Attack performance crt dyno run.Turn it up!

[bstnsboy]

This is going to compete in moto-gp this year. great sound from an inline 4...Interested to see how it does.http://hellforleathermagazine.com/20...-hit-the-dyno/

[CBR929RE]

awesome

[Evadd]

Sounds and looks so cool...

[carsick]

A good visual on how the rear suspension reacts when power is applied, even if it is three times my applied power! Nice job if you can get it!

[Dip Dungles]

That thing sounds beastly.

[Kurlon]

Seeing as it's not vibrating itself to pieces, and the engine don't show any signs of being modded to accept a counterbalancer, plus the comment that it works like a tripple... am I right in thinking he twingled either the inner or outer pair of cylinders and left the firing order of the others alone? So the crank itself is the same, it's a custom cam and redone injector timing to make the magic happen?

[CBR929RE]

I would think they would have needed to make another crank unless 2 of the cylinders happened to be at or very close to TDC at the same time. and of course new cams and timing everything else to match.

[Kurlon]

I would think they would have needed to make another crank unless 2 of the cylinders happened to be at or very close to TDC at the same time. and of course new cams and timing everything else to match.

I thought standard inline 4 was inner two go up and down together, outer two go up and down together? Hence you get one bang per 180 degrees? Did they change that on me (other than the R1) in recent years?

[CBR929RE]

I thought standard inline 4 was inner two go up and down together, outer two go up and down together? Hence you get one bang per 180 degrees? Did they change that on me (other than the R1) in recent years?

I actually have no idea. but if they do then yeah I can see it being pretty easy for them to change the firing order

[csmutty]

I thought standard inline 4 was inner two go up and down together, outer two go up and down together? Hence you get one bang per 180 degrees? Did they change that on me (other than the R1) in recent years?

And the inner 2 fire 260 degrees apart from each other as do the outer 2 correct?

[Kurlon]

And the inner 2 fire 360 degrees apart from each other as do the outer 2 correct?

Aye.

[stoinkythepig]

The odd-fire engine has a 90 degree crank, so it would not fire at even intervals, just like the R1.

[Kurlon]

The odd-fire engine has a 90 degree crank, so it would not fire at even intervals, just like the R1.

Actually, reading the article confirms right now it's a flat 180 degree crank like a normal GIXXAH! He's going to experiment with a 90 degree crank later on, but I'll wager he's going to need custom cases to do it.