guess they felt this new engine needed the rigidity.
as an aside, they will still sell the twin option with the single sidearm; so people can still get a single sided MS if they wish.
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Ducati V4 Multistrada
- Thread starter bigpoppa
- Start date
as an aside, they will still sell the twin option with the single sidearm; so people can still get a single sided MS if they wish.
Why, fuel efficiency or some other reason? I'm sure someone will fix that with flash if you can't set it already
J_F
Guest
really
last time Italians and Germans worked together
the end result wasn't very good
lets hope this collaboration is more successful
seems like
doubt panigale v4 knows what low revs are.
Should be, doesn't always equal will be. Fuel cut in off-throttle situations is supposed to be invisible as well, but in many bikes isn't.
From friends with gm pick up trucks it causes issues long term in those engines. I cant remember what the problem was, but they disable it whenever they buy a truck. I think it always disabled the same bank, maybe newer ones rotate the bank taking a break.
I scrutinised the parts illustration (and the video that Evoex found) for evidence of any sort of mechanical system to shut off intake and exhaust valves the way it's done in normal automotive practice (e.g. certain GM, FCA, VW, Honda engines) and I don't see it, which leads me to believe the following ...
The drive-by-wire throttle bodies are separately actuated for the front and rear cylinder banks, and it is simply shutting the throttles for the rear bank sufficiently that those cylinders don't fire.
World Superbike and MotoGP have done this (when rules permit) for better driveability on corner exits. It's smoother to take up the load to bring in two cylinders first and then bring in the other two as the rider opens the throttle further.
The new BMW S1000RR has this capability designed in - 4 cylinder engine, two separate throttle actuators, in that case it's for the left two and the right two - although the stock calibration has them operating simultaneously. It's a reflash away from using the progressive-opening strategy.
Video suggests that the Ducati engine is only operating in 2-cylinder mode at idle, supposedly to reduce the amount of heat produced when stuck in traffic.
bigpoppa
Well-known member
I feel like there are other, easier/better ways to reduce heat than to add all this complexity
An extra stepper motor / gearbox and feedback sensor aren't very complicated. A couple more ECU outputs and one more input aren't really an issue nowadays, either.
Besides, the V4 layout means it needs two separate throttle shafts anyhow with some means of connecting them. It's not like an inline-4 with all throttles in line so that they can be actuated together.
Separate stepper motor / gearbox and feedback sensor for each of the two throttle shafts in place of some sort of linkage to connect them is probably peanuts in terms of cost.
The uneven firing order of all of the Ducati V4 engines means that, for emissions reasons, each cylinder needs its own separate fuel mapping anyhow because of the irregular interactions between them in the airbox and the exhaust system. Computers are cheap nowadays.
Only as a 950 apparently.
The 19” front isn’t appealing to me, but doubtful it would actually make much difference as far as my real world riding.
bigpoppa
Well-known member
Good place to start..but like the BMW you'll either spec up or add a few packages and its
J_F
Guest
still don't get it
the L twin 1200 and latest 1260 had plenty of torque and HP
is this just marketing?
the long maintainable intervals and no desmo are pluses however
the L twin 1200 and latest 1260 had plenty of torque and HP
is this just marketing?
the long maintainable intervals and no desmo are pluses however
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