2020 Honda Fireblade | CBR1000RRRRRR

You can tell by tensioner which way they spin. Bottom gear is double with inner ones pinned by crank gear.

 

Too big to be supply. Just drain for top end.

 

So 215hp is w/o variable valve tech? Looks like they made it more oversquare too, so it'll be interesting to see if it's just a screamer and a total dog in the midrange.

 

The second gear drives the balancer, which appears to have been moved beneath the crank

 

The duration on those cams is impressive. Obscene even.

Short lift/long duration = High RPM power. Some sacrifice on the low end.

 

If it was a drain, it wouldn't have a seal on the end of the crank

 

Maybe it is there as part of galley, to direct oil straight down in to pan. There is another one on other side as well.

 

Isn't that crank itself, not balancer?

 

Help me understand why Honda would employ a jackshaft (that's what it would need to reverse direction) because it wanted to rotate the cams in the opposite direction of crank rotation? Just the jackshaft itself will penalize the design several percent right off the top. Doesn't make alot of sense, does it? Help me understand.

 

I have no clue why honda does anything. I am just looking at picture. If you look where cam gear is it looks too close to cylinder surface so crank would be under it. Compare it to other side for distance.

 

Honda names it "semi-cam gear train".
I suppose shorter cam chain - > "safer" at peak rpm (less slack) , 14.500 in stock trim.

We'll have to wait for a technical article.

 

This, too, but looking at the position of the cam chain tensioner should leave no doubt.
¯\_(ツ)_/¯

 

Looks like it gained some weight. The cams look serious, that's the advantage of the finger followers.

 

Looks like the cams could be geared together by the circular thing located between them. Top end safety feature?

 

Now that we sorted the rotation direction, we move on to cam chain length

How can it possibly be longer since it's driven by a gear that sits above the cranckshaft? It doesn't make sense.

 

Yep, you are right! AND, the cams spin in reverse! But tell me why?
Why is there oil pressure being fed to that gear? I think I know, but really shouldn't say.

 

Then don't, I couldn't care less

 

Or variable cam timing

 

Taller head

 

He showed up about 70 seconds after Marquez got there.