[alpinweiss340]

Ok guys last log I post in a while (I hope) haha

https://www.bootmod3.net/log?id=5f1a...90c676ad312cd2

[N420i]

Originally Posted by Stu101

Did a new log same fuel no ethanol as of yet

https://www.bootmod3.net/log?id=5f19...729b205435e289

Seems to be looking better to me isn’t it there is still some room for improvement but another 20 odd miles of adaption and the timing seems to be a fair bit closer or am I reading it wrong?

Those are looking excellent. Minor corrections here and there, but 10º up top which is more or less what should be expected from the 91 map.

I have a long trip today were I'll burn through most of the second tank using the same map to let it adapt. I'll try to log when I'm close to my destination and see how it's looking. 93 map on 93oct Shell gas.

I've been doing some research and apparently Shell is the best one can get in this country. Even with the corrections I have noticed the 93 map seems to pull noticeably harder than the 91.

[Purcel_Andorra]

Originally Posted by Purcel_Andorra

Thank you.

I asked because I understand that to know if there is too much pressure on the turbo stock are one of the BOOSTs parameters
I have read that with MHD stage2+ HPFP are around 21 - 22 psi and in some places I have read that only be sure until 20 psi
I am making that question to BMW but I think won't have answer...

Tomorrow show some logs with stage 2+

Hi,
There are 3 logs.

First MHD stage2+ HPFP 102 RON map with e30 fuel
https://datazap.me/u/jspbmwm140i/log...og=0&data=4-24

Second MHD stage2+ HPFP e30 map
https://datazap.me/u/jspbmwm140i/log...og=1&data=4-24

Third MHD stage2+ HPFP e30 map
https://datazap.me/u/jspbmwm140i/log...og=2&data=4-23

I think all is ok. Only I am worried about the boost (turbo health)

Thanks!!!

[OzBMR]

Originally Posted by Purcel_Andorra

Hi,
There are 3 logs.

First MHD stage2+ HPFP 102 RON map with e30 fuel
https://datazap.me/u/jspbmwm140i/log...og=0&data=4-24

Second MHD stage2+ HPFP e30 map
https://datazap.me/u/jspbmwm140i/log...og=1&data=4-24

Third MHD stage2+ HPFP e30 map
https://datazap.me/u/jspbmwm140i/log...og=2&data=4-23

I think all is ok. Only I am worried about the boost (turbo health)

Thanks!!!

Looks about right.

Interesting that you tested the Stage 2+HPFP 102_95 map with E30. Thanks for sharing.

Do you have Dragy? Any 100 - 200 km/h times?

[IMS-340C]

OzBMR Mate but why do you think the turbo not able to achieve boost target ?

[theone1973]

Originally Posted by IMS-340MP

OzBMR Mate but why do you think the turbo not able to achieve boost target ?

yea that looks strange...

[Eldotbe]

Hi guys, currently running mhd stage 2. Looking to buy the jb4 to run with mhd so would be doing a back end flash. I’ve downloaded the maps from the thread on n54tech. What map would I use for just standard 93oct fuel?. Says to use the ‘RACE’ one for just 93 but there’s multiple maps that say race. I’m looking To go WMI very soon. Is jb4 and mhd thr best route to go down?

[Purcel_Andorra]

Originally Posted by OzBMR

Looks about right.

Interesting that you tested the Stage 2+HPFP 102_95 map with E30. Thanks for sharing.

Do you have Dragy? Any 100 - 200 km/h times?

Sorry. I do not have any dragy

With e30 fuel the map stage2+ HPFP e30 always gives more power that the map 102_95. But maybe the sensations are heavyest with the 102_95. For me is better e30 in that map

[Purcel_Andorra]

Originally Posted by IMS-340MP

OzBMR Mate but why do you think the turbo not able to achieve boost target ?

I have read next information https://bmwtuning.co/bmw-b58-stock-turbo-max-boost/

There said more than 20 psi is dangerous. With stage2+ the boost is between 21 and 22.

[340iNL]

Originally Posted by Stu101

Did a new log same fuel no ethanol as of yet

https://www.bootmod3.net/log?id=5f19...729b205435e289

Seems to be looking better to me isn’t it there is still some room for improvement but another 20 odd miles of adaption and the timing seems to be a fair bit closer or am I reading it wrong?

Can you share the e85 logs, compared to previous tanks without e85 with same tune?

[Sgm123]

Not put any in yet I’m afraid. Got a bit concerned with a few of the posts so order an ethanol test kit so I know exactly what I am putting in. Was pretty happy with that log with just the fuel to be honest much better than before.

Kit will likely be a few weeks as coming for
USA but will post one I have the logs I’ll do a 93 tune before and after.

[OzBMR]

Originally Posted by IMS-340MP

OzBMR Mate but why do you think the turbo not able to achieve boost target ?

I think the important things you need to look at are load actual and torque act. clutch Nm more so than boost target and actual boost level.

Of course ignition timing is also important and the timing in the logs looks good indicating correct fuel for the tune.

If you compare Purcel_Andorra logs to mine for the same map at same RPM points the values are almost identical for load actual and torque act. clutch Nm and indicate the car is achieving the required torque as per the tune.

[OzBMR]

Originally Posted by Eldotbe

Hi guys, currently running mhd stage 2. Looking to buy the jb4 to run with mhd so would be doing a back end flash. I’ve downloaded the maps from the thread on n54tech. What map would I use for just standard 93oct fuel?. Says to use the ‘RACE’ one for just 93 but there’s multiple maps that say race. I’m looking To go WMI very soon. Is jb4 and mhd thr best route to go down?

Have you looked at the Snow Performance injection kits?

If you are determined to use meth consider only using JB4 as the meth controller and forget about the JB4 BEF maps.

[OzBMR]

Originally Posted by Purcel_Andorra

I have read next information https://bmwtuning.co/bmw-b58-stock-turbo-max-boost/

There said more than 20 psi is dangerous. With stage2+ the boost is between 21 and 22.

There's a few things in that linked piece that aren't right.

The stock ECU tune for M140i and M240i sees maximum boost of typically 17 - 18 PSI tapering to 12 PSI by redline.

Fuel isn't limiting boost and hasn't for quite a while since DME flashing.

If you are using the car for circuit racing where you are WOT lap after lap, using the Stage 2+HPFP tunes will likely result a shorter turbo life, but for most of us for street use I think the turbo will hold up OK.

[IMS-340C]

Yeah definitely I looked at the other parameters and they are looking good, just wondering why boost/load target not achieved ? I wonder if the turbo is maxed out or is it another reason as running a maxed out turbo is not healthy.

Originally Posted by OzBMR

I think the important things you need to look at are load actual and torque act. clutch Nm more so than boost target and actual boost level.

Of course ignition timing is also important and the timing in the logs looks good indicating correct fuel for the tune.

If you compare Purcel_Andorra logs to mine for the same map at same RPM points the values are almost identical for load actual and torque act. clutch Nm and indicate the car is achieving the required torque as per the tune.

[Purcel_Andorra]

Originally Posted by IMS-340MP

Yeah definitely I looked at the other parameters and they are looking good, just wondering why boost/load target not achieved ? I wonder if the turbo is maxed out or is it another reason as running a maxed out turbo is not healthy.

Yes. I wonder if the turbo is maxed out too. There is the reason I am worried in this case

[AleksanderSuave]

Originally Posted by OzBMR

Bit strange, this is similar their standard Stage 2 E30 map with 15 PSI at 3200 RPM, 16 PSI at 4000 RPM, 17 PSI by 4500 RPM and then sort of 18 - 19 thereafter. The only difference is AFR, being lower due to having the HPFP.

In the Virtual Dyno below I've overlayed one of my logs from their standard Stage 2 E30, this was with stock downpipe, pre-CG Precision DS-1.

There is a lot more torque on offer with the standard Stage 2 HPFP OTS map.

Realized Ive never reset adaptations previously, so did so today.

had about a quarter tank left of over of fuel, so I added about 7 gallons of E30, and topped off the rest with 93.

reflashed stage 2+ map, and reset adaptations.

also installed the new NGK plugs gapped at .022

https://datazap.me/u/aleksandersuave...og=0&data=3-22

Oddly enough..the plugs in my m240ix were already NGK 94201..identical plug and part number. Wasnt expecting that to be the case.

What are your thoughts on the new log sir?

Probably going to get the spool fuel analyzer soon.

[OzBMR]

Originally Posted by AleksanderSuave

Realized Ive never reset adaptations previously, so did so today.

had about a quarter tank left of over of fuel, so I added about 7 gallons of E30, and topped off the rest with 93.

reflashed stage 2+ map, and reset adaptations.

also installed the new NGK plugs gapped at .022

https://datazap.me/u/aleksandersuave...og=0&data=3-22

Oddly enough..the plugs in my m240ix were already NGK 94201..identical plug and part number. Wasnt expecting that to be the case.

What are your thoughts on the new log sir?

Probably going to get the spool fuel analyzer soon.

Similar torque to your previous Stage 2 HPFP E30 logs, bit less peak power due to quite high IAT, lower ambient pressure and timing not quite as advanced. Overall, OK though.

[AleksanderSuave]

Originally Posted by OzBMR

Similar torque to your previous Stage 2 HPFP E30 logs, bit less peak power due to quite high IAT, lower ambient pressure and timing not quite as advanced. Overall, OK though.

I was expecting magic.

Just curious..did you also already have NGK 94201 plugs in your car?

I was expecting to see something else stock.

[M140_BCS]

Originally Posted by AleksanderSuave

I was expecting magic.

Just curious..did you also already have NGK 94201 plugs in your car?

I was expecting to see something else stock.

BMW Main Dealer changed my plugs at 40,000 miles Jan 2018.

When replacing them a few months ago at 50,000 miles I pulled out NGK 94201

[not1337]

Trying to figure out why my timing looks so bad. BM3 Stg 2 catless dp, just changed plugs and gapped to 0.022.

Log #1:https://www.bootmod3.net/log?id=5f1e...729b753dbae823
Log #2: https://www.bootmod3.net/log?id=5f1e...0b434801a15eef

Bad fuel or something else?

[OzBMR]

Originally Posted by AleksanderSuave

I was expecting magic.

Just curious..did you also already have NGK 94201 plugs in your car?

I was expecting to see something else stock.

My car was built in 2016 and had Champion plugs from the factory