Track brake pads on street tire recomendations?
 

I've been doing a lot of reading but can't make a decision on what pads to order so I'm looking for your input. My car has been on yellow stuff pads but they are just not cutting it any more. The car is on 275 RE-11s, has the sports brakes and I spend a lot of my track time at Sebring, the track is incredibly bumpy. I want to run carbotech 10/8 but I'm concerned the bumps with those pads might give the ABS problems and give me ice mode. Anyone have experience with a set up similar to mine on a bumpy track?

There is a big bump at PI GP Circuit on the way into T4 and also Sandown into T1, and when I have Endless ME20, they always give trouble for the ABS (ME20 is a full-race pad).

However, with MX72 Endless and/or PMU HC+ I don;t have any problems (HC+ is now HC800).

Melbourne (AU) is not as hot as FL but I don't think that will be significant.

I have no expereince with CarboTech pads so cannot offer direct comparative comments.

HC+ has never given me any problems, however, I've never been on particularly bumpy tracks.

I don't see any reason to split the compounds. Personally, I think that is what gives people problems with ice mode. Nissan didn't design and test the brakes with different compounds. For street tires, either XP8 or Hawk Blue.

CMP is a pretty rough track and I found PFC 08s to be a great pad for my street tires there.

I live in Darwin (AU) weather is hot/humid 6 months of the year - then 6 months of dry fantastic weather. The pads for all round DD and light track work (Hidden Valley raceway is a fast circuit hard on brakes reducing speed) I found Endless MX72 pads all round on DBA 4000 slotted rotors. The pads hold up very well and doesn't screw ABS around.......only I squeak from time to time coming to a stop.

Not to steal the thread, but for a daily driver, how do y'all feel about changing to track/autocross pads when you change to track/autocross wheels? And then changing back for daily driving?

I used to do that Cruz, but recently I've stuck to riding around on my yellow stuff pads that I also autocross on. I may change that up because the extra dust is annoying. I also have a HPDE coming up and would like to test out my carbotech pads as well, so I'll be changing them again.

I do it for the track. It only takes under 5 minutes a wheel if you have the sport package.

Tracy Ramsey

Do this combo and never look back. Make sure you have brake duct coolers on the front. I run a very high speed bumpy (built in '69) track and don't have abs ice mode issues at all. I'm on stock rotors too. My turn 1 is 135mph to 55mph with about 30 bumps in all driving lines. ZERO issues.

Hope this helps.

I don't profess to actually know what causes ice mode but from a lot of research and forum scanning it looks like the car gets scared that you will spin because the rears start to lock up. I have never gotten ice mode on track with an XP10/8 split but I have gotten it twice on the road while running the same compound f/r. MX 72. That said, I think it was caused by me just stomping the pedal too suddenly rather than just a quick but progressive application as is proper. As long as you don't in any way alter your brake setup to shift the bias towards the rear (wheel OD, pad distance from center, compound) you should be OK. Especially if you do go to tire setup with less or no stagger, or move to a sticky tire that will induce more weight transfer you may be better off running a compound with more bit in the front / less rear.

I ordered 10/8s today with new rotors so I hope your right


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Are you going to be at the next track day at sebring? I know pca has track day coming up soon, I might be attending that one as well.

I will be at the NASA event in 2 weeks.


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Are you going to the NASA weekend?


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No i won't be at NASA. Gonna be busy next couple months. I have to look at the calender to see when i'm available. I rode in a stillen supercharged 370z this past weekend at sebring and to say it was a huge disappointment only because right hand turns fuel starvation. Umm.. is your Z an auto or manual? i just have question about SRM at high rev's shutting off.

Mine is an auto and has the CJM fuel system because that fueling problem pissed me off.


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Lol I can see why. Are you able to run to empty? How does the auto hold up? Any valve body upgrades?

Before the fuel system I had to fill up after every run to keep the starvation away. I haven't ran Sebring with the fuel system yet but I've ran Homestead twice below a 1/4 tank with no problems. We bumped up the line pressures and that's it for the trans. I've been waiting for it to brake so I can get a Level 10 trans but so far it rock solid, it's impressive how much of a beating it can take. I bought the car as a DD and when I started tracking it I thought I might have made a mistake but after adjusting it I wouldn't want anything else.


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That's awesome. Hopefully next time we can meet at the track, I want to go for a test ride.

NASA will not let you take passenger until you are In Group 3 but I have a check ride scheduled for this event so I should be able any time after that.


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Cheers

I was just out bedding the carbotech 10/8s for Sebring this weekend and they have amazing bight compared to the yellow stuff pads. I think they are going to be fun!


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I can't wait to use my carbotechs. Just used my EBC yellows at Watkins Glen on Tuesday and they felt pretty good, but I'm sure I would have felt more confident with the carbotechs instead.

I always liked the yellow stuff pads but they aren't close to the carbotechs.

I just did my Z1 2-piece rotors front and rear with carbotech XP8's all around. It was somewhat of a challenge to get them to bed in as there bedding process stated. I was never able to get them to fade a little with multiple hard stops. How were yours to bed in?

They didn't fade at all but I did get them to bed. I just walked in the door from a weekend at Sebring and the are great! I still need to work on my braking zones because they are way shorter than the yellow stuff pads.


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LOL, Now I feel better. I thought I might have been getting soft and wimpy. They wouldn't fade for nothing, mind you I was on the street keeping my speeds in check.