[Joeirl92]

Originally Posted by designatedposter

you can most certainly mix fuel to bring up the average octane to a level that is adequate for the respective tune, but in my opinion, the difference between the tunes for 91 octane and 93 is not noticeable. you can conduct your own test and determine it it's worth the effort and cost.

let's see your log as-is right now to determine if your fuel is even good enough for the 91 tune, as most of the time, it's not and could potentially benefit from going to the acn91 tune.

another option is installing a water meth system and you can even daily run the race tune. again, in my opinion, its not noticeable going from 91 to race tune.

that stutter could be your high pressure fuel pump, or clutch slipping.

https://www.bootmod3.net/log?id=5f2c...729b3b4ea27f67

Here is my log! I honestly don't know what I'm looking at but if mixing fuel isn't a bad thing I'll probably go for the e30 route as I've been told it actually sees a power gain. I need to study up on how to read these things but in the mean time I posted it here. Thanks for looking through it when you get the time!

[thejeremyman9]

Originally Posted by Joeirl92

https://www.bootmod3.net/log?id=5f2c...729b3b4ea27f67

Here is my Log. For some reason I didn't experience any stuttering in 3rd or 4th gear. The only change made since I last experienced it was my midpipe and axle back install. So strange.

I'm definitely interested in E85 it's just my car is probably only driven 100 miles a week max. It sits several days at a time. Would you still recommend??

Thanks for taking the time to check this out for me!

Timing is pretty awful in that log man... like only 1-2 degrees up top and negative on some cylinders throughout the pull. You are losing a ton of power from the timing pulls. How many miles on plugs and what brand/gap?

If timing is consistently that bad you need to either run the ACN map or get more octane in your fuel.

Yes, i still recommend it. I am down to driving my car once a week now as well, sometimes only like 20 miles per week. Its fine with E30.

Read this recent thread for E85: https://f30.bimmerpost.com/forums/sh....php?t=1742607

Specifically my post here: https://f30.bimmerpost.com/forums/sh...91&postcount=8

[Joeirl92]

Originally Posted by thejeremyman9

Timing is pretty awful in that log man... like only 1-2 degrees up top and negative on some cylinders throughout the pull. You are losing a ton of power from the timing pulls. How many miles on plugs and what brand/gap?

If timing is consistently that bad you need to either run the ACN map or get more octane in your fuel.

Yes, i still recommend it. I am down to driving my car once a week now as well, sometimes only like 20 miles per week. Its fine with E30.

Read this recent thread for E85: https://f30.bimmerpost.com/forums/sh....php?t=1742607

Specifically my post here: https://f30.bimmerpost.com/forums/sh...38;postcount=8

I'm on stock plugs. 2014 with 45k miles! I thought that was early for replacements but I guess I should swap them out for some gapped plugs. Any suggestions??

And I'll go on that ACN91 map then in the mean time. Unless you suggest I just go e30? . I'm bummed but that's why I'm here. Thanks for letting me know man. Much appreciated

[thejeremyman9]

Originally Posted by Joeirl92

I'm on stock plugs. 2014 with 45k miles! I thought that was early for replacements but I guess I should swap them out for some gapped plugs. Any suggestions??

And I'll go on that ACN91 map then in the mean time. Unless you suggest I just go e30? . I'm bummed but that's why I'm here. Thanks for letting me know man. Much appreciated

You can run the ACN91 map if you dont want to have to mix E85... but if it were me there is no doubt i would run do E85 mix and run the E30 map. It will make significantly more power than the ACN map even if you have good timing on the ACN one (which might not even happen). I ran the 91 map on MHD for a while before going to the E20 map (there is no E30 for EWG on MHD) and I will never go back.

For spark plugs, i changed mine at 45k to a set of new OEM Bosch. Read here: https://f30.bimmerpost.com/forums/sh....php?t=1709198

[Joeirl92]

Originally Posted by thejeremyman9

You can run the ACN91 map if you dont want to have to mix E85... but if it were me there is no doubt i would run do E85 mix and run the E30 map. It will make significantly more power than the ACN map even if you have good timing on the ACN one (which might not even happen). I ran the 91 map on MHD for a while before going to the E20 map (there is no E30 for EWG on MHD) and I will never go back.

For spark plugs, i changed mine at 45k to a set of new OEM Bosch. Read here: https://f30.bimmerpost.com/forums/sh....php?t=1709198

Yeah I definitely need new plugs man. Ran the e30 map and got horrible stuttering in third and 4th and high RPMS.

Second gear pull felt amazing though. A huge difference in power for sure! I read into your post so i'll be getting on those plugs.

[thejeremyman9]

Originally Posted by Joeirl92

Yeah I definitely need new plugs man. Ran the e30 map and got horrible stuttering in third and 4th and high RPMS.

Second gear pull felt amazing though. A huge difference in power for sure! I read into your post so i'll be getting on those plugs.

Get some logs, before and after the plug change.

Also, when you pull the plugs, i would recommend checking the gap and condition of the ones coming out. Good to know if something was out of spec there.

[Silverlining_m2]

Hey all! And thejeremyman9 !!

Added a gallon of e85 to my shell 93oct to see if it would help with the vibration I was feeling under immediate acceleration. I honestly think it helped.

Would anyone mind checking these logs for me? I see occasional timing corrections in cylinders 3 and 5, and the iat's get into the high 40's at the end of the 4th gear pull. It's 19° here, so thats about 30° difference. I'm not great at this, but it looks decent for stock plugs and coils? Let me know what you think if you have the time. And Merry Christmas to all the ptf/bm3 family

https://www.bootmod3.net/log?id=5fe4...729b3fe468e86f

https://www.bootmod3.net/log?id=5fe4...90c67c6b36626e

[n55david]

Originally Posted by f32spaceship

Hey all! And thejeremyman9 !!

Added a gallon of e85 to my shell 93oct to see if it would help with the vibration I was feeling under immediate acceleration. I honestly think it helped.

Would anyone mind checking these logs for me? I see occasional timing corrections in cylinders 3 and 5, and the iat's get into the high 40's at the end of the 4th gear pull. It's 19° here, so thats about 30° difference. I'm not great at this, but it looks decent for stock plugs and coils? Let me know what you think if you have the time. And Merry Christmas to all the ptf/bm3 family

https://www.bootmod3.net/log?id=5fe4...729b3fe468e86f

https://www.bootmod3.net/log?id=5fe4...90c67c6b36626e

Our fuel here is trash right now. we are in the "winter blend" season. I'm not surprised that even with a little 85 it wasn't enough. I would try again with maybe 1.1 or 1.2 gallons.

Edit: Also I have yet to see a station test out at true e85. Meijer seems to always be e80, and same with the marathons I've tested. I've never tested anything else.

[Silverlining_m2]

Originally Posted by Phantom10R

Our fuel here is trash right now. we are in the "winter blend" season. I'm not surprised that even with a little 85 it wasn't enough. I would try again with maybe 1.1 or 1.2 gallons.

Edit: Also I have yet to see a station test out at true e85. Meijer seems to always be e80, and same with the marathons I've tested. I've never tested anything else.

I'll definitely try 1.5 gallons next tank. Just followed your insta too.

[n55david]

Originally Posted by f32spaceship

I'll definitely try 1.5 gallons next tank. Just followed your insta too.

yeah, I noticed! bro... that ass though. that Sony is treating you well!

[thejeremyman9]

Originally Posted by f32spaceship

Hey all! And thejeremyman9 !!

Added a gallon of e85 to my shell 93oct to see if it would help with the vibration I was feeling under immediate acceleration. I honestly think it helped.

Would anyone mind checking these logs for me? I see occasional timing corrections in cylinders 3 and 5, and the iat's get into the high 40's at the end of the 4th gear pull. It's 19° here, so thats about 30° difference. I'm not great at this, but it looks decent for stock plugs and coils? Let me know what you think if you have the time. And Merry Christmas to all the ptf/bm3 family

https://www.bootmod3.net/log?id=5fe4...729b3fe468e86f

https://www.bootmod3.net/log?id=5fe4...90c67c6b36626e

I just took a look at this log: https://www.bootmod3.net/log?id=5fe4...90c67c6b36626e

Timing looks completely fine honestly. A few small corrections on one or two cylinders is pretty much unavoidable and this looks much better than most peoples logs on the 93 map.

The other thing that stands out is you have multiple throttle cosures back to back, down to ~40%. Not sure why. Don't typically see that in 93 map logs i dont think. Aside from that looks fine though. I wouldnt worry that much about the IAT, although you do have more IAT rise throughout the pull than i do. Which IC are you running?

[Silverlining_m2]

Originally Posted by thejeremyman9

I just took a look at this log: https://www.bootmod3.net/log?id=5fe4...90c67c6b36626e

Timing looks completely fine honestly. A few small corrections on one or two cylinders is pretty much unavoidable and this looks much better than most peoples logs on the 93 map.

The other thing that stands out is you have multiple throttle cosures back to back, down to ~40%. Not sure why. Don't typically see that in 93 map logs i dont think. Aside from that looks fine though. I wouldnt worry that much about the IAT, although you do have more IAT rise throughout the pull than i do. Which IC are you running?

The same 5" vrsf you are I believe! I did a couple logs yesterday with literally zero timing corrections but wasn't looking at throttle closures. What causes them? Just added boost deviation to my future logs. Maybe I'm over boosting?

edit:
The throttle closures DO seem to be when my actual boost is over target? Am I reading that correctly?

[Munchi435i]

Originally Posted by f32spaceship

The same 5" vrsf you are I believe! I did a couple logs yesterday with literally zero timing corrections but wasn't looking at throttle closures. What causes them? Just added boost deviation to my future logs. Maybe I'm over boosting?

edit:
The throttle closures DO seem to be when my actual boost is over target? Am I reading that correctly?

Yes throttle closers mostly occur when overboosting and is perfectly normal.

[Silverlining_m2]

Originally Posted by Munchi435i

Yes throttle closers mostly occur when overboosting and is perfectly normal.

Awesome thanks for the clarification. I ran 2 logs yesterday that still have them, but literally zero timing corrections! Running great and feeling like a million bucks

[thejeremyman9]

Originally Posted by f32spaceship

Awesome thanks for the clarification. I ran 2 logs yesterday that still have them, but literally zero timing corrections! Running great and feeling like a million bucks

Yeah i didnt realize you were overboosting at those times, the throttle closure is indeed a normal response to that. The question then becomes, why the strange boost control? Other people's 93 logs dont seem to do that. Its not a huge issue or something, just a little atypical from what ive seen from other logs on here.

[ericlr1225]

For who flashed V7.1 N55 map Why my BM3 shows the latest version is v5.9. Thanks

[n55david]

Originally Posted by ericlr1225

For who flashed V7.1 N55 map Why my BM3 shows the latest version is v5.9. Thanks

If you have a 5.9 version it's because you have an m2

This forum is for 335/435 cars man

They are different map versions...I literally have every single bm3 ots map, 😀

[ericlr1225]

Originally Posted by n55david

If you have a 5.9 version it's because you have an m2

This forum is for 335/435 cars man

They are different map versions...I literally have every single bm3 ots map, 😀

Got it Thank you~

[n55david]

Originally Posted by ericlr1225

Got it Thank you~

No problem!