WRC Testing

[er88]

Tänak with Hybrid Hyundai https://www.youtube.com/watch?v=bzqNXNkxgmQ

Love the sound of that!!

[EstWRC]

https://youtu.be/r0qUmnG0k-M

[mknight]

https://youtu.be/r0qUmnG0k-M

Weird the sound is so different when it's supposed to be "same" engine. (did the ALS change?)

Certainly doesn't look "slower than R5 car" in the last corner as the Finnish journalist claimed it to be.

[doubled1978]

Do the new cars run to the same minimum weight as the current cars? Or have they increased it to allow for the hybrid?

[jiipee64]

Toyota testing Rally1 Yaris in Finland.
Juho Hänninen driving...

https://twitter.com/juha_kantanen/st...269604352?s=19

[TyPat107]

Weird the sound is so different when it's supposed to be "same" engine. (did the ALS change?)

Certainly doesn't look "slower than R5 car" in the last corner as the Finnish journalist claimed it to be.

I think I remember reading getting rid of the fresh air ALS is in the rules for the new cars.


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[Mirek]

I think I remember reading getting rid of the fresh air ALS is in the rules for the new cars.

And that is perfectly logical. Having an ALS in a hybrid car would be ridiculous.

[AnttiL]

And that is perfectly logical. Having an ALS in a hybrid car would be ridiculous.

Can you please explain this to someone who is not an engineer? The electric motor will do the same job as ALS? So there will be no more banging sound?

[steve.mandzij]

As far as I understand, removing the fresh air ALS will also improve emissions, no?

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[Mirek]

Can you please explain this to someone who is not an engineer? The electric motor will do the same job as ALS? So there will be no more banging sound?

Yes, the function of ALS is to keep the turbo rotating at maximum speed when the throttle valve is closed. The larger the turbo, the higher inertia it has and the more it suffers from lagging. It means it takes more time to accelerate it to full speed and to deliver the maximum boost. The electric engine can add the torque which is missing without ALS during the initial acceleration. It removes the bang but it also removes the main source of fuel inefficiency, i.e. it is somewhat green while the car performance doesn't suffer.

As far as I understand, removing the fresh air ALS will also improve emissions, no?

Yes, for sure.