[thejeremyman9]

Originally Posted by HH1815

Been busy and haven't been able to share this yet (or even go on the forums) but man 7.1 feels refined almost stock. definitely feels better at lower rpm.

Anyone care to chime in?
2nd gear pull 2500-7k

https://www.bootmod3.net/log?id=5eb8...0b430ed5ce443f

What the heck happens at 6700 rpm? Boost target drops, throttle closes, etc? You had to feel that in the car.

I assume you dont have a IC because IATs rise quit a bit.

Timing also isnt the cleanest.

[HH1815]

Originally Posted by thejeremyman9

What the heck happens at 6700 rpm? Boost target drops, throttle closes, etc? You had to feel that in the car.

I assume you dont have a IC because IATs rise quit a bit.

Timing also isnt the cleanest.

yeah no IC. I felt the car slightly get sluggish but I figured it was just the boost tapering off. Hmmm. Anyone know Why that would happen.

Ill try another log and see what happens.



Edit:
did a 11pm run on the highway. this time throttle began closing at 6900.
https://www.bootmod3.net/log?id=5ec3...90c610abc87714

I saw the iat's going up around 7k on the 2nd and 3rd pulls i did. im guessing the throttle closes and pulls timing bc of the 125 degree iat?!

[johnung]

Originally Posted by thejeremyman9

Yes, BM3 does. I think they still list it as beta, but it is available. Its generally regarded as not being as refined as XHP, but it should work to remove the torque limits.

BootMod3 free automatic transmission tune was released on N55 last summer I believe on version 6.4. It's up to v7.1 now. Works great! I enjoy the response in Sport Mode

[thejeremyman9]

Originally Posted by johnung

BootMod3 free automatic transmission tune was released on N55 last summer I believe on version 6.4. It's up to v7.1 now. Works great! I enjoy the response in Sport Mode

Yeah i know, the post of mine you quoted was quite old lol...

[johnung]

Originally Posted by thejeremyman9

Yeah i know, the post of mine you quoted was quite old lol...

Oops! Sorry, trying to do too many things at once.

[Sam135i]

Hi folks

Just wondering if anyone has found a solution to throttle closures and overboost.My logs are slightly different in that my timing drops to negative values and so does the rpm.Rpm will drop from 4.3k down to 4.1k and then everything starts picking up again.i have been chatting to PTF over the last few weeks and the last email I got from them today was that my maf is maxing out and it could be an issue with the maf.on the e30 v7.1 file my boost target is also low max 12psi.My mods are listed below:

Hybrid turbo
Downpipe
Lpfp upgrade
Intercooler
N20 tmap
Water meth
Gfb +

Also 8 sp auto

https://www.bootmod3.net/log?id=5efc...0b4368f54bfaa5

That being said I have logs with TC completely there are no throttle closures but boost on the e30 file is still only targeting 12/13 psi

Any help would be really appreciated I have been struggling with this for months.

[thejeremyman9]

Originally Posted by Sam135i

Hi folks

Just wondering if anyone has found a solution to throttle closures and overboost.My logs are slightly different in that my timing drops to negative values and so does the rpm.Rpm will drop from 4.3k down to 4.1k and then everything starts picking up again.i have been chatting to PTF over the last few weeks and the last email I got from them today was that my maf is maxing out and it could be an issue with the maf.on the e30 v7.1 file my boost target is also low max 12psi.My mods are listed below:

Hybrid turbo
Downpipe
Lpfp upgrade
Intercooler
N20 tmap
Water meth
Gfb +

Also 8 sp auto

https://www.bootmod3.net/log?id=5efc...0b4368f54bfaa5

That being said I have logs with TC completely there are no throttle closures but boost on the e30 file is still only targeting 12/13 psi

Any help would be really appreciated I have been struggling with this for months.

MAF: What do you MAF readings look like on a different map or stock tune? Something is definitely wrong - do you have any MAF error codes? I would suspect either a wiring issue or a issue with the MAF itself; you should not be at 111.2 lb/min with no change.

Ambeint pressure: It looks like you are at relatively high altitude. That could be affecting boost, but should not affect target.

Coolant/oil temp: It looks like you didnt even let the car warm up before taking this log. Coolant is only 150F and oil is only 140F. Way to cold to be doing WOT pulls IMO. Oil should be 210F. You should also check transmission temp, its not in your logs.

RPM: Something weird happened with RPM - did it feel like your transmission was slipping? Are you running BM3 or XHP trans flash? It looks exactly like clutch slip on a manual car. Given how cold your oil and coolant were, i suspect the trans was very cold still, maybe 110F or so. Have you logged with the car fully warmed up?

Throttle - the throttle closure and boost target dip is almost certainly because of the RPM spike; the DME likely realized something was not right and went into protection mode.

No idea why your boost target is so low, maybe try a 91 or 93 stage 2 map? But i think you have other concerns you need to address first.

Edit: also read this for more info on reading logs: https://f30.bimmerpost.com/forums/sh....php?t=1732327

[woot335woot]

I flashed from 7.0 to 7.1 last night. I have a BMS intake and VRSF cattless DP.

On 7.0 I was getting great turbo/diverter noises at moderate throttle and low RPM.

After flashing to 7.1 I get no turbo/diverter noises unless I go hard on the throttle and hit 3k rpm or more. Power delivery and smoothness appear to be unchanged.

Anyone else experience this?

[Sam135i]

Apologies perhaps that was not the best log to send,on that log I disconnected the maf to test if there was any difference.And you right i did just start the car then go log straight away.perhaps the below log will be more relevant:

https://www.bootmod3.net/log?id=5ef4a30dd10b43562e109455

I am indeed at altitude but previous was hitting boost target with this map of 17psi

[thejeremyman9]

Originally Posted by Sam135i

Apologies perhaps that was not the best log to send,on that log I disconnected the maf to test if there was any difference.And you right i did just start the car then go log straight away.perhaps the below log will be more relevant:

https://www.bootmod3.net/log?id=5ef4...0b43562e109455

I am indeed at altitude but previous was hitting boost target with this map of 17psi

Confused by this log... why does everything become constan halfway through? Was there an issue with the logging?

For the MAF, i have no idea why yours would max at 35.7; i have never seen that.

The boost target also doesnt make sense really, have you tried the 91 or 93 stage 2 tune? Or even stage 1, to see if the target changes?

[Sam135i]

The log just stopped for some reason perhaps this one is better
https://www.bootmod3.net/log?id=5ef3...90c67297d8c824

[thejeremyman9]

Originally Posted by Sam135i

The log just stopped for some reason perhaps this one is better
https://www.bootmod3.net/log?id=5ef3...90c67297d8c824

Yeah at least the values in this one make sense.

Timing looks pretty good and MAF goes up as normal. Boost control is decent but a bit wavy near the end of the pull, along with WGDC.

The strange thing is RPM... were you hitting bumps in the road? There's a big jump around 4k and then again around 6500 and a bunch of small ones inbetween. You had a throttle closure from the one around 4k - was DSC fully off? Looks like TC kicked in.

[Sam135i]

Hi yes Tc is coming on.....that being said I never had this issue when logging in sport + on the previous versions of the map.A Leo it doesn’t do it with jb4 and higher boost on sports+...it is also closing throttle on the dyno

[thejeremyman9]

Originally Posted by Sam135i

Hi yes Tc is coming on.....that being said I never had this issue when logging in sport + on the previous versions of the map.A Leo it doesn’t do it with jb4 and higher boost on sports+...it is also closing throttle on the dyno

You need to try logging with DSC fully off (hold the buttom for 5-10 seconds until you get the message). That may or may not fixed the issues on the dyno, that could be something else, as i believe you can go into "dyno mode" - i think that was covered in a Kies video.

[Randy Johnson]

Originally Posted by woot335woot

I flashed from 7.0 to 7.1 last night. I have a BMS intake and VRSF cattless DP.

On 7.0 I was getting great turbo/diverter noises at moderate throttle and low RPM.

After flashing to 7.1 I get no turbo/diverter noises unless I go hard on the throttle and hit 3k rpm or more. Power delivery and smoothness appear to be unchanged.

Anyone else experience this?

I have not upgraded to 7.1 yet but have reflashed several times from stock to 6.x to 7.0. I just reflashed back to 7.0 to try and see if the tune was causing an issue. It didn't seem to be the tune. Anyway the latest flash back to 7.0 seems to have caused a lower idle and the car is a little rougher. It seems to be idling at 650. A tap of the gas smooths it out. I will try the 7.1 flash soon and see how it feels. My only worry is if they keep pushing the boost up something is going to break.

[Minez]

Randy, I had some odd power issues when I went to 7.0, but I ran some numbers with Dragy anyway. 7.0 just felt slower right out of the hoop. I do have the trans flash (1.0) from last year loaded. When I ran 7.0, I put up 0-60 in 4.2ish three times in a row. Left it on for a bit as that was a little slower than 6.4 but thought I'd wait and see. Then 7.1 came out, loaded it, ran around with it for a month and I had odd sluggishness from time to time, just didn't feel right. I was around 4.1 average. After months of not using 6.4, I loaded it back up and ran 3 back to back 3.9. I couldn't believe how much better it felt. Sometimes "better" is the enemy of good enough. If you don't have it downloaded, the guys at PTF will probably let you download it.

[Insane435]

Originally Posted by Minez

Randy, I had some odd power issues when I went to 7.0, but I ran some numbers with Dragy anyway. 7.0 just felt slower right out of the hoop. I do have the trans flash (1.0) from last year loaded. When I ran 7.0, I put up 0-60 in 4.2ish three times in a row. Left it on for a bit as that was a little slower than 6.4 but thought I'd wait and see. Then 7.1 came out, loaded it, ran around with it for a month and I had odd sluggishness from time to time, just didn't feel right. I was around 4.1 average. After months of not using 6.4, I loaded it back up and ran 3 back to back 3.9. I couldn't believe how much better it felt. Sometimes "better" is the enemy of good enough. If you don't have it downloaded, the guys at PTF will probably let you download it.

Idk to me 6.4 didnt feel as good. Throttle response and low end torque way better imo on 7.1.

[Minez]

I think that response is why there are quite a few tuners out there; some better than others. OTS does 90% well enough, but each car can get that 10% very specific tune to their particular engine.

[Joeirl92]

Hey guys. The community here seems great so I finally decided to pull the trigger on creating an account!
Warranty was out as of July so I decided to go crazy lol.

Currently running a Stage 2 91 OCT BM3 435i 6MT STOCK plugs
Mods: Wagner EVO2 Comp intercooler, CTS Turbo intake, Evoracewerks chargepipe, CTS Turbo catless DP, AWE midpipe and axleback

I have no experience with tuning, therefore I have a couple of questions regarding BM3. This is my first car that I'm tuning and I did these mods all in a span of a week, so I'm literally brand new. Any insight would be dope!

I live in CA with shit 91oct, but I live right by a station with 100oct. What do you guys think about mixing (ie 4gal of 100 and 11gal 91) to get that stage 2 93 tune? Any pros and/or cons in mixing octane?

I also experienced a slight stutter when flooring throttle in 4th at around 3.5k RPM. I'm going to need to provide some logs for you guys to help me there beause I know that can mean a ton of things. i'll read up on how to get those logs and get back if anyone is down to point me in the right direction to a possible problem.

Appreciate y'all and I'm stoked to be here!

[designatedposter]

Originally Posted by Joeirl92

Hey guys. The community here seems great so I finally decided to pull the trigger on creating an account!
Warranty was out as of July so I decided to go crazy lol.

Currently running a Stage 2 91 OCT BM3 435i 6MT STOCK plugs
Mods: Wagner EVO2 Comp intercooler, CTS Turbo intake, Evoracewerks chargepipe, CTS Turbo catless DP, AWE midpipe and axleback

I have no experience with tuning, therefore I have a couple of questions regarding BM3. This is my first car that I'm tuning and I did these mods all in a span of a week, so I'm literally brand new. Any insight would be dope!

I live in CA with shit 91oct, but I live right by a station with 100oct. What do you guys think about mixing (ie 4gal of 100 and 11gal 91) to get that stage 2 93 tune? Any pros and/or cons in mixing octane?

I also experienced a slight stutter when flooring throttle in 4th at around 3.5k RPM. I'm going to need to provide some logs for you guys to help me there beause I know that can mean a ton of things. i'll read up on how to get those logs and get back if anyone is down to point me in the right direction to a possible problem.

Appreciate y'all and I'm stoked to be here!

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.

[thejeremyman9]

Originally Posted by Joeirl92

Hey guys. The community here seems great so I finally decided to pull the trigger on creating an account!
Warranty was out as of July so I decided to go crazy lol.

Currently running a Stage 2 91 OCT BM3 435i 6MT STOCK plugs
Mods: Wagner EVO2 Comp intercooler, CTS Turbo intake, Evoracewerks chargepipe, CTS Turbo catless DP, AWE midpipe and axleback

I have no experience with tuning, therefore I have a couple of questions regarding BM3. This is my first car that I'm tuning and I did these mods all in a span of a week, so I'm literally brand new. Any insight would be dope!

I live in CA with shit 91oct, but I live right by a station with 100oct. What do you guys think about mixing (ie 4gal of 100 and 11gal 91) to get that stage 2 93 tune? Any pros and/or cons in mixing octane?

I also experienced a slight stutter when flooring throttle in 4th at around 3.5k RPM. I'm going to need to provide some logs for you guys to help me there beause I know that can mean a ton of things. i'll read up on how to get those logs and get back if anyone is down to point me in the right direction to a possible problem.

Appreciate y'all and I'm stoked to be here!

Read here to learn how to collect and read datalogs: https://f30.bimmerpost.com/forums/sh....php?t=1732327

Yes, our 91 sucks; i live in SoCal also. If you are willing to go the fuel mix route, i highly suggest you consider E85. You basically have two options - mix a few gallons in with 91 and run the 91 tune so the ethanol serves as a means to increase octane (much less expensive than 100 octane, basically $2 per gallon instead of $10 per gallon) - or do a proper E85 mix to target E30 and run the E30 map.

A couple months ago i switched from the 91 map to the E20 map running E30 mix (MHD, not BM3, but same concept) and the power increase is substantial, and in addition, the power delivery is much more consistent because i dont have a bunch of timing being pulled on the 91 map.

In most of the metro area of California there is a lot of E85 available. I recommend checking the pearson fuels website or app for E85 station locations and go from there. There are a couple recent threads on mixing E85, read my posts there and then come back with questions.

The stutter could be anything. Read the thread i posted above and get a few 'proper' 3rd gear logs (since you are 6MT) and post those up.

[Joeirl92]

Originally Posted by thejeremyman9

Read here to learn how to collect and read datalogs: https://f30.bimmerpost.com/forums/sh....php?t=1732327

Yes, our 91 sucks; i live in SoCal also. If you are willing to go the fuel mix route, i highly suggest you consider E85. You basically have two options - mix a few gallons in with 91 and run the 91 tune so the ethanol serves as a means to increase octane (much less expensive than 100 octane, basically $2 per gallon instead of $10 per gallon) - or do a proper E85 mix to target E30 and run the E30 map.

A couple months ago i switched from the 91 map to the E20 map running E30 mix (MHD, not BM3, but same concept) and the power increase is substantial, and in addition, the power delivery is much more consistent because i dont have a bunch of timing being pulled on the 91 map.

In most of the metro area of California there is a lot of E85 available. I recommend checking the pearson fuels website or app for E85 station locations and go from there. There are a couple recent threads on mixing E85, read my posts there and then come back with questions.

The stutter could be anything. Read the thread i posted above and get a few 'proper' 3rd gear logs (since you are 6MT) and post those up.

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!