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I doubt a monster cammed or turbo motor could work a vac servo.
But stock bugs did it on a clutch for the auto stick. The autostick had a vacuum operated clutch and a torque coverter.
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So yes on the available vacuum on a stockish engine.
Then in the hot rod v8 world there are accessory pumps to power the booster with for cars with big cams and power brakes.
And even modern car....if the engine were to quit the power stearing and power brakes would quit also.
That Lexus part looks very interesting and is small. That is something to definitely research also.
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have had ideas.....but have not thought thru...about making a controller for an anti-lock brake motor and pump, controlling motor "on time and speed" for a clutch or brake apply....then using a solenoid controlled pressure bleed off, if used on a clutch setup. Maybe someone is already using a setup like this??? anyhow, food for thought.:xzqxz:
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Ok thanks guys, I have the means and know how to do what I need. I was just hoping someone on here has done it and had a idea how they did it. Thanks for the drawing and basic start
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Uhhhh.....yeah......pictures or it didn't happen.
We like to see pics of work.
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[QUOTE=DeathBySnuSnu;591748]Uhhhh.....yeah......pictures or it didn't happen.
We like to see pics of work.[/QUOTE]
Yeah that is sort of what I was hoping for. But yeah I will post up pics. I'm a little slower these days and one thing I learned to depend on those that walk is, You can't lol
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Not sure if this helps anyone, but when I was looking at the clutch system, currently stock cable design, to the idea of a hyd. hand lever operation. I see how the idea Rex has could work, but I was off on a mechanical mechanisim design in the mind.
Okay the push rod can only go so far from hand hyd lever system, so if it is at the lower end of a pinned lever, than the proper pivot point, the length of the upper end of the lever is key to travel of the push rod on the clutch arm with placement of the pivot point. If I can only move 1/4 " at the lower end, do to how all is set up would give the amount of travel for top push rod. I do not have proper terms in my mind to use, but I hope this gives the idea, so Rex you play with this idea before ?
This is far as the idea got, but I have been trying to find what I need so that I can see if the idea has merit.:)
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Yes.....but. shortening the trans lever length is also increasing the amount of force required.
You actually want to decrease the amount of force required from your hand.
The car clutch takes more force to operate. The trick is to get its operating force down to grip strength instead of leg strength.
A light spring pressure plate that takes the least amount of travel to work. Like a 800lb diaphragm.
You get it all just right it would probably be like squeezing an aftermarket hot rod Harley clutch.
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learning more every day, and the amount of times that hand is used, well it does not want to be a chore to do but rather with ease. I found the paper, what I was looking at was hydraulic slave cylinder with a push rod, but did not think about force needed to push the clutch lever forward. Very interesting to me, will have to get back to this later.:)
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Hey guys sorry I been away so long on this topic. I had my accident in March of 2018 and it has been slow healing. I am still a t6 complete
so learning how to move around and do things from a wheelchair.
With that said on the hand brake this is where we are so far. Basically it is a handle replacing footpadle. So far works great. First stages of design anyways.
What do y'all think?
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