Hydraulic handbrake
#1 _CHOPPER_
Posted 26 October 2006 - 07:15 PM
Where can I get one in Melbourne?
What brands are better?
Price?
#2
Posted 26 October 2006 - 07:47 PM
Could you use a line locker kit? or 2..I am sure you could come up with the required design.
#3 _devilsadvocate_
Posted 26 October 2006 - 07:54 PM
They must be available somewhere, standard kit for competitive rally cars.
#4 _CHOPPER_
Posted 26 October 2006 - 08:00 PM
Anyone know the current price for a line locker? Last time I looked they were $170.
#5 _RpM_
Posted 26 October 2006 - 08:01 PM
#6 _CHOPPER_
Posted 26 October 2006 - 08:07 PM
#7 _torana_
Posted 26 October 2006 - 08:53 PM
you still need a mechanism to charge the oil pressure and to keep it charged. A line locker is just a solenoid that does the oposite, ( when energized it stops pressure going to your rear brakes.
am i missing something? can someone explain how a linelocker would work as a handbrake? ( you certainly dont want to keep a solenoid on all the time to act as your handbrake )
cheers julian
#8 _RpM_
Posted 26 October 2006 - 09:08 PM
#9
Posted 26 October 2006 - 09:16 PM
And with the solenoid fitted in the same place it could be used as a park brake by applying the brakes, operating the solenoid and releasing your foot from the pedal..thus holding pressure in the front brake system.
Design of the system would depend on whether you had single, twin or triple outlets on your brake master cylinder.
#10 _torana_
Posted 26 October 2006 - 09:23 PM
why would you use a hand brake lever and a line locker?If you used it in conjunction with another master cylinder off a hand brake lever and again using the line locker to shut pressure out of the front brakes it would work off a lever instead of the foot.
Design of the system would depend on whether you had single, twin or triple outlets on your brake master cylinder.
the other important system design would be battery life
cheers julian
#11
Posted 26 October 2006 - 09:28 PM
Use a lever and another master for a more conventional feel...I cant see me doing flick turns using one foot on the accelerator and on on the brake..if you use a hand lever it would feel right
Solenoids draw a poffteenth of an amp...i'm pretty sure the battery will cope
Edited by FastEHHolden, 26 October 2006 - 09:29 PM.
#12 _devilsadvocate_
Posted 26 October 2006 - 10:26 PM
My concern about the hydraulic leak down is real, maybe things have changed since 20 years ago, parked rally/road cars fitted with hydraulic hand brake would eventually roll away making it necessary to carry wheel chocks for parking.
Edited by devilsadvocate, 26 October 2006 - 10:28 PM.
#13 _CHOPPER_
Posted 26 October 2006 - 11:28 PM
#14 _devilsadvocate_
Posted 26 October 2006 - 11:48 PM
Just thinking out loud here..........may be completely off track.
#15 _CHOPPER_
Posted 27 October 2006 - 12:00 AM
In hydraulics ( particularly with rams ), it's not unusual to have some seepage past the internal seals when the rams are extended and under load. The rams are designed for lifting purposes, there are lockout pins which are designed to support the load and make the rams stay in position. Generally, the only time a ram is designed to support a load, it is limited to a max. of 200 KG, or two pepole when used in an elevating platform unit.
#16 _devilsadvocate_
Posted 27 October 2006 - 12:17 AM
Edited by devilsadvocate, 27 October 2006 - 12:27 AM.
#17 _devilsadvocate_
Posted 27 October 2006 - 01:04 AM
#18
Posted 27 October 2006 - 01:26 AM
If cost is a factor you won't buy a decent handle with a ratcheting lockable handle
Stewart Wilkins Motorsport has a nice one but they are expensive....... but very good quality
One forum member has one in his car
#19
Posted 27 October 2006 - 06:50 AM
#20 _CHOPPER_
Posted 27 October 2006 - 06:32 PM
#21
Posted 27 October 2006 - 07:17 PM
Cheers
Stedz
#22
Posted 29 October 2006 - 03:26 AM
The following is a snippet from another site:
Hill Holder Clutch: A Subaru exclusive (originally a Studebaker exclusive...). Manual transmission models only. A small rear brake that, after being set by the brake pedal, when the clutch was still depressed the car car would simply not roll down a hill! A very popular feature. On all manual trans. Legacy Ls in the 1990s and many earlier models. There is no hill-holder available with any 2.5L engine (1996 was the first year for the 2.5L) and it was discontinued for the 2000 model. Note: April 2002: hill-holder will be used again on the 03 Forester. This will be the first use in any 2.5L engine.
I think this refers to the Studey trans brake as I am sure the Subby works off the front wheel brakes.
Prehistoric traction control. Maybe we should tell Skaifey?
Edited by rodomo, 29 October 2006 - 03:38 AM.
#23 _Yella SLuR_
Posted 29 October 2006 - 07:06 AM
#24
Posted 29 October 2006 - 09:17 AM
I have a cheap hydraulic ball valve in my rear brake line to isolate the rear brakes. I have used this in the past to lock on the brakes. For what you want to do it would probably be effective.I was thinking along the lines of using a rotary tap inline with the brakes. Apply the brakes and close the valve. Cheap and simple. The taps only cost a few bucks, require no electrics and would do the job.
#25 _DocDamage_
Posted 29 October 2006 - 10:18 AM
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