Im trying to figure out what Hawk Pads we can run in our calipers, and I am given a list of different caliper #s...

Examples of "Calipers":

x9.005.91
x9.060.51
20.4548.03
20.3655.0
x2.023.21
Big Red
F-40

and the list goes on...

Anyone? Anyone?

 

Good question Matt ?

 

Per Tirerack, the caliper is the same model as the one used on the F40. However; our rotors are thicker, and the pads are thinner and not as tall. I had bought the F40 style Hawk pads several months back, and had to return them due to their dragging constantly on the rotor.

If you had some way to machine the pad down abotu 1/16", they would work. As of right now, per calling Hawk, they have no application for the Evo.

 

Matt...2cools idea is workable and not all that difficult to achieve if you feel it is worth sacraficing quit a bit of pad life. Since all you want to remove a 1/16' you can do this easily by hand on a hard flat surface (check this surface for flatness using a good metal straight edge and a flash light) using sand paper and a circular motion. This method is used to break glaze on sqweeky brakes and is effective. As long as you keep an even pressure and do not let the edge of the pad slide beyond the paper you will be able to keep the pad surfaces parallel. Use your fingertips to hold the pad and to apply as little pressure as possible. You will have sufficient tactile feed back to develop even results. Start with 150 grit then use 200 to finish, do not use garnet. Check your work often. Measure the thinckness with a caliper as you go to see how much you are removing. If you do not have a caliper you can compare with a stock pad buy using a vice set to just let the stock pad slip between the jaws. Check for parallel with a caliper or use your vise as a go/no go guage. Just make sure you are not developing an angle on the pad. Be sure to clean all of the grit from the pad before you install. Another approach would be to have the pad plates shaved 1/16 but this approach increases their vulnerabily to warpage. Take you time and you should encounter no special problems.

 

2Cool - Was the part # you recieved HB193F.670?

".670" actually dictates the thickness of the pad, but Hawk offers nothing thinner... =\




Im working on it. =)

-Matt

 

Check out carbotech they make pads that fit out cars, I have and use a set.

 

Ryanmcd2 - Do you have a FMSI # off those pads?

OR if anyone has the dimensions / a scanned pic of the pad we can size it up with other Hawk pads...

 

Why are you so stuck on Hawk pads? If you want pads that fit use the carbotechs, they have about 5 different pads for our cars. The hawks don't fit and I have used 2 different kind of hawks and Carbotech sells hawks I think or has a pad for each level of a hawk. Why screw around trying to make something work when you can get something and know it works?

 

The F40/F50 pad is not the correct pad for the EVO. I have heard though rumor that Hawk is working on the correct pad, but at this time, they do not have a fitment.

 

Slightly off-topic, but still relevant: I spoke to James at Power Engineering in the UK about a 2-piece AP Racing rotor and pad set (using the stock Brembo calipers). He said that the AP unit is no longer produced, but they are testing a Tar-Ox carbon-carbon (carbon rotors/carbon pads) that has shown promising results. I am familiar with the setup - carbon covering on an iron (maybe steel) rotor with a carbon-ceramic pad. The contact is true carbon-carbon, so all of the heat and durability advantages are retained, but because the rotor is metal, intense heat for it to work is not required. I don't know the price, but I know they'll be much less than the carbon-carbon system Brembo is developing for street cars.