Masao Furusawa, chief of Yamaha’s MotoGP program in an article in the latest issue of Moto Tech has this to say about V4 engines……
Where Yamaha was unique in the MotoGP field with its pneumatic valves, Honda has entered the championship this year with its own developments, but Furusawa is not particularly worried.
“I guess Honda is chasing our advantage which means the good cornering,” he says. “Even though it has good engine technology, has a long history and has always released good engines since the 1960’s, what it’s really after is getting good agility in the corners. That means very much more compact bikes but the problem is that its V engines require greater space. It means that only a small compound head is available and so it is difficult to get a comfortable pneumatic valve system – but that is my guess.”
“With an inline four we have far more room which nevertheless is still limited because we want to design the chassis as small as possible but we do have an advantage in the head area of the engine.”
__________________
Only one left not in captivity.
Yeah right... what does he know? I mean, his team only won three of the last five MotoGP championships (and came within a whisker of winning a fourth).... sorry, I put my stock in our forum expert on these matters... Larry? Here is your chance to set the record straight.
"Exercise restraint and discipline, only responding to posts from legit customers and those with constructive positive intent, you will find that the handgrenades explode harmlessly. You have many satisfied customers who are happy to have the parts you've made. My suggestion to you is keep making good parts, keep getting more customers, take care of them and let them speak for you."
Mark!
what about the V max and the old 2 stroke gp bikes!
I believe the inline is the best design for modern racing bikes
better for weight distribution,engine weight and simplicity(1 head unit instead of 2)and with Yamahas crank and firing interval changes now has the stuff to compete in all areas with the old fashioned V4 design
Just look at the advances Yamaha has made in 3 or 4 years
this will continue
But Honda/ducati/suzuki havent really progressed that much
Mercy fellas, dont you know larry doesnt like threads started about V4s.
He likes to jump into totally non-related threads and extoll the magic virtues of V4s, explaining how they naturally avoid whatever issue is being discussed, even if it happens to be lawn maintenance.
Seriously....Larry, do you name everything you own like your bike? Mr Refrigerator, Mr Shop, Mr Lathe, etc?
Mark!
what about the V max and the old 2 stroke gp bikes!
I believe the inline is the best design for modern racing bikes
better for weight distribution,engine weight and simplicity(1 head unit instead of 2)and with Yamahas crank and firing interval changes now has the stuff to compete in all areas with the old fashioned V4 design
Just look at the advances Yamaha has made in 3 or 4 years
this will continue
But Honda/ducati/suzuki havent really progressed that much
no, Yamaha is making Honda look like fools and i commend Yamaha for signing rossi and taking their racing seiously, look at WSBK too the last few years. Honda and HRC have done little or nothing to impress including the 08 CBR and their leaving TK to race WSBK is embarrasing to be honest and this ploundering in GPs is crazy, good think we have another repsol stickered CBR1000rr for 2009
"Exercise restraint and discipline, only responding to posts from legit customers and those with constructive positive intent, you will find that the handgrenades explode harmlessly. You have many satisfied customers who are happy to have the parts you've made. My suggestion to you is keep making good parts, keep getting more customers, take care of them and let them speak for you."
Masao Furusawa, chief of Yamaha’s MotoGP program in an article in the latest issue of Moto Tech has this to say about V4 engines……
Where Yamaha was unique in the MotoGP field with its pneumatic valves, Honda has entered the championship this year with its own developments, but Furusawa is not particularly worried.
“I guess Honda is chasing our advantage which means the good cornering,” he says. “Even though it has good engine technology, has a long history and has always released good engines since the 1960’s, what it’s really after is getting good agility in the corners. That means very much more compact bikes but the problem is that its V engines require greater space. It means that only a small compound head is available and so it is difficult to get a comfortable pneumatic valve system – but that is my guess.”
“With an inline four we have far more room which nevertheless is still limited because we want to design the chassis as small as possible but we do have an advantage in the head area of the engine.”
Mercy fellas, dont you know larry doesnt like threads started about V4s.
He likes to jump into totally non-related threads and extoll the magic virtues of V4s, explaining how they naturally avoid whatever issue is being discussed, even if it happens to be lawn maintenance.
Seriously....Larry, do you name everything you own like your bike? Mr Refrigerator, Mr Shop, Mr Lathe, etc?
__________________
2006 BMW HP2
2011 Husqvarna TE630
Sour grapes are a lesser man's fruit.
Quote:
Originally Posted by Busy Little Shop The [fact] that the RC45 was a "relative failure" is what matters most...
Masao Furusawa, chief of Yamaha’s MotoGP program in an article in the latest issue of Moto Tech has this to say about V4 engines……
Where Yamaha was unique in the MotoGP field with its pneumatic valves, Honda has entered the championship this year with its own developments, but Furusawa is not particularly worried.
“I guess Honda is chasing our advantage which means the good cornering,” he says. “Even though it has good engine technology, has a long history and has always released good engines since the 1960’s, what it’s really after is getting good agility in the corners. That means very much more compact bikes but the problem is that its V engines require greater space. It means that only a small compound head is available and so it is difficult to get a comfortable pneumatic valve system – but that is my guess.”
“With an inline four we have far more room which nevertheless is still limited because we want to design the chassis as small as possible but we do have an advantage in the head area of the engine.”
Highlighting the grisly bits for posterity. My favourite part. - but that is my guess. LOL like he doesn't know he's the dragon-slayer. Does anyone smell anything burning in Cali-4-nye-a
__________________
2006 BMW HP2
2011 Husqvarna TE630
Sour grapes are a lesser man's fruit.
Quote:
Originally Posted by Busy Little Shop The [fact] that the RC45 was a "relative failure" is what matters most...
Where Yamaha was unique in the MotoGP field with its pneumatic valves, Honda has entered the championship this year with its own developments, but Furusawa is not particularly worried.
“I guess Honda is chasing our advantage which means the good cornering,” he says. “Even though it has good engine technology, has a long history and has always released good engines since the 1960’s, what it’s really after is getting good agility in the corners. That means very much more compact bikes but the problem is that its V engines require greater space. It means that only a small compound head is available and so it is difficult to get a comfortable pneumatic valve system – but that is my guess.”
“With an inline four we have far more room which nevertheless is still limited because we want to design the chassis as small as possible but we do have an advantage in the head area of the engine.”
This continuous blathering about the inherent superiority of one engine config over another is just silly . The rider is still the MAJOR factor in the racing equation -- 75% of it I would say . Inline or V , they both have advantages and disadvantages , and an engineer needs to adjust the design parameters of the whole bike to maximize the former while minimizing the latter . Honda just hasn't been able to do this , to construct a package that works . Afterall , Stoner didn't have much trouble winning the last GP on his lowly , ill-handling V-4 . Put Rossi , Stoner , Lorentho , and even Pedrosa on sh!t and they will do well . What I would give to see Rossi ride the Kawwy in one GP ?!!
Masao Furusawa on V engines
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