BMW M140i LCI Shadow Edition

[Salt]

This is where multimaps shine, allows you to quickly switch between 4 different maps.
So if you are out of ethanol, change the map and you're good to go.

Being forced to run an ethanol mix all the time for a car which one uses as a daily is not ideal, especially if you're going on longer trips.

You'd think so...but my current scenario it doesn't really solve my problem. I also just want to say - I am no expert at any of this - but I am the type of person that likes to understand things so I am doing a lot of research online, talking to people and engaging with Bootmod3.

To mention - something I've learnt along the way - the Octane Bootmod3 (and overseas) refer to is not as I knew it. They refer to ours as RON - theirs as Octane. So, 91 Octane is equivelant to +- our 95RON pump fuel. Also, our fuel is not that great and octane is low. So to run on 95pump fuel alone, a 91 Octane map is recommended. They have an ACN91 map - this is specifically for Arizona, California, Nevada, Canada as their fuel quality is particularly bad. I am currenty on the ACN91 file - this was recommended for me by the Bootmod3 seller/initial installer. The ACN91 file accommodates more for poor fuel than the 91 Octane file would. Please show my some grace if I inaccurately state something - learning curve here.

If I want to add the TU Pump, I have to go Stage2 + for the ECU to use the better pump, but on the stage 2+ multim, there is no option for the ACN91 file. Based on logs I have done, running 95 pump on the ACN91 file - there were timing corrections - withing safe limits and not bad, but if I were to go to the 91 Octane file, I have to assume the timing corrections would increase - so not sure where that would leave me. Some say don't worry about the timing corrections - its what the ECU is there for - others say don't ignore it. I generally prefer to caution on the safer side of things. Right now, I am think stick to the stage 2 Multim file, run the ACN91 on just 95 pump fuel and change to the 91 Octane file when adding ethanol. I won't have the extra power from the TU pump but frmo what I understand, it will be safer. Maybe I am completely wrong. (worth mentioning, I am not building a race car - more power is fun to use safely, but I am not chasing numbers - reliability remains no 1).

Stage 2 Multimap offers:
Map1: ACN91 +19HP
Map2: 91 Octane +24HP
Map3: 93 Octane +26HP
Map4: OEM MPPK

Stage 2+ Multimap offers:
Map1: 91 Octane +29HP
Map2: 93 Octane +43HP
Map3: E30 Octane +47HP
Map4: E50 Octane +50HP

 

[Salt]

View attachment 32458

I never leave home without a bottle or two of ethanol lol.

I saw you in a couple of rock vids.The car is sounding beastly.Any plans to go to tarlton?

Hahahaha - Mr Prepared!

Thanks, appreciate. Not really, won't pass the opportunity to go though - I am not really building a race car - but I do enjoy some runs in a safer environment.

 

[2SCOOPS]

Car is looking sweet. Tasteful Mods. Just need some lows

 

[jayaynikkal]

Would an upgraded charge cooler be worth considering? While it’s separate from the engine cooling system, the B58’s stock unit tends to heat soak quickly, especially at Stage 2+. Keeping IATs under control can make a big difference.

 

[Salt]

Car is looking sweet. Tasteful Mods. Just need some lows

Thank you sir...ya its a nice thought but in reality it won't work for me. Car is a daily - driveways, parking lots etc. I need to be mindful as is.

 

[Salt]

Would an upgraded charge cooler be worth considering? While it’s separate from the engine cooling system, the B58’s stock unit tends to heat soak quickly, especially at Stage 2+. Keeping IATs under control can make a big difference.

Just installed a brand new OEM one - see last update post Also, not really a race car build so OEM is OK for me. But you are def correct - if I were pushing numbers and times if would def be something to consider!