Saturday, November 24, 2012

Suspension and the $100 Big Brake Kit for the MK1 Fiesta - Redux

I mounted the the suspension back on the Fiesta with the new big brake kit.  I also had some new springs and a replacement right front Boge strut already built up.  Eventually, the Koni sport struts will go on.

New suspension
Here are some final notes about the brake swap:

1.) you will need new caliper bolts. They are m12 - Fine(x1.5) x 30mm long mounting bolts. I bought bolts from BMW and they were a touch too long and would hit the Rotor. Make sure they are Hardened. I got these from True Value Hardware for $2.50 each.




2.) Have your Machinist mill off .175" of material from the caliper brackets to center the hub on the rotor.

3.) You will have to drill out your existing Hub holes to accept the larger M12 mounting bolt.  


If you want to be able to swap back to your stock calipers, you will need to drill and tap the stock carriers to to accept the M12 caliper bolts.  I have two sets of carriers, so I will do this with one set incase I ever need or want to go mount up the stock wheels.

Caliper with milled surface (-.175)

Big Brakes


New springs and replacement strut

5 comments:

  1. Do you think your big brake set up would work with 13 inch wheels

    ReplyDelete
    Replies
    1. Maybe, but it would be really tight if it did fit. I will measure to the center of the hub to the outside of the caliper and post the measurement. You could then measure the inside diameter of your wheels to see if there is enough clearance to deem it a candidate.

      If not you can get a set of 14" 4x108 J6 Konig Incident wheels on ebay motors for $320 and that includes shipping!

      I'll post measurements later today.

      Good luck!

      Delete
  2. Did you mill on the caliper bracket where it mounts to the spindle? also, did the stock brake hoses fit?

    Thanks

    ReplyDelete
  3. Hi Will, Sorry for late reply. Yes, I took the calipers into a machine shop with the spindle and a rotor. I unbolted the CV joint from the right drive shaft from the transmission, so they had everything to calculate the amount of material to remove.

    The machinist mounted the rotor to the spindle and measured the mount point to the centerline of the rotor.

    They milled ~.175 from the caliper hanger bracket. They then had to drill the caliper mount holes on the spindle to clear the larger M12 caliper bolts.

    The stock holes clear M10 stock caliper bolts.

    Hope that helps!

    ReplyDelete