Clutchless shifting? Does anyone try it?

[zap.FREEDOM]

Guys, nung isang araw pag sakay ko sa jeep, I was amazed at the jeepney driver when shifting from 2nd gear to 3rd then 4th gear, hindi na nagcclutch, then I asked my friend how is that became possible, sabi niya natural lang daw yun, clutchless shifting daw ang tawag then, I just want to try it pagnagdrive ulit ako ng M/T. Ang alam ko lang kasi kapag naka-gear ka pwede munang hugutin/i-disengage agad to neutral kahit hindi tatapak ng clutch.

so, does anyone tried it before?

[desert fox]

I heard that before...posible nga yan...depende sa clutch at gear control....swertihan ang MT...me malambot at matigas na clutch pedal..minsan konting kadyot lang pasok kaagad.

minsan kahit ilang kadyot hirap pumasok.....

katulad ke mamang driver, kahit walang kadyot pasok na kambyo nya....

[Ginnova]

madalas ko rin nakikita yan sa mga jeep. have not tried it though.

[yapoy86]

given the right engine rpm, vehicle speed and timing of shift, clutchless shift is possible.. you can do that 2nd gear to 5th gear pero usually low speed mo lang magagawa kung bumibirit ka hindi pwede..

[greatauror28]

Having driven a Nissan Urvan - konting apak lang sa clutch pwede mo na i-kambyo
unlike sa Toyota HiAce ko ngayon - dapat mas malalim ang pagkaka apak mo sa clutch para pumasok ng smooth yung kambyo

[yapoy86]

^ hindi clutchless yung ginawa mo eh may konting apak ka pa eh.. ang clutchless yung nag shift ka without pressing the clutch..

[greatauror28]

^ hindi clutchless yung ginawa mo eh may konting apak ka pa eh.. ang clutchless yung nag shift ka without pressing the clutch..

Yep, my post was a bit OT, but it still discusses shifting

anyway, I won't try it coz kapag hindi nga sagad apak ko sa clutch tumutunog na eh, like scraping metal on metal

[ghosthunter]

Guys, nung isang araw pag sakay ko sa jeep, I was amazed at the jeepney driver when shifting from 2nd gear to 3rd then 4th gear, hindi na nagcclutch, then I asked my friend how is that became possible, sabi niya natural lang daw yun, clutchless shifting daw ang tawag then, I just want to try it pagnagdrive ulit ako ng M/T. Ang alam ko lang kasi kapag naka-gear ka pwede munang hugutin/i-disengage agad to neutral kahit hindi tatapak ng clutch.

so, does anyone tried it before?

Yes, I have done it. It takes a bit of practice to get the timing right with the gas pedal and shifter. And you can only do it when you are on the move, minimal traffic helps.

But even with the best timing, you will crunch the gears which will lead to premature wear & tear. Each time you "crunch" the gears, it shaves off some metal filings into the gear oil. Do it often enough and your gear oil will be more metal than lubricant.

Just save this for emergency driving when your clutch pedal has failed or similar.

[niky]

Yes, I have done it. It takes a bit of practice to get the timing right with the gas pedal and shifter. And you can only do it when you are on the move, minimal traffic helps.

But even with the best timing, you will crunch the gears which will lead to premature wear & tear. Each time you "crunch" the gears, it shaves off some metal filings into the gear oil. Do it often enough and your gear oil will be more metal than lubricant.

Just save this for emergency driving when your clutch pedal has failed or similar.

Second this. While it's possible to time it so that you won't get a gear crunch, you will still grind them from time to time... so they'll wear down.

On old-school rear-wheel drive diesels, the gear cogs are big and durable, so it's easy to do this... hell... the older the gearbox, the easier, as the edges of the teeth wear down over time. But with modern, compact five or six speed front-drive boxes in sedans and hatchbacks, the chances of stripping gear or synchro teeth are much higher.

[cripple_rooster]

Yes, I have done it. It takes a bit of practice to get the timing right with the gas pedal and shifter. And you can only do it when you are on the move, minimal traffic helps.

But even with the best timing, you will crunch the gears which will lead to premature wear & tear. Each time you "crunch" the gears, it shaves off some metal filings into the gear oil. Do it often enough and your gear oil will be more metal than lubricant.

Just save this for emergency driving when your clutch pedal has failed or similar.

It's true for these newer fully-synchromesh gearboxes, but older vehicles with non-synchromesh gearboxes don't have any problem to shift gears without the clutch at the timing. If you take a look at those newer automated-manual transmissions, such as VW/Audi's DSG and Opel's Easytronic, you'll figure out they're essentially a non-synchromesh gearbox with a robotic actuator for the clutch and shifters.

[niky]

You can still grind the gears if you try to force it without rev-matching. And it will still hurt. (Learned from much practice. )... the okay thing with those old diesels is not only are the gears not synchromesh... they rev very slowly, so rev matching is much easier.

[cripple_rooster]

You can still grind the gears if you try to force it without rev-matching. And it will still hurt. (Learned from much practice. )... the okay thing with those old diesels is not only are the gears not synchromesh... they rev very slowly, so rev matching is much easier.

Oo... I prefer to not force the gears too much. About old diesels, one more advantage for them. Actually, since the torque is usually higher than in a gasoline-powered vehicle, it demands less gear-hunting...

[LeBRONghini6]

[shadow]

What's the point of doing this? Your car has a clutch system then better use it.

[ghosthunter]

What's the point of doing this? Your car has a clutch system then better use it.

Back when I used it, my clutch cable broke. hehehe! Hence no clutch pedal action. Before that, I tried it a few times successfully, but never had to drive through EDSA as I did when my clutch cable broke.


Generally, it saves time between shifts. Great when racing.

[niky]

Great to learn for racing, because if you can rev-match well enough to do a clutchless shift, you can shift faster even with a clutch... as you:

1. Won't have to wait for engine speed and wheel speed to match after shifting.
2. Won't experience shift-shock when shifting mid-corner, which means you won't upset the car's balance and potentially cause a spin.
3. Won't wear down the clutch as quickly.

[zap.FREEDOM]

What's the point of doing this? Your car has a clutch system then better use it.

nakakatuwa lang kasi, parang sporty din e, kaso mukhang mahirap. It's like doin' a trick while driving.