NEW: OpenFlash Tablet for F series M3/4/5/6

[OpenFlash]

hdfsglm Maps sent!

Some notes from my email to you that others may find useful:

With Eco-Mode, the biggest thing to remember is that with the exh. valve closed, the turbo spools slightly more lazy due to the physics of the engine and pumping efficiency. With this slower exhaust gas flow/exit it also causes the throttle to feel a bit more lazy too. It will be difficult to replicate the behavior of sport mode because of the valves operation. ALSO, there is a valve lift difference between the modes, this is what makes the car feel more lively in the sport modes -- its very deliberate/intentional in the software.

We can manipulate the throttle behavior a bit -- So I've made a few changes in this ROM to do so. It's possible that this could be a bit too much (or not enough), so try it and report back.

I've attached an .xdf as well. You can use it to manipulate the ROM as you desire, but be very careful! There is not a whole lot of instruction I can offer as many of the settings/changes you'd want to make are interlaced with other parameters.

--- Notes ---

The thing you sound most interested to work with is burbles.

These are the tables you'll want to mess with:






Burble ignition timing tables:

Setting the tables more negative will give you a more aggressive burble, while going more positive will make them more subtle.

​Max Time for Burble:

These tables set a duration (how long the burbles will last) at/over a given wheel speed. As you can see, at higher wheel speeds, less burble duration is allowed (even in OE format) -- you can adjust these as you see fit.

You can use the OFT to directly control (force) the exhaust flap in whatever position you'd like, but I do NOT recommend forcing it closed while driving aggressively -- you'll begin to notice a lot of ignition correction due to heat 'build-up' in the exhaust system while producing high power in sport/sport+. There is a reason why EcoMode still opens the valve when passing or doing fast acceleration. --- All this to say, you do not need a 3rd part controller anymore.

Please update your OFT template file with the version attached to this email to ensure all menu options will be available -> https://support.openflashtablet.com/...ated-12-26-18-

~Anthony

[domino_z]

For all those triggered by burbles, do not watch

But yes another video highlighting the sport burble and sport plus burble needs to be flipped in the tune to work as per oe zcp

[OpenFlash]

So Sport+ Burble is working .... I don't know why I was under the impression it wasn't working at all (... because that didn't make any sense to me).

I'll email you.

~Anthony

[EricSMG]

Originally Posted by domino_z

Having spent some time bw both full and flat torque maps, the flat torque is what I prefer

The full torque gives you that impress your mates mid range pull, but for me I feel it's too much for the chassis

I feel like the torque comes on too fast and hard and just upsets the balance of the car, this is especially apparent coming off a corner, revs right in mid range, accelerate and the torque hit causes the mdm to trigger. You end up just being paranoid going deep into throttle, and for me I lost all fluidity and smoothness stringing corners together

Another issue is the drop off in power at higher revs, to the point where you end up falling into habit of short shifting and driving it like a diesel

The flat torque for me feels like what I assume the cs/gts is tuned like from factory. The extra midrange torque is there, but you have to go really deep into throttle to feel it. I can come off a corner and have full confidence accelerating knowing that torque hit won't upset the chassis

I'm still hoping Anthony and Shiv can sort out the burble issues in sport +, it's just gotta be a weird anomaly in the tune, because the burble is as per stock zcp in sport

If you still wanted the big power numbers while retaining that flat torque like power delivery, fitting bigger turbos would be way to go, and something I'm keen on doing - I fit high flow turbos on my evo x and r35 GTR and preferred the boost/power build towards red line vs stock turbo midrange only punch

Our tastes seem precisely aligned. I want only the extra top end pull but only if 100% OE drivability.

The only other tune that interests me is the BM3 CS+. Have you tried this tune?

[domino_z]

Originally Posted by EricSMG

Our tastes seem precisely aligned. I want only the extra top end pull but only if 100% OE drivability.

The only other tune that interests me is the BM3 CS+. Have you tried this tune?

Not interested in bm3

Was part of the fb group but had to bail as all the people with problems was clogging up my newsfeed - not even anti trump articles we're getting through

[M4_CaptFlashheart]

do you need me to email or text for an updated file with increased burbles? Mine sound very quiet and would prefer more like dominos above video in sport + mode. cheers.

[PayamFSU]

Wow V2.2 flat tq is great car pulls like a freight train. Throttle is much better drives very close to stock. Vary nice improvement over V2.1. Will send you some logs today.

[domino_z]

Originally Posted by OpenFlash

So Sport+ Burble is working .... I don't know why I was under the impression it wasn't working at all (... because that didn't make any sense to me).

I'll email you.

~Anthony

Yeh it's always worked, just been quieter than sport

Another item I keep forgetting, start up roar needs to be louder as it's not comparable to stock zcp atm

[hdfsglm]

Does anyone of you guys have startup roar delete + flaps always open in sport/sport+ mode with this tune?

I have the situation that the flaps are not opening immediately when switching to sport/sport+ mode at stand still.
I need to press throttle and then they open. When I'm driving same behaviour, if I accelerate and choose sport/sport+ they open immediately.
When the car is rolling without throttle they only open once I give throttle.

Maybe it has to do with the comp pack.
I noticed without startup roar delete (OEM), comp pack cars always open flaps after engine stop/ignition off. To perform the startup roar on engine start.
With startup roar delete, comp pack cars leave valve as they are after engine stop and force valves to close when engine start/ignition on.
But I don't think that this is the problem. It should open valve as I switch to sport/sport+.

Can someone share experience on their car? With or without startup roar delete and/or comp pack.

[EricSMG]

Originally Posted by domino_z

Drivability is huge for me, to point where I'd happily retain oe tune if it means smoother throttle

Having tried 3 tuning platforms on my car, I can say this latest v2 map is as close to stock as I've driven yet, and it's noticeable

It's still not 100% oe, getting off the line is most apparent difference to stock but not sure that can be fully solved given the higher torque multiplication. I'm on a revised throttle map which has reduced the sensitivity, and it's helped a lot, but I still get on throttle in sport+ with slightly less confidence as I do on the oe tune. Part of this is in my head I'll admit, and something I'd just get used to overtime

There is just the slightest stumble in sport+ getting on/off very light trailing throttle, but it's so minute most wont feel it - I'm just very pedantic about these things so notice it. On other platforms this was so noticeable it put me off straight away

I'm really keen to try v3 mapping and compare it to v2

I will guarantee feel this as I, too, am super sensitive to any 'degradation' from stock.

Are you able to elaborate on the bold above?

[shay2nak]

Originally Posted by PayamFSU

Wow V2.2 flat tq is great car pulls like a freight train. Throttle is much better drives very close to stock. Vary nice improvement over V2.1. Will send you some logs today.

Does anyone have a dyno of Flat Torque V2.2? What's the difference from the original FT tune?

[domino_z]

Originally Posted by EricSMG

I will guarantee feel this as I, too, am super sensitive to any 'degradation' from stock.

Are you able to elaborate on the bold above?

It's to do with the throttle sensitivity - it's still a bit too sensitive for me, so when getting back on throttle to just creep up speed it feels on/off in sport plus - in efficient and sport it's fine

I've asked Anthony to further reduce throttle sensitivity for me on next map

[EricSMG]

Originally Posted by domino_z

It's to do with the throttle sensitivity - it's still a bit too sensitive for me, so when getting back on throttle to just creep up speed it feels on/off in sport plus - in efficient and sport it's fine

I've asked Anthony to further reduce throttle sensitivity for me on next map

Gotcha - yeah, the OEM throttle mapping is fantastic in this regard. You have very precise control of the power output as you tip into the throttle, at any rpm, in Sport+. It's aggressive but ultra svelte = bliss.

Honestly, a tuner should never, ever touch the throttle mapping if at all possible (I realize that this may be different for a turbo application) as it almost always results in a step down from stock.

We want high resolution control.

[domino_z]

Originally Posted by EricSMG

Gotcha - yeah, the OEM throttle mapping is fantastic in this regard. You have very precise control of the power output as you tip into the throttle, at any rpm, in Sport+. It's aggressive but ultra svelte = bliss.

Honestly, a tuner should never, ever touch the throttle mapping if at all possible (I realize that this may be different for a turbo application) as it almost always results in a step down from stock.

We want high resolution control.

from what i understand, the throttle tip in is not independent of adding power

the way this ecu is defined, adding power makes the throttle more sensitive, it is then up to the tuner to find ways to scale this back

having tried 3 different platforms now, some tuners do it better than others.....hence why i'm here working with Anthony to dial in the maps further

[OpenFlash]

Originally Posted by M4_CaptFlashheart

do you need me to email or text for an updated file with increased burbles? Mine sound very quiet and would prefer more like dominos above video in sport + mode. cheers.

Shoot me an email or text! I'll get something to ya!

Originally Posted by PayamFSU

Wow V2.2 flat tq is great car pulls like a freight train. Throttle is much better drives very close to stock. Vary nice improvement over V2.1. Will send you some logs today.

I'm working through mapping needs tonight! Finally got some spare time with the wife getting home earlier todat ... 4am vs. 9am (swing shift vs. grave).

Originally Posted by domino_z

Yeh it's always worked, just been quieter than sport

Another item I keep forgetting, start up roar needs to be louder as it's not comparable to stock zcp atm

Hmm.. I'll check the valve opening at startup see if its lower than OEM.

Originally Posted by shay2nak

Does anyone have a dyno of Flat Torque V2.2? What's the difference from the original FT tune?

Too much to list! I touch on some of it 1 page back

Originally Posted by domino_z

It's to do with the throttle sensitivity - it's still a bit too sensitive for me, so when getting back on throttle to just creep up speed it feels on/off in sport plus - in efficient and sport it's fine

I've asked Anthony to further reduce throttle sensitivity for me on next map

Will do!

Originally Posted by EricSMG

Gotcha - yeah, the OEM throttle mapping is fantastic in this regard. You have very precise control of the power output as you tip into the throttle, at any rpm, in Sport+. It's aggressive but ultra svelte = bliss.

Honestly, a tuner should never, ever touch the throttle mapping if at all possible (I realize that this may be different for a turbo application) as it almost always results in a step down from stock.

We want high resolution control.

Originally Posted by domino_z

from what i understand, the throttle tip in is not independent of adding power

the way this ecu is defined, adding power makes the throttle more sensitive, it is then up to the tuner to find ways to scale this back

having tried 3 different platforms now, some tuners do it better than others.....hence why i'm here working with Anthony to dial in the maps further

The increased sensitivity isn't from manipulation/table changes or a deliberate increase in "throttle mapping". We actually go out of our way to REDUCE sensitivity from the start. I'll explain some more.

Because this is a valvetronic engine, what is conventionally "more accel pedal = more throttle body opening" is now "more accel pedal = more valve lift".

The throttle body is open nearly all the time and is used more as a backup/failsafe; especially when MDM or Traction Control is active.

With tuning, we begin by requesting more TQ and cylinder air filling. This does a few things in the ECU software -- the two that contribute to the sensitive throttle are:

*Commands the ECU to increase valve lift (at lower engine speeds/accel pedal angles) in order to reach target TQ values.
- Because the TB is almost always open (~40% or so at all times [unless WOT]), the air is already available at the valve face, and can immediately enter the cylinder with a change in valve lift. This is why you may notice that at idle, intake manifold pressure is shows the same as (or very close to) matching atmospheric pressure while data logging. There is no high vacuum that you'd get from a shut throttle body.

In a conventional engine (without valvetronic) after the TB opens, the air has to move though the IM before getting to the valve and entering the cylinder. In a conventional intake/TB system this is what you may perceive as throttle lag --- that simply doesn't exist for the S55; so we scale back the "aggressiveness" and lift at these lower engine speeds/throttle demands.

*Increase turbo response by closing WG a bit more to achieve TQ targets values (at lower engine speeds/accel. pedal angles)
-This keeps the turbo responding quicker which causes boost to rise sooner, entering the cylinders faster (consider valvetronic, too).

These are the reasons and need to dial back the "throttle mapping" -- which you may now understand is actually accel pedal to valve lift relationship/demand.



---- With all the above in mind, too -- I think I know why burbles may seem a bit muted in Sport+ vs. Sport with some of the tune files ...

In Sport+ the Wastegate is a bit more 'shut' than usual, and may be suppressing some noise (burble).

Ive noticed this is more prevalent on cars with an aftermarket exhaust. We only have stock exhaust on our dev cars, and do't notice a difference. Still doing some work to find an appropriate way to make it more appealing to Tommy L Garage and domino_z. One way to overcome the difference is with a "pop bang" style of burble -- then you wouldn't really notice the difference.

~Anthony

[EricSMG]

Anthony - thanks for the explanation. It makes perfect sense and I had a hunch that there was more to it than simple throttle mapping.

[OpenFlash]

Originally Posted by Railgun

Want to correct that? That's exactly what you'd get.

I assume that's a typo.

No, its good. Here, i've made a diagram. --- MS Paint is useful for something -- and OSx Preview



As pressure moves away from atmospheric pressure (to the left), manifold vacuum is increasing (lower manifold pressure). As pressure moves away from atmosph. to the right, manifold vacuum is decreasing (higher manifold pressure).

Because this S55 is valvetronic, and the TB stays open most of the time, the intake manifold pressure is almost always the same as atmospheric presseure (i.e. low manifold vacuum, but high(er) (relative) manifold pressure @ ~80-95KPA at idle/cruise.



Conventional throttle body configurations where the TB closes to control air movement into the engine idle and cruise anywhere from ~30kpa to 95kpa depending on how 'open' the throttle plate is at a given moment. The more closed a conventional TB plate is, the HIGHER the manifold vacuum (lower manifold pressure). The more open a conventional TB plate, the LOWER the manifold vacuum (higher manifold pressure) .... it's counter intuitive; until you think about it as manifold pressure.

Originally Posted by EricSMG

Anthony - thanks for the explanation. It makes perfect sense and I had a hunch that there was more to it than simple throttle mapping.

I aim to please! I'm glad I you've got a better understanding of the physics at play --- it isn't simple.

~Anthony

[domino_z]

@OpenFlash have you had a chance to check my logs and vid I emailed

[OpenFlash]

Originally Posted by Railgun

I know. I was just saying at a closed throttle, you wouldn't see vacuum. Perhaps in a different context that would be true but in the strictest sense, a closed throttle will see vacuum in the manifold...no way around that.

I'm still not quite sure I understand what you mean -- but that's OK.

With the TB closed, vacuum always increase in the intake manifold - Thats physics. With the throttle body remaining open, vacuum stays ~the same as ambient pressure.

Originally Posted by domino_z

@OpenFlash have you had a chance to check my logs and vid I emailed

Yep! They look great! I'll be sending you some mapping to test before the weekend is over - finishing up a few things, and exposing some additional tables.

~Anthony

[OpenFlash]

Last bit of testing getting finished up!

Anyone waiting for some new mapping will have their maps via email soon!

Thanks for your patience -- We're finding a lot of additional table/data bytes that really tips the scales with performance, and driveability!

~Anthony

[jpsimon]

Is the in-house M2C helping development move faster now? The results on that car posted on facebook were really impressive.

[4everkidd]

Originally Posted by OpenFlash

Last bit of testing getting finished up!

Anyone waiting for some new mapping will have their maps via email soon!

Thanks for your patience -- We're finding a lot of additional table/data bytes that really tips the scales with performance, and driveability!

~Anthony

Perfect!

I have stock idle logs and tuned idle logs ready to fire you as well Anthony. I'll try to get to it tonight