Just wondering if anyone has tried to shift w/out using the clutch.
Now on my big rig 9 speed shift up/down is easy w/out the clutch...once ya know the shift point rpm areas.
My 06 will come out of gear quite easly w/out the clutch but I haven't had the nerve to try and get it in gear w/out the clutch...yet
big rigs generally have straight cut teeth and you can do it, just like with motorcycles, but dont do it with the car. I really fail to see the point in shifting without the clutch.
shifting without the clutch or "powershifting" is just using the throttle to change gears
when you shift up just pull the shifter out of gear and hold it into the next position, when the rpms drop to the right level it will engage that gear
downshifting is the reverse procedure where you have to increase the revs to find the sweet spot
it's a good thing to be able to do it your clutch ever fails you, espicially with a car with a cable clutch.
you have to be at the EXACT rpm to do it. I just do it by holding the shifter and giving it a little pressure against the stop, it will allow the shifter in at the proper time and the shifter will slide into place. Same type of theory for downshifting, but it's harder. I say neutral and use the brakes if it was to happen.
Yes it is possible to shift without the clutch, but theres one main difference between a big rig and a little dinky car tranny, syncro's, on a big rig there are none so no problem thats the way its supposed to work....
On a car the syncros are there to match the speeds to prevent grinding, when you shift with the clutch the syncros only have to match the input shaft speed if you try to shift without the clutch you now need the syncros to match the engine speed along with the input shaft, basically its extremely hard on the syncros and will wear them out prematurely.
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Ah when she was in her glory, Not so nice anymore 358k 17years old her time is getting short ....
Yes it is possible to shift without the clutch, but theres one main difference between a big rig and a little dinky car tranny, syncro's, on a big rig there are none so no problem thats the way its supposed to work....
On a car the syncros are there to match the speeds to prevent grinding, when you shift with the clutch the syncros only have to match the input shaft speed if you try to shift without the clutch you now need the syncros to match the engine speed along with the input shaft, basically its extremely hard on the syncros and will wear them out prematurely.
And that above is the answer I was looking for..."syncros"...and thank you sir!
Just wondering if anyone has tried to shift w/out using the clutch.
Now on my big rig 9 speed shift up/down is easy w/out the clutch...once ya know the shift point rpm areas.
My 06 will come out of gear quite easly w/out the clutch but I haven't had the nerve to try and get it in gear w/out the clutch...yet
Yes it can be done. Being a former heavy equipment mechanic and big rig driver I knew how the operations of a transmission both automobiles and big rigs. One day my clutch slave blew and I needed to get back home so instead of calling a tow truck I drove my car back home. At a dead stop I had the car in gear and started the car and then shifted with out using the clutch. I just revved the motor slightly to match engine speed with the transmission speed and the gears shifted easily.
I have played around with it. Its actually quite easy up shifting, just take your foot off the gas and a normal (in terms of speed) shift will do, it will just pop into place.
The tranmission will grind if the RPM of the engine is lower than the RPM of transmission. This is key. So usually on an upshift, the engine rpm's fall slower during a shift than time to change gears. For downshift you have atleast match or exceed the rev for the tranmssion to pop into place. You really need to know your cars gearing/rpm inside and out before attempt this regularly. If you want to practive it, attempt the shift with the clutch first and note th eRPM/speed and then try it again without the clutch. I alway try to exceed (over estimate) the RPM a little because if you get too cute with match the rpm and miscalculate, the grind of the gear box will rudely remind you that you screwed up...
In terms of racing. I always prefered the WOT speed shift (ie stab the clutch to release it so I could get it out of gear.) I have tried the clutchless racing, but I always had to release the gas to get the engine of gear and co-ordinate it with my hand. I only tried this on my friend beater that was going to a junk yard, but I screwed it up too many times on that beater that I was afraid to try it my car.
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Shifting..w/out clutch?
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