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      05-18-2022, 09:03 PM   #1
eddymmm
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Bootmod3 Stage 2 93: Car doesn't feel any faster?

Hey guys,

I have a 2018 N55 M2. Car went in for some upgrades yesterday and was flashed with bootmod3 stage 2 93 octane. Its hard to tell really, but car feels about the same. Powerband is smoother but doesn't feel "faster". I have been told possible boost leak. Any ideas?

Following are my performance mods:
Fabspeed Sport Cat
Full Remus Exhaust
MAD intercooler
Evolution Racewerks chargepipe

Logs:

https://www.bootmod3.net/log?id=6285...0b437b0542b4d3

https://www.bootmod3.net/log?id=6285...0b43790f93131b

https://www.bootmod3.net/log?id=6285...90c61fd35b6cbb

https://www.bootmod3.net/log?id=6285...729b30f439bff5

Also a sidenote, anyone have issues with BM3 OBD disconnecting randomly after 10 mins and only way to get it to connect back is to restart phone/car?
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      05-19-2022, 08:10 AM   #2
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Yeah something is up Lol. You’d notice the extra power.
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      05-19-2022, 08:13 AM   #3
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Wow, yeah, you should really notice the boost coming on earlier, lasting longer, and the car pulling much harder up top.
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      05-19-2022, 11:28 AM   #4
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Did it feel fast before??
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      05-19-2022, 11:33 AM   #5
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Quote:
Originally Posted by Happy Motoring View Post
Did it feel fast before??
Quote:
Originally Posted by Happy Motoring View Post
Did it feel fast before??
It felt the same as it does now
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      05-19-2022, 02:08 PM   #6
ZM2
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Doesn’t look like a boost issue.

Looks like crappy timing due to super high IATs and/or poor fuel quality. What was the ambient temp for these logs? What fuel are you running?

I don’t have any BM3 disconnect issues. I’m running the latest app version and OBD to lightning cable hardwire.
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      05-19-2022, 02:12 PM   #7
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Quote:
Originally Posted by ZM2 View Post
Doesn't look like a boost issue.

Looks like crappy timing due to super high IATs and/or poor fuel quality. What was the ambient temp for these logs? What fuel are you running?

I don't have any BM3 disconnect issues. I'm running the latest app version and OBD to lightning cable hardwire.
Was about 80-85 degrees out. Running 93 Chevron fuel in Austin TX
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      05-19-2022, 02:17 PM   #8
ZM2
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Quote:
Originally Posted by eddymmm View Post
Was about 80-85 degrees out. Running 93 Chevron fuel in Austin TX
Well, the IC looks a little better than stock, but anytime IAT’s are over 105F you will have timing and power pulled, which is easy to do when ambient is 85F.

I would try some Shell 93 to see if you notice a difference, and then investigate further from there.
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      05-19-2022, 02:19 PM   #9
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by eddymmm View Post
Was about 80-85 degrees out. Running 93 Chevron fuel in Austin TX
Well, the IC looks a little better than stock, but anytime IAT’s are over 105F you will have timing and power pulled, which is easy to do when ambient is 85F.

I would try some Shell 93 to see if you notice a difference, and then investigate further from there.
Thank you will do. Boost being so far off the "target" doesnt ring any alarms for you?
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      05-19-2022, 02:20 PM   #10
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Quote:
Originally Posted by eddymmm View Post
Thank you will do. Boost being so far off the "target" doesnt ring any alarms for you?
Where do you see that it’s far off target?
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      05-19-2022, 02:23 PM   #11
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by eddymmm View Post
Thank you will do. Boost being so far off the "target" doesnt ring any alarms for you?
Where do you see that it’s far off target?
In the graphs. If you split the entire run into quarters. On the first 1/4 you can see boost (pre throttle) takes a bit to build up to boost (target). Or am i reading this wrong?
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      05-19-2022, 02:31 PM   #12
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Quote:
Originally Posted by eddymmm View Post
In the graphs. If you split the entire run into quarters. On the first 1/4 you can see boost (pre throttle) takes a bit to build up to boost (target). Or am i reading this wrong?
That’s going to be pretty normal if you’re going WOT in third gear below 1K RPM, which really isn’t very good for the engine anyways. I’d start any 3/4 gear pulls at no lower than 2500 RPM.

Do you have delayed power when you’re in upper RPMs and go WOT?
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      05-19-2022, 02:33 PM   #13
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by eddymmm View Post
In the graphs. If you split the entire run into quarters. On the first 1/4 you can see boost (pre throttle) takes a bit to build up to boost (target). Or am i reading this wrong?
That’s going to be pretty normal if you’re starting in third gear at 1K RPM, which really isn’t good for the engine anyways. I’d start any 3/4 gear pulls at no lower than 2500 RPM.

Do you have delayed power when you’re in upper RPMs and go WOT?
In the higher band it feels normal. Just doesnt feel like theres that oomph
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      05-19-2022, 02:43 PM   #14
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Quote:
Originally Posted by eddymmm View Post
In the higher band it feels normal. Just doesnt feel like theres that oomph
Starting WOT too low in a higher gear essentially causes the tune to pull back boost and timing, and then it’s just trying to catch up but your fuel quality doesn’t look great and your IATs are high = not great power.

Grab some Shell 93 and start your pull at 2500rpm and I bet all this goes away. Post up more logs when you have them.

Also, if you had an arbitrarily bad tank of gas (worse than this one) and started your WOT pulls under 1K in 3/4 gear, you have a decent risk of messing up your engine. Just not a good idea to do ever, really. F87source can expand.
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      05-19-2022, 02:46 PM   #15
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by eddymmm View Post
In the higher band it feels normal. Just doesnt feel like theres that oomph
Starting WOT too low in a higher gear essentially causes the tune to pull back boost and timing, and then it's just trying to catch up but your fuel quality doesn't look great and your IATs are high = not great power.

Grab some Shell 93 and start your pull at 2500rpm and I bet all this goes away. Post up more logs when you have them.

Also, if you had an arbitrarily bad tank of gas (worse than this one) and started your WOT pulls under 1K in 3/4 gear, you have a decent risk of messing up your engine. Just not a good idea to do ever, really. F87source can expand.
Appreciate it. Will get some 93 shell and post new logs when I get a chance
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      05-19-2022, 02:48 PM   #16
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by eddymmm View Post
In the higher band it feels normal. Just doesnt feel like theres that oomph
Starting WOT too low in a higher gear essentially causes the tune to pull back boost and timing, and then it's just trying to catch up but your fuel quality doesn't look great and your IATs are high = not great power.

Grab some Shell 93 and start your pull at 2500rpm and I bet all this goes away. Post up more logs when you have them.

Also, if you had an arbitrarily bad tank of gas (worse than this one) and started your WOT pulls under 1K in 3/4 gear, you have a decent risk of messing up your engine. Just not a good idea to do ever, really. F87source can expand.
Should i flash 91 octane and see if it makes a difference?
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      05-19-2022, 02:52 PM   #17
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Quote:
Originally Posted by eddymmm View Post
Should i flash 91 octane and see if it makes a difference?
I’m sure timing would be cleaner, but I still think if you get good fuel and start your pull at a higher RPM you’ll have good timing on the 93 map.

Also, remember to turn DSC off for the pull. Traction control will intro timing pull, as well.
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      05-19-2022, 02:53 PM   #18
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by eddymmm View Post
Should i flash 91 octane and see if it makes a difference?
I’m sure timing would be cleaner, but I still think if you get good fuel and start your pull at a higher RPM you’ll have good timing on the 93 map.

Also, remember to turn DSC off for the pull. Traction control will intro timing pull, as well.
Sport+ or hit the DSC off button or is there some secret way like holding it down or something
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      05-19-2022, 03:02 PM   #19
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Quote:
Originally Posted by eddymmm View Post
Sport+ or hit the DSC off button or is there some secret way like holding it down or something
I think that will be good enough in your case.

Full DSC off requires holding the button down for 10 seconds, but that’s usually only needed if it’s cold out and you have low grip (be careful!) or if you’re pushing a huge amount of torque, like my 540wftlbs on the Stg 2+ E30 map.
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      05-19-2022, 03:06 PM   #20
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by eddymmm View Post
Sport+ or hit the DSC off button or is there some secret way like holding it down or something
I think that will be good enough in your case.

Full DSC off requires holding the button down for 10 seconds, but that’s usually only needed if it’s cold out and you have low grip (be careful!) or if you’re pushing a huge amount of torque, like my 540wftlbs on the Stg 2+ E30 map.
Do i need to wait until my tank goes full empty to avoid mixing fuels?
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      05-19-2022, 03:07 PM   #21
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Quote:
Originally Posted by eddymmm View Post
Do i need to wait until my tank goes full empty to avoid mixing fuels?
Fuel mixing doesn’t matter, but if you want to truly test the fuel quality theory you need to burn down your current tank and then fill up with Shell 93.
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      05-26-2022, 06:02 PM   #22
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Have you tried to reflash it? To me this almost sounds like it didn’t flash properly and you’re still on a stock map.
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