Performance oriented brake pad options
Talked with Porterfield more about their compounds today. They do make a slider style they just call it the ADP 84: APD-84
I did confirm they are bonded only and don't use any type of mechanical attachment (rivets, hooks, holes etc).
Here are some useful bits of information I got from the conversation All their quotes in Italic and blue for Clarity:
"We do not note specific friction levels. R-4 and R4-E are around .5 and R4-1 hits peaks of .6 but at the lower temps and R4-S is .4"
R4-S temp limit: "Its a street pad so street temps which are usually always under 500F and peaks over 900F would be rare."
"The AP D-84 is made to order in the race compounds due to low demand. Please allow 10 business days" - Race compounds meaning anything other than R4-S
When asking for specific recommendations:
"I'm a little confused on the crossover between the R4-S and the R4-1 when it comes to light track use. The S says not for track use at all but the 1 says not for street use. So do you have a recommendation for a Street car that gets used for Autocross and track days or do you recommend changing pads for track days?" - Me
"The difference between Street and autocross temps is doable. Its the track days that makes it less suitable. Track days while not "competing" you are still simulating track speeds/conditions and thus really need a track worth pad." - Porterfield Customer Service
**Also a side note if anyone is using a Ford explorer disc rear you can get the matching compounds which is nice: AP667
Found a friction/temp graph for the Porterfield pads:
Talked with Porterfield more about their compounds today. They do make a slider style they just call it the ADP 84: APD-84
I did confirm they are bonded only and don't use any type of mechanical attachment (rivets, hooks, holes etc).
Here are some useful bits of information I got from the conversation All their quotes in Italic and blue for Clarity:
"We do not note specific friction levels. R-4 and R4-E are around .5 and R4-1 hits peaks of .6 but at the lower temps and R4-S is .4"
R4-S temp limit: "Its a street pad so street temps which are usually always under 500F and peaks over 900F would be rare."
"The AP D-84 is made to order in the race compounds due to low demand. Please allow 10 business days" - Race compounds meaning anything other than R4-S
When asking for specific recommendations:
"I'm a little confused on the crossover between the R4-S and the R4-1 when it comes to light track use. The S says not for track use at all but the 1 says not for street use. So do you have a recommendation for a Street car that gets used for Autocross and track days or do you recommend changing pads for track days?" - Me
"The difference between Street and autocross temps is doable. Its the track days that makes it less suitable. Track days while not "competing" you are still simulating track speeds/conditions and thus really need a track worth pad." - Porterfield Customer Service
**Also a side note if anyone is using a Ford explorer disc rear you can get the matching compounds which is nice: AP667
Found a friction/temp graph for the Porterfield pads: