In a similar way the Focus RS Ecoboost engine was too efficient at making horsepower so they borked it!

 

Cobb stock results are in: 304 hp 340 ft/lb (But they only dyno'd the car in fwd mode)

They may even have an explanation for others inconsistent dyno results (below). However, that explanation does not explain why owners are still reporting inconsistent power and trap speeds on the street/track.

"When our baseline numbers for the Focus RS were first released, there was a lot of talk about them being inflated and even more concern surrounding the fact we dyno’d the vehicle in FWD instead of AWD mode. There’s good reason for that!

The Focus RS does not have a center differential like other AWD vehicles in its class. Instead, there is an electronically controlled clutch pack that sends a variable amount of power to the rear differential. This system is called the Rear Drive Unit or RDU. When the RDU is active (sending power to the rear wheels), it causes the rear wheels to spin faster than the front. Keep in mind that the dyno rollers are linked front and back so they spin at the same rate. With the rollers spinning at a constant rate, and the vehicle trying to spin the front and rear wheels at different rates, things don’t mesh well. When this is the case, the car actually “thinks” it is losing traction which results in it intentionally limiting power. The best way to dyno the vehicle is in FWD mode with the RDU disconnected."
http://www.cobbtuning.com/ford-focus...d-development/

 

So the torque numbers are actually higher than advertised.

 

Well if you plan on permanently disconnecting the RDU they are lol

 

So the RDU borks it.

 

It sounds like a combination of the RDU and the ECU, as apparently "When this is the case, the car actually “thinks” it is losing traction which results in it intentionally limiting power."

If their description is correct, the ecu modulates power whenever it detects traction loss. So you may have the pedal to the floor, but the car is deciding how much power you get to have.

 

thats an interesting take on an AWD system, i wonder if that RDU will be a point of pain or relief when modding.

 

Which is common. Lots of cars do that.

 

Be interesting to see how the RS does on a Dynapak since so much torque vectoring is going on.

 

And updated Mishimoto stock dyno pulls:


"We have arrived at a new, consistent, level of output over ten dyno pulls in third gear: 310 hp, and 323 ft-lbs of torque."

 

It has gotten to a point where technology becomes inflexible in making certain changes. I remember when I was at Edwards and NASA was working on the reverse wing technology (X-29). The engineer told me the plane would crash if the computer failed and the pilot was required to fly it.

We have seen that recent commercial on TV for GMC and the suspension that adjusts a 1000 times a second.

" Ain't that sumthin "

Someones gonna figure it out..... just not today.

 

Interesting. I wonder why Mishimoto does not seem to be experiencing the "problems" with dynoing the RS in AWD mode, as described by Cobb.

 

Watch the video and read up on their first round of baselines, they had problems as well.

Hopefully this is the end of you vomiting out your mouth the same thing over and over and over again.

Thank the internetz. Praise the web.

 

So is there an explanation for owners reports of inconsistent power and trap times yet? Or do you think its just the RDU getting hot causing the ecu to limit power?

Here is another thread, with videos of the boost fluctuations. http://www.focusrsoc.com/forums/topi...rboost-levels/

 

I already posted what I thought pages ago. I'm not you in any way so I'm not vomiting it out my mouth hundreds of times over and over again.

As others have said already... things are progressing and more information will come out every week. To repeat the same thing over and over and over and over again does nobody any favors. Plus it's annoying as all hell.