Yamaha Crossplane Crankshaft Part 1

[pman780]

looks alot like a rotax 122 crank

[SparkDischarge]

Why didn't they just use a 5 cylinder?

[1337ASM]

@SparkDischarge why not go rotary ? =]

[SparkDischarge]

@1337ASM They don't rev as high.

The problem is there is only 1 stationary gear. Rotary engines could rev higher with 2, but that would complicate the construction.

750cc 5 cylinder 150hp (67mm bore X 42.5mm stroke X 5 cylinders :)

1500cc 3 cylinder 300hp (110mm bore X 52.5mm stroke X 3 cylinder) Perfect insanity.

[CadetLD]

For as big and mean the CPC makes a small, 1.0L, inline-four sound, why not use that technology on say a 2.0L for a sports car or somehting? I know theyve designed automotive engines in the past. It would definatly turn some heads when they hear the exhaust.

[SparkDischarge]

@CadetLD Because they do not rev as high as motorcycles do.

Because they can add more cylinders.

[duckgeezer]

I have an 08 R1; I prefer the sound of that to the CPC version.

[SovietSlayer]

i want a yamahar too 

[Gisae]

6:12 "You actually got an inline four that thinks it's a v-four"

Having a v-four myself I can say; That's pretty awesome!

(RC36II / VFR750)

[acidangelster]

Brilliant piece of technology.But I miss the old sound though.I have one question though...how come all the other inline 4 ,manufacturers have not gone down this route yet? For example the zx10 r 2011 will still have the good old inline 4 sound.Which means same old engine technology.

[livewoutlimit]

how much does Specialized pay Ben to wear that hat?

[powersliding]

seems that it is the counter balancer that disturbs grip when the con-rods position itself for easy crank movement

[zzboobzz]

Neil Spaulding rocks, the Moto tech geek.

[uclujvg]

YAMAHA rulles!

[marek0086]

let me tell u that this tech "guru" did an ATROCIOUS job at explaining the benefits of the cross plane crank.

I know how it works..... but this guy is just a shockingly bad teacher.

[myR12006]

WHATEVER!!! R1 2004-2008 RULEZZ

[Ranger0n20s]

wonder if this could be used on diesel engines....

[SparkDischarge]

@Ranger0n20s No. There is a reason MB used 5 cylinder diesels.

There is never more than 1 piston/connecting rod assembly stopped at any one time.

[musiclovr2]

you just took the exitement out of riding a r1

if its pushing against the other pistons,and rods, its putting a lot more stree on the crank as well

[musiclovr2]

stress sorry

[michael9515]

the most simple solutions turn to be the best :P my father had old R1 and now the new R1... i driven both of them and even i can fel continuous flow of power...

[rheaMDC21]

THE BEAST!

[villevalo822007]

R1 love forever!

[evaant14]

love the r1