Ok, dumb question here, but I want to know, so Ill ask it anyway.
Ive heard that at a certain rpm its feasible to shift without disengaging the clutch. Is there any truth to this? Would it be next to impossible to do? Now before you go thinking Im that stupid, Id definatly only try it on someone elses car.

 

yes, it is possible

 

Possible=yes
Desirable=no

 

I tryed it a few times in my car and yeah it works but i wouldnt do it again.....

at a certain rpm the gear just slides right out and you can put it into the next if the rpm is just right

 

is this teh aka powershifting??? i never driven a stick and have no idea what that is


and isnt it only somewhat feasible on the later years T5's with the addition of better/newer syncros or something?

 

It's called "floating gears". I'm not sure on the details but that's what it's called. I think it's when the rpm of something is equal to the rpm of something else and you can just shift gears. yeah that's all I got.

~Roger

 

Wouldn't you have to achieve double clutching basically? Getting the car into neutral should be no problem right? So after that its just matching the engine rpms to the next gear rpm level? Am I right?

 

my family calls it pwrshifting my friends call it speedshifting, your just matching the syncrhos up so that they dont grind, with our m22 with the strait cut you just listen of the whine to go high pitch and you know its a done deal, make sure u use the 2 finger shift. if it takes more than 2 fingers to push it or pull it out of gear your not doing it right.
Jon

 

I do it at the track sometimes... works great if you know what you're doing.

...but I also have a spare trans I can put in

 

Yeah you'd definitely want to keep one of those handy if you practice this technique consistently

IMHO there isn't a HUGE gain by "speed shifting", I'd rather use the clutch and save my trans.

Because in the long run it's cheaper to fix that.

But shifting without the clutch is definitely do-able and is the only way to drive home a vehicle with a blown clutch, ask me how I know

 

It has nothing to do with double clutching. I once read in a Car and Driver that the professional drivers that Chevy hired to test drive the Corvettes used this method to obtain the best times possible. The article basically said it was amazing to watch, but made no mention of actually rev matching, they made it sound like they could magically do it in any gear, IIRC.



You can put the car into neutral whenever you want without the clutch by the way.

 

When powershifting you use the clutch but you do not lift on the gas.

Speedshifting is when you use the clutch and lift on the gas brefirly between shifts.

Meshing gears is an art and can be done but it takes practice and a nice touch.

Powershifting is the way to achieve the best ET. However, most suck at it and resort to speed shifting. Powershifting is also incredibly hard on driveline components.

 

easily possible, my dad (when we were still living in england) got tired of replacing the ****ty clutch on the peugot 309, and just drove it for a year or so without. it is far harder to shift back down the gears. going up is easy (except for the from stopped)

 

o we still use the clutch from a stop to 1st i mean you have to do that otherwise the car dies but 1-2 3-4 we go without the clutch but its a muncie you can do it with them not t5s well not nonwct5s i know

 

Synchronized trannies cant be shifted at high RPMS or full throttle without the clutch, so before anyone tries this, this happens at low RPMs NOT racing!!!

This clutchless shifting is easy to do and wont so much hurt the gears as after a while might cause the tranny to pop out of gear while cruising. In my car, It happens between 1500 and 1900 RPM, where I can slide it out and into the next gear without the clutch.

Powershifting is shifting gears with the clutch, but never letting off the gas. This is hard on a tranny, but when done right knocks time off the 1/4 and isnt that bad! I have been doing this for years, with no problems, but others blow their trannies on the 4th pass!

 

Much easier to shift up through 13 gears in a truck than to do it with the 5 speed in my car. It works but is always too jerky.

Might be becuase I get used to the Cat engine in the truck and only using 500 rpm powerband. Things happen much slower.

 

I don't know what you guys are talking about when you say that its not double clutching, it is double clutching only without using the clutch. You're pulling it out of gear and getting the motor revved to the same rpm the next gear will put the car in at that speed there by bypassing the syncros. Which is essentially the whole point of double clutching.

 

BRILLIANT!

 

stop granny shifting, and start double clutching like you should be!!

 

awwwwwww who deleted my post

 

Why not just have the transmission proshifted if you want to get into all that?