Yamaha R1 'big bang'

[highdeserthater]

@marek0086 V8s and 4 bangers are my favorite engines. They just make such a cool sound! And when they trade crankshafts.....watch out. Lol

[marek0086]

Does anyone else understand why the crank is going faster at TDC and BDC??

[two45triox]

Horseshit. This is gayer than gay on gay sex .

[marek0086]

@two45triox~ are u trying to tell everyone that you're a dumbass?

[two45triox]

@marek0086 Maybe you cannot see the gayness if you are gay.

[marek0086]

@two45triox~ what are u crapping on about??

[suiceyedshift]

Isn't the new BMW 6 a cross plane also?

[kamarulx]

I think the drum player is a kid..

[cujbaion1]

like v8 crankshaft but it s just 4 cilinder in line

[highdeserthater]

@cujbaion1 yup!!! and now whats funny is they are making v8s with the style of crank that a 4 cylinder uses. both designs make higher power and are well balanced. awesome huh.

[marek0086]

@highdeserthater~ ye Ferrari's use a flat plane crank in their V8's. It gives them that unique screaming sound at higher revs. Most V8's use a cross plane crank as it is smoother and produces better low rpm power.

[seapeddler]

Just another advertising ploy.

Oil slicks, ice, gravel, potholes are not remedied with this crank configuration.

Will the R1 now go 1 000 000 mi. like a Mercedes?

I think that a variable firing crank would be more interesting.

Coupled with a Rattler-style vibration damper it would be cool.

But maybe I'm dumb.

[UCMolosser]

@seapeddler @seapeddler I think you were correct in your last sentence. You're right about the first sentence, though. Honda is working on a configuration that eliminates slicks and potholes.

[seapeddler]

@UCMolosser Imagine a hydraulically variable all-fire or multi-fire crankshaft.

If all cylinders fire at once would there be a power/torque advantage?

The valves would be actuated by solenoids with sensors to achieve this.

The EM solenoid valves would be exotic ceramics and would need no oil supply, unlike shim/bucket, rocker arm setups. And no cam chains/gears. etc. It is possible, but I'm not sure if it is technically dumb. Cause I'm dumb.

[UCMolosser]

@seapeddler That would be something. My point was that a crossplane crank is a legit improvement.

[UCMolosser]

@UCMolosser and more so that the pothole/ice comment was ridiculous

[seapeddler]

@UCMolosser I say they should bring back the CBX with a crossplane crank too.

[marek0086]

@seapeddler~ ye that is pretty dumb. U cant have ceramic valves... ceramic is too brittle and they would break in no time.

[seapeddler]

@marek0086 Ok, don't go on a jet, the Cermet turbine blades are unreliable. Unfortunately, ceramics are superior to many current steels. This is why Cermet is used. If a material doesn't accumulate carbon such as a valve, this would be unprofitable. Viktolon is a metal used on the hulls of 1940's era flying saucers. It can withstand the atmospheric drag at 40 000 mph. Yamaha will not remove oil slicks, potholes, roofing nails, etc. It's just that dumb, like me.

[marek0086]

@seapeddler~ Engine valves undergo huge "shock loading". Do u even know what that means?

Ceramics have pretty much NO tensile-strength when compared to metals! They would break as soon as u start the engine!

[seapeddler]

@marek0086 Consider that the temp. at ground zero in Hiroshima was 9 million deg. No, I don't understand 'shock loading'. But when you research the Cerma engine additive, it is stated that Cerma can withstand a 350 000 psi. load without problems.

All metals have a lattice which determines their strength. The ancients had bronze that was as durable as aerospace chromoly. If it weren't for all the stuff found in Sudbury impact crater, we would have little nickel. First metals were brittle too.

[seapeddler]

@marek0086 The space lattice of metals allow forces in many directions. In the future ceramic lattices can be arranged for various vectored loads. Ceramic bearings are quite popular, as they last for 30 yrs. Jesus, who the hell wants to sit on a damn steel toilet, during a lightning storm?

[TbrTurbo]

finalmento ho capito il perche dell'albero a croce e degli scoppi irregolari! grande e semplice spiegazione...un pò difficile sui diagrammi ma si è capito! grazie!

[alexdb83taras]

Benvenuti in un nuovo mondo....YAMAHA R1...always the best!!

[Formulastreet]

Its simple...keep the crank rotating with out interuption during compression. this shit should have been introduce in the 70's and not 2009.

[corotor12345]

AANNNNDDD (sorry to be whinning, i just want everyone to understand)... the thing is, because of the irregularity of compression stroke and the change of direction the piston undergoes at TDC (top dead center) and BDC, the resulting inertial torque is a frequency and not a line. if put into a graph you would clearly see it going up and down depending on crank position... this is why a V8 runs smoother than an inline 4, USUALLY. because they share crank dents, and cancel that momentum

[corotor12345]

oh and these explanations make a terrible mistake... sadly enough, the reason why there is a difference between combustion torque and inertial torque is because, CT is fixed and is a result of a pressure build-up inside the cylinder at TDC during the combustion stroke. IT depends solely on momentum, the faster the axil is spinning, the more kinetic energy that is stored as inertia in the crank... simple.

[corotor12345]

guys, actually, the idiot in the background saying 1,1,1, 3, 4, 1, 2, and scrammbled numbers, does it to make everyone go "WHAAAT???... wow that must be genius", the fact is,, it goes 1>3>2>4 ... there's also other ways to do that, not just that corssplane crank, but it seems to work brilliantly =)

[tej0123]

very informative

[gsadvanced]

Great Video, thanks for posting