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Matco Brakes

 
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ftyoder(at)yoderbuilt.com
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PostPosted: Mon Oct 04, 2010 12:59 pm    Post subject: Matco Brakes Reply with quote
'OC' and ALL,

I just wanted to comment on my Matco brakes. After 10 years of less than satisfactory braking on my TR-1 I now have them working properly.

I met George Happ (Matco) at his booth at OSH this year and got to try his brake simulator that demonstrated the pressure to the brake calipers with the master cylinder attached at different locations on the pedals. The difference in caliper pressure was dramatic with just a small change in the position of the master cylinder on the brake pedal. He had pressure gauges attached to the lines so you could see the pressure applied to the calipers as you pushed the pedals. I had tested my pressure and found that with normal brake pressure I was generating 200/250 lbs., medium pressure 400/450 lbs., hard pressure 600/650 lbs.

With the kit brake pedals, using the hole supplied, you don't produce enough pressure, with a normal push, which produces a lot of heat and wear and poor braking. I did melt the end of the plastic line from all the heat. I was able to drill a new hole in the pedals about 1/2" closer to the ruder bar and still have clearance for the master cylinder shaft to fully extend. The result was dramatic and I now have satisfactory brakes. You need the 600 lbs. for efficient braking.

FWIW,

Tim
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sstearns2(at)yahoo.com
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PostPosted: Mon Oct 04, 2010 1:46 pm    Post subject: Matco Brakes Reply with quote
My brake power is less than ideal with the matcos too. I ordered the master cylinder kit from them that reduces the master cylinder bore diameter significantly so you generate more pressure with a given force on the pedal. I think that will have the same effect, but I'll report back when I install the kit.

Scott

--- On Mon, 10/4/10, F. Tim Yoder <ftyoder(at)yoderbuilt.com> wrote:

Quote:

From: F. Tim Yoder <ftyoder(at)yoderbuilt.com>
Subject: Matco Brakes
To: kis-list(at)matronics.com
Date: Monday, October 4, 2010, 1:58 PM

'OC' and ALL,

I just wanted to comment on my Matco brakes. After 10 years of less than satisfactory braking on my TR-1 I now have them working properly.

I met George Happ (Matco) at his booth at OSH this year and got to try his brake simulator that demonstrated the pressure to the brake calipers with the master cylinder attached at different locations on the pedals. The difference in caliper pressure was dramatic with just a small change in the position of the master cylinder on the brake pedal. He had pressure gauges attached to the lines so you could see the pressure applied to the calipers as you pushed the pedals. I had tested my pressure and found that with normal brake pressure I was generating 200/250 lbs., medium pressure 400/450 lbs., hard pressure 600/650 lbs.

With the kit brake pedals, using the hole supplied, you don't produce enough pressure, with a normal push, which produces a lot of heat and wear and poor braking. I did melt the end of the plastic line from all the heat. I was able to drill a new hole in the pedals about 1/2" closer to the ruder bar and still have clearance for the master cylinder shaft to fully extend. The result was dramatic and I now have satisfactory brakes. You need the 600 lbs. for efficient braking.

FWIW,

Tim
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ftyoder(at)yoderbuilt.com
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PostPosted: Mon Oct 04, 2010 6:06 pm    Post subject: Matco Brakes Reply with quote
Scott,

I added that Intensifier kit last year and it helped a little. I had also lengthened the rudder pedal per the recommend length. If you find that you still want more pressure after adding the kit then moving the fulcrum point will do the trick. Of course you will have ready access to the pedals when you remove the master cylinders to install the kit. But if you do both at the same time you won't know which had the most effect.

Have you finished your phase 1 testing? I would be interested in your assessment.

Tim
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