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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > N54 Throttle Sensitivity Discovery thread



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      05-17-2019, 04:07 PM   #89
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Quote:
Originally Posted by Aus335iguy View Post
Thanks for sharing mate! Am I reading correctly that you halved the stock IJEOS values?
check post #81. My stock values are shown there.

You may start by cutting your stock values (if different) and use the percentage i applied.

Vehicle speed table is 90% from stock

basic correction table is:

first three rows is stock (may be 90% will work here also?! i will try)
forth is 90% from stock
rest 0

Quote:
Originally Posted by RSL View Post
I'd be curious what cruise about 2500rpm in 7th is like with that. Also, next time you're in MHD, can you go to the read codes section and tell me your current software number please? Thanks.
Cruise is perfect.

What will the software number tell you? I will update tomorrow.
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      05-17-2019, 04:46 PM   #90
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Quote:
Originally Posted by JohnDaviz View Post
check post #81. My stock values are shown there.

You may start by cutting your stock values (if different) and use the percentage i applied.

Vehicle speed table is 90% from stock

basic correction table is:

first three rows is stock (may be 90% will work here also?! i will try)
forth is 90% from stock
rest 0



Cruise is perfect.

What will the software number tell you? I will update tomorrow.
Which version you're using. There are some sizeable differences between them, just curious if it's the same one I'm using or not.
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      05-18-2019, 07:57 PM   #91
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Quote:
Originally Posted by JohnDaviz View Post
Sorry.. Update

I think i have it!! It works AWESOME for me!!

IJE0S
Custom Map from V8Bait with aggressive turbo spool
German PPK DCT Flash equal to 335is Flash with 5k LC

Awesome throttle response. No oscillations. Instant shifts. No weird clutch!
I tried those values and they are perfect. Not tested for stop start driving yet but for everything else they are solid.
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      05-23-2019, 03:12 AM   #92
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Quote:
Originally Posted by RSL View Post
Yeah, you have it too and you're compensating with the pedal, whether you realize it or not. More pedal at start, back off as it sets around 1100-1200rpm, then settle into a smooth accel. Stock does it too, but it's nowhere near as noticeable to me and I can't unnotice it now lol It might be in the TCU, but I'll see if I can smooth it out on the DME side at some point.

Apparently attachments aren't working, but for example, your RPM between the markers (DCT in 1st from a stop for anyone not following):

https://datazap.me/u/rich/v59-thrott...mark=4589-4613
I'm still running the same values as JohnDaviz and having no issues.

With regards to your observation above, I noticed something strange when the car was in "P". If I hold the accel pedal constant at around 10%, the revs will spike up to 1300 momentarily and then dip back down to 1000. It's almost as if there's a boost on the pedal upon initial application. That would explain the strange behaviour when pulling away.

I get the feeling this is a stock feature of the car.
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      05-23-2019, 10:12 AM   #93
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Quote:
Originally Posted by CarAbuser View Post
If I hold the accel pedal constant at around 10%, the revs will spike up to 1300 momentarily and then dip back down to 1000. It's almost as if there's a boost on the pedal upon initial application. That would explain the strange behaviour when pulling away.

I get the feeling this is a stock feature of the car.
Yep it is. I have it for ages now. Try to hold a certain RPM level constant in P. Good luck
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      05-25-2019, 03:02 PM   #94
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Any updates on I8 bugs/testing or upcoming MHD integration schedule?
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      05-28-2019, 04:11 AM   #95
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Quote:
Originally Posted by Works View Post
Any updates on I8 bugs/testing or upcoming MHD integration schedule?
I wouldn't hold my breath waiting for it to be added to MHD. There's not been much development with the OTS maps recently.

There would need to be a lot of testing before they add it into the maps and it doesn't seem like anyone outside of this topic is interested.

Quite surprising really. This is one of the most significant finds for years, it transforms the driving experience of the car. It's pretty big for DCT cars since it fixes the dead throttle input at low speeds which is one of the main complains of the transmission.

Things like exhaust burbles are useless and add nothing to the car but had multiple topics and massive uptake.
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      05-28-2019, 04:24 AM   #96
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Quote:
Originally Posted by CarAbuser View Post

Quite surprising really. This is one of the most significant finds for years, it transforms the driving experience of the car. It's pretty big for DCT cars since it fixes the dead throttle input at low speeds which is one of the main complains of the transmission.

Things like exhaust burbles are useless and add nothing to the car but had multiple topics and massive uptake.
I agree it is a big find. I reckon itll make its way in to MHD sooner or later.
Im keen to try the settings recommended and ive reached out to my tuner for a new file to try.
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      05-28-2019, 02:36 PM   #97
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Quote:
Originally Posted by CarAbuser View Post
I wouldn't hold my breath waiting for it to be added to MHD. There's not been much development with the OTS maps recently..
Ah, but I'm not after updated OTS maps, but adding this to the flash options. Or after info on how the testing, if any is in progress, for I8 is moving forwards so that I could ask my tuner to make these mods + others needed for my file if we are nearing a solution(s) to the previously reported issues.
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      05-29-2019, 09:32 AM   #98
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Quote:
Originally Posted by CarAbuser View Post
I wouldn't hold my breath waiting for it to be added to MHD. There's not been much development with the OTS maps recently.

There would need to be a lot of testing before they add it into the maps and it doesn't seem like anyone outside of this topic is interested.

Quite surprising really. This is one of the most significant finds for years, it transforms the driving experience of the car. It's pretty big for DCT cars since it fixes the dead throttle input at low speeds which is one of the main complains of the transmission.

Things like exhaust burbles are useless and add nothing to the car but had multiple topics and massive uptake.

Completely agree. MHD needs to offer this ASAP.

Can't count how many times I stab the throttle during a downshift and the RPMs don't rise enough to ensure a smooth clutch release. Our E46 doesn't have this problem with delayed throttle response which makes the programmed delay in the E90 even more obvious.

My 335 is a N55 but really need this feature.
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      05-29-2019, 09:40 AM   #99
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Quote:
Originally Posted by carguy138 View Post
Quote:
Originally Posted by CarAbuser View Post
I wouldn't hold my breath waiting for it to be added to MHD. There's not been much development with the OTS maps recently.

There would need to be a lot of testing before they add it into the maps and it doesn't seem like anyone outside of this topic is interested.

Quite surprising really. This is one of the most significant finds for years, it transforms the driving experience of the car. It's pretty big for DCT cars since it fixes the dead throttle input at low speeds which is one of the main complains of the transmission.

Things like exhaust burbles are useless and add nothing to the car but had multiple topics and massive uptake.

Completely agree. MHD needs to offer this ASAP.

Can't count how many times I stab the throttle during a downshift and the RPMs don't rise enough to ensure a smooth clutch release. Our E46 doesn't have this problem with delayed throttle response which makes the programmed delay in the E90 even more obvious.

My 335 is a N55 but really need this feature.
+1 I always attributed the slushy throttle response to old turbos or the final bmw software update that introduced wg lag to mask the rattling wg's back in the day, so this discovery sounds like it could be a big deal and will finally lead me to ditch my old cobb in favor of mhd.
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      05-30-2019, 12:43 AM   #100
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Seems like a lot of guys have been testing the I8A0S changes with no issues after driving their cars for a while (other than once off errors, if at all)

Have updated the original post with the dropbox link that contains IJE0S, I8A0S and IKM0S xdfs

https://www.dropbox.com/sh/e4d01nmbs...WqCVls7BfBPmEE
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      06-04-2019, 08:26 AM   #101
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I just read this entire thread from a link posted today on ***********. Glad to see these developments and hope to see it implemented soon as a flashing option in MHD.
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      06-04-2019, 08:31 AM   #102
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I’m currently running the MHD FlexFuel module with the MOTIV FlexFuel unit. I’m self-tuned using the FlexFuel XDF. How would I access or add these new throttle tables to the FlexFuel XDF? jyamona ?
Thanks.
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      06-04-2019, 10:06 PM   #103
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Quote:
Originally Posted by Jeffman View Post
I’m currently running the MHD FlexFuel module with the MOTIV FlexFuel unit. I’m self-tuned using the FlexFuel XDF. How would I access or add these new throttle tables to the FlexFuel XDF? jyamona ?
Thanks.
Download the XDFs with the defined tables above, open your rom in the corresponding XDF, make changes and save the bin. You can add the tables to the XDF you normally use with copy/paste via text file or define them manually through TP editor.
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      06-04-2019, 11:31 PM   #104
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Quote:
Originally Posted by RSL View Post
Download the XDFs with the defined tables above, open your rom in the corresponding XDF, make changes and save the bin. You can add the tables to the XDF you normally use with copy/paste via text file or define them manually through TP editor.
Thanks!
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      06-05-2019, 02:54 PM   #105
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The annoying lag between when I jab the pedal and when the car actually revs has always bothered me. I'm not tuning or coding expert, but I'm really looking forward to this!

Is it for sure going to be an MHD tickbox option soon? Otherwise, could someone make the changes to my bin file? If so, please PM me. I am using a free OTS JB4 BEF from N54tech.
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      06-05-2019, 04:17 PM   #106
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Quote:
Originally Posted by suspenceful View Post
The annoying lag between when I jab the pedal and when the car actually revs has always bothered me. I'm not tuning or coding expert, but I'm really looking forward to this!

Is it for sure going to be an MHD tickbox option soon? Otherwise, could someone make the changes to my bin file? If so, please PM me. I am using a free OTS JB4 BEF from N54tech.
Upload your bin file and I'll change the tables. You have a manual trans right?
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      06-06-2019, 10:48 AM   #107
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Quote:
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Upload your bin file and I'll change the tables. You have a manual trans right?
Yes, I do.

Here is my bin file: https://drive.google.com/file/d/1Z8u...ew?usp=sharing

Have the updates already been made to it? BMS noted something about the throttle being changed in this file.
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      06-06-2019, 11:32 AM   #108
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Here is my throttle vs pedal based on my datalog…


Is this the "response" these tables are trying to improve?
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      06-06-2019, 03:23 PM   #109
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Originally Posted by Sgop335 View Post
Here is my throttle vs pedal based on my datalog…


Is this the "response" these tables are trying to improve?
No, this is a new table discovery that determines throttle opening delay or damping over time.
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      06-06-2019, 04:39 PM   #110
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Quote:
Originally Posted by suspenceful View Post
Yes, I do.

Here is my bin file: https://drive.google.com/file/d/1Z8u...ew?usp=sharing

Have the updates already been made to it? BMS noted something about the throttle being changed in this file.
This is the bin with all the tables zeroed out. https://mega.nz/#!qkp2FQTT!ntQxFxw0c...oecvUmKzsrGIj8

Give that a try and see how it feels.
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