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Big Bang Virgin R1

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Deano
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PostPosted: 09:54 - 17 Mar 2005    Post subject: Big Bang Virgin R1 Reply with quote

The virgin R1 team in BSB have been able to create a big bang r1 by playing with the cam timing to great effect that sean emmett was able to knock off 2 seconds a lap.

Knicknamed the PIG, the engine has sacrificed 15bhp to the other conventional tuned bikes but aspires confidents and gives an extremely smooth power curve that the power can be piled on earlier during exiting corners. Rather than having to sit the bike upright then put the power on like the conventional engines as the power curve is too vicious and would slip from underneath you.


Anyone read this in MCN this week? It's really interesting and maybe we'll soon have 2wd drive bigbang yams going round soon as it looks like yamaha are going to release a 2wd kit and cam timing kits I would imagine would soon be easily accessible to the everyday road user through the BSB team.
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Black Knight
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Joined: 22 Feb 2005
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PostPosted: 11:21 - 17 Mar 2005    Post subject: Reply with quote

Hmm yeah, was just reading it.

Very complex stuff, well done to tham if it works.
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cc123
Geez a joab?



Joined: 17 Jan 2005
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PostPosted: 11:28 - 17 Mar 2005    Post subject: Reply with quote

So you lose 15hp but the bigger is quicker round the track?? Confused

Haven't bought MCN this week so I dunno.
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Bendy
Mrs Sensible



Joined: 10 Jun 2002
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PostPosted: 11:32 - 17 Mar 2005    Post subject: Reply with quote

cc123 wrote:
So you lose 15hp but the bigger is quicker round the track?? Confused


Same principle that often sees 600s being quicker round a track than litre bikes... you can actually *use* the power out of corners.
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andrew
Mister Road Rage



Joined: 03 Feb 2002
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PostPosted: 12:04 - 17 Mar 2005    Post subject: Reply with quote

I read that, it looks VERY good. Unfortunately I don't think we'll see it on road bikes for a while. Sad

I read the bit about Ohlins releasing the 2wd system quite soon, sounds like fun. Smile

However the most interesting article in MCN this week has to be the bit about the police challenging the AA's report on the Cat & Fiddle. Thumbs Up
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EuropeanNC30R...
Gay Hairdresser



Joined: 20 Jun 2002
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PostPosted: 12:06 - 17 Mar 2005    Post subject: Reply with quote

I couldn't believe what I was reading in the AA article. One death in three years being a 'mini-massacre' WTF. Evil or Very Mad
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andrew
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PostPosted: 12:10 - 17 Mar 2005    Post subject: Reply with quote

What annoys me is the fact that they use part of the money I give them for breakdown cover to commission these bloody reports. Time to look for a non-biased recovery company me thinks. Very Happy

Lol, did anyone read the comments by Michael Howard? Smile hehe
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Kris
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PostPosted: 12:18 - 17 Mar 2005    Post subject: Reply with quote

Can someone copy and paste the article on here? I'm interested in hearing what this AA report says...
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andrew
Mister Road Rage



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PostPosted: 12:25 - 17 Mar 2005    Post subject: Reply with quote

I'll type it up now.

Give me 5 minutes. Thumbs Up
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andrew
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PostPosted: 12:37 - 17 Mar 2005    Post subject: Reply with quote

Here we go.

Biking hit the headlines last week after the AA suggested there was a ‘mini-massacre’ of riders on Britain’s most dangerous roads.
The phrase attracted dozens of newspaper stories and radio phone-ins, all of which branded riders irresponsible.
But today, MCN can reveal there’s no such thing as a mini-massacre – as the AA’s figures are misleading.
The AA used the phrase because it reckoned there were 20 fatal or serious bike accidents on the A537 Macclesfield to Buxton road, known as the Cat & Fiddle run. But an MCN investigation has revealed that only one person has been killed in that time – and the definition of ‘seriously injured’ is an overnight stay in hospital – so that covers people with relatively minor injuries, like concussion.
The people responsible for the road – Cheshire and Derbyshire police and county councils – gave MCN their reaction.
Cheshire police spokeswoman Jane Gregory told MCN: “We’ve questioned the figures with the AA.
We don’t know where they got them from. And to say there’s a mini-massacre is appalling.”
As well as exaggerating the Cat & Fiddle figures, the AA appears to have got itself confused about the nearby A54. They suggest there were 13 fatal or serious collisions on that road – but Cheshire and Derbyshire police and council tell us there were actually nine.
The AA report’s author, Dr Joanne Hill, said the figures came from the Department for Transport.
So MCN contacted the DfT and a spokesman told us: “We don’t know where the figures came from. We don’t think the AA’s methodology is particularly robust.”
Dr Hill told MCN: “We stand by our statistics. We used the phrase mini-massacre to play devil’s advocate.
“We wanted the media to pick up on it because we wanted to raise awareness of the report.”
They certainly managed that, with one phone-in on radio station Talksport labelling us ‘the scourge of the road.’ Thanks very much, AA.

MCN Forces Changes From The AA
Even the AA’s own website was confused by the report. It put up a story saying 26 bikers had been killed on the Cat & Fiddle.
MCN’s investigation revealed that one person had been killed on the road, not 26. So we asked the AA to correct it. They eventually published the right figures two days after the report came out.
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Kris
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PostPosted: 12:41 - 17 Mar 2005    Post subject: Reply with quote

Laughing Great report then.
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andrew
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PostPosted: 12:44 - 17 Mar 2005    Post subject: Reply with quote

It probably cost them thousands to write aswell. Very Happy
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Kickstart
The Oracle



Joined: 04 Feb 2002
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PostPosted: 13:07 - 17 Mar 2005    Post subject: Re: Big Bang Virgin R1 Reply with quote

Deano wrote:
The virgin R1 team in BSB have been able to create a big bang r1 by playing with the cam timing to great effect that sean emmett was able to knock off 2 seconds a lap.


Think MCN need to spend a bit more time checking their data.

The 2nd and 3rd firing order options they list are impossible without changing the crank. They have screwed up as the time between cylinders 2 and 3 firing will be 360 degrees, with the 180 degree gap being either side of the simultaneous firing of cylinders 1 and 4.

It is a good idea. Suspect it will generate a fair bit more vibration, but it would not surprise me if this is not relevant on a short lived race engine. It will be funny when the first posers try it on the road and wreck the crankcases.

I also suspect that given a fair bit of work on the exhausts they could avoid almost all of the power loss.

All the best

Keith
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