Clutchless shifts.

[Drunken Monkey]

Same here but only after engine/g'box are warmed up.

Why do boy racers blip the throttle (sometimes double-blip) when changing UP?? WTF? I guess they think it sounds cool even if it is the wrong thing, (try it without using the clutch sometime) plus it makes for a slower run up through the gear - and they do it while caning the car away from the lights!!! :unsure:

If you have a lightened flywheel, your revs drop quickly. If you're not doing a full power/fast shift, you blip the gas during your slow shift to keep the revs in the ideal range for the gear change.
Not crazy.

As for doing clutchless shifts on your bike (and any car fitted with dog gears), that's what dog gearboxes are for. Load the shifter (but don't force it), then 'blip' the throttle, the shift fork should slot the next gear into place.

Clutches are for takeoffs and grandmas...

[Drunken Monkey]

I doubt if there would ever be a need to blip in upshift in any car.But some of the old trucks with an aux box need to - I used to do this whole opperation clutchless....coming up on the govenor you pull the main box into neutral on the upshift,but you need to shift the aux box into low,so a blip on the throttle sees a down change in the aux,then you wait,and wait as the revs come down enough to slip the main box in the higher gear...a two handed job.I like doing this on twin stick Mirages too.

A a kid we used to go out with the drivers during school holidays when my father worked for Bonney's,over the Bombay Deviation several times a day - we used to love going in the big Inter.It had a white steering wheel and white knobs on it's two gear levers - crawling up with a truck and trailer load of sand picked up from Meremere the driver,just a little guy,would be working like crazy on the sticks - he'd hook his arm through the steering wheel and lean right over to reach the levers,his head under the dash...feet and arms working like crazy...down one gear and up another,the Inter had a 5 speed main and 4 speed aux...back when truck driver were truck drivers.

Don't you blip in up (and down) shifts, during your 'double declutch', in old trucks becuase they either didn't have synchros, or the synchros needed 'assistance' to get close to the right range to work in? Remember having to do that in an old landy with no synchros.

[scumdog]

If you have a lightened flywheel, your revs drop quickly. If you're not doing a full power/fast shift, you blip the gas during your slow shift to keep the revs in the ideal range for the gear change.
Not crazy.

As for doing clutchless shifts on your bike (and any car fitted with dog gears), that's what dog gearboxes are for. Load the shifter (but don't force it), then 'blip' the throttle, the shift fork should slot the next gear into place.

Clutches are for takeoffs and grandmas...

When has a boy racer NOT done a full power/fast shift?

And how many have lightened flywheels nowadays? (most seem to drive blaaaaaaggggggh-blaaaaaghhhh autos) or even know what a flywheel is? :spudwhat:

Nah, convinced they do it 'cos they think it sounds cool - whereas we think it sounds like they missed a gear!

[Drunken Monkey]

And how many have lightened flywheels nowadays? (most seem to drive blaaaaaaggggggh-blaaaaaghhhh autos) or even know what a flywheel is? :spudwhat:

Well if people are going to continually lump all Japanese performance car enthusiasts in the "boy racer" group, which appears to be the current trend here, then I can safely say there are 'many' cars withn lightened flywheels, and plenty of them know what lightened flywheels are.

Not everyone who drives a performance Japanese car is 17 years old, $20,000 in finance, pulls his undies up over his trouser belt line and wears his cap backwards.

[Motu]

Don't you blip in up (and down) shifts, during your 'double declutch', in old trucks becuase they either didn't have synchros, or the synchros needed 'assistance' to get close to the right range to work in? Remember having to do that in an old landy with no synchros.

Of course you have to match revs on downshifts,so a blip yes,and sorry for the rave,but if you bother to read it...it will explain the only reason you need to blip on an upshift.Without a clutch too,so double de no clutch.Truck gearboxs have ''dogs'' same as a bike.

I remember bringing in a Landrover with ''no clutch'',it had an overdrive box,and I was able to drive it by selecting 3rd,then low ratio,low in OD box...then by starting in gear I was able to upshift on the dog boxes easy.A Landrover has crash 1st and 2nd...3rd and top are syncro.

[scumdog]

Not everyone who drives a performance Japanese car is 17 years old, $20,000 in finance, pulls his undies up over his trouser belt line and wears his cap backwards.

No but unfortunatly so many of the "braaagh-blip-blip-blaaargh" brigade fit EXACTLY into that description - and most of the time their "modification" is a pod filter or woo-hoo a K&N filter.

You forgot to add: the sunnies on top of the head at 3a.m., the piss-poor attempts at facial hair, the boat sized sneakers that never get unlaced and the blue aura around their face from the cell-phone they're txting with as they drive Stereotyping? - Nahhh!

BTW Lots of those with grunty Jappas don't drive like that (well not constantly from lights-to-lights or other built-up area like the 'other' type do) and consequently normally have 'police-free' night of cruising.

[John]

No but unfortunatly so many of the "braaagh-blip-blip-blaaargh" brigade fit EXACTLY into that description - and most of the time their "modification" is a pod filter or woo-hoo a K&N filter.

You forgot to add: the sunnies on top of the head at 3a.m., the piss-poor attempts at facial hair, the boat sized sneakers that never get unlaced and the blue aura around their face from the cell-phone they're txting with as they drive Stereotyping? - Nahhh!

BTW Lots of those with grunty Jappas don't drive like that (well not constantly from lights-to-lights or other built-up area like the 'other' type do) and consequently normally have 'police-free' night of cruising.

Sorry to be abit random, but for example - pod filtering a escudo is a perfect example, ask tristanK for more details.. lmao

[TwoSeven]

I dont blip because I find it too slow (personal taste), nor do I do clutchless shifts because I find them a wasted effort for the benefit of having to rebuild the bike every now and again (again personal taste).

I do whats called a half shift going up thru the gears. Thats where you just unload the engine enough to snick the gear but not enough to have to back off the throttle too much. My bike drops 4k rpm on the upshift so I change at 14.5k to drop it onto 10k (peak power), the over run is 2k with the clutch so it bounced off 16k (redline) a little. I run a about a mil. of lever travel, so its just finger pressure to change gears.

I'm weird on throttle control as I dont link throttle and clutch together. Its all independant. For me, throttle is setting engine speed and clutch is controlling delivery to the rear wheel. As a comparison to most people that will have the throttle either shut on opening up with clutch fully engaged - i'll set it at different points and hold it. Sometimes you have to switch over to the other technique, but only for certain circumstances.

That makes downshifts for me a little interesting as i'll set the throttle where I want it then feed the clutch in and out to control delivery and feel what the engines doing. I find dabbing the clutch means I dont have to use the front brake which smoothens things out dive wise- it also means I can go down 2 and 3 gears at a time rather than each individually - but thats only personal tasts rather than anything you should or shouldnt do.

The only trade off is that removing the driving force from the rear wheel means that it will skid if you use the rear brake (or drag it too hard). So you have to remember to get the balance of rear and clutch right under heaving braking.

[Wolf]

I used to specifically practice clutchless shifting and getting the revs right for as quiet a shift as possible. It stood me in good stead on two occasions when I suddenly found I had no choice - when the clutch cable broke.

Clutchless changes are one thing, clutchless take-offs are a whole different matter.

Instructions for approaching lights: Clutchless shift down, using engine to brake as much as possible, select Neutral (this may involve hitting first and jiggling the lever up slightly), coast towards lights then use brakes to stop.

Instructions for starting at lights: Kick yourself frantically along like your motorbike is some kind of over-weight velocipede, grit your teeth, rev engine and kick into first, feed power, ignore horrific noise and sudden jarring, accelerate away and clutchless shift smoothly up through the gears - if your jangling nerves and shuddering body will let you.

Choose a route home that does not require an uphill start and repeat procedures as necessary.

[Motu]

Imagine if you had a clutch cable break on a heavy child/adult sidecar - fortunatly I was able to slam it into gear in gravel at the top of the Albany hill,then rode it to a friends in Matakana where we spent the day playing on trials bikes and bludged a lift back home.Went up and fitted a new cable next week - I wasn't game to handle Auckland traffic with that rig and no clutch!

[Ixion]

Imagine if you had a clutch cable break on a heavy child/adult sidecar -

Had that happen. Easy peasy. **IF** you are lucky enough that the clutch actuating level on the gearbox is accessable enough to clamp a Vicegrip over. Instant foot clutch, actually not so bad with a chair. That was one advantage of the early Triumphs they had a trick called slickshift, which basically threw out the clutch when you waggled the gearlever. Most folk disconnected it, but I always left mine operational., Never used it EXCEPT when the clutch cable broke. Didn't work well for moving off though.

Also rode a Beeza Bantam for about a month using a spanner clamped on the clutch pushrod adjusting nut. Foot on spanner - disengaged clutch. Off road even ! (Hey, I was broke - couldn't even afford to buy the makings for a cable)

[Wolf]

Had that happen. Easy peasy. **IF** you are lucky enough that the clutch actuating level on the gearbox is accessable enough to clamp a Vicegrip over. Instant foot clutch, actually not so bad with a chair. That was one advantage of the early Triumphs they had a trick called slickshift, which basically threw out the clutch when you waggled the gearlever. Most folk disconnected it, but I always left mine operational., Never used it EXCEPT when the clutch cable broke. Didn't work well for moving off though.

Also rode a Beeza Bantam for about a month using a spanner clamped on the clutch pushrod adjusting nut. Foot on spanner - disengaged clutch. Off road even ! (Hey, I was broke - couldn't even afford to buy the makings for a cable)

Rugged! You make my TS125 with its heavily bandaged muffler and missing side stand ("she'll be right, just prop her against a tree") look like the very pinnacle of luxury.

[Ixion]

..missing side stand ..

Side stand ? Do you realise how much those things weigh. When you're limited to bantam power every ounce counts!

[scumdog]

Imagine if you had a clutch cable break on a heavy child/adult sidecar - fortunatly I was able to slam it into gear in gravel at the top of the Albany hill,then rode it to a friends in Matakana where we spent the day playing on trials bikes and bludged a lift back home.Went up and fitted a new cable next week - I wasn't game to handle Auckland traffic with that rig and no clutch!

The very reason that I HATE cable clutches, you and Wolf just emphasize it.