brake calipers? (FEB update w/ STOPTECHS!)

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Al Fernandez
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Postby Al Fernandez » Wed Dec 24, 2014 7:20 am

lol "choice" Michael?

The small rotors and PBR calipers of yesteryear were highly overworked. Thats the entire reason we upgraded the rules to allow for bigger calipers and rotors. I've had the same results as Michael running (much less expensive) Wilwood calipers and generic roundy round rotors. Note also my rotors are only 12.2" which was important to me at the time since my 16" wheels would clear them.
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Postby TX#11CMC » Thu Dec 25, 2014 8:44 pm

Al Fernandez wrote:lol "choice" Michael?


Come on.....Ferris Buelers Day Off!!! 8)
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Postby t500hps » Sat Jan 10, 2015 4:36 pm

So I found a deal, and bought, a set of STOPTECHS!!!!

I installed the first side this afternoon and realized I have another question. I do NOT have a bias adjuster. The previous owner had found a pad combination that worked well together and I've not varied from that much. However, with the increased stopping power the stoptechs should have over the PBRs, I'm concerned the rears aren't going to be doing much anymore.......thoughts or suggestions? Anyone make a similar upgrade and have words of advice?

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Al Fernandez
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Postby Al Fernandez » Sat Jan 10, 2015 5:50 pm

What car do you have again?
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t500hps
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Postby t500hps » Sat Jan 10, 2015 8:47 pm

Al Fernandez wrote:What car do you have again?


Guess that helps :) .........4.6L SN95. Fairly competitive car but I bought it, didn't build it. As typical with the 4.6 mustangs....a little over weight, and a little under powered......car handles great though!

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Postby suck fumes » Sun Jan 11, 2015 5:23 am

You don't need an adjuster. You want less bite in the rear anyway.
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DrC
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Postby DrC » Sun Jan 11, 2015 1:18 pm

I still have the stock GT rear calipers and no adjustments for the rear yet.
So far I have played around with different pads to get what I want which is not the most cost efficient way to do it. Stock pads work the best – less bite no lock up so far. The Hank HP was too much without any adjustments. I had problems with the rears locking up.
Thanks
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t500hps
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Postby t500hps » Wed Feb 11, 2015 12:06 pm

So, I picked up a set of Stoptechs and got out for a test day with a local mustang club this past weekend (man those high powered street cars are slow as crap in the turns)

Anyway. After about 2.75 hours of driving I found I was stopping as fast as with the PBR's but may have improvement left in reducing the brake zone. I'm still using Carbotech XP12's and found very little pad material missing but do see slight scaring of the rotors. (you can feel a hint of "valleys" around the rotor surface).......is this normal? Seems with a brand new setup that I bedded in on a short session that these should still be smooth as a babies azz?

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Postby Glenn » Wed Feb 11, 2015 8:10 pm

The 12's will eat rotors. That is why I stay with the 10's.
I find (as do most) the tires are the limit of the brakes. 10's will lock a wheel just fine, and not kill rotors.
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Al Fernandez
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Postby Al Fernandez » Wed Feb 18, 2015 11:14 am

I like 10s as well.
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Postby Glenn » Wed Feb 18, 2015 12:55 pm

When moving to the StopTechs for the front I found that the XP8's were too much for the rear with 10's in the front. I will be looking for a less agresive rear pad now.
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Postby t500hps » Thu Feb 19, 2015 5:03 am

Glenn wrote:When moving to the StopTechs for the front I found that the XP8's were too much for the rear with 10's in the front. I will be looking for a less agresive rear pad now.


funny you say that.......While I was getting used to the new front caliper a couple times I felt as though the rears locked up on me. Just didn't have enough time to really be sure that was the case. (I was running front 12's, rear 8's)


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