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| Alex-Cossie |
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Alex-Cossie
L Plate Warrior
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| DrSnoosnoo |
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DrSnoosnoo
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| Boxing |
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Boxing
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| Matt- |
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Matt-
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| _Iain_ |
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_Iain_
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 Posted: 15:52 - 25 Jul 2012  Post subject: |
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Either you've jetted it wrong, you've got an air leak somewhere, you forgot to take the restrictor out of the variator, or as above you put racing rollers in because you/daddy has more money than sense and decided to buy every "upgrade" in the catalouge without researching what the individual parts actually DO or how they do it.
90% of the ped related stuff i see on here comes down to "mi mate jon boi dere sez put dat bit in coz it goes lyk 100mph if u do" however said mate got the information 3rd hand and neglected to go into the fact that they changed the gaskets and spent hours doing plug chops to get it right!! One kid came on here saying that his bike was flooding with a 130 main so he fitted a 160 main to sort it out!!
Standard rollers if you fucked about with em, if not look for a washer between the variator cones that would stop it closing all the way up & report back. 
____________________
Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II, Baotian BT49QT-20 Driving: '88 Volvo 340 |
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| Alex-Cossie |
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Alex-Cossie
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| Im-a-Ridah |
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Im-a-Ridah
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| billybaggins |
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billybaggins
Renault 5 Driver
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| _Iain_ |
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_Iain_
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| tahrey |
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tahrey
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| Posted: 16:54 - 27 Jul 2012 Post subject: |
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| billybaggins |
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billybaggins
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| Posted: 14:21 - 30 Jul 2012 Post subject: |
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[quote="tahrey"][quote="billybaggins"]My aerox did (indicated) 60 on the flat and would go off the clock down big steep hills, derestricted, powerpipe and rollers. This is going back 13 odd years maybe mopeds have changed. My friend at the time got an aerox "facelifted" and derestricted it and could only touch 50 and just over 55 down the hill, mine left it for dead.[/quote]
obligatory trolling  -
I believe I last saw this sort of discussion on [i]James May's Top Toys[/i], where the myth was busted, and the day I believe it is the day my completely unmodified (65-ish mph) CG doesn't smoke a pedboi like their engine's turned off. So you tuned what was originally a cheap runabout of an engine to give 200 HP/litre?
(Yeah alright, perhaps it's true, but citation and/or video proof required  )[/quote]
Dont think i need to prove anything mate, hence the words indicated before my speed. I had a 1993 cg years ago and ive been on many a scooter that would have left it no harm to you. To think someone could make up the fact that a scooter in the 90's could do 60 mph must mean your the kind of sad young individual who makes up similar stories to even think of that. If i was lying i dont see how that would make me cool or a hero, clearly you maybe have little experience of riding differnt machines to know you can have 2 exact bikes that do different speeds out of the box. You probably also make up ghost stories and still feed from your mothers breast. So save yourself the want of a man going through the bother to attatch some sort or video device to their £400 scooter to prove to somebody they dont know that their learner legal hair dryer can do a certain speed, get a grip. Plus when i had my early cg i was clocked down a local hill with a car behind me indicating 70mph by the cars speedo and mine with my head tucked into my lap. Unfortunatley i didnt go through the bother of repeating this by getting my video camera out as i know it was a horribly slow bike that struggled to keep 55/60 on the flat.
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| billybaggins |
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billybaggins
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| _Iain_ |
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_Iain_
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| tahrey |
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tahrey
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| The Shaggy D.A. |
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The Shaggy D.A.
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| Posted: 17:26 - 15 Aug 2012 Post subject: |
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I'm still waiting for the 100mph CZ125.
____________________
Chances are quite high you are not in my Monkeysphere, and I don't care about you. Don't take it personally.
Currently : Royal Enfield 350 Meteor
Previously : CB100N > CB250RS > XJ900F > GT550 > GPZ750R/1000RX > AJS M16 > R100RT > Bullet 500 > CB500 > LS650P > Bullet Electra X & YBR125 > Bullet 350 "Superstar" & YBR125 Custom > Royal Enfield Classic 500 Despatch Limited Edition (28 of 200) & CB Two-Fifty Nighthawk > ER5 |
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| tahrey |
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tahrey
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| Posted: 17:47 - 15 Aug 2012 Post subject: |
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| billybaggins wrote: | Dont think i need to prove anything mate, hence the words indicated before my speed. |
Well, fair enough, but the speed claims do still seem to be being used as proof of something or other, just with that as a get-out clause if someone comes to call bullshit on it. If the speedo is THAT inaccurate, what's the point of having it? Did you ever maybe have someone clock you between two points with a stopwatch or anything to see what speed you could actually manage?
Hell, was the speedo even in MPH not kilometres?
| Quote: | I had a 1993 cg years ago and ive been on many a scooter that would have left it no harm to you. |
Fair enough again, but to use your own rhetoric, what scooter was it (if not the Aerox), was it originally - and still, after the tuning - a 50 (not kitted out to 70 or 80 etc), and was the CG in a decent state of tune itself? Mine's in good tune (recent horrible knocking noises excepted), probably making more than the official stock output, and although the speedo is indeed not that accurate I've gone to the bother of GPS measuring it (you get trackers integrated into all kinds of things these days... mine was a fairly old Nokia mobile) and it's within about 5% near the top end. About as much as a car speedo. So when it says 65-70, I'm actually doing 62-66½, which I'm none too upset about. Had an "indicated" 75 out of it on the flat (probably with tailwind), and a couple times nudged the limiter downhill at 83-84 or so on the dial - which when you do the maths of supposed limiter rpm vs the gear ratio and tyre diameter comes out pretty much dead-on. I'll leave you to work out the real world speeds for those. With taller gearing, it could (have) go(ne) a few miles faster, given that it's coming off peak power by the time the clock is into the 70s, and it was still accelerating a little when it hit the limiter on that hill. Not, like, 80 on the flat or anything, but it might well('ve) nudge(d) a genuine 70 without the help of tailwinds etc.
And if you wish to accuse me of making stuff up, I've probably got the GPS track file somewhere still.
I don't mean to claim that I have the fastest bike in the world, or even the fastest 125, that's patent BS. Nor that it would be entirely impossible to make a 50 go that fast; there are 50cc pro race bikes which can push past 70mph are there not? But they have thousands of pounds sunk into them and get rebuilt every few hundred miles. A popular mod for very small capacity bikes is a kit to increase the capacity by 40, 50, 60% or more after all...
I just feel skeptical about your very nearly matching my power affordably with that same capacity. But, without being so sure in my assumption that I was above openly inviting me to prove me wrong.
Come on. You don't need expensive tools to do it. You can get a velcro strappy thing with a tripod screw on it for about a tenner, and simple digital cameras are dirt cheap these days - like, 30-40 quid even if you pay full retail price. Or an old mobile phone and a bit of duct tape. Or any old camera held by a bystander and two chalk lines drawn across the road marking a proven 50m distance, which you ride between full-bore after having a run-up to the first - the viewer can work the time out easily enough from the video itself.
| Quote: | To think someone could make up the fact that a scooter in the 90's could do 60 mph must mean your the kind of sad young individual who makes up similar stories to even think of that. |
I don't believe your tall tale... ergo that means *I'm* full of it and lie all the time? Stunning, Sherlock-Holmes-beating reasoning there mate. Yep. I admit it. The only way I could ever be a truthful soul is by believing what you said.
Please. Back off the gas a bit.
Oh, and "young" now? You flatter me. I was born in '81. I am clinging frantically to the last tatters of my youth as a man might the splintered timbers of his boat in a perfect storm.
| Quote: | If i was lying i dont see how that would make me cool or a hero, |
This is the point at which I re-read my original post to find the point at which I made such an accusation.
...nope, can't see it. Are you letting your insecurities get the better of you? Please, retort to and critise me for only the things I *have* said or intimated.
| Quote: | clearly you maybe have little experience of riding differnt machines to know you can have 2 exact bikes that do different speeds out of the box. |
I know that one well enough already. I would ask you to keep your baseless accusations to yourself.
No, I haven't ridden that many different bikes, but I have ridden a few. And driven enough different cars to know that it holds for any old internal combustion engine regardless of what machine it's mounted in.
However, those differences are more in the region of +/- 10%, not 100% or more.
| Quote: | You probably also make up ghost stories and still feed from your mothers breast. |
Now, that is entirely unneccessary. I would ask for you to retract that.
| Quote: | So save yourself the want of a man going through the bother to attatch some sort or video device to their £400 scooter to prove to somebody they dont know that their learner legal hair dryer can do a certain speed, get a grip. |
You know, instead of all this, a youtube video - not even necessarily your own - of someone showing a genuine fiddy doing a genuine 60+mph would have been perfectly acceptable. I wasn't asking you outright to go find that old machine - that was probably melted down to make beer cans 10+ years ago - and take it out for a spin with a GoPro on your helmet and a pair of laser speed traps set up.
Really, you're overreacting. You'd think I'd been looking at your bird or something.
| Quote: | Plus when i had my early cg i was clocked down a local hill with a car behind me indicating 70mph by the cars speedo and mine with my head tucked into my lap. |
Your point being?
| Quote: | Unfortunatley i didnt go through the bother of repeating this by getting my video camera out as i know it was a horribly slow bike that struggled to keep 55/60 on the flat. |
And yes, that one may well have been. But it doesn't mean mine is. As we know, engines are variable, as is aero (if you retrofit an Innova to a recumbent bicycle shell, it'll do 90mph and 200mpg, apparently), and the early 90s CG engine was even more limp wristed than the early 2000s one. But in that case, if its performance was in the 60ish range, and so was the scoot ("60 on the flat, off the clock down big steep hills" - whatever the clock read to...), did you ever have them face off in a drag race and find which was ultimately the quickest?
And really, more so even than asking for actual evidence, my point comes out to much the same as what yours is here - unless you have some way of backing it up, outlandish stories of what speeds your vehicle will do are no more than pub fodder and should be taken with a bucket of salt. No need for the personal attacks. I've had enough tales fed to me by superbike mad co-workers of "their" Hyabusa (never seen on-site) nudging 200mph down the road across the top of the local reservoir (dead straight but only about a mile long) before they had to haul on the brakes etc... yeah yeah. And I banged Pippa Middleton last night... I think that makes me the winner. Whose round is it?
I will probably be shown to be utterly, totally wrong and a horrendous doubting Thomas, but I very much remain to be convinced of the veracity of such things
50mph, well, sure... that seems about attainable... It's just that last 10mph needs quite a bit more power on top.
And the last smoky mosquito-buzzing 50 I was sat next to at the lights made an awful lot of noise, but didn't even seem to have a chance of nosing in front whilst I shifted up at what was pretty much the lowest rpms my engine would allow (I could have thrashed away, but I was on the left and they were to the right and I figured I'd give them a fair chance to get ahead). I know it was probably restricted and all, but I had an awful lot of revs to spare and an awful lot of twist left in the throttle... |
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| tahrey |
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tahrey
World Chat Champion
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| Posted: 18:35 - 15 Aug 2012 Post subject: |
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Basically, this
Can we have Stinkwheel tell us the odds on which way this one might swing?
I'm open to being proved wrong, but we'll have to see the drag video, trap receipt and a scrutineer's report in cases like these.
(And now I'm trying to remember how far I am away from Santa Pod in case I get my bearings fixed!)
Let's see, in that thread, a well-made 250cc 2T could do in the region of 110-120mph. Assuming for the sake of argument that bike aero works similarly to that of cars (pretty sure it doesn't, but meh) in terms of proportional HP needed for proportional speed, and also assuming similar HP per litre...
Previous 120mph car had 106hp (1.6L 16v petrol)
Current not-quite 110mph car has 80hp (1.5L diesel)
Previous 100-105mph car had 70hp (1.6L 8v petrol)
Previous 90mph car had 45-50ish hp... (1.1L petrol)
106 + 80 / 2 = 93hp for about 115mph
250/93 = about a 2.7 bike cc:car hp relationship.
45-50 x 2.7 = a similarly well-tuned 125 could *maybe* kiss 90mph
100 / 2.7 = 37hp equivalent. Or about 80mph.
50 / 2.7 = 18.5hp equivalent. Or about 57-58mph.
So if the scooter was done up in the same fashion as the exceptionally well made, well tuned, race spec 250cc Stinky mentioned, and my maths hold any kind of water, then yes... 60 - on the clock, absolutely flat out, in still air, on a flat road, with a mile-plus run-up. All's good and fair.
(The 2t Aprilia 125s are good for 80-90 allegedly aren't they?)
If. |
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Old Thread Alert!
The last post was made 13 years, 132 days ago. Instead of replying here, would creating a new thread be more useful? |
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