Show Me Your Throttle Maps

[Tbonem3]

Beefi, can you post your actual numbers for your "rev 1"s?

[beefaroni]

I employed a similar strategy as Big Ruskie. The deadness right off the line in comfort mode is no bueno. I also dont like switching between comfort and sport and slipping the clutch a little more than usual until i get used to the difference in sensitivity off the line.

I opted to keep the initial throttle tip-in fairly similar between comfort and sport to help have some consistency off the line and avoid slipping the clutch. I originally had a REV 0 to try a numerically linear mapping. Not good. There is a hump in the mid-range for a reason. Must have to do with the flow change vs throttle opening.I also had comfort and sport too similar to where it was pointless.

I will give REV 1 a try for a few days. I cant imagine I will need to touch it much of at all after this. making sport less sensitive and making comfort more responsive off the line is the majority of the battle.

[Tbonem3]

Appreciate the detailed response!

[BigRussia]

BigRuskie, did you edit sport mode as well? Can you post your new numbers that you edited for komfort mode?

Indeed I did! And yes look on my post, I had attached before and afters for both Komfort and Sport ('before' being stock to my understanding). Compare the before and afters side by side and you'll see the differences. Happy to explain and hope this helps out anyone having the same personal preference issues I was!

Basically for Komfort I upped the throttle values for the initial pedal travel (the 5-30% pedal range to be exact). I want to say its a happy medium between the stock Sport and Komfort initial throttle values. The stock Komfort initial pedal tip in always felt dead to me and even made the engine feel lazy on throttle blips. It was especially noticeable at the track when getting back on power feeding throttle slowly like for a long sweeper. I wouldn't use Sport mode on track since it was too jerky and aggressive and didn't lend to smooth throttle inputs. I attached the same before and after below (take a look at the throttle values on the right side).

So then for Sport mode I smoothed down the power on the mid and upper band of travel, so that it is a bit more linear and not at nearly full throttle halfway through the pedal travel like in stock. This wasn't to address the jerkiness at the track per se, just to get that kick in the pants feel when you hit the pedal to the floor and feel a rush of power come on. Before it wasn't as evident since you were already basically at WOT without physically being WOT. Before and After posted below, you'll see nearly every throttle value was lowered other than for the 1%, 5%, and 100% pedal ranges.


Again none of these changes are major and wont drastically change the character of either mode, so no need to worry about it messing with what you're used to. But I like to think its a minor improvement that feels natural.

[x Spades x]

Spades. Looked at your tune. Your KOMFORT and SPORT maps look nearly identical (2 percent diff between the two). That is likely why the sport button does nothing you can perceive.



Your SPORT map look identical to stock but the KOMFORT map was modified to look more like SPORT. The un-dotted line is the stock KOMFORT map.

Woooow, thank you so much!!

I guess I can just adjust back to regular Comfort mode (or try out someone's maps from here). This is awesome, I really appreciate your help!!

[Tbonem3]

BigRuskie, did you edit sport mode as well? Can you post your new numbers that you edited for komfort mode?

[eacmen]

PM's!! I email it to ya? Would love to pick your brain

Spades. Looked at your tune. Your KOMFORT and SPORT maps look nearly identical (2 percent diff between the two). That is likely why the sport button does nothing you can perceive.



Your SPORT map look identical to stock but the KOMFORT map was modified to look more like SPORT. The un-dotted line is the stock KOMFORT map.

[x Spades x]

You were correct, and I want to say a thank you to you sir! With your tool I was able to finally adjust out that initial throttle dip in Comfort mode. I also made the top part of the Sport mode more linear, I didn't like how it was nearly WOT throttle after only halfway of pedal travel. Driving you'll be at 3/4 pedal and when you floor it expecting more power it'd be just nothing cause was nearly full power already. Also seems like TTFS hadn't messed with the throttle settings, as they matched what seems to be stock values for both modes.

I posted both before and afters if anyone was curious. I mostly test drove Comfort and was happy with the initial throttle response, not crazy and jerky like Sport but responsive, easy to clutch out, and nice for rev matching; I didn't drive the adjusted Sport settings as much but it felt good when I tried it a couple times (as mentioned what I was looking for there was more of a feeling of power delivery in the upper band of pedal travel).

BTW noob question and maybe should've asked earlier, but making these changes to the base bin (in my case a custom TTFS tune bin) with the options in the tool doesnt affect the part of the 'tune' that determines engine tuning and power right? I imagine that's a whole different part of the bin or dme, and requires a whole different program? Just want to make sure I'm not losing my TTFS engine dyno tune with these changes.

No, you are not messing up your tune. These changes are adjusting the parameters... the tune is focused on timing, etc.

[BigRussia]

TTFS don't lock DMEs.

You were correct, and I want to say a thank you to you sir! With your tool I was able to finally adjust out that initial throttle dip in Comfort mode. I also made the top part of the Sport mode more linear, I didn't like how it was nearly WOT throttle after only halfway of pedal travel. Driving you'll be at 3/4 pedal and when you floor it expecting more power it'd be just nothing cause was nearly full power already. Also seems like TTFS hadn't messed with the throttle settings, as they matched what seems to be stock values for both modes.

I posted both before and afters if anyone was curious. I mostly test drove Comfort and was happy with the initial throttle response, not crazy and jerky like Sport but responsive, easy to clutch out, and nice for rev matching; I didn't drive the adjusted Sport settings as much but it felt good when I tried it a couple times (as mentioned what I was looking for there was more of a feeling of power delivery in the upper band of pedal travel).

BTW noob question and maybe should've asked earlier, but making these changes to the base bin (in my case a custom TTFS tune bin) with the options in the tool doesnt affect the part of the 'tune' that determines engine tuning and power right? I imagine that's a whole different part of the bin or dme, and requires a whole different program? Just want to make sure I'm not losing my TTFS engine dyno tune with these changes.

[eacmen]

PM's!! I email it to ya? Would love to pick your brain

PM'd

[x Spades x]

Never seen this before. Post your bin?

PM's!! I email it to ya? Would love to pick your brain

[SliM3]

Thanks for that info. Attached is is the same map from the tune that I inherited which matches the stock table for comparison. Seems like you limited the table to 4300 rpm and below? What is the rationale there? The stock table has entries up to 7000rpm.

eacmen, the map I posted is from the CSL tune. A lot of the maps like this tend to focus heavily on low to mid range, while the US and Euro maps tend to target the whole powerband. I assume it's the combination of the different cam profiles, airbox/flap & limited emissions control.

[Martyn]

Cool thanks, so I guess my first move is to check if the bin is locked with BMWFlash. Mostly likely it is, I doubt TTFS would leave it unlocked

TTFS don't lock DMEs.

[BigRussia]

If ttfs locked your bin then you'll have to go back to them. If you're able to read the bin file using BMWFlash then you'll be able to change it yourself.

Cool thanks, so I guess my first move is to check if the bin is locked with BMWFlash. Mostly likely it is, I doubt TTFS would leave it unlocked

[eacmen]

Guys, what you're changing is only half of it! The other map you should be tuning is KF_MD_FAHRER or Driver Demand Torque (8x6 Map; Euro & CSL 0x8298 RPM; 0x82A8 %-pedal position; 0x82B4 %-torque).

OVERVIEW
"The driver's request is determined by the PWG module in the form of a relative pedal position "pwg_soll", where 0% corresponds to an accelerator pedal that is not actuated, 100% to the full throttle stop of the pedal. This relative pedal position is converted via the map "KF_MD_FAHRER" into a relative driver request "md_fw_rel", which in turn is between 0 and 100%. 100% corresponds to the maximum effective torque "md_e_max". 0% corresponds to the drag torque with hyperbola boost "md_e_schlepp_hyp" (without consumer)."<---------- (doesn't include drag torque from accessories like AC, alternator, H2O pump, engine drag, etc.)


Here's mine for comparison, but don't go too crazy or you'll start throwing error flags and EML lights because torque values aren't jiving!

Thanks for that info. Attached is is the same map from the tune that I inherited which matches the stock table for comparison. Seems like you limited the table to 4300 rpm and below? What is the rationale there? The stock table has entries up to 7000rpm.