mzso wrote: ↑16 Mar 2026, 11:15
diffuser wrote: ↑16 Mar 2026, 02:01
mzso wrote: ↑16 Mar 2026, 00:53
Why wouldn't they upgrade the engine? It's what they need to do.
They could and I don't know if things have changed since but going in Australia Honda was saying the problem isn't with the homologated parts.
Do you have a reference for that? Because I didn't hear this.
ElliotDelgado wrote: ↑15 Mar 2026, 23:42
I do not think the updates are going to be only engine parts, i do believe they are going to change the engine bay sorrounding materials to change their flexing characteristics, apart from that i'm not sure what can be done there.
I would like to think honda has balanced the crank and camshafts as best they could, and it would be a massive miskate not to take than into account, what does that leave us? firing order? diffent or greater piston speeds? i remember the Yamaha MotoGP engine to have a different firing order.
Well, if they can't fully solve it in the engine, they'll need to find something to damp vibrations
If they change the firing order they also to redesign the camshaft and maybe crankshaft, don't they?
I wouldn't be absolutely certain that they didn't make a mistake in balancing the engine. Knowing Porsche could make a similar mistake, around decade ago.
There's not a single "correct" answer in solution to balancing an engine, and draws different views from those responsible as to the most effective.
There's primary, secondary and tertiary vibrations, all competing in positive and negative effect against each other. Its a very involved topic.
Often it will play into where the vibration can be accepted more (little used rpm range) to enhance resolution in a more important phase of power production. They'll never really come up with a conclusive, all encompassing answer.
The traditional (in less performance orientated, and weight conscious designs) make use of balance shaft, harmonic crank balance pulley, dual mass flywheel and torsionsal plasticity in clutch driven plate to cope with things like this in countering vibration. That's really not the scope of a pure performance engine though, just reduction as best possible within that performance and weight constraint, with those methods not usually present in race PU. They are brutally crude in this aspect, and far less resolved than engine people generally have access to.