AMAZING racing brake pads!!!

[GotzenDatsunn]

If you have converted to 4 wheel disc brakes, I have found an amazing brake pad combination for road course driving/racing. Raybestos ST-41's up front and ST-42's in the rear. The car bites hard when just touching the brake and I was unable to get the slightes fade during my 4 - 25min NASA HPDE3 sessions at Sebring last weekend. These pads completely blow away the Carbotech XP-8 pads I was previously using. The Ray's are even responsive cold! @_@

If you are using a common caliper (i.e., Willwood Dynalites) you can order the pads online, otherwise you can trace the backing plate of your current pads and send it in for a custom grind. I got mine at speedtoys.biz but there are several vendors around...

Ken

[John Coffey]

Hawk DTC70 and DTC60 are pretty good too. Been running them on my 350Z. I actually just bought a set of the Raybestos 43s and 41s as the next race pad set to try.

Porterfield Brake custom cuts the pads to fit my calipers.

[Poindexter]

Does these front pads have any application on the street at all, or would that be a completely incorrect usage? Just looking for something with greater bite than OEM.

[gnosez]

How rotor friendly are they and as someone else asked can they be used on the street without making too much noise?

[John Coffey]

Based on my experience with the 43s and 41s on a 3,200 lb. 350Z, I would say no to street use. Rotors are a consumable item with these or any true race pads. They are also dusty and noisy. I did not feel much responsiveness when cold and I think they need a couple hundred degrees in them before you get good bite.

[Pablo]

Hi John! You mention you deal with Poterfield Have or know of someone using the R-4 compound poterfield useson their pads. Just getting back to the track after many years off I used to get DS-11 from him I just got the R-4 FRt/REAR shoes I'm not to sure about them The DS-11 I felt a solid pedal had confidence with this Im stoping good the pedal is solid butjust don't feel the initial grab? Looks to be rotor freindly.

[Chino 240Z]

When we still had the stock calipers, we used the R4 from Porterfield and would use them again. I ruined a set from not getting them to bed right. Dusty, only noisy without the thin metal shims, they needed to get heated up before working good.

Had a Nasa instructor cry about how bad he thought they were, but then again he ruined his next set of a different brand too. I got a feeling he has lots of equipment problems caused by him though.

[Pablo]

Hi Chino! They warned about the bedding was very important. They are very dusty after a weekend at Sebring the rotors had very minor groves compared to what the DS-11 would do. They are in the car now still thick a couple more races left in them. Going to Daytona next weekend will see how they work there?

[John Coffey]

I've had good luck with Porterfield R4s on a stock 240Z brake system using then at open track days and autocrosses. They do need to be bedded properly and they need some heat to start biting. But I have had poor luck with them in track sessions lasting longer then 30 minutes. On a stock 240Z brake system then get overheated and start to chunk, at least that's been my experience. For longer sessions I would go with Hawk Blues.

[Ron Carter]

The R-4's would overheat in my roadster and I went to KFP Gold pads. Again, a true race pad had to be hot to work, but once they were, they worked and I could not get them to fade.

[rxsleeper]

I have had VERY good pad life out of the Hawk HT-10's I run. Of course, I am stuck with drum rears and I am using Carbotech Kaelite metallic in the rear. The balance seems pretty good but I am trying to dial in a little more rear.

The HT-10's require heat for any effective braking. I usually end up "left foot braking" on the out lap to try to have braking when the green flag flys.:bandit:

[JaDub]

I`ve used nothing but Porterfield R-4s for years........ too many national wins to count......... including a national championship. I have had ZERO fade issues with them AND they are very rotor-friendly on the race track. Their R-4S is a great street pad as well.

Jeff Winter RallyeSport - Winter Racing Engines