Quote:
Originally Posted by CP911
Has anyone else noticed the Powerstop PST-1609 pads as recommended above by m3driver999 have the same model number "1609" (and "1656" for the rear pads) as Performance Friction's "M Sport Performance" 1609 and 1656 pads? What is going on here? Is one company just OEM'ing the other's pad? Both are being advertised as Carbon-Metallic compounds for Track Day/HPDE use, but the PFC pads seem to come in two compounds: "08" and "11". Can anyone shed some more light on these pads?
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As
john16443 indicated, the '1609' and '1656' values are FMSI numbers. They identify industry standard brake pad shapes. This was the first hit when I searched on FMSI; it's a useful and succinct introduction:
https://www.brakeandfrontend.com/fms...than-60-years/
Below is some data I pulled from the current Hawk Performance catalog (I used Hawk because I use their pads and had the catalog PDF handy). The left-hand image shows Hawk's catalog entries for the two FMSI numbers that are used in the F22 MSport brake calipers, front and rear. The right-hand image shows lists of Hawk's pad compounds, along with how they construct a product code for a specific pad.
You asked about PF08 and PF11. Those are a couple of motorsport compounds from Performance Friction. Catalogs from both Hawk and PFC (Performance Friction) can be found at their respective websites. PFC's catalog details the applications for the two pad compounds.
If you're going to get into track pads, I think it's worthwhile knowing your way around the manufacturers' catalogs. A
qualified retailer that specializes in BMWs is a good resource, too. I recommend Bimmerworld - there are others, as well. For example, you may not be able to tell from reading PFC's catalog whether you'd prefer the PF08 or the PF11. A
qualified retailer should be able to help you determine which is right for your use.
At the bottom are a couple of images from Hawk and Ferodo showing useful data regarding some of their compounds. It would be nice for us if every pad manufacturer produced data like this.
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