RDA vs DBA Slotted Brake Rotors

[Cooker]

Um I think it means that the metal got very very hot. Its not a deformation of the disc or that they exceeded there max temp etc. When metal gets to certain temp then it turns blue. Everyone that tracks their car should have a nice blue ring on their discs, its normal. You even get slicks turning blue on the edges where they have got hot.

[lukits01]

I agree with Cooker, I think its normal discolouration, they run hotter because they dont have directional vanes to pump air through them like DBAs do. but in fact the OEM rotors were one of the longest lasting rotors I've ever used.
too bad Honda want a fortune for them.

[Cooker]

Yep, I run OEM rear discs on my EG and I havn't had to change them, ever!
Rumour has it that SPOON discs are just OEM discs with grooves, made by the same manufacturer.

[aaronng]

I agree with Cooker, I think its normal discolouration, they run hotter because they dont have directional vanes to pump air through them like DBAs do. but in fact the OEM rotors were one of the longest lasting rotors I've ever used.
too bad Honda want a fortune for them.

For the Euro, the OEM discs are cheaper than DBA. However, we found that the metal is susceptible to brake pad deposition, which is why many Euro owners complain about brake shuddering. Even on my original rotors, I could see actual raised imprints left behind by my brake pads. Now I am using DBA and I haven't seen the imprints appear.

[kccord]

I use RDA slotted on my CD5, track and street and have a blue ring after a spirited drive. It also develops, very minor surface cracks (3mm lengths and not deep) and occasionally gives me a shudder on light braking. However, once the pads and rotors are at heat they do a great job when you stomp on it.

[VTECMACHINE]

DBA > RDA by far!

For the price of DBA, i'd rather go for Dixcel Rotors.

[EG5]

Here is my 282mm RDA front slotted disc on my EGK24A
Been on 3 x trackday at Wakefield with Project MU HC+ pads , Im about to push it to the 4th track day next week.

[mocchi]

Here is my 282mm RDA front slotted disc on my EGK24A
Been on 3 x trackday at Wakefield with Project MU HC+ pads , Im about to push it to the 4th track day next week.

um.. that is very clean tie rod ends.
and the rotor looks nice, wears nice.
my slotted rda has small pits on rotor face :/

[Cooker]

Wish my RDA's had looked like that after 3 track days. I'd be happy if they looked like that after 1 track day instead of being full of tiny cracks or sometimes they decide to skip the tiny crack faze and just go straight to having one massive crack.
Can I buy your calipers? haha

[fat_85_civic]

abit off topic, but are NSX calipers heavier then ITR calipers?

[EG5]

abit off topic, but are NSX calipers heavier then ITR calipers?

I never actually put them on a scale against ITR calipers

[hiepy]

so i would assume, getting slotted rotors means you can't machine the rotors once there's a lip??

unlike solid ones?? (meaning they last longer?)

applies for cross-drilled too ?

thanks.