changing gear in a car

[Ariel Badger]

Do you use the clutch when changing up? I always do but my mate says I am stupid, he just relies on syncro to run the shaft speed up. I have tried do do it but my brain will not let me.
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[Nexus Icon]

Ask him what he believes the benefit to be.
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[The Shaggy D.A.]

Yes. Makes it easier to move the lever out of the gear you're changing from, for a start.
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[lukamon]

fucking hell hope i never own a car after him
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[Ariel Badger]

[Kickstart]

Hi

Would expect the synchros the die fairly rapidly. And not sure that it will make any real difference to acceleration.

All the best

Keith
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[Ariel Badger]

I am glad it is not just me, as I said I have a mental block that will not even allow me to do it.
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[Pedd]

can do it and have done it on lazy occasions lol, but tbh for everyday driving I never do.
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[mistergixer]

It's relatively simple to do, and is good practice to be able to do it in case your clutch cable snaps etc.

But....

My experience is that it's far easier and less complicated to do it with the clutch - with a 'standard' car gearbox, you have to be much more precise with matching engine and wheel speed if you want to do it with any degree of mechanical sympathy.

I've also found that it tends only to be possible at lower engine revs than when using the clutch. For example, I can make a clutched shift at any point in the rev range, whereas with a clutchless shift I find that this is not possible (without crunching/grinding noises, which I generally consider to be a bad thing).

My thoughts are that someone has gone to a great deal of trouble to design and build the clutch in my car, they obviously did it for a reason, and therefore I'm going to use it. This is one of the reasons I disagree with the whole IAM type practice of using engine braking as opposed to the brakes - grossly speaking, the engine is there to speed a vehicle up, the brakes are there to slow a vehicle down. Brakes are consumable items, engines (typically) are not.

All that aside, what car does this chap drive? Does he have an unusual/special gearbox? I've never driven a car with straight-cut gears, anyone know if these are easier to shift without using the clutch? I have driven an old Land Rover with (from memory) no syncro on 1st and 2nd - the double de-clutching that was necessary to avoid grinding was, frankly, a right pain in the arse.
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[Ariel Badger]

I learned to drive in a LR and still double declutch at times from instinct. I cant remember what car it is, typical middle England family type motor.
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[doggone]

I drove a landrover 20 miles to the dealership with no clutch at all due to a fault.
There were two sets of traffic lights but luckily only had to stop at one.
The only way to stop in first was turn the key as it wouldn't disengage into neutral - then start in gear to set off

[blurredman]

I do double clutching sometimes, I gain no less amount of time, but the engine doesn't stress if the change occurs at a low speed.
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[Howling TerrorOutOfOffice]

Had to use clutchless changes on a few vehicles when the clutch has gone. Tricky part was coasting to a stop and starting it in gear to get going again. 1st to 2nd was always cringe time.
On motorways i occasionally do lazy changes into top. Didn't know it knackered the synchros. Will stop now.
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[st3v3]

I can change without clutch easily on the bike, at any revs but the car..

Gearbox says no..

Surely it's more expensive long-term to knacker a gearbox doing this, than simply using the clutch like a normal person?
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[ians238]

how fast does he drive? ffs his gearbox will be shagged

[lihp]

In theory in the car they're simple.

pull gear to neutral rev the engine to match engine speed to road speed of the gear you wish to be in, and slot it in. No harm done, takes a lot of practice though.

[st3v3]

[Rogerborg]

Your mate is obviously very proud of having practiced his little party trick, but if he actually thinks that it assists him to make progress up an H pattern gearbox, he's only deluding himself. Just pat him on the head and say "That's nice, you're a very clever boy."
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[shereen]

[pits]

[Martay]

Ive been changing gear in the car mostly clutchless for over a month as the hydraulic slave cylinder has died. Its pretty simple now ive practiced.
I find that ive i pull it out off gear as i let of the trottle it slips out seamlessly. Then as the revs fall i slot it into the next. However if the revs drop too low it grinds so a blip of the throttle slips it in.
Hill starts are fun!
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[Paulington]