A-Class (W177) [Official] Mercedes-AMG A45 S And CLA 45 S

[mini_cooper4]

@CrunchSlaughtered

Max torque split front to rear is 50:50 it's then full variable left to right at the back. This gives one of the rear wheels the most torque out of the 4 and can be used to push the outside rear wheel into a power oversteer situation..

.. Apparently.

Makes the most sense.
Extremely uneven wear of the rear tires would be my main issue with this solution.

 

[klier]

@CrunchSlaughtered

Max torque split front to rear is 50:50 it's then full variable left to right at the back. This gives one of the rear wheels the most torque out of the 4 and can be used to push the outside rear wheel into a power oversteer situation..

.. Apparently.

So it's not RWD biased then? Isn't the Ford Focus RS like 40:60?

Ok. Why Merc didnt make CLS63 AMG in this gen?

Because that would render the AMG GT 4 door useless.

 

[DjordjeC63]

Because that would render the AMG GT 4 door useless.

yes, I think that A45 sedan would be surplus to CLA45 and A45 just as CLS63 would be to E63 and AMG GT63.

 

[mihc]

 

[MR Simon]

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[Ted]

It’s pretty shit the new law out were your car can’t make crackles and bangs when revving the car! Has anybody update on this ?? Or will it take Dms automotive to make this thing come alive with sound and more power

 

[Eng.ahad]

Turbochargers with roller bearings can withstand much higher loads, especially impact loads (such as a sudden acceleration, which comes from a spike in boost pressure) and they also perform exceptionally during start up and shut down, the two phases in which a typical journal bearing turbo would have its shaft touching the housing (i.e. wear). Also, since...

Thanks for the insights.

Usually in the industry where high speed machines (Turbo expanders, Compressors, Turbines, etc.) are used, sleeve bearings with forced lubrication is used. Sleeve bearings can withstand high speed and even higher vibration in certain designs (tilting pads for example) which also resolves some of the lubrication issues (oil whirl or whip), and theoretically can live forever unless there is wear or material deformation. Using roller bearings, forced lubrication will not be required anymore, the rotor will vibrate less and there will be almost no wear during start-up or shutdowns. I think the main issue with Roller bearing is that they have predicted life (L10) and it is strongly correlated with speed (N) and load. In my opinion, they should choose a high dynamic load capacity bearing, otherwise turbo bearings will require replacing after certain mileage and its going to be a huge maintenance work and cost.

 

[CrunchSlaughtered]

There are always pros and cons for using certain technology, but the manufacturers give (advertise) only the pros. Also the new 4 wheel drive system is given almost like the best of all worlds, but the lack of rear giff requires many compromises, the system should be applied as little as posible and when applied there is constant sliping of the clutches to overcome the different path of the individual rear tires and also the different speed of the front and rear axle. This brings a lot of stress to the system leading to fastet wear and eventual heat issues.

 

[MoSs]

Rs3 and ttrs all day, that 5 cylinder is a master peace

 

[martinbo]

There are always pros and cons for using certain technology, but the manufacturers give (advertise) only the pros. Also the new 4 wheel drive system is given almost like the best of all worlds, but the lack of rear giff requires many compromises, the system should be applied as little as posible and when applied there is constant sliping of t...

There is a rear diff. The clutches are add-ons to the standard rear differential for torque vectoring purposes.

 

[CrunchSlaughtered]

There is a rear diff. The clutches are add-ons to the standard rear differential for torque vectoring purposes.

If that's the case, then this is a different system to the one of the Focus. But, a big but when you have a differential any clutch pack would act as a locking device and then there is no effect of the second pack. That's why, my bet is on the system similar to the Focus' one, where there is no rear diff and the differential effect is achieved through sliping of the clutches.

 

[GTA45E]

A look inside the new M139

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[donkeykong]

 

[Srbb]

One man one engine at its finest
The best and most powerful 2l series production

 

[Grosser]

 

[Ted]

When will we hear feedback on the a45s test

 

[Grosser]

When will we hear feedback on the a45s test

My guess is till the end of july...

 

[Centurion]

I think it will get outstanding reviews.

 

[mini_cooper4]

I think it will get outstanding reviews.

It sure will.
Not a single reason to even look at BMW in this class anymore.
Can't wait to see what Audi has done with the new A/S/RS3.

 

[Rolf]

This car is probably going to be the new benchmark for hot hatch performance and for dynamics with its drift function AWD, maybe steeling the hot hatch crown from the Honda Civic Type R. I can't imagine what the N ring time will be, maybe about 7:30?