I want to get rid of my clutch pedel, i want to make my car a sleeper, and want it to look like it has automatic. I also want something like a button on the shift **** so when i press it, it disconects the trans and i can shift. I heard of a similar system being in a VW, does anyone know how this works?. I'm thinking all it is pressurised oil, when the botton is pressed it activates the throw out bearing, or something someone help thanks.

 

Some one has to know something?.

 

Ferrari sells one for around $250k, and comes with a free car attached to it.

Nobody said anything because nobody makes anything like that. Have fun trying to let the clutch out from a stop with something like that.

 

Oh yea benz makes something like that too. Ok anyways i did find a company that makes it, except i cant figure out how it works. It is in korean, and it sells something called a semi automatic trans. It replaces the master cylinder in the clutch asembley, and thats all i can figure out.

 

sounds like you want an auto tranny with a manual valve body

 

Its just that this is my daily driver, and I have to go over a hill to get to work. There is also a stop light on the top. I hate having to hit the cluch and brake at the same time, so I wont roll back into a car. I also live in houston so its always stop, stop, and go traffic so a manual isnt the best but I like them.

 

well like i said before, auto tranny with a manual valve body.. you shift it like a manual but without the clutch

 

Yea,

Why is everyone acting like i'm the only one that ever wanted something like this??

 

maybe cause its the first time we've heard of this on the boards (it is for me..)

 

You know basicaly how a clutch system works??. With a master and slave cylinder, when you press the clutch the master cylinder multiples the amount of pressure you put on the clutch, enough to make it easier (if you ever driven in a 60's camaro you know what i'm saying) to activate the the ... dam I forgot that fork looking thing connected to the throw out baring. Well you could bi-pass the clutch and have a kind of hydrolic eletrical pump, like in lowridders so when you press the button the pump ativates the thing and disconnects the trans and you can shift.

 

that would probibly work, but what about starting off in 1st?

 

Ok I gave this all maybe a hour of thought, I didnt think of that. Do you have any ideas?.

 

ok maybe instead of completly geting rid of the clutch pedal i can make it a switch to start the car so to start it hold the clutch and then the button on the **** i dont know i'm just talking

 

i'm really not sure how you'd beable to rig it up.. with enought time and money you could do damn near anything but end the end would it really be worth it?

 

I may not know much about this subject, but couldn’t an electric motor/servo or solenoid be mounted under the hood or next to the tranny with the power switch attached to the shifter? I too thought it would be pretty cool to do to a manual car. Is there a flaw in using a servo or something to that nature to pull and release the clutch cable?

I wouldn't think it would cost much, just some time and to make sure you have a heavy duty motor so it doesn't break while in traffic or at a light!

 

just buy the new grand am(or is it grand prix) and they have button shifting on the wheel like the rally cars its sweet.

whats so good about making your auto tranny with a manual valve body can it really increase your time in the quarter mile??
does it take no matter the rpm?????? Rage13??

 

You could use an ultra-heavy-duty solenoid to actuate the fork, and as for "easing into the clutch" to accelerate from a light you'd just need a hydraulic dampener (mini shock absorber) to keep it from engaging too quickly. It wouldn't be much good for speedshifting though.....

You could also just buy a 12v linear actuator and fab a bracket to mount it where the salve cylinder mounts, but it may work too slowly to be effective.

 

i belive those button shifting cars are auto too (could be wrong tho)..
anyway, putting a manual valve body in your auto is basicly taking the auto feature out of it. so you have to shift it like a manual, but without the clutch. so you can shift it when ever you want and not lose power thru the clutch (cause there is none)
hope that explained it well enough

 

I was going to buy my tranny from ebay once and this guy was offering a 350 manual valve body and race sprag for a pretty good price I didnt get it cuz I know shipping would be hell!(I live in Puerto Rico)

 

Yea, but automatics cant handle that much power.

 

Use these things .

 

What things??

 

Periods. I cannot hardly stand to read your post because it is all one big runon sentence.

 

Better?? hey man, what do you expect I go to a public school

 

 

Correct me, if i'm wrong.

 

you are wrong..

 

if you consider the options you could either beef up the auto or replace it with a t5 either way your going to pay the same and with similar results

 

it all depends on what your going for

 

ok lets say 500+rwhp or probably more realistic 250+ rwhp the reason i say automatics are weak is because most people that replace there tpi with a lt1 blew there automatics and that isnt that big of a gain of power

 

but you also have to look at how they were taken care, before and after the swap, how meany miles, if there were any little problems before they did the swap and just time.. 10-20 years of wear takes its toll after a while..

 

yea but still you lose like 15-20% horsepower thru the automatic compared to a manual where its a fraction of that (if all things equal)

 

yeah, but thats one of the trade offs.

 

ok i give you that ok i'm going to go read a book about hydralics then on how clutches work and i'll come back

 

You need a powershift transmission like in Cats and John Deere heavey equipment. Like a munual but with a torque converter and there is no clutch.There is no way in hell that you will break it plus you would have either 3 or 4 gears in forward and reverse.

Course the tranny alone might weigh more than you whole car and I don't know of any conversion kits for the F body's off of the top of my head.

 

With a car that actually is fast you will be faster with an auto than a manual. Even though you loose more power through an auto, the quicker shifting makes up for it if the car is fast enough. You also have more torque multiplication from the torque converter. All this said, I am in the middle of a t56 conversion. I would rather drive a manual, but for a car that you plan on drag racing an auto is a better choice.

Ben

 

Anyone notice how this guy says he wants to do this to be a sleeper? Since when do you become a sleeper if you have an automatic? Since when do people even look inside your car when you are racing? Like others have said, just get an auto with a little higher stall and you will be faster than a manual anyways. If you still wanna shift for some reason get a manual valve body like stated before.

 

You took it out of context

 

Screw the button, I think it woudl be alot cooler to take a 4l60-e and setup a control box with a paddle shifter. I really dig the idea of having push button shifting so i can have engine braking for those many rapid rotor warping slow-down-for-turns i make without having to take my hand off the wheel and mess with the shifter. Plus im a huge ralley racing fan.

 

sounds like a good idea and all but you'd be burning clutches in the TQ left and right, as well as the clutches in the tranny..

 

if the shifting delays where set up right it probably woudlnt be a problem. I dont see how its much different then shifting under power other then it would have to shift under load 2x as much in high performance driving. It would jsut be transmitting the torque the other way. The tcc is an issue, though. I like what honda did. Honda delays the tcc lockup untill the manual downshift is complete. Once it is, the tcc locks up to give optimal engine braking. I dont know how well this would fly with the engine braking form a V8 but it works well with the 4 cyl.

lol... burning clutches... im lucky my present trans still works considering the way i treat it.

 

what honda was that in? and do you have any sites that go into detail?

 

im my old (new) 98 accord ex. This is manually shifting with the gearshifter lever. It also did this under normal shift down operation as well as with the cruisecontrol to maintain the desired speed. The brakes in that thing sucked *** and with my driving, i needed all the help i could get to slow down. I wish there where some sites that detailed and discussed the operation of their newer cars but most of the people that own these things arnt in the 'know' like alot of TG owners are, if you know what i mean.