Hydro-Ebrake

Suspension and other discussion

Hydro-Ebrake

Postby CSAlltrac » Mon Sep 24, 2012 12:11 am

Has anyone ever thought of doing one on one of our cars? Im kicking around the idea, and since a stand alone system with separate calipers is crazy expensive Im talking about a T-in setup. Not only would it be good for getting the tracs butt where I want it, they can also be used when doing the 1/4 mile to pre load the driveline so nothing breaks.
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Re: Hydro-Ebrake

Postby 4rsnduction » Mon Sep 24, 2012 3:05 am

CSAlltrac wrote:it be good for getting the tracs butt where I want it

Ever thought of the immense stresses this puts on the transfer box, rear diff and front/center diffs (which are joint together)
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Re: Hydro-Ebrake

Postby underscore » Mon Sep 24, 2012 2:31 pm

CSAlltrac wrote:a stand alone system with separate calipers is crazy expensive


Stand alone systems can be done pretty cheaply...
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Re: Hydro-Ebrake

Postby klue » Tue Sep 25, 2012 10:07 pm

ive done it before, but using the same caliper. Works good but you gotta remember to clutch in lol
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Re: Hydro-Ebrake

Postby CSAlltrac » Wed Sep 26, 2012 1:02 am

^^ Yeah it takes an acquired driving skill for sure, you also cant use the regular brakes when using the hand brake. Im still on the fence with this, might do an LSD first then see how the car does. Right now the car needs a little bit more over steer
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Re: Hydro-Ebrake

Postby l0ch0w » Wed Sep 26, 2012 1:22 am

You sir are going to ruin your VC if you try e-brake turns... this isnt a front wheel drive... Try focussing on developing your suspension first.

If you want more oversteer, try getting solid poly-mount subframe bushings, solid diff mount, and stiffer suspension bushings in the rear and maybe some coilovers. This will help to reduce the body roll in the back and help to push a more even weight distribution. Keep in mind, the torsen LSD that came factory in the ST205 and in RC ST185s is not that strong. They have a fun habit of exploding in cars over 300ftlbs... Look at getting a clutch type LSD if you want something that can tolerate more torque.

If you want to durifteroo then you bought the wrong car...
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Re: Hydro-Ebrake

Postby CSAlltrac » Wed Sep 26, 2012 1:35 am

I have everything you listed. I did not know the factory rear diffs. are weak. I am over 300ftlb so the clutch type is what I'll have to look at. I've been leaning towards not doing the hydro. brake for a few reasons, the potential of killing the trans. has always been at the back of my mind and at the top of my list for not wanting to do it.
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Re: Hydro-Ebrake

Postby 4rsnduction » Wed Sep 26, 2012 2:16 am

l0ch0w wrote:You sir are going to ruin your VC if you try e-brake turns... this isnt a front wheel drive...

If you want to durifteroo then you bought the wrong car...


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Re: Hydro-Ebrake

Postby klue » Wed Sep 26, 2012 9:15 pm

Wont be no full on drifts, but you can dial in the alignment to completely neutralize the car. Ive got mine set up where its very easy to modulate the throttle/or if im being snazzy clutch kick and get it to oversteer with the sway bar on netural. On tighter circuit you can stiffen it up to help it rotate more

you wont get any crazy angle for drifting
but you will be able to get it to turn faster, which is what you want to do.
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Re: Hydro-Ebrake

Postby CSAlltrac » Wed Sep 26, 2012 9:19 pm

klue wrote:Wont be no full on drifts, but you can dial in the alignment to completely neutralize the car. Ive got mine set up where its very easy to modulate the throttle/or if im being snazzy clutch kick and get it to oversteer with the sway bar on netural. On tighter circuit you can stiffen it up to help it rotate more

you wont get any crazy angle for drifting
but you will be able to get it to turn faster, which is what you want to do.

Exactly what I'm looking to do. Not looking to turn it into a drifter or whatever other term was used. If I want to drift ill buy an RX7 with a LSx motor.
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Re: Hydro-Ebrake

Postby l0ch0w » Sun Sep 30, 2012 2:44 pm

^heh... im actually helping build one of those in the next few months...
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Re: Hydro-Ebrake

Postby wakkjobb » Sun Sep 30, 2012 3:26 pm

Hit up Legacy of Dan; he had one of em doohickeys in his 165 a while back... something about not always having equal braking force between the wheels = surprise turning or something.
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Re: Hydro-Ebrake

Postby sMARTINside » Sun Sep 30, 2012 5:24 pm

Here is a nice example of how locking the rear wheels makes the VC break:

http://www.youtube.com/watch?v=b81Yg4hrDd8
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Re: Hydro-Ebrake

Postby l0ch0w » Sun Sep 30, 2012 8:51 pm

I believe Wilwood makes an adjustable brake proportioning valve.

You still have to be very careful, because if you happen to lock up either the front or rear half, then your VC will splode.
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Re: Hydro-Ebrake

Postby 4rsnduction » Sun Sep 30, 2012 10:37 pm

Whats the point of taking the risk ?
These things arnt the cheapest to repair when they do break.
Honestly i wouldn't bother using the handbrake for anything other than parking and emergency stopping power when the fronts have too much brake pressure and may lock up and you need very mild friction on the rear end to balance everything...but thats not the same as yanking on the handbrake and spinning around a tight hairpin.
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