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Old 02-27-2011, 02:15 PM   #1 (permalink)
ntrudelle
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Suggestion to replace stock brakes

I have the stock fox brakes on 15" team 3 rims,would like to upgrade with much better calipers and rotors,don't know what would fit,any suggestion. I improved the brakes a bit by changing the stock brake pads with "Hawks HPS" but wish I could put better calipers without putting a brake booster,anybody did that mod with stock brakes,thanks

Michel
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Old 02-27-2011, 02:17 PM   #2 (permalink)
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I have a couple of 4 piston systems that fit under 15" wheels with a lot more stopping power that any single piston system. Feel free to call me at 520-494-2745 and we can talk it over.
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Old 02-27-2011, 05:58 PM   #3 (permalink)
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Dollar for Dollar, you won't find a better braking systemn than Wilwood. Call Gordon, install his kit, and be carefull the first time you use them. You might end up with your eyeballs splattered on the windshield.
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Old 02-27-2011, 06:39 PM   #4 (permalink)
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Ditto what Bob said, I use to have real good brakes, then I installed Gordons Willwoods and I down right amazing brakes. I should have done this 10 yrs ago I've been though so many different braking setups each one was better than the previous the wilwoods were better than all the improvements combined.
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Old 02-28-2011, 11:57 PM   #5 (permalink)
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Gord can I just swap the calipers or I have to replace the rotor as well.
Also my rear end is from a Thunderbird supercoupe '92,any chance I could replace those calipers as well. My handbrake as Lockard for cables,can they adapt. Let me know,thanks

Michel
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Old 03-01-2011, 12:38 AM   #6 (permalink)
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Swap the entire system. Everything will match properly. The IRS kit I have is a bolt in and you can use your current park brake cable set up.
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Old 03-01-2011, 06:07 PM   #7 (permalink)
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i had a similar post

Michel didn't mention what rear is in the car

for Gordon: what was the concern with rear gear dff gear/shim, etc or ????

i didn't really get it
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Old 03-01-2011, 06:26 PM   #8 (permalink)
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Actually he mentioned an IRS. The things I mentioned to you is for the live axle. Because these are fixed caliper brakes the live axle tends to have some in and out axle play. For best performance from my systems it is best to shim the posi very tight so there is no axle play at all.
For how you use your car Eddie, such as autocross and open track, rebuilding your posi becomes a regular maintenance thing. Get a hold of me and we can talk about how to do that. You first time rebuilding the posi will take a couple hours, after that it can be done in as little as 45 minutes.
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Old 03-01-2011, 07:16 PM   #9 (permalink)
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Have you given any thought to upgrading the Fox brakes to the 84-86 SVO brakes. I just purchased the 73MM calipers, hawk pads and a set of cross drilled and slotted rotors.

I will not have the car on the road for a while so I can't tell you if this would give you a 10% improvement or a 20% improvement.

Total cost of pads, rotors and calipers is under $450 bucks.

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Old 03-02-2011, 01:55 AM   #10 (permalink)
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Quote:
Originally Posted by Gordon Levy View Post
For how you use your car Eddie, such as autocross and open track, rebuilding your posi becomes a regular maintenance thing. Get a hold of me and we can talk about how to do that. You first time rebuilding the posi will take a couple hours, after that it can be done in as little as 45 minutes.
I had heard this before, but not often. But that's why I changed to a worm gear as soon as the clutches started to get some wear.


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Originally Posted by gswartz View Post
I just purchased the 73MM calipers, hawk pads and a set of cross drilled and slotted rotors.

I will not have the car on the road for a while so I can't tell you if this would give you a 10% improvement or a 20% improvement.

Total cost of pads, rotors and calipers is under $450 bucks.
Well, don't expect to gain a whole lot. The upgraded calipers is a good idea. But the rotors are (functionally) a waste of money.

In the olden days, hot brake pads produced a significant amount of gas - called outgassing. That gas would get between the rotor and the pad, push the pad out, and you'de lose braking power. Racers started drilling holes in the rotor to give the gas a place to go.

The holes decrease the rotor surface, and decrease the pad contact area. Some people say the decrease in surface area also caused a decrease in brake effectivness, and some people say it doesn't matter. IDK, but I tend to think it does.

It is well known that the holes create stress risers, and will propogate cracks. This significantly decreases the service life of the rotor.

Fast foreward to the new century. Modern pads do not outgas like they used to. The holes serve no function, decrease service life, and may decrease performance.

Wilwood clearly states that holes in the rotors are for bling only. Wilwood and Gordon both do not recommend drilled rotors for racing and heavy duty applications.

The slots are a slightly differant story. The purpose of the slots is to act like a cheese slicer on the pad surface. When you're pounding the brakes lap after lap, they get pretty hot. Sometimes they'll glaze over, and now they don't work. The slots will shave off a little bit of pad material with each pass. The pads stay fresh and clean. But, you get more dust and a decrease in pad service life.

Here's a picture of my stock Ford brakes next to my new Wilwood racing brakes. The brakes came as a complete kit from Gordon. They included everything I needed: every bolt and screw. The only thing not in the box was the fluid; and he would have sent that too if I asked him.





These are the rear brakes.
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Old 03-02-2011, 02:18 AM   #11 (permalink)
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The hawk pads made a difference,now my car is in the paint shop so it'll have to wait a little. Wonder how much that would cost me to upgrade the calipers front and rear with rotors,maybe Gord can answer that.My budget went all on the paint job. I read that
with those kits you have to modify something ,was it the spindle and what do you have to do. My rims are 5 lugs by the way,cheers

Michel
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Old 03-02-2011, 02:22 AM   #12 (permalink)
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Give me a call at 520-494-2745 and we can talk about your upgrade.
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Old 03-02-2011, 02:52 AM   #13 (permalink)
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Quote:
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I read that
with those kits you have to modify something ,was it the spindle and what do you have to do. My rims are 5 lugs by the way,cheers

Michel
I'm using Fox spindles. I had to cut off the ears that the stock calipers mount to. No big deal. A few minutes with a 4" cutting wheel in a grinder and they were gone.

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Old 03-02-2011, 02:14 PM   #14 (permalink)
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brake upgrade cost ladder ???

Michel

at first, i wasn't going to give you my referenced link above because i have 17" wheels, but it is some good reading for you.

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Old 03-03-2011, 11:52 PM   #15 (permalink)
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Thanks for the info guys.
Quote:
Originally Posted by NiceGuyEddie View Post
brake upgrade cost ladder ???

Michel

at first, i wasn't going to give you my referenced link above because i have 17" wheels, but it is some good reading for you.

e d d i e
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Old 03-04-2011, 12:16 AM   #16 (permalink)
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Not to cut off any upgrade sales here but...you might want to try Hawk HP Plus pads.They are at least as much better than HPS as the HPS were better than your previous pads.They do dust a lot but I put up w/ that cause they gave me really great brakes w/ only a little more effort than power.BTW mine are on the rear only,w' HPS on the front and a CNC dual MC. I guess it's a $200 gamble that they would give you something you are satisfied with.
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Old 03-06-2011, 06:48 PM   #17 (permalink)
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Just for information, we never put the 73mm units up front as we find they over power the rear brakes even more than the stock fronts. JMHO, Richard.
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Old 03-06-2011, 11:32 PM   #18 (permalink)
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i am glad this post was started, i learned some more stuff. i actually have the money for Gordon's rear brake kit banked, i plan to do it after vacation, after tax return, and after i am sure my budget is still okee-dokee...

but one thing is for sure, i am going to do loads of 60-0 braking and record the results before and after. i think the FFR video has data on stock mustang brakes too....

i'll start a thread inviting everyone to do the same, then i'll put together the results of everyone's setup and average 60-0 braking

see ya
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