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      03-23-2019, 09:11 AM   #133
Acexxon
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I just updated to 5.7 and went out for a quick drive, it's a relatively nice and cool tonight (60F)

Noticed a couple of things right away:

Exhaust sounds muffled compare to 5.5 (I didn't update to 5.6), burbles are there, and still very loud...

The car pulls harder than before and I can tell that right away. I've had BM3 since the first OTC map was available and this 5.7 is a rocket.

I don't know much about data logging and what not, but I assume Halim@HCP has tested everything and made sure all is safe? My AWRON gauge picked up a max exhaust temp of 1300 degrees C. Which kinda surprised me considering I wasn't even driving that hard, then again Halim pointed out a while ago that exhaust temp reading from the AWRON gauge may not be accurate.

The power is there, the muffled exhaust sound just sounded awkward and I hope it's not something we should be worried about. Will hit the track on Monday and see how it goes under warmer weather and more extreme conditions. I too prefer consistency over max gain.
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      03-23-2019, 10:40 AM   #134
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Quote:
Originally Posted by Acexxon View Post
I just updated to 5.7 and went out for a quick drive, it's a relatively nice and cool tonight (60F)

Noticed a couple of things right away:

Exhaust sounds muffled compare to 5.5 (I didn't update to 5.6), burbles are there, and still very loud...

The car pulls harder than before and I can tell that right away. I've had BM3 since the first OTC map was available and this 5.7 is a rocket.

I don't know much about data logging and what not, but I assume Halim@HCP has tested everything and made sure all is safe? My AWRON gauge picked up a max exhaust temp of 1300 degrees C. Which kinda surprised me considering I wasn't even driving that hard, then again Halim pointed out a while ago that exhaust temp reading from the AWRON gauge may not be accurate.

The power is there, the muffled exhaust sound just sounded awkward and I hope it's not something we should be worried about. Will hit the track on Monday and see how it goes under warmer weather and more extreme conditions. I too prefer consistency over max gain.
Omg I thought I was just hearing things but seeing someone else type this out makes me think it wasn't just in my head. I also went from 5.5 directly to 5.7 (had a short stint with 5.6 but went back to 5.5 immediately cuz of burbles)

I can't be sure but i also thought the exhaust note sounded quieter and muffled but figured it could've been my sport cat taking a hit from a bit too much burble. Going catless soon though so we will see.

Still not 100% sure but reading your comment got me thinking again
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      03-23-2019, 11:36 AM   #135
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Quote:
Originally Posted by nioh_lbbm2 View Post
Omg I thought I was just hearing things but seeing someone else type this out makes me think it wasn't just in my head. I also went from 5.5 directly to 5.7 (had a short stint with 5.6 but went back to 5.5 immediately cuz of burbles)

I can't be sure but i also thought the exhaust note sounded quieter and muffled but figured it could've been my sport cat taking a hit from a bit too much burble. Going catless soon though so we will see.

Still not 100% sure but reading your comment got me thinking again
I am running akra catless dp with the akra full exhaust system and I am pretty sure the exhaust note sounds muffled and wasn't like what it was before. Again, I don't mind it being a bit quieter, just hoping it has nothing to do the exhaust flow and exhaust temperature reading that I saw... Halim@HCP any comments on this? thanks!
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      03-24-2019, 06:08 PM   #136
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Quote:
Originally Posted by Acexxon View Post
I just updated to 5.7 and went out for a quick drive, it's a relatively nice and cool tonight (60F)

Noticed a couple of things right away:

Exhaust sounds muffled compare to 5.5 (I didn't update to 5.6), burbles are there, and still very loud...

The car pulls harder than before and I can tell that right away. I've had BM3 since the first OTC map was available and this 5.7 is a rocket.

I don't know much about data logging and what not, but I assume Halim@HCP has tested everything and made sure all is safe? My AWRON gauge picked up a max exhaust temp of 1300 degrees C. Which kinda surprised me considering I wasn't even driving that hard, then again Halim pointed out a while ago that exhaust temp reading from the AWRON gauge may not be accurate.

The power is there, the muffled exhaust sound just sounded awkward and I hope it's not something we should be worried about. Will hit the track on Monday and see how it goes under warmer weather and more extreme conditions. I too prefer consistency over max gain.
1300C is extremely high and doesn't make sense, that value is calculated and never above 800-900C when pushed very hard round a track.

Muffled sound? Maybe you should try to open the exhaust flaps in sport mode in the config menu for the OTS map.
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      03-24-2019, 06:35 PM   #137
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Quote:
Originally Posted by Halim@HCP View Post
Quote:
Originally Posted by Acexxon View Post
I just updated to 5.7 and went out for a quick drive, it's a relatively nice and cool tonight (60F)

Noticed a couple of things right away:

Exhaust sounds muffled compare to 5.5 (I didn't update to 5.6), burbles are there, and still very loud...

The car pulls harder than before and I can tell that right away. I've had BM3 since the first OTC map was available and this 5.7 is a rocket.

I don't know much about data logging and what not, but I assume Halim@HCP has tested everything and made sure all is safe? My AWRON gauge picked up a max exhaust temp of 1300 degrees C. Which kinda surprised me considering I wasn't even driving that hard, then again Halim pointed out a while ago that exhaust temp reading from the AWRON gauge may not be accurate.

The power is there, the muffled exhaust sound just sounded awkward and I hope it's not something we should be worried about. Will hit the track on Monday and see how it goes under warmer weather and more extreme conditions. I too prefer consistency over max gain.
1300C is extremely high and doesn't make sense, that value is calculated and never above 800-900C when pushed very hard round a track.

Muffled sound? Maybe you should try to open the exhaust flaps in sport mode in the config menu for the OTS map.
Thinking he meant 1300 F?
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      03-24-2019, 06:47 PM   #138
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Quote:
Originally Posted by PackPride85 View Post
Thinking he meant 1300 F?
Probably.

Iíve seen 1650F with my Dinan turbo on a higher boost map and stock downpipe. I hear it doesnít matter what it says, tho.
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      03-24-2019, 06:54 PM   #139
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by PackPride85 View Post
Thinking he meant 1300 F?
Probably.

I’ve seen 1650F with my Dinan turbo on a higher boost map and stock downpipe. I hear it doesn’t matter what it says, tho.
Not sure how bmw does it, but on my Mazda it use to calculate the egt temp from the cat temp which isn't the most accurate. A lot of guys would get a new manifold with an egt bung welded in for more accurate egt temp.
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      03-24-2019, 07:20 PM   #140
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Surprised more M2 guys dont look into DEI Cry02 FMIC sprayer...This was the end of the C02 bottle and even last summer if I sprayed with the DEI water sprayer first than sprayed it hard with c02, standing I got FMIC temps to -35*F...According to JB4 (Which I had w/ the BM3) As a back end flash, using alot of Co2 driving got IAT's down way under 100*F on the hottest days with the hardest . Combined ange of thhe turbo w/ 7" VRSF I/C and Open down pipe cutoff valve and higher octane through straight MS109 or even Boostane It moved the whole efficiency range of the turbo 2psi...I feel with an n20 tmap and the right weather i couldve run 22+ psi to redline without the dme having to pull timing...Ill get my c02 filled this week and do some logging with a frozen FMIC, and Open 3" exhaust dump vs exhaust shut and n c02 to prove the enormous power gain and disappearance of the tiny amount of lag...

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      03-24-2019, 07:48 PM   #141
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Random question but I may as well ask it here but what is the difference between 'cold start (cat heating)' and 'cold start RPM'?

Ideally, I'd like to keep the nice 'roar' you get when turning the car on but I want to prevent the 2-3 min process of annoyingly loud idle RPM. Is that possible to achieve with these settings?
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      03-25-2019, 08:17 AM   #142
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So I tried the new update at the track and on the highway. Please try 7th gear around 3000 rpm, something is wrong there... anyone have the same issue? Itís like I couldnít hold the boost nor gain speed and rpm wonít climb
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      03-25-2019, 10:50 AM   #143
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by nioh_lbbm2 View Post
Received an ACN91 specific tune from BM3 this morning. Hopefully I have some time this weekend to log and will report back. I can post a new thread on this if anyone else is interested
Def would be great to see the logs and feedback under a new thread.
Update from me here:
My Cali M2 BM3 ACN91 experience https://f87.bimmerpost.com/forums/sh....php?t=1597267
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      03-25-2019, 01:48 PM   #144
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Quote:
Originally Posted by Halim@HCP View Post
1300C is extremely high and doesn't make sense, that value is calculated and never above 800-900C when pushed very hard round a track.

Muffled sound? Maybe you should try to open the exhaust flaps in sport mode in the config menu for the OTS map.
I will check again on the unit. The muffled sound seems to be gone, but there's something wrong (at least for me) at 6th gear around 4000rpm and 7th gear around 3000rpm. I'll file a ticket and maybe try to datalog tomorrow when I have time.

Other than that, it performed pretty well at the track today (mostly 2nd~4th gears only on this particular small track). I did however get transmission warning and that's the 2nd time I've got it since 5.5. Could this be switching back to the standard M2 transmission instead of the GTS transmission coding?

I am running 93OCT Stage 2.
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      03-25-2019, 01:52 PM   #145
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Quote:
Originally Posted by Acexxon View Post
I will check again on the unit. The muffled sound seems to be gone, but there's something wrong (at least for me) at 6th gear around 4000rpm and 7th gear around 3000rpm. I'll file a ticket and maybe try to datalog tomorrow when I have time.

Other than that, it performed pretty well at the track today (mostly 2nd~4th gears only on this particular small track). I did however get transmission warning and that's the 2nd time I've got it since 5.5. Could this be switching back to the standard M2 transmission instead of the GTS transmission coding?

I am running 93OCT Stage 2.
Better open a ticket for support.
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      03-25-2019, 01:52 PM   #146
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Quote:
Originally Posted by NathObeaN View Post
Random question but I may as well ask it here but what is the difference between 'cold start (cat heating)' and 'cold start RPM'?

Ideally, I'd like to keep the nice 'roar' you get when turning the car on but I want to prevent the 2-3 min process of annoyingly loud idle RPM. Is that possible to achieve with these settings?
Catheating OFF disables coldstart completely, the other is still ON, but you pick the RPM target.
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      03-25-2019, 02:15 PM   #147
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Quote:
Originally Posted by Halim@HCP View Post
Quote:
Originally Posted by NathObeaN View Post
Random question but I may as well ask it here but what is the difference between 'cold start (cat heating)' and 'cold start RPM'?

Ideally, I'd like to keep the nice 'roar' you get when turning the car on but I want to prevent the 2-3 min process of annoyingly loud idle RPM. Is that possible to achieve with these settings?
Catheating OFF disables coldstart completely, the other is still ON, but you pick the RPM target.
Thanks Halim, so would I be right in saying I could get the initial startup 'roar' by leaving cold start on but reducing the aftermath noise by setting the RPM limit to 750 (for example). Or, would this prevent the engine reving past 750 upon startup and thus preventing the roar?

I would test myself but currently doing other diagnostics
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      03-25-2019, 02:18 PM   #148
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Quote:
Originally Posted by NathObeaN View Post
Quote:
Originally Posted by Halim@HCP View Post
Quote:
Originally Posted by NathObeaN View Post
Random question but I may as well ask it here but what is the difference between 'cold start (cat heating)' and 'cold start RPM'?

Ideally, I'd like to keep the nice 'roar' you get when turning the car on but I want to prevent the 2-3 min process of annoyingly loud idle RPM. Is that possible to achieve with these settings?
Catheating OFF disables coldstart completely, the other is still ON, but you pick the RPM target.
Thanks Halim, so would I be right in saying I could get the initial startup 'roar' by leaving cold start on but reducing the aftermath noise by setting the RPM limit to 750 (for example). Or, would this prevent the engine reving past 750 upon startup and thus preventing the roar?

I would test myself but currently doing other diagnostics
You get start up roar when the engine is warm and sitting for a bit similar to how it is on OEM. It won't roar on a cold start up to protect the engine.

Although in my experience it isn't as extreme as the oem loud roar which shoots up to like 1800rpm on the initial start up. It hits around 1500 I think. Still quite nice
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      03-25-2019, 03:06 PM   #149
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Quick questions about the 'Startup roar' as described in the release notes

Quote:
Version 5, March 30 2018:
More potent burbles for stage 2 OTS maps
Fixes missing burble for some cars, especially 6MT
GTS startup roar
Burble limited to specific modes
Is this something we can turn off as well?
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      03-25-2019, 07:57 PM   #150
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Quote:
Originally Posted by squixs View Post
Quick questions about the 'Startup roar' as described in the release notes

Quote:
Version 5, March 30 2018:
More potent burbles for stage 2 OTS maps
Fixes missing burble for some cars, especially 6MT
GTS startup roar
Burble limited to specific modes
Is this something we can turn off as well?
Some users experience roar being shutdown when setting catheating to OFF.
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      03-27-2019, 10:33 AM   #151
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Quote:
Originally Posted by Acexxon View Post
I will check again on the unit. The muffled sound seems to be gone, but there's something wrong (at least for me) at 6th gear around 4000rpm and 7th gear around 3000rpm. I'll file a ticket and maybe try to datalog tomorrow when I have time.

Other than that, it performed pretty well at the track today (mostly 2nd~4th gears only on this particular small track). I did however get transmission warning and that's the 2nd time I've got it since 5.5. Could this be switching back to the standard M2 transmission instead of the GTS transmission coding?

I am running 93OCT Stage 2.
Did this get resolved?
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      03-29-2019, 11:57 AM   #152
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Halim@HCP, is 5.7 non-(AGG) essentially 5.6? I actually prefer lesser burble than my current 5.5 but didn't get a chance to download 5.6 before it was taken down.
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      03-31-2019, 05:03 AM   #153
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Version 5.7 dyno'd on 93 octane.

Mods are: "Wagner EVO2 Competition intercooler, eventuri intake, Akra catless downpipe and full evolution exhaust system" - Written by owner.

Good power !

North of 400whp and 609wNM / 450wlbft of torque

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      04-06-2019, 07:04 PM   #154
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I agree w the other comments here. I updated from 5.5 -> 5.7 Definitely feel more torque. Traction control working harder. I'm in FL where it's hot and humid so I added a bottle of octane boost. Lucas booster so it probably went from 93 -> 95ish. Definitely pulled hard all the way up. I will have to bump the SPORT burbles up higher to match v5.5. The transmission feels smoother shifting. More like the ZF8 on a M240i and less like DCT in comfort mode. Car doesn't buck nearly as much over 1st and 2nd gear speed bumps. I might try the GTS trans tune and see how that goes. Overall I'm happy w the update. The PS4 275s can't really handle much more torque, but you guys don't worry about that and keep squeezing every last drop out of the stock turbo
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