Honda Power Unit Hardware & Software

[gruntguru]

There is no benefit at the rpm where the variable trumpet is set to the same length as the previous (fixed length) trumpet. (There may be a miniscule benefit if the fixed trumpet engine included some design compromises to make it less peaky.)

At RPM either side of this, the cylinder filling will be slightly better with the variable system (benefit increases as rpm departs further). This will allow a reduction in MAP and therefore less compressor power requirement, leaving more energy available to the MGUH.

So - raw crankshaft power does not increase but the H and therefore the K will see a power increase.

[PlatinumZealot]

It seems as if the trumpets are continuously moving at different loads and speeds.

[FW17]

Ted was saying on Sky that McLaren Honda are already running the HCCI mode.

[Thunder]

Ted was saying on Sky that McLaren Honda are already running the HCCI mode.

Michael Schmidt from AMuS says Honda doesn't have a Date for the Introduction yet... Journos in the Dark^^

[ringo]

That japanese way of covering the interesting parts :/


At 37:23 there are some interesting power figures. Deriving horse power form torque produces some very high numbers.

from that engine speed and torque, that engine is producing 665 Hp to the flywheel.

That may put Mercedes in the 725hp range if a 60Hp deficit is to be believed, which actually sounds quite realistic.

[FW17]

I remember this last year they were around 428 nm torque

This year the figures are between 450 and 475 nm @ 11500 rpm

This would be a range of 732 to 773 HP

But I think this figure is a self sustaining mode and not pure IC


Can anyone explain why the torque shoots up to 525 nm during one of the shifting phases?

[PhillipM]

Engine inertia on the upshift.

[FW17]

That would cause the rpm to spike but why the torque

[PhillipM]

RPM's wouldn't spike, it's the opposite - because the load from the next gear is drawing the rpms down - ergo extracting the energy from the crank/pistons/rods, etc

[hurril]

I remember this last year they were around 428 nm torque

This year the figures are between 450 and 475 nm @ 11500 rpm

This would be a range of 732 to 773 HP

But I think this figure is a self sustaining mode and not pure IC


Can anyone explain why the torque shoots up to 525 nm during one of the shifting phases?

Quite the difference between yours and ringos numbers. How come?

[Sasha]

Honda ICE horsepower is very close to that guy who posted the number 665,another 8-10 hp more and you would be right on the money.

[GoranF1]

Honda ICE horsepower is very close to that guy who posted the number 665,another 8-10 hp more and you would be right on the money.

and how does that compare to Mercedes ICE?

[FW17]

I remember this last year they were around 428 nm torque

This year the figures are between 450 and 475 nm @ 11500 rpm

This would be a range of 732 to 773 HP

But I think this figure is a self sustaining mode and not pure IC


Can anyone explain why the torque shoots up to 525 nm during one of the shifting phases?

Quite the difference between yours and ringos numbers. How come?

No idea

I have put the input numbers considered

Let us understand ringos too

[asinghkakar]

I was at the mercedes museum in stuttgart yesterday. They have lewis's 2014 car there. The description accompanying the car states that the 2014 ICE produces 740 ps!!! with aditional 163ps from the batteries!!!!

That japanese way of covering the interesting parts :/


At 37:23 there are some interesting power figures. Deriving horse power form torque produces some very high numbers.

from that engine speed and torque, that engine is producing 665 Hp to the flywheel.

That may put Mercedes in the 725hp range if a 60Hp deficit is to be believed, which actually sounds quite realistic.

[PlatinumZealot]

That japanese way of covering the interesting parts :/


At 37:23 there are some interesting power figures. Deriving horse power form torque produces some very high numbers.

from that engine speed and torque, that engine is producing 665 Hp to the flywheel.

That may put Mercedes in the 725hp range if a 60Hp deficit is to be believed, which actually sounds quite realistic.

Nope I get around 740hp. There is another clip at 468Nm and close to 11,000rpm.