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07-07-2010, 12:32 AM
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#1 | ||
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Regular Member
Join Date: Mar 2010
Location: Melbourne, Northern suburbs
Posts: 247
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This is a general question and may seem a bit silly but what role do the rear brakes actually play? When the brakes are applied, what percentage of work is done by the rears? Reason why I'm asking is because I've always wondered how you can do a standstill in an auto while applying brakes. Have they got anything to do with the handbrake?
Thanks guys |
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07-07-2010, 12:37 AM
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#2 | ||
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Just another mock-up..
Join Date: Sep 2006
Location: In an AU Fairlane somewhere...
Posts: 9,966
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On the AU's the hand brake is seperate to the caliper..
The hand brake works similar to a drum brake setup on the inside of the brake disc near the hub, if that makes any sense.. also, i'm pretty sure that most cars braking is more biased to the front.. whether it be 60/40 or 70/30 or 80/20 etc.. i'm not to sure on exact...
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07-07-2010, 12:46 AM
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#3 | ||
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Regular Member
Join Date: Mar 2010
Location: Melbourne, Northern suburbs
Posts: 247
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yea that seems to clear up some questions for me. So naturally, if you were to do a burnout on the spot in an auto you would be doing no good for the car at all, what would most likely stuff up over time as the car isnt designed for that kinda stuff
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07-07-2010, 02:15 AM
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#4 | ||
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Just slidin'
Join Date: Sep 2005
Location: Brisvegas
Posts: 7,791
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Ive done many, many, many burnouts in my au, with only a few breakages, all stemming from the one problem, which was an unbalanced tailshaft. Except for when I done the diff, that was just from pure abuse.
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NP Pajero - For the adventure |
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07-07-2010, 09:30 AM
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#5 | ||
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Walking with God
Join Date: Mar 2005
Location: Melbourne
Posts: 7,321
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Don't know for sure, but I hear 80/20 Front/Rear thrown around in general conversation.
Someone here should know for sure though. GK
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2009 Mondeo Zetec TDCi - Moondust Silver 2015 Kia Sorento Platinum - Snow White Pearl 2001 Ducati Monster 900Sie - Red Now gone! 1999 AU1 Futura Wagon - Sparkling Burgundy On LPG Want a Full Life? John 10:10 |
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07-07-2010, 12:01 PM
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#6 | ||
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Flairs - Truckers Delight
Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
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Well i can only go off how long brake pads lasted in the cabs
in the AU1's we used to laugh at the fact that the front pads would last for 30k and the rears for 130k. In the AUII's it was something similar again, like 60k and 160k for front and back respectively. so around the 75/25 is about right, if wear = pressure
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Current: Silhouette Black 2007 SY Ford Territory TX RWD 7-seater "Black Banger"
2006-2016: Regency Red 2000 AUII Ford Falcon Forte Automatic Sedan Tickford LPG "Millennium Falcon" |
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07-07-2010, 01:01 PM
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#7 | ||
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FF.Com.Au Hardcore
Join Date: Aug 2006
Location: Newcastle
Posts: 1,061
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only done one standstill burnout, wasn't even that good, and it resulted in a dead diff (i think the original oil was still in it after 170k's). wife was not happy as she was 38 weeks pregnant and we needed the car to get to hospital.. one quick repair and i haven't been silly in the car since
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07-07-2010, 01:21 PM
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#8 | ||
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FF.Com.Au Hardcore
Join Date: Dec 2008
Posts: 1,566
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You'll kill the transmission first an the diff next. Possibly warp your rear rotors but I'm not sure on that one
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07-07-2010, 01:36 PM
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#9 | ||
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Regular Member
Join Date: Mar 2010
Location: Melbourne, Northern suburbs
Posts: 247
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hmm, sound like burnouts in an auto is a no no...Yea i guess the system is similar to motorbikes where the front brakes play the primary role and are stronger than rears.
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07-07-2010, 01:37 PM
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#10 | ||
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Flairs - Truckers Delight
Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
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no, they're not a no-no
you just have to remember the 'you play, you pay' rule.
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Current: Silhouette Black 2007 SY Ford Territory TX RWD 7-seater "Black Banger"
2006-2016: Regency Red 2000 AUII Ford Falcon Forte Automatic Sedan Tickford LPG "Millennium Falcon" |
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07-07-2010, 01:45 PM
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#11 | |||
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Regular Member
Join Date: Aug 2006
Posts: 286
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Quote:
True that
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07-07-2010, 03:25 PM
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#12 | ||
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Just slidin'
Join Date: Sep 2005
Location: Brisvegas
Posts: 7,791
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When I went to Willo**** to do a world record attempt of most cars doing donuts at the same time, I broke many things, lol.
Tailshaft was out of balance so my extension housing broke, and the seal of course, and the bearing and bush. The output shaft was mangled, and I snapped the pulley on the power steering pump. This threw off the belt, and I overheated and cracked the radiator. Most expensive 30 seconds Ive ever had. Then the next time I went to Willowbank, I destroyed my LSD. Another $1000 in 10 seconds down the drain. Although, for the 5 years Ive been doing this stuff before hand, I hadnt had one problem.
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MD Mondeo - For the family
NP Pajero - For the adventure |
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07-07-2010, 05:29 PM
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#13 | |||
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Former BTIKD
 
Join Date: Mar 2005
Location: Sunny Downtown Wagga Wagga. NSW.
Posts: 53,197
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Quote:
VERY big discs too
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07-07-2010, 05:52 PM
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#14 | ||
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Fixing Ford's **** ups
Join Date: Feb 2009
Location: In a house
Posts: 4,759
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70% front 30% rear.
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07-07-2010, 07:14 PM
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#15 | |||
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Miami Pilot
Join Date: Jan 2005
Location: ACT
Posts: 21,703
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Quote:
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10-07-2010, 12:20 AM
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#16 | ||
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Regular Member
Join Date: Jul 2009
Posts: 83
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you can install a line locker where you have a on and off flow to the rear brakes so when you wanna burn out turn it off so no fluid goes to the back brakes and all at the front, did it to my old corolla
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10-07-2010, 08:27 AM
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#17 | ||
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Regular Member
Join Date: Mar 2010
Location: Melbourne, Northern suburbs
Posts: 247
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How much does it cost and has anybody else done this before or recommend it?
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10-07-2010, 08:33 AM
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#18 | ||
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Flairs - Truckers Delight
Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
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I heard that
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Current: Silhouette Black 2007 SY Ford Territory TX RWD 7-seater "Black Banger"
2006-2016: Regency Red 2000 AUII Ford Falcon Forte Automatic Sedan Tickford LPG "Millennium Falcon" |
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10-07-2010, 08:53 AM
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#19 | |||
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rexnet
Join Date: Feb 2010
Location: Adelaide, South Australia
Posts: 3,562
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Quote:
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11-07-2010, 09:39 PM
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#20 | ||
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Regular Member
Join Date: Jul 2009
Posts: 83
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i can be done but wouldnt be drivin around with them all the time it'd be a bit dangerous, the tap works i was going to do it to mine soon ill put up a tutorial soon on aufalcon.com.au
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Rear Brakes
Linear Mode
