[RUQWIKR]

If wanting to try something than stock, what about the Ferodo DS2500? Slightly more aggressive than the stock HP1000's but not near as aggressive as DS1.11.

[seanblurr]

Originally Posted by AZ_1LE

I agree, sure. But just saying "XP10's are no good on a ZL1" is a hugely misguided blanket statement that isn't true. I'm not going to argue with you over physics because of course what you're saying about weight and coefficients of friction is true, but again, pad compounds are not engineered for cars weighing certain amounts, they're formulated to perform a certain way at certain temperatures, period. And again, we have gigantic brakes that are big BECAUSE they're meant to soak up and dissipate heat. So, XP12's on a Miata will theoretically be operating at the same temperature as XP12's on a ZL1.



Sure, if you want to do that, it's your money. Many times I have switch from OEM pads (on a street car, daily driven, not a track car) and either gone straight to XP10's or 12's for track weekends, or OEM to their street compounds without issue. On my ZL1, I had the OEM pads on for around 6k miles, then switched them out for their street compound pads, and there were no issues. 4k miles later, the rotors still look perfect and I have great "daily driver" braking power and feedback. On my old SS 1LE and on my RS4, I went from OEM to race pads and after two heavy stops, the aggressive track pads removed whatever material was still on the rotor and they were good to go.

I think the bigger issue would be going from *another brand* of track pads to G-Loc/Carbotech. Track pads deposit MUCH more pad material on the rotors, and I do understand how that would cause some cross-contamination.

I understand that. It seems like we are thinking the same thing, just approaching from different directions. I still do strongly believe, this car would be suited for a G-Loc pad with a higher operating temp, bite, COF etc. With MY driving style, the 12’s overheated and could not keep up when I had my SS.

That’s exactly what I was meaning. Another company to G-Loc, not switching within their own compounds. We are on the same page.

[SFV1LE]

Originally Posted by RUQWIKR

If wanting to try something than stock, what about the Ferodo DS2500? Slightly more aggressive than the stock HP1000's but not near as aggressive as DS1.11.

I ran DS 2500 in my Evo X and it's a decent pad for street/track combo use but will wear quickly under heavy duty aggressive driving on track, and may cause fade after repeated late braking from high speeds with the ZL1. I switched from DS 2500 to Raybestos ST-43 after my DS2500 wore out after only a few track days.

I'd be surprised if the specs for the DS2500 are more heavy duty than the stock ZL1 pads, but sounds like you have the specs to show that. After 4 hard track days on OEM ZLE pads they're still in great shape (maybe the ZLE vs. ZL1 pad difference accounts for this)

[RUQWIKR]

Originally Posted by SFV1LE

I ran DS 2500 in my Evo X and it's a decent pad for street/track combo use but will wear quickly under heavy duty aggressive driving on track, and may cause fade after repeated late braking from high speeds with the ZL1. I switched from DS 2500 to Raybestos ST-43 after my DS2500 wore out after only a few track days.

I'd be surprised if the specs for the DS2500 are more heavy duty than the stock ZL1 pads, but sounds like you have the specs to show that. After 4 hard track days on OEM ZLE pads they're still in great shape (maybe the ZLE vs. ZL1 pad difference accounts for this)

On the Ferodo compound, they are not a true race pad but are supposed to have similar friction profile as HP1000 while being more heat resistant per a Ferodo engineer I spoke with. DS2500 was the compound on the C6Z (J56 steel brake padlets). I have not had issues with ZL1 HP1000 pads on my SS 1LE.

[rickybobby]

Originally Posted by SFV1LE

I ran DS 2500 in my Evo X and it's a decent pad for street/track combo use but will wear quickly under heavy duty aggressive driving on track, and may cause fade after repeated late braking from high speeds with the ZL1. I switched from DS 2500 to Raybestos ST-43 after my DS2500 wore out after only a few track days.

I'd be surprised if the specs for the DS2500 are more heavy duty than the stock ZL1 pads, but sounds like you have the specs to show that. After 4 hard track days on OEM ZLE pads they're still in great shape (maybe the ZLE vs. ZL1 pad difference accounts for this)

Is there a difference in the zl1 and the ZLE pads? I thought they were the same part number.

[RUQWIKR]

Originally Posted by rickybobby

Is there a difference in the zl1 and the ZLE pads? I thought they were the same part number.

Same and also same as 16-19 CTS-V.

[SFV1LE]

Originally Posted by RUQWIKR

Same and also same as 16-19 CTS-V.

Are you sure, thought I read a post recently where someone definitively found there was some difference?

Sorry if I misread or mis-remembered that.

[Gunkk]

Originally Posted by SFV1LE

Are you sure, thought I read a post recently where someone definitively found there was some difference?

Sorry if I misread or mis-remembered that.

Yes, they are identical.