the Endless Straight 6 rotors tho... wow... I'd be disappointed too lol :-)

I rang my local Pedders today and they can source the DBA 4000 Street Slotted rotors for $220 per rotor and about 1-2 weeks for delivery, but I guess what I'm wondering now is about brake pads. My OEM pads still have plenty of wear front and rear (just over 51,000kms on the clock) - so my question is:

Should I stick with the OEM pads with the new rotors? Or get some sports/performance pads? EK1.6LCIV says his are working well with existing OEM pads, but Tarquin changed all his pads and has had good performance too...?

I just want to make sure I'm not buying new pads if I don't need to...

**Mugen Civic** · 30-04-2010 02:56 PM

I've been using RDA slotted disc bundled with TRW/Lucas pads for awhile now and its survived two track days. But then my car is powered by a D16 so not a power house.
Haven't cracked or warped yet, must do cool down laps thou, just treat them correctly.
Just my input on the RDA slotted disc. You get what you pay for thou.
I'm pretty sure they are just OEM replacement disc with slots.

**Mugen Civic** · 30-04-2010 02:57 PM

Originally Posted by lukits01

always use new pads with new rotors

I've heard to break in new disc with old pads...

**blabla** · 30-04-2010 03:33 PM

Oem disks are shit had mine turn blue. I have given my rda's the same treatment and heeps more no cracks I've got a coupe as well with some 17's wrapped in proxy 4's

**liberx** · 01-05-2010 08:10 PM

Originally Posted by blabla

Oem disks are shit had mine turn blue. I have given my rda's the same treatment and heeps more no cracks I've got a coupe as well with some 17's wrapped in proxy 4's

On the contrary, I've never had an issue with Honda OEM. Tried Slotted EBC a few years back, and went back to OEM because of constant warping (of EBC).

Get top notch pads first (Ferodo DS2500 for track), high quality fluid (Motul RBF600) before spending on rotors. Of course, if you're after bling, that's another story...

**Mez** · 02-05-2010 08:31 AM

The company i work for actually does some of the machining on DBA rotors (mainly for 60's mustangs) but they have very high quality control and no corners are cut, basically you get what you pay for.

**Alvis** · 02-05-2010 12:09 PM

Agreed. Yes, I bleed brakes every 5-10,000 kms and use Castrol Dot 4.

However, I was worried about using Bendix Advance brake pads on OEM disks? I'm worried the compound of the pads may be too hard for what OEM disks were designed for from the factory (hence why I thought it might be good to upgrade rotors at same time)?

**aaronng** · 02-05-2010 01:31 PM

Originally Posted by blabla

Oem disks are shit had mine turn blue. I have given my rda's the same treatment and heeps more no cracks I've got a coupe as well with some 17's wrapped in proxy 4's

Blue means you went over the temperature that the rotors are meant to do.