TSC sport mode different injection tables ???

[Guillaume]

Well yeah, @86drift claims there are different engine maps but on what ground?


I suppose the only way to find out is to have a look the OEM maps. A professional tuner would surely be able to do that?
@shiv@vishnu, @PERRIN,@MAPerformance?

PS: les deux

[s2d4]

Originally Posted by Harvey

Hum.... the last post is pretty assertive:

The MAPs for pedal/torque/throttle are indeed different. I am not sure I understand what you are stating in the first post though.

[Harvey]

Originally Posted by s2d4

The MAPs for pedal/torque/throttle are indeed different. I am not sure I understand what you are stating in the first post though.

If I understand this correctly, I assume these people are right? The Sport Mode does indeed change the way the car responds to accelerator action regardless of if it's sliding or wheel spinning (so sport mode doesn't only affect sliding/spinning control, but also ECU mapping)? For example, at 50% accelerator at 5200RPM the torque requests aren't the same, therefore the power requests aren't the same either...


in fact I'm not sure I'm understanting all this that well. For a given RPM in a given gear the car goes at a given speed and torque will depend on wind, hills, load, road state, .... so what does it mean to say at 50% accelerator and 5200RPM I get 230N/m (ort whatever the torque unit is)?

[s2d4]

I am only confirming that assertive quote from your post.
Like I said, I am not sure it relates to what you are stating in the op.

[Harvey]

Well.. it does relate at least a little. Basically, I'm just trying to better understand exactly what VSC Sport mode does (other than "it allows more drift" or "it handles closer to what the driver imagined" as in the manual)...


My understanding is that even in situations with no "drift"/"skid"/"wheel spinning" one should experience a different feel of the car because the accelerator will not repond in the exact same way... this doesn't mean "it will be more powerful" or anything, but it's no surprise to feel some difference (and maybe some might qualitfy it as feeling more agressive)?


I'll try messing around with GTS to see if it helps me understand anything. I guess it shows throttle open ratio (0 to 100% open)... does it show accelerator pedal "ratio" (0 to 100% down)?

[Sarlacc]

Originally Posted by s2d4

The MAPs for pedal/torque/throttle are indeed different. I am not sure I understand what you are stating in the first post though.

Very interesting chart! Thanks!
Could you please post the two datasets you got there in full?
-And what software is that?

[s2d4]

Originally Posted by Harvey

I guess it shows throttle open ratio (0 to 100% open)... does it show accelerator pedal "ratio" (0 to 100% down)?

Check mad_sb's thread.
http://www.ft86club.com/forums/showthread.php?p=721246

Originally Posted by Sarlacc

Very interesting chart! Thanks!
Could you please post the two datasets you got there in full?
-And what software is that?

It's tunerpro but you'll see it using romraider as well.

[s2d4]

Also this thread probably should have been in the technical software tuning section.
Those guys probably don't look at the general sections.

[Harvey]

Well... advantage of having this thread is than non tuning geeks also might learn something useful (although it will probably more interisting than useful I suspect!)

[s2d4]

yeah, I meant you would have much better answers from those guys.

[Tromatic]

Posted a link to this in tuning.

[Tromatic]

Hmm. Looked at my stock ROM. There are two tables that are different, but ours are labeled Requested Torque A (Accelerator Pedal) and Requested Torque B (Accelerator Pedal) in ROMRaider.

Our table B seems to be the Sport table.

[Td-d]

I'm not sure exactly what you're asking - but yes, there are different requested torque maps for each of the modes (in the subaru's with SI drive, it's intelligent, sport and Sport sharp).

In the turbo models (like the wrx, sti, gt) the requested torque table also ties up to wastegate duty cycle, and boost tables - in the FRS it's really just requested torque (so the ratio of torque that is requested relative to accelerator angle). And no, ignition maps are not affected.

[kavanagh]

@nelsmar


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