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Motorcycle Forum / General / Sportbikes / December 2004



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Rossi's virtual V4...

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Larry xlax Lovisone - 28 Dec 2004 06:20 GMT
Quote from Jan 05 T.W.O. mag...

"In 2003 the Yamaha M1 secured a single podium, and a right slagging from the
riders who conducted their business on it. They were almost as vociferous as the
previous M1 incumbent Max Biaggi, a rider who at least scored wins in its first
year 2002."

"So what turned last year's pup into this year's lion?"

"Well, you'd be surprised how much of the M1 is basically the same as the 2003
model. The main change is to the engine, with the M1 now going from a
conventional across the frame four to a simulated vee, which means that the
actual crank design has been altered, so that the engine now fires two cylinders
close together, and the others shortly after."

"The big benefit is in traction and engine response, and most of all it makes
the bike feel more similar to the V5 Honda Rossi is used to riding."

"The turn around in the machine is best described by the overall Yamaha Racing
Chief, Masao Furusawa."

"This year the first thing I did was change the engine, to make much better
power delivery to the rear tire. That is what you can call the big bang or
growler engine. I still don;t believe the big bang theory itself, but we changed
the engines! We then increased the horsepower step by step."

"A series of small steps for Yamaha, a giant leap for MotoGp."
End of Article...

My thought??? I think Yamaha is drafting a V4 during the off season... Rossi
deserves the best...

Larry L
94 RC45 #2
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
Yank and bank your brains loose...
http://members.ebay.com/aboutme/-xlax-/
http://home.comcast.net/~netters2/
http://www.fox302.com/index.pl?s=vg&user=netters2


Nicholas Weaver - 28 Dec 2004 16:38 GMT
>My thought??? I think Yamaha is drafting a V4 during the off season... Rossi
>deserves the best...

Why?  The width of the engine is far less of an issue now (it's not
limiting ground clearance), the weight balance is good on the current
M1, and you have the V4 traction behavior which apparently does make a
big difference.

I'd expect Yamaha to stick with the Growler I4, they understand the I4
really well, its doing quite well in the races, and it will establish
a much stronger connection to the next-gen R1 (which I'd almost bet
will be a growler I4).
Signature

Nicholas C. Weaver.  to reply email to "nweaver" at the domain
icsi.berkeley.edu

David Platt - 28 Dec 2004 17:42 GMT
>>My thought??? I think Yamaha is drafting a V4 during the off season... Rossi
>>deserves the best...
[quoted text clipped - 8 lines]
> a much stronger connection to the next-gen R1 (which I'd almost bet
> will be a growler I4).

I agree. They will stay with I4's to advance development of their
consumer machines.
Larry xlax Lovisone - 28 Dec 2004 22:22 GMT
> I agree. They will stay with I4's to advance development of their
> consumer machines.

There's only so much you can do to over come the inherent problems of an I4...
at some point the V4 advantage makes more sense... and you'll be happier for it
too...

Larry L
94 RC45 #2
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
Yank and bank your brains loose...
http://members.ebay.com/aboutme/-xlax-/
http://home.comcast.net/~netters2/
http://www.fox302.com/index.pl?s=vg&user=netters2
mfell2112*NOSPAM*@yahoo.com - 29 Dec 2004 01:11 GMT
>> I agree. They will stay with I4's to advance development of their
>> consumer machines.
>
>There's only so much you can do to over come the inherent problems of an I4...
>at some point the V4 advantage makes more sense... and you'll be happier for it
>too...

OK Larry we have heard enough about V4s.:-)  Everybody knows that V
twins rule. They are narrower than v4s and I4s, require less
maintainance, look cooler, and are lighter.  If you are running more
than 2 cylinders you are just showing off.:-) All this said nobody
makes a better v4 than Honda and Mr.RC45 is a very fine example. I bet
you have her purring like a kitten. Also, I have to agree with Larry
I4s are a joke. They should be outlawed and removed from the face of
the earth.:-)

Regards
Michael H. Fell
Larry xlax Lovisone - 29 Dec 2004 01:14 GMT
> OK Larry we have heard enough about V4s.:-)  Everybody knows that V
> twins rule. They are narrower than v4s and I4s, require less
> maintainance, look cooler, and are lighter.

Face it Mike... V-Twins are dead and buried... relegated to the museums next to
the singles...

I bet
> you have her purring like a kitten.

http://www.fox302.com/userdata/netters2/files/ShopPics/KHDayFifteen11.JPG

Larry L
94 RC45 #2
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
Yank and bank your brains loose...
http://members.ebay.com/aboutme/-xlax-/
http://home.comcast.net/~netters2/
http://www.fox302.com/index.pl?s=vg&user=netters2
mfell2112*NOSPAM*@yahoo.com - 29 Dec 2004 01:37 GMT
>> OK Larry we have heard enough about V4s.:-)  Everybody knows that V
>> twins rule. They are narrower than v4s and I4s, require less
>> maintainance, look cooler, and are lighter.
>
>Face it Mike... V-Twins are dead and buried... relegated to the museums next to
>the singles...

How about this 220 lb single:

<http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=4513901385&ca
tegory=38627&sspagename=WDVW
>

Regards
Michael H. Fell
Saddlebag - 29 Dec 2004 02:41 GMT
>From: "Larry xlax Lovisone"

>Face it Mike... V-Twins are dead and buried... relegated to the museums next
>to
>the singles...

Or to people who actually ride.
As for racebikes, you have a point.
Steve Mackay - 29 Dec 2004 01:27 GMT
On Tue, 28 Dec 2004 19:11:39 -0600, mfell2112*NOSPAM* wrote:

>>> I agree. They will stay with I4's to advance development of their
>>> consumer machines.
[quoted text clipped - 14 lines]
> Regards
> Michael H. Fell

Now you gone and done it. Troy will have a spasm over this post of yours
Mike.
mfell2112*NOSPAM*@yahoo.com - 29 Dec 2004 01:37 GMT
>On Tue, 28 Dec 2004 19:11:39 -0600, mfell2112*NOSPAM* wrote:
>
[quoted text clipped - 19 lines]
>Now you gone and done it. Troy will have a spasm over this post of yours
>Mike.

Yea well it is long over due.:-)
Regards
Michael H. Fell
Troy the Troll - 29 Dec 2004 01:48 GMT
> OK Larry we have heard enough about V4s.:-)  Everybody knows that V
> twins rule. They are narrower than v4s and I4s, require less
> maintainance, look cooler, and are lighter.

Sure they are....as long as it isn't a Hardley engine...in which case they
are heavier, make not much power unless massaged within an inch of their
lives..and then they still get pasted by itty bitty 600cc bikes, and
"looking cooler" is in the eyes of the beholder, and you Mike, appear to be
90% blind.

>  If you are running more
> than 2 cylinders you are just showing off.:-) All this said nobody
> makes a better v4 than Honda and Mr.RC45 is a very fine example. I bet
> you have her purring like a kitten. Also, I have to agree with Larry
> I4s are a joke. They should be outlawed and removed from the face of
> the earth.:-)

I'd let you ride mine Mike, but seeing as how you hav a difficult time with
keeping your bike on the road while chasing scooters down the road, I'll
wait until you get a wee bit more experience with real horsepower and a
decent chassis and good brakes....which is to say when you get a real
bike....
Keith Schiffner - 29 Dec 2004 01:15 GMT
>> I agree. They will stay with I4's to advance development
>> of their
[quoted text clipped - 3 lines]
> problems of an I4... at some point the V4 advantage makes
> more sense... and you'll be happier for it too...

   Why handicap yourself with ONLY 4 cylinders? Get a V-8!
Guzzi proved you could build a workable 500cc V8...in the
50's. Yes it was a bitch to synch the carbs and yes they had
serious issues with waterpumps committing hari-kari.

Signature

Nefarious Necrologist 42nd Degree
Some people ride, some just like to show off their butt
jewelry once in a while.
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Larry xlax Lovisone - 28 Dec 2004 22:02 GMT
> Why?

Jeremy Burgess... Rossi's chief wrench... has gone on record stating that the V4
is by far the best engine configuration for MotoGp... he says that of the V4's
because :
1... inherent broad spread of power...
2... inherent lower internal friction because the V4 has only 3 main bearings
versus 5 main bearings on the I4...
3... inherent smaller crankshaft that offers less rotational mass to influence
handling...
4... inherent small frontal area for decrease drag...

> I'd expect Yamaha to stick with the Growler I4, they understand the I4
> really well, its doing quite well in the races, and it will establish
> a much stronger connection to the next-gen R1 (which I'd almost bet
> will be a growler I4).

You're forgetting the Growler I4 places a lot more stress on engine cases... the
M1 gets by because the engine cases are machined from solid billet aluminum for
about 50K a copy... a prohibit expense for production... so far the only parts
the R1 share with the M1 is paint and plastic...

Larry L
94 RC45 #2
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
Yank and bank your brains loose...
http://members.ebay.com/aboutme/-xlax-/
http://home.comcast.net/~netters2/
http://www.fox302.com/index.pl?s=vg&user=netters2
 
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