Swapping rotors for the track?

[Trakdze]

Question for the folks tracking GT350's....are you swapping rotors for the track or just swapping pads?

 

[DocWalt]

I just swapped pads and cleaned the rotors with a brake rotor hone, but I got really bad pad deposits on the front rotors. The rears don't seem to care and worked fine. I'll swap rotors in the future since I got my original set of rotors cut and rebedded them with the track pads.

 

[The_Dead_Cow]

OEM has been working for me (rotors and pads).

 

[DocWalt]

FWIW I will probably just run OEM rotors and pads at my next track day, I don't see much reason to change pads other than wear and pedal feel. I can still engage ABS on stock pads whenever I want, but the pad material is softer and wears more quickly and compresses easier leading to a softer pedal feel than my track pads. For a short track day I'm not worried about it though

 

[949 Racing]

We run either G-Loc R18 or R12 fronts for both street/track. Dust is your friend. At least that's what I keep telling myself.

Our car has the Caliperfexion stud kit so we could swap, we just choose not to.

 

[OPMustang Tim]

I just swapped pads and cleaned the rotors with a brake rotor hone, but I got really bad pad deposits on the front rotors. The rears don't seem to care and worked fine. I'll swap rotors in the future since I got my original set of rotors cut and rebedded them with the track pads.

You machined the GT350 Rotors?

 

[bpracer]

You machined the GT350 Rotors?

I was wondering that myself, since they are floating.

 

[949 Racing]

Bought another set of rotors just for the race pads. OEM set is set aside with the OEM pads.

 

[VoodooBoss]

I ran Pagid RS29 pads on the track and street and didn't swap. But with the Caliperfexion stud kit it's very easy to swap the front pads and rotors. Swapping the rear rotors is a PITA.

 

[stuntman]

Not all pads like each other. Mismatched pad deposits can lead to brake judder (warped rotor feeling).

Stock pads won't fade. Just replace them as needed. If you're fast, that could be every couple track days.

 

[949 Racing]

We have gotten stock GT350 pads to fade on more than one track, but there are many variables:

- Track configuration
- Tire compound
- Ambient temps
- Driver skill level

 

[stuntman]

I'm skeptical of that.

 

[Competition Orange]

I wouldn't be. Heavy, fast, capable car, in the hands of a good driver...

 

[stuntman]

Didn't they do a 24 hour test to validate the car with pro drivers? (With no brake fade, issues, or failures)

https://www.caranddriver.com/news/f...d-the-more-we-learn-the-more-impressed-we-are

 

[xXANCHORMONXx]

There’s no need if you run these.

http://www.gt350brakes.com/product/ferodo-ds2500-gt350-front-brake-pads

The oem pad is a DS2500, you can swap back and forth with the DSUNO race pad since they share the same base compound without any bedding.

I run the ds2500 on the street and dsuno all around on the track.

 

[DocWalt]

I was pretty sure the OEM pad is a Ferodo HP1000, a slight upgrade over the DS2500.

and yes, I found a shop that could cut the rotors, and no, they're not really "floating" enough to matter when cutting them since they're not loose. I asked because I was concerned about it. Factory service manual says the "right way" to cut them is with an on car brake lathe but I couldn't find anybody local that has one.

 

[xXANCHORMONXx]

That is correct, they are very very close. The point though stays the same that you can avoid cleaning up your discs or cutting them by sticking with Ferodo.

In the past with my other cars I had 2 sets of discs and 2 sets of pads. I’ve been using Ferodo for awhile now and haven’t looked back.

I was pretty sure the OEM pad is a Ferodo HP1000, a slight upgrade over the DS2500.

 

[xXANCHORMONXx]

We have gotten stock GT350 pads to fade on more than one track, but there are many variables:

- Track configuration
- Tire compound
- Ambient temps
- Driver skill level

I agree, I got hosed when I said this a couple years ago.

 

[DocWalt]

That is correct, they are very very close. The point though stays the same that you can avoid cleaning up your discs or cutting them by sticking with Ferodo.

In the past with my other cars I had 2 sets of discs and 2 sets of pads. I’ve been using Ferodo for awhile now and haven’t looked back.

I guess my point was that if the OEM pads are available just run OEM pads for street and then you can swap to the DS.UNOs or whatever for track use and keep that compatibility. No need to buy DS2500s for more than the OEM pads cost unless the OEM pads are sold out which seems to happen frequently...

Or do you have a source for cheaper DS2500s?

 

[xXANCHORMONXx]

That’s my fault, I totally worded it wrong. Yes, keep the oem pads for the street and run the DSUNOs on the track.

I guess my point was that if the OEM pads are available just run OEM pads for street and then you can swap to the DS.UNOs or whatever for track use and keep that compatibility. No need to buy DS2500s for more than the OEM pads cost unless the OEM pads are sold out which seems to happen frequently...

Or do you have a source for cheaper DS2500s?