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Chaz 02-Feb-2005 21:15

J ust trying to open one those boxes of whine Redruth but i'm buggerd if I can find were the hell to put the corkskrew.

Redruth 02-Feb-2005 23:30

Right, just read through what's on here. Comments as of 21.423 pm

Who was the bloke who said it's typical for a woman to start a bun fight? You are disqualified :frog: Oh yeah, Chief ... you are out, mate!

Secondly, I always blip unless I'm going too slowly. I learnt this driving a porsche. You blip as you change down, match the revs, its soooo much smoother. Anyone who knows anything about driving high quality engines knows that.

Thirdly, Loverly to see you on here Skidywids. ;)

Keep it coming! :cool:

madmav 02-Feb-2005 23:35

Ruth is there a prize for posting a Q

and answering other Q?????;)

Redruth 02-Feb-2005 23:48

Mav. There's one prize. See the PRIZES thread. There MAY be a runner up prize but I'm determined not to be sidetracked with suggestions of how prizes should be awarded.

I think I now have 4 fellow judges. CK, Lizzie, CK, me and (tentatively) a guest judge. Also, I may have a bit of a celeb lined up for prizegiving which would be a sham as prizes will be awarded shortly after the result is announced but I'm trying to line up a bit of a celebrity prize giving on the first Desmo Due race meeting.

May cost me a bundle or may not come to fruition. We shall see. :ninja::ninja:

Redruth 02-Feb-2005 23:51

Should have read
Lizzie
CK
DickieD
me
one pos. other
sorry
wine box to blame
AGAIN :devil:

ericthered40 03-Feb-2005 01:33

?
 
? Cast Magnesium wheels.
1/ Do they suffer from internal corrosion
2/ If you dent them can you bash them strait
:puzzled::puzzled::puzzled::puzzled::puzzled:::fro g:

skidlids 03-Feb-2005 01:39

Yes and Yes, but bashing them round again is not adviseable

How long is the working life of a Mag wheel ???
Best you answer that one Shazaam, save me going and trying to look it up.

electricsheep 03-Feb-2005 08:51

Blipping

At the end on a long 6th gear straight, going into a 2nd gear corner. Where would you blip ?

Before selecting 5th
Before selecting 4th
Before selecting 3rdh
Before selecting 2nd
As Selecting 2nd
After Selecting 2nd

Or some other time ?

For me it's Clutch in 5th,4th,3rd,(2nd and blip same time) clutch out

Also if you have a slipper do you bother blipping at all ?

Redruth 03-Feb-2005 14:20

Quote:

Originally posted by electricsheep
Blipping

At the end on a long 6th gear straight, going into a 2nd gear corner. Where would you blip ?

Before selecting 5th
Before selecting 4th
Before selecting 3rdh
Before selecting 2nd
As Selecting 2nd
After Selecting 2nd

Or some other time ?

For me it's Clutch in 5th,4th,3rd,(2nd and blip same time) clutch out

Also if you have a slipper do you bother blipping at all ?

If you're tapping down through the gears, surely you're only going to blip once just before you let the clutch out in 2nd?


I'd like to reiterate the question about the slipper clutch cos I'd quite like to get one as my biggest fear on the track is locking the back wheel and being spat off forwards!



:o

guest1 03-Feb-2005 14:46

Either:
1 - to increase the engine speed to such an extent as to ease the meshing of gears when changing down so blip before change(i.e. the lower gear is teeth are moving faster than the previously selected gear teeth - layshaft and main shaft). Much like trying to grab onto the waltzers when they're already whizzing around, it's a damn site easier if you run around at a similar speed.
or
2 - The blip is required to notify the forward traffic of your intention to perform an overtaking manouevre, much like the flashing of headlight to notify other road users of your presence. Particularly effective when using termis

NBs996 03-Feb-2005 15:18

Not sure I'd be holding the clutch in with no throttle while going 6-5-4-3-2
Treat each gear change separately or by the time you get to 2nd the engine might've stalled.
Clutch-blip/click-clutch for each gear as speed reduces, that way the engine keeps closer to the desired rev range and you know you're in the right gear when you let the clutch out, and also the back-torque on the tyre helps it grip the tarmac rather than liftup or wiggle sideways.

Ruth, for slipper clutches your best explanation would be Neil's writeup on http://www.sigmaperformance.com/slipperclutch.html


[Edited on 3-2-2005 by NBs996]

skidlids 03-Feb-2005 16:28

Ruth i'll keep it simple

SLIPPER CLUTCH WORTH EVERY PENNY when your on the track,
also very nice to have on the roads in winter, on the roads in the summer I could live with out it if I had to but i don't have to. Only got a standard 748R one in the 916 and have used it for racing, trackdays and road abuse.

As for downward gear changes, 3 at once with one blip would be nice when in the middle of a race, but doesn't usually work that way, High speed into a hairpin with late braking either trying to overtake or not get overtaken there can be alot going on and sometimes the down changes don't quite go righ

electricsheep 03-Feb-2005 19:32

Quote:

Originally posted by guest1
Either:
1 - to increase the engine speed to such an extent as to ease the meshing of gears when changing down so blip before change(i.e. the lower gear is teeth are moving faster than the previously selected gear teeth - layshaft and main shaft). Much like trying to grab onto the waltzers when they're already whizzing around, it's a damn site easier if you run around at a similar speed.

This is the bit I have a problem with, with the clutch in the engine is not attachd to the gearbox, so it cannot effect engaging the gear. I think this is a misconception based on old non syncromesh gearboxes that needed to be double clutched on a down shift.

electricsheep 03-Feb-2005 19:39

Quote:

Originally posted by NBs996
Not sure I'd be holding the clutch in with no throttle while going 6-5-4-3-2
Treat each gear change separately or by the time you get to 2nd the engine might've stalled.
Clutch-blip/click-clutch for each gear as speed reduces, that way the engine keeps closer to the desired rev range and you know you're in the right gear when you let the clutch out, and also the back-torque on the tyre helps it grip the tarmac rather than liftup or wiggle sideways.

Ruth, for slipper clutches your best explanation would be Neil's writeup on http://www.sigmaperformance.com/slipperclutch.html


[Edited on 3-2-2005 by NBs996]

If the bike is stalling while downshift multiple gears, then I would be looking at adjusting sometime on the engine. BTW 749's are prone to this and I am having it looked at on my own bike soon.

Engaging each gear on the way down the box makes for very busy braking on the track. However if it is working for you I would stick with it. It does not work well for me

Redruth 03-Feb-2005 19:49

Oh god. I'm just sitting here in the office thinking I have soooo much to organise for this season and I can't do any of it till I move house (which I also have to organise, damn it)!

Having now made up my mind that the slipper clutch is essential, I need to get that sorted, along with the gearing changes. I also have to get hold of track fairings, a single seat (not to mention hugger which I still haven't bought although Keefer's on the case! :D). I need a trailer, I need to book and pay for several trackdays, some of which have to be with No limits so I can get coaching from WJB or Dave Lawson, and in the middle of all this I'm supposed to be passing 'masters level' exams. :o:o I'm feeling sick just thinking about all the stuff I haven't organised yet. :barfy:

Sorry, unhinged moment over. Back to the Questions
:burn:

TP 03-Feb-2005 19:51

Get it together Ruth!

Can you hear the box calling?

Redruth 03-Feb-2005 19:53

Quote:

[i]

Can you hear the box calling?

I'm not with you?

NBs996 03-Feb-2005 19:54

Very acceptable answer mr sheepychap.
The stalling is very unlikely, but it did happen to me just the once. Possibly something to do with the lighter flywheel not keeping enough inertia in the engine? Maybe the throttle stop needs turning up a little? Or a combination of both. Or maybe a big bit of chome off the rockers got stuck somewhere it shouldn't! :lol:
But it did make the bike very unstable at the back while it was trying to bump-start itself.

Initially the clutch on every gear was very busy and didn't work too well, but I stuck with it and now it's quite a slick operation which only uses half my brain cells, leaving the other one free to think about everything else!

But yay, do what works, sometimes there's no right or wrong.

TP 03-Feb-2005 19:56

Quote:

Originally posted by Redruth
Quote:

[i]

Can you hear the box calling?

I'm not with you?

The wine box ...

monstermob 998 03-Feb-2005 20:06

Quote:

Originally posted by tp-996
Ruth, all these posts are bollox.

You're bike is simply upset that you put it to bed wet so it gets cold. Dry it off, get a garage heater and make sure it feels loved and this will never happen again.

Dr TP

GET A CHEAP ELECTRIC LEAF BLOWER FROM ----ARGOS? WASH BIKE --BLOW WATER OFF -- JOB DONE
works for me

electricsheep 03-Feb-2005 20:19

Quote:

Originally posted by tp-996
Quote:

Originally posted by Redruth
Quote:

[i]
Can you hear the box calling?
I'm not with you?
The wine box ...

:lol::lol::lol::lol:

BTW when you get the slipper make sure you get the right type..
I'm sure one of the real experts will advise, but it's something to do with ramps and balls, sorry I mean ballbearings :D:D

[Edited on 3-2-2005 by electricsheep]

NBs996 04-Feb-2005 00:25

From memory of a previous post, which I can't find, there's two different types.
They both work on the principle of ramps in the clutch drum forcing the pressure plate to ride up under back-torque. One type has bearings separating the ramps, the other type doesn't.

I'd assume the bearings would make for a smoother and more consistent action, where the ramps w/o bearings would act different under varying temperatures. Simple physics.

Can someone correct me, or expand on that one please??

Redruth 04-Feb-2005 00:33

Quote:

Originally posted by monstermob 998
Quote:

Originally posted by tp-996
Ruth, all these posts are bollox.

You're bike is simply upset that you put it to bed wet so it gets cold. Dry it off, get a garage heater and make sure it feels loved and this will never happen again.

Dr TP

GET A CHEAP ELECTRIC LEAF BLOWER FROM ----ARGOS? WASH BIKE --BLOW WATER OFF -- JOB DONE
works for me

Do you know, that's bloody marvellous. I have a leaf hoover/blower. I was gonna give it away. But of course, it could do that job. Flippin' 'eck. Fancy that big green useless piece of black & decker kit could actually do some good! I will try that tomorrow evening after riding into town.

Cheers, monstermob. :D:D

monstermob 998 04-Feb-2005 08:04

thought of this when i was sat in car wash whilst haveing the car blow dried!!!!advantage is when you give your bike a spray with wd40 or what ever the water doesnt get trapped in behind the wd40 and the white deposits left by the water on your waxed paint work are history!!!;)

JPM 04-Feb-2005 11:08

OK, another question, I have my own understanding of it, but lets see if 1. I am right/wrong 2. there's a far more plausible answer 3. complete tripe...

Dished plates in the clutch.... why?

chief 04-Feb-2005 13:12

Who cares, about all this...... the faster you go the bigger the smile :D

Never mind blip blip blop

Redruth,
I'm disqualified?

What about expanding this competition.........
Who's got the best avatar?........................................... KwickBitch?
Who's the richest?.......................................... ...............Lord Rattler?
Who's the funniest?......................................... ..............Dave W, Dibble?
Who winges the most?............................................. .....?????

Just a thought :rolleye:

NBs996 04-Feb-2005 14:17

Quote:

Originally posted by jpmercer
OK, another question, I have my own understanding of it, but lets see if 1. I am right/wrong 2. there's a far more plausible answer 3. complete tripe...

Dished plates in the clutch.... why?

I'd've thought it would be to help keep them in line, stop them moving sideways. Cos if the offset slightly from central then the clutch would shake itself to bits!

What's your theory then JPM?

JPM 04-Feb-2005 14:56

I didn't think of that.... mine would be proper engagement/disengagement of the clutch, adding an element of play into the clutch pack, but I have no facts or figures to back that up.

748mart 04-Feb-2005 15:03

My guess is the dished plate provides a bit of 'springiness' to the clutch pack, smoother engagement, less squeal.

Shazaam! 04-Feb-2005 15:06

Dished Clutch Plates

During acceleration the clutch is prevented from slipping by the frictional force between plates. The higher the torque output of the engine, the more frictional force that is required. In order to get more frictional force, you need more force to push the plates together. The force holding the plates together is determined by the compression of the clutch springs, which in turn, is controlled by the stiffness of the springs and the amount that they are compressed, i.e. the height of the clutch plate stack.

There are two values of frictional force that can exist between the clutch plates: static and sliding. The coefficient of static friction is always higher than the coefficient of sliding friction.

Smooth progressive clutch engagement requires that the force transition between sliding and static occur gradually, and this is why a curved dished plate is placed in the clutch plate stack.

When the clutch lever is released, the push-rod moves the pressure plate, which in turn moves the slipping plates together, transmitting increasingly higher torque to the rear wheel. At some point, the force between plates is sufficient to cause a transition between static and sliding and the difference in the two coefficient of friction results in an abrupt change in torque output. The clutch grabs suddenly.

To minimize this suddenness, a dished plate is added to the plate stack. A dished plate is essentially a spring that exerts a force between the plates when it becomes flattened so as to give a more progressive force between plates than can be achieved using the stiffer clutch springs.

madmav 04-Feb-2005 16:09

Quote:

Originally posted by chief
Who cares, about all this...... the faster you go the bigger the smile :D

Never mind blip blip blop

Redruth,
I'm disqualified?

What about expanding this competition.........
Who's got the best avatar?........................................... KwickBitch?
Who's the richest?.......................................... ...............Lord Rattler?
Who's the funniest?......................................... ..............Dave W, Dibble?
Who winges the most?............................................. .....?????

Just a thought :rolleye:

WHo's THE LEADER?????????????;)

TP 04-Feb-2005 16:15

Quote:

Originally posted by chief

What about expanding this competition.........
Who's got the best avatar?........................................... KwickBitch?
Who's the richest?.......................................... ...............Lord Rattler?
Who's the funniest?......................................... ..............Dave W, Dibble?
Who winges the most?............................................. .....?????


avatar - Mogwai
richest - Lord Timothy
funniest - hrmm .. tough one .. have to think about this one
whinging - biting my tongue so hard it's nearly in two!

who is the leader? Il Duce!!! David Cook!!

Redruth 04-Feb-2005 19:48

Quote:

Originally posted by tp-996
Quote:

Originally posted by chief

What about expanding this competition.........
Who's got the best avatar?........................................... KwickBitch?
Who's the richest?.......................................... ...............Lord Rattler?
Who's the funniest?......................................... ..............Dave W, Dibble?
Who winges the most?............................................. .....?????


avatar - Mogwai
richest - Lord Timothy
funniest - hrmm .. tough one .. have to think about this one
whinging - biting my tongue so hard it's nearly in two!

who is the leader? Il Duce!!! David Cook!!

Mogwai's Avatars don't actually do much for me!

Who is the funniest? That's worth a whole separate prize, but I'll leave that to someone who HAS A SENSE OF HUMOUR to judge! :lol::lol::lol:

I think I'd nominate Loz, Ali, ... Fatduke because he always posts the funnies ...

Definitely a whole new thread in that. Which I am not in a position to sponsor as I just got back from Ally Pally having NOT managed to keep my cash in my wallet. DOH!

Chief's quite funny, actually, I've come to realise. He might as well try the 'funny' thread 'cos he's got no chance on this one. :lol::lol::lol:

[Edited on 4-2-2005 by Redruth]

dave w 04-Feb-2005 20:51

Quote:

Originally posted by monstermob 998

GET A CHEAP ELECTRIC LEAF BLOWER FROM ----ARGOS? WASH BIKE --BLOW WATER OFF -- JOB DONE
works for me


Totally leaving the topic here, but I have found a more amusing use for a leaf blower....

Take one Black and Decker leaf blower, one roll of gaffer tape and one Marigold glove...

Gaffer tape said Marigold glove to the end of said leaf blower.... set to 'blow' ,switch on and watch said Marigold glove expand to approx 10 times its original size before it either explodes or flies of the end off said leaf blower and getting stuck in neighbours tree !!! :lol::lol::lol::lol::lol::lol:

Oh god, I am such an adult 38 year old !!!!:frog:


( and I'll bet one or two of you will try this when the missus has gone out ! )

dave w 04-Feb-2005 20:52

..... Back to topic now !:D

NBs996 04-Feb-2005 22:41

Cool! Now i've GOT to get a leaf blower!!

Wot about if you glue a few ball bearings in the end of the fingers, surely that'll give it much more range? :lol:

ericthered40 04-Feb-2005 23:32

Question (Gearing for these tracks)
Can you tell me the best sprocket sizes to run front and rear for 916/996
Brands Gp and Indi
Snett
Cadwell
Doington
Silverstone

:puzzled::puzzled::puzzled:

dave w 05-Feb-2005 00:33

Brands GP.....14/36
Indi.....14/38
Snett.....14/36 again
Cadwell....14/36
Donin.....15/38
SilverS......15/36 :D:D

dave w 05-Feb-2005 00:37

Quote:

Originally posted by NBs996
Cool! Now i've GOT to get a leaf blower!!

Wot about if you glue a few ball bearings in the end of the fingers, surely that'll give it much more range? :lol:

Best blow job i'v ever had :lol::lol::lol::lol:

ericthered40 05-Feb-2005 00:48

Quote:

Originally posted by dave w
Brands GP.....14/36
Indi.....14/38
Snett.....14/36 again
Cadwell....14/36
Donin.....15/38
SilverS......15/36 :D:D

short and neat and very sweet :cool:


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