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Author Topic: V4 Gran Turismo Multi  (Read 5839 times)
Duck-Stew
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« Reply #15 on: October 21, 2020, 07:58:15 PM »

Doesn't mean I have to like it.

What should I do now?  I mean, now that I’m already off your lawn?  Grin
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ducpainter
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« Reply #16 on: October 22, 2020, 02:10:59 AM »

What should I do now?  I mean, now that I’m already off your lawn?  Grin
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« Reply #17 on: October 22, 2020, 03:16:45 AM »

Is any modern legitimately street legal bike full gear drive?

I think the noise would be problematic to get past the specs.

I thought the VFR 750's, 400's & earlier 800's were expensive, exquisite gear driven cams? You can hear the gear whine which goes well with the V4 growl like a blown V8.

http://www.payneseal.com/images/vfr%20cam%20detail.jpg
« Last Edit: October 22, 2020, 03:34:47 AM by koko64 » Logged

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« Reply #18 on: October 22, 2020, 05:49:28 AM »

You are correct about the VFRs, gear driven until...don' know.  Maybe for homologation?  Gear driven is both noisy and expensive. 
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yamifixer
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« Reply #19 on: October 22, 2020, 08:07:38 AM »

You are correct about the VFRs, gear driven until...don' know.  Maybe for homologation?  Gear driven is both noisy and expensive. 

i ride a M900. Noise and cost were never an issue
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« Reply #20 on: October 22, 2020, 01:13:14 PM »

You are correct about the VFRs, gear driven until...don' know.  Maybe for homologation?  Gear driven is both noisy and expensive. 

They used backlash gears to quiet them down a bit. We removed them for racing. They stopped gear driven cams at the variable timing VFR800 which didnt work too well. I think it was a two valve/four valve thing, not sure but dont care from all reports as Honda got too fancy for their own good. The gear driven 800 was a derivative of the RC45 design and excellent. The last version of the VFR750 was a beauty.

The desmosedici has gear driven cams and sounded great. I met a bloke who had one and it sounded wicked. He said his bike once got impounded and his licence was fragile. Grin
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« Reply #21 on: October 22, 2020, 02:33:38 PM »

The rc 51 was gear drive as well.  The twins sound good with gear drive as well.  The newest ones are 14 years old now, so not super modern.
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« Reply #22 on: October 22, 2020, 02:44:49 PM »

Where did the time go?
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ungeheuer
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« Reply #23 on: October 25, 2020, 02:11:16 PM »

Valve.

Springs?

Well FMD.  I'm sure its a wonderful thing... but how is it in anyway... a Ducati engine?
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stopintime
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« Reply #24 on: October 25, 2020, 03:11:14 PM »

Valve.

Springs?

Well FMD.  I'm sure its a wonderful thing... but how is it in anyway... a Ducati engine?

I believe, by the L configuration more than the desmo.
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Duck-Stew
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« Reply #25 on: October 25, 2020, 06:57:40 PM »

Valve.

Springs?

Well FMD.  I'm sure its a wonderful thing... but how is it in anyway... a Ducati engine?

It’s always been a marketing thing...
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« Reply #26 on: October 27, 2020, 11:04:26 AM »

It's a Honda.
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ducpainter
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« Reply #27 on: October 27, 2020, 01:08:46 PM »

Agreed.
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
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    To realize the value of nine  months:
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"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”


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« Reply #28 on: November 18, 2020, 09:02:34 AM »

Sometimes you wonder if its cost driven, design driven, or marketing driven....
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« Reply #29 on: November 23, 2020, 08:46:08 AM »

Quote
The last version of the VFR750 was a beauty.

Yes, it was.  I beat feet down to the Honda dealer to try to buy one of the last ones... but missed it.  I wound up with a CBR1000F instead.
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