What wasn’t the original gen 2 prototype motor called?

cliffclaven · Apr 12, 2020

Otadami? 1900cc/337hp supposedly?

cliffclaven · Apr 12, 2020

What “was” the motor called?

Fire-medic · Apr 12, 2020

You better post-up whatever internet rumor websites you found that on!

256 cu. in outboard motor @ 250 HP is all I found, but not under that name.

At your specs, that's 2.9 hp/cubic inch, which is far-more than any street bike currently offers.

https://yamahaoutboards.com/en-us/home/outboards/v-max-sho/v6-4-2l

Itgoes · Apr 12, 2020

https://www.vmaxforum.net/threads/new-max-295-hp-info-rumor-thread.2072/

9SecVmax · Apr 21, 2020

Not a rumor. First engine was way too powerful. First built was called Frankenmax. Was displayed at a few shows. Engine was too big for the frame. It was scrapped. Now, I think this is the same motor called the "Otadama". I'm trying to find the info. I remember it was made around 1999. But I do remember something stupid at 300HP because it was 2400cc's. I'm confident that my memory still serves me. It was put in a massive frame. They kept snapping drive shafts. Then the lead engineer (Nakaaki) began development of a new engine predicated on a base 1600cc. After further testing, it was punched out to 1679. Then they added YCCI to get the surging feeling during acceleration like Vboost.

Itgoes · Apr 21, 2020

I never said it was a rumor. Most of what you're saying is correct.

There was an engine that was scrapped - it made to much power and it couldn't be packaged small enough to be practical in a proper street bike frame. It was displayed at the 1999 Tokyo motorcycle show.

The new engine was smaller and the made a little bigger....

I also know that the current engine was supposed to have variable valve timing but that was scrapped late in development.