I was just reading about this... so with my T5 can I shift into a different gear without touching the clutch pedal?
not sure if all those G-Force's can do that or not, but I think it's only possible with certian models? Which trans model do you have? PS. yep.. I just looked and it's only the GF-5R, GF-2000, etc that have the clutchless capability. The street units do not. I've wanted one for years, and almost asked you about that in your other SSC thread.. but I just assumed that you would have mentioned such a high dollar piece if you had that particular one.
Some transmissions will, some won't. My Zf 6 speed in my 99 SD F250 will. As will 18 wheeler transmissions. My Toploader I ran in my 89 Ranger would on occasion. Keep in mind you cannot "speed shift" it though this way. You accellerate up to the top of the powerband, then just as you let off the gas, move the shifter out of the gear you're in, into neutral,(click, click, just about the same speed as you're reading this) then to the gear you're upshifting to, letting the syncros do their job. You can downshift the same way, only using the gas pedal to rev, letting the syncros mesh. As long as there's no "gear clashing" it'll be fine, the clashing, if heard, is not the gears, but the syncros and the sliders meshing (or rather, not)
you can shift any transmission with out using the clutch. you have to match the engine rpm to the drive shaft rpm for the gear your choosing. so basically you accelerate, the lightly lift off the gas and pull the trans out of gear. the push the shifter towards the next gear and when engine rpm comes down enough it will go in. now there is a modification that can be done that allows you to "power shift" the trans with out releasing the clutch or lifting on the gas. the syncros are removed and most of the little teeth are removed from the gears and slider rings so there are large gaps remaining between them on there engagement. when this is done you haft to shift as possible or it will grind. its not very streetable. its a dragrace only type of modification.
You want to bang shift like that get a liberty or jehrico box...You can rpm match and shift any stick trans as mentioned but...Dont miss...Its baad gree gree.Power shifting...Now thats a whole nother story...
Shifting without a clutch................is possible if you match RPM's as everyone else has mention......but powershift without a clutch.........unless you have a liberty type trans with blocker rings instead of syncro's......could leave you toothless..............at least the transmission anyway. I just sold my Top Loader Crash Box, as we used to call them back in the day......which was put together by Liberty years ago to one of the guys on this forum, but it is a drag race only 4spd. Here is a picture showing the blocking rings where the syncro's should be. So, just a question........why would you want to shift without a clutch?????
You can, but it is a slow process. Typically, you can pull it out of gear into neutral pretty easily, but to get it into the next gear, you need to apply light pressure to the shifter, and wait for "the powers that be" (engine rpms etc as mentioned above) to come into play, then it will fall into the next gear. I used to drive my chevy luv pickup like that. Clutch for 1st gear, and not for the rest. But where you can bang through all 4 gears in a couple seconds if you are getting on it, without using the clutch, you will spend a couple seconds on each gear waiting for it to sync and fall into the gears.
I doubt that he wants to nuetral throttle shift his car and I think either you guys are misunderstanding his question.. or simplifying it too much.. or I misunderstood it at the beginning. The transmission that the OP has will have the option of straight cut gears(similar to the liberty/Jerico stuff) and can and will enable you to power shift the car un-clutched. The G-Force transmissions are quite a bit cheaper and will not hold as much power as full race type trans.. but they do hold up quite well under full throttle shifts. I have seen them in action from the passenger seat of a 85 Mustang and they are quite good with consistency rivaling a good automatic since you take away the clutch time. It's basically just a poor mans Liberty, is all. And it can be made much more streetable unlike the others. Probably enough vids on the net/youtube to give you an idea that it can be powershifted. Especially since it was designed for racing in the first place. EDIT: yeah.. there's tons of race vids on youtube with these trans. Hardly need to nuetral throttle or wait for anything to mesh up with these bad boys and I'm guessing that the OP would know if he had one that was able to do so. LOL.. crap.. now you guys got me watchin' youtube vids again. Here's another from inside.
it's just out of curiosity, based on something I was reading. I have no intention of getting rid of my clutch.
2nd video looks like Les Claypool banging gears! Killer! You are right...That is nothing like what I was talking about.
Ditto Thats what I did when I was a kid and the clutch plate wore out on my 53 GMC PU. Ive even done it on my Motorcycle after snapping a clutch cable. But what happens if you dont sychonize your rpms when you shift? Grind me a pound while youre at it.
My old GT-1 Mustang had a Jericho and never used the clutch for up-shifting although i did for down-shifting....Had a great whine with those straight cut gears......I'd love to have a sequential that is used a lot in road racing now.....Mucho dineros though
When I was a kid, I drove a 1/2 ton delivery van. One day the clutch linkage decided to disassemble itself on Main St in the middle of traffic. It was quite interesting getting it home that day...
You're the one who's mis-understood this. Straight cut gears vs beveled has nothing to do with shifting. The gears are always meshed in any manual transmission, no matter what gear you're in, the others are meshed too..........always. It's the syncros (blocker rings) that accomplish the locking of the gears together, via the sliders. The purpose of straight cut gears is to minimize the side loading of the transmission case, beveled gears tend to want to move away from each other, straight cut gears, less so. Beveled gears run quieter than straight cut gears, this is why the factory uses beveled gear sets in passenger cars. As has been pointed out here, there are two ways of clutchless shifting, which method he wants to use is up to him.
