Tune out steering angle based boost?

[sluflyer06]

If theres a thread on this I can't find it.

My only serious gripe about the MS3 is the inability to power out of a corner because the ECU castrates the power if the steering wheel is turned. Does the AP or any of the other tuning solutions give the ability to tune this out?

Or possibly (though I'm sure I'm not that lucky) some way to disable the steering angle sensor?

It's no fun to hit the gas to exit from a corner and have the car be dead in the water only to feel like someone just strapped a nitrous tank to it as soon as the wheel is straightened out (pissed)

 

[MSMS3]

Great question. I "feel your pain" as one politician once said. I don't know the answer. If there is a solution, I'd love to know it too.

To me this is more important than getting around the engine nanny's hold back of power in first and second. You can't even get up to those already low limits in those gears if you have the front tires a few degrees to the left or right.

Anyone out there that can help us?

 

[sluflyer06]

Great question. I "feel your pain" as one politician once said. I don't know the answer. If there is a solution, I'd love to know it too.

To me this is more important than getting around the engine nanny's hold back of power in first and second. You can't even get up to those already low limits in those gears if you have the front tires a few degrees to the left or right.

Anyone out there that can help us?

I agree it is much more intrusive than the limited boost in 1-2. Coming from a much faster car than the MS3, I find the suspension setup on the MS3 very enjoyable and I'd like to take full advantage of it.

 

[dread]

there is a way to unplug the sensor, but I forget how its done. I am sure you can do this with the ap, but I haven't figured that out yet.

 

[matsuda]

there is a way to unplug the sensor, but I forget how its done. I am sure you can do this with the ap, but I haven't figured that out yet.

Noooooo...

That sensor is also used by the DSC/ABS.

 

[speed3driver]

Just turning off traction control seems to give me a lot more play with power in corners.

 

[sluflyer06]

Bump for some more input on this..

 

[dread]

I haven't seen any tables that are labeled steering angle, but there are many instances where there are several tables labeled A B and C. If I had to guess it would be the throttle requested load table B. A and C are the same but B requests significantly less load. However, table B could also be a high knock table or high BAT table so I would be careful changing it. I am sure it is in there but you would need to get confirmation from cobb on which table it is.

 

[fostersafb]

You would think it would be an easy answer to get. If the ECU has been cracked than every part of it should be exposed. I bet your right dread, on the A, B and C thing. In ATR there are a bunch of values that change and are indicated by knocking, no knock, unused, high BAT and normal BAT. The throttle load tables don't indicate any of those so maybe thats the one.

Maybe we should try on the Cobb forum for an answer?

 

[dread]

already posted it there. I guess we will see. an easy way to find out is post the values from table A into table B and floor it around a corner. LOL. I don't recommend doing that.

 

[sluflyer06]

OK I got confirmation from COBB that you can indeed change this function of the torque management system through tuning.

 

[dread]

did they tell you what table it is

 

[sluflyer06]

did they tell you what table it is

Sorry he did not. I PM'd "Travis@COBB" maybe he will enlighten you.

 

[wisniaPl]

just disconnect that sensor under sterring column...just be carefull it will fully boost on the corners

 

[MSMS3]

just disconnect that sensor under sterring column...just be carefull it will fully boost on the corners

Pull that plug and you have no ABS brakes! That will deactivate the wheel speed sensors.

I'd rather still have the ABS when trying to pull this thing down from high speed or when in an emergency braking situation.

 

[COBB Tuning]

I have been talking to the tuners about this issue and hopefully I can get an answer for you all shortly.

Travis
COBB Tuning

##########update############

OK, so as far as we know, there are no tables for a torque clamp or boost clamp based on steering angle. This appears to be an issue with the differential, not the ECU. Can you guys supply a log that shows this phenomena? Otherwise, our MS3 expert, Christian, tells me that there is no ECU or tuning fix to this.

 

[fostersafb]

So then what do the different lettered tables apply towards? Most are labeled as being utilized during knock scenarios, no knock, high BAT, etc. The throttle tables and load tables that we have been adjusting don't specify anything.

Can we get a specific answer on what each of the tables apply towards? Christian mentioned TCS possible for B.

 

[bani]

I have been talking to the tuners about this issue and hopefully I can get an answer for you all shortly.

Travis
COBB Tuning

##########update############

OK, so as far as we know, there are no tables for a torque clamp or boost clamp based on steering angle. This appears to be an issue with the differential, not the ECU. Can you guys supply a log that shows this phenomena? Otherwise, our MS3 expert, Christian, tells me that there is no ECU or tuning fix to this.

unplug the steering angle sensor and torque/boost is completely unlimited regardless of steering angle. disabling DSC with the button won't achieve this.

it's definitely an ECU thing.

 

[Mid_Life_Crisis]

This appears to be an issue with the differential, not the ECU. Can you guys supply a log that shows this phenomena? Otherwise, our MS3 expert, Christian, tells me that there is no ECU or tuning fix to this.

The first sentence makes no sense. How can the differential limit boost, unless it has sensors that are feeding back to the ecu which makes the decision to limit boost? Which isn`t the differential limiting the boost at all, but the ecu based on data from the differential.

 

[dread]

I put this question on the cobb forums and suggested that throttle requested load table B may be related to this. Christian didn't know for sure what that table does but he guessed it was for traction control. The ecu may use the same table for the steering wheel angle. It has much less requested load and maybe the ecu just does the same thing if you lose traction or if you have the wheel turned. There are no tables that have steering wheel angle in them so it may just be a cut off point. Christian suggested adjusting the table and seeing what happens. Since I don't really want to turn off the steering torque sensor I will leave that for someone else to do, but this is the only table I have seen that could possible be related to this.