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Old 01-30-2012, 04:15 PM
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el es tu
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Default quick disconnect brake lines

Ive always wondered about them and swapping out entire brake assemblies instead of taking the time to swap pads. Then I finally saw being used at the rolex 24.

does anyone have experience with them?

The ones ive found are supposed to seal when disconnected - Are they set up with fluid somehow or are they (caliper/ line assembly) installed initially into the car to get fluid in them, uninstalled and then put back on when necessary?

do they ever have issues of leaking or weeping?

do they ever spontaneously detach?

I have no current use for them, but Im just interested in learning more about them and if any corvette people have used them

Old 01-30-2012, 04:35 PM
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sperkins
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Most of us are budget racers. Quick disconnect brakes are about as far from "budget" as you can get.
Old 01-30-2012, 04:36 PM
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Joy of 6
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At $2,000 per wheel, I don't think there will be many forum members experiencing them. The announcer said that they come full of fluid and just attach with 2 bolts that are already secured in the caliper. I just saw them change the fronts only, don't know if any rears were changed. I would think so
Old 01-30-2012, 04:38 PM
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RDnomorecobra
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They didn't answer the question why they don't need a quick caliper bleed after installing. Even full of fluid seems there could be a little bubble.
Old 01-30-2012, 04:44 PM
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travisnd
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I asked that in the other thread. Apparently the sub-assemblies are put on the car and bled, then removed and kept ready to go. The fitting is designed such that an air bubble doesn't get created during install.
Old 01-30-2012, 05:19 PM
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RDnomorecobra
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that is some cool chit. i knew there had to be an explanation.
Old 01-30-2012, 05:26 PM
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Originally Posted by RDnomorecobra
i knew there had to be an explanation.
$$$$$$
Old 01-30-2012, 07:08 PM
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0Anthony @ LGMotorsports
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I don't know where he got the $2000 for that either.

When they go and do this, they fully assemble the corner and bleed the brakes. Once it is done, you pull the corner off just like it is and put it away for when you want to do the change at the track.

But there is more than $2000 in THAT corner.

Depending on the car, and size some of those DP cars can have more than that wrapped up in a rotor and hat. Add in the caliper, lines, fittings, and pads...you can easily be over $5500/ea assembly.
Old 01-31-2012, 08:09 AM
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el es tu
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thanks for the replies!

Originally Posted by Anthony @ LGMotorsports
But there is more than $2000 in THAT corner.

Depending on the car, and size some of those DP cars can have more than that wrapped up in a rotor and hat. Add in the caliper, lines, fittings, and pads...you can easily be over $5500/ea assembly.
considering 2k per corner less than what an expensive street setup runs. Im wondering if they got most of the parts for free... or forgot a zero
Old 01-31-2012, 08:48 AM
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Originally Posted by el es tu
considering 2k per corner less than what an expensive street setup runs.
Keep in mind you have to have at least 3 sets per corner. 1 on the car, 1 for scheduled change, 1 for the inevitable Murphy moment, and the good teams probably have 1 or 2 more because there's a lot of Murphy in 24 hours.
Old 01-31-2012, 10:05 AM
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el es tu
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It would be nice to have a chance to drive something with that much preparation and development.

Come on lotto!
Old 01-31-2012, 10:16 AM
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L98Terror
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Originally Posted by Anthony @ LGMotorsports
I don't know where he got the $2000 for that either.

When they go and do this, they fully assemble the corner and bleed the brakes. Once it is done, you pull the corner off just like it is and put it away for when you want to do the change at the track.

But there is more than $2000 in THAT corner.

Depending on the car, and size some of those DP cars can have more than that wrapped up in a rotor and hat. Add in the caliper, lines, fittings, and pads...you can easily be over $5500/ea assembly.
That's funny you say that, we were discussing that the other night, 2k per corner seemed very low.
Old 01-31-2012, 10:53 AM
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0Anthony @ LGMotorsports
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Going off the GT2 car, which Riley built for us I would figure

$1800 hat/rotor combo
$4105 caliper
$450 pads
$29 caliper fitting
$100 line
$150 QD (I think)
$32.10 bolt, ea

Rough cost per corner for the fronts would be

That would be per corner....$6698 roughly, I don't know if GA has a limited cost on the calipers for that class or not.
Old 01-31-2012, 01:00 PM
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https://www.pegasusautoracing.com/gr...roupID=STAUBLI

$117 for the male side
$130 for the female

Only $247 per joint.

That's why some teams still do it the old fashioned way.
Old 02-02-2012, 12:02 AM
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coffey
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Yeah we ran the staubli QDs and they are real nice and $$$$$. Like Anthony said, $2k is low if the mean the whole brake setup per corner.

There are cheaper QDs but the cheaper they are the heavier, bulkier and leakier they are.
Old 02-02-2012, 01:54 PM
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Originally Posted by L98Terror
That's funny you say that, we were discussing that the other night, 2k per corner seemed very low.
Chip's team gets the volume discount.

Oh, and announcers are shooting from the hip when talking. There is room for an error or two.

I looked at quick disconects from XRP while at the PRI Show but didn't get the price on them. We had quick disconnects in -2 size on the IR seeking head on the F-106 for the cooling way back in the 60's. I brought a couple home after we did a modification but have not found anything to use -2 size for.
Old 02-04-2012, 12:25 AM
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while we're at it...let's talk about a crew support team...or a semi of spare parts!!!

sorry...I couldn't resist. signing off now.

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