Brake upgrade, Parking brake |
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Brake upgrade, Parking brake |
Krank |
Jun 22 2011, 10:40 PM
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#1
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Member Group: Members Posts: 140 Joined: 11-October 09 From: Winnipeg, MB Member No.: 10,922 Region Association: Canada |
I have been thinking about doing the beemer front disk brake upgrade. The only thing that bothers me is the loss of the parking /(cough, cough) emergency brake. I had an idea to look for a motorcycle front disk brake rotor mounted to the axleshaft with a cable operated brake assembly mounted to the tranny (I think there are three useable bolts on the RH side). Anyone play with this idea before?
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Matt Romanowski |
Jun 27 2011, 10:28 AM
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#2
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Senior Member Group: Members Posts: 878 Joined: 4-January 04 From: Manchester, NH Member No.: 1,507 |
IMHO, stock brakes on a stock car, with some good pads (like Porterfields) are fine. Stock brakes are fine for AX. Once you start to track the car, they quickly become marginal. Any car with an upgraded motor and it starts to get dicey real quick. I've done stock brakes with a 1.7, built 2 liter, and finally a 2.3 liter -4 making around 175 HP. I can tell you that 140 mph into the bus stop at Watkins Glen with stock brakes is not really fun. Plus, you kill pads very quick, regardless of what you run (and the best for stock calipers are Raybestos from Porterfield Ent.).
I swtiched to Wilwoods all the way around and it made a world of difference with the car on the track. Granted, the brakes are about 5x bigger than stock, but it actually stops the car, they don't wear out in 2 sessions, and don't fade. I'm running a 21mm MC, Wilwood forged Superlights front and rear - front with 1.75" pistons and rear with 1.38" pistons and a proportioning valve (almost full open). Required putting a new mount on the trailing arms, but completely worth it! PHotos below including a comparison of the old front pads to the new. |
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