[paimon.soror]

Unfortunately not with the aem kit . That's probably where the more pricy kits like torqubyte shine.

I'll have to read up on mixtures. As i understand it, a bit more water will add cooling and less octane while the opposite is true if you add more meth

[thejeremyman9]

Originally Posted by paimon.soror

Unfortunately not with the aem kit . That's probably where the more pricy kits like torqubyte shine.

I'll have to read up on mixtures. As i understand it, a bit more water will add cooling and less octane while the opposite is true if you add more meth

Correct, and less fueling with less meth, i just don't know if you can spray "too much" water.

[Blahx9]

Anyone else raspberry pi WiFi agent stop connecting after ios14? It connects to WiFi but the app can’t find the agent. Works fine on laptop. I don’t think they added the code to allow access to local networks

[paimon.soror]

Originally Posted by thejeremyman9

Correct, and less fueling with less meth, i just don't know if you can spray "too much" water.

yep makes sense and I'm a complete ding dong I just realized I could effectively change the duty cycle I could just increase the max PSI for full flow since it's a progressive system. I had it set to 15 PSI but just changed it to 20 since technically the BM3 tune shouldn't really get near that . would be an interesting experiment to see how the timings look and the richness.

[thejeremyman9]

Originally Posted by paimon.soror

yep makes sense and I'm a complete ding dong I just realized I could effectively change the duty cycle I could just increase the max PSI for full flow since it's a progressive system. I had it set to 15 PSI but just changed it to 20 since technically the BM3 tune shouldn't really get near that . would be an interesting experiment to see how the timings look and the richness.

Ah cool. Might take some trial and error then. You could even go higher say, set max PSI to double your max boost so you are running 50% DC at full boost.

[thatBimmerBloke]

Originally Posted by thejeremyman9

I wouldnt worry about +/- 10% fuel corrections, especially when its on the negative side, as that just means the tune is slightly rich from target AFR. My STFTs are almost always negative with MHD, even more so on pump gas map. On E20 map with E30 in the tank, they are less negative (since i am running more ethanol than tune expects), but i still get up to -5% every time.

As far as the BM3 E30 map being near the limit... i would say all the data suggests otherwise, especially when v7.1 first came out. Everyone was getting HPFP crashes left and right during the winter, especially with IATs < 50F. Its the nature of a load based tune with a flat boost target that doesn't adjust to atmospheric conditions. A very low DA is going to require a lot more fuel, and if your ethanol mix is overshot a little at the same time, your HPFP will crash.

Your logs look fine, although they do suggest you are at HPFP limit as you are getting dips everytime, albeit only a few hundred psi, and that's with IATs in the 80s.

Thanks Jeremy. Too bad I can't just try an MHD map to see the logs and compare them with bm3 before buying it. Lately I've been reading MHD OTS maps are better in comparison, even the logs are showing the same.

[thejeremyman9]

Originally Posted by thatBimmerBloke

Thanks Jeremy. Too bad I can't just try an MHD map to see the logs and compare them with bm3 before buying it. Lately I've been reading MHD OTS maps are better in comparison, even the logs are showing the same.

It is too bad indeed you cant test. There was one guy on here who switched from BM3 to MHD and was happy he did... forgot who it was tho would have to check my PMs.

[thatBimmerBloke]

Originally Posted by thejeremyman9

It is too bad indeed you cant test. There was one guy on here who switched from BM3 to MHD and was happy he did... forgot who it was tho would have to check my PMs.

At what point should one really get concerned about engine knock? I've seen at least three knocks in my last 25 logs. Saw one today, I thought I'd see if adaptation had made any difference to throttle closure:

https://www.bootmod3.net/log?id=5f6a...90c60f5fef7a9c

[thejeremyman9]

Originally Posted by thatBimmerBloke

At what point should one really get concerned about engine knock? I've seen at least three knocks in my last 25 logs. Saw one today, I thought I'd see if adaptation had made any difference to throttle closure:

https://www.bootmod3.net/log?id=5f6a...90c60f5fef7a9c

Good question... i would be a little worried if i saw them in every single log, but not sure how 'dangerous' that is since the knock sensor is pretty sensitive. Maybe ask PTF how frequent is too frequent?
Your timing looks great there though.

[BMW DRIVEN]

Originally Posted by thatBimmerBloke

At what point should one really get concerned about engine knock? I've seen at least three knocks in my last 25 logs. Saw one today, I thought I'd see if adaptation had made any difference to throttle closure:

https://www.bootmod3.net/log?id=5f6a...90c60f5fef7a9c

I inquired with Cary Jordan about engine knock as it was coming up in my custom tune...

He said, "All cars experience some knock from time to time. It may just be that the fuel ratio is just a little bit off to one way or the other. The timing variance is actually not a whole lot. It's within a couple of degrees which is well within the DME control range".

[thatBimmerBloke]

Originally Posted by thejeremyman9

Good question... i would be a little worried if i saw them in every single log, but not sure how 'dangerous' that is since the knock sensor is pretty sensitive. Maybe ask PTF how frequent is too frequent?
Your timing looks great there though.

Originally Posted by Joe_F32

I inquired with Cary Jordan about engine knock as it was coming up in my custom tune...

He said, "All cars experience some knock from time to time. It may just be that the fuel ratio is just a little bit off to one way or the other. The timing variance is actually not a whole lot. It's within a couple of degrees which is well within the DME control range".

I log too much, that's also the problem, haha. One tuner on facebook mentioned I need a custom tune to get rid of throttle closure. He said it's not harmful but impacts performance. Another guy was suggested to use ACN map by PTF. I'll try with stage 2 91 octane, maybe little bit reduced boost will take care of it. I know for stage 1 there was a boost(MAP and target) difference of 1 psi in my logs between 93 and 91 octane map. Should be similar for stage 2, I guess I'll find out soon.

[paimon.soror]

Finally got to do a few runs with reduced duty cycle on the WMI. Basically set "full" to 30psi which should theoretically give me about 50% DC .

Timing doesn't look as "great" as the last few logs. but i can see the STFT is a bit more relaxed than pegged full rich on the earlier logs:

Earlier Logs (Full WMI):
https://www.bootmod3.net/log?id=5f67...90c6479ba8739a
https://www.bootmod3.net/log?id=5f67...0b4333bb1a495a

Estimated 50% DC:
https://www.bootmod3.net/log?id=5f6f...0b430910877730
https://www.bootmod3.net/log?id=5f6f...90c62fc576e336
https://www.bootmod3.net/log?id=5f6f...0b43091087773c

[paimon.soror]

So here is how crappy the 93 octane is around me i guess:

AEM controller set to "full blast" at 35 PSI (progressive, base at 7psi)
https://www.bootmod3.net/log?id=5f6f...90c63fc775ee75

30PSI
https://www.bootmod3.net/log?id=5f6f...0b4374521e756a

25PSI
https://www.bootmod3.net/log?id=5f6f...729b1c3b23d508

20PSI (finally timing smooths out at the top end ...)
https://www.bootmod3.net/log?id=5f6f...0b4374d8e63d70

[designatedposter]

Originally Posted by paimon.soror

So here is how crappy the 93 octane is around me i guess:

AEM controller set to "full blast" at 35 PSI (progressive, base at 7psi)
https://www.bootmod3.net/log?id=5f6f...90c63fc775ee75

30PSI
https://www.bootmod3.net/log?id=5f6f...0b4374521e756a

25PSI
https://www.bootmod3.net/log?id=5f6f...729b1c3b23d508

20PSI (finally timing smooths out at the top end ...)
https://www.bootmod3.net/log?id=5f6f...0b4374d8e63d70

you started this WMI investigation based on some instantaneous rich AFR that coincided with a low pressure HPFP, right? seems the issue is gone now that you've dialed back your spraying with your big nozzle.

another variable you could adjust is %meth so you could still spray at 100% duty cycle. you could potentially cut the boost juice with distilled water to reduce meth content. just don't over do it since cooler temps are coming and could potentially freeze your lines.

and lastly, you could go with the smaller nozzle and keep your meth%.

[thejeremyman9]

Originally Posted by paimon.soror

So here is how crappy the 93 octane is around me i guess:

AEM controller set to "full blast" at 35 PSI (progressive, base at 7psi)
https://www.bootmod3.net/log?id=5f6f...90c63fc775ee75

30PSI
https://www.bootmod3.net/log?id=5f6f...0b4374521e756a

25PSI
https://www.bootmod3.net/log?id=5f6f...729b1c3b23d508

20PSI (finally timing smooths out at the top end ...)
https://www.bootmod3.net/log?id=5f6f...0b4374d8e63d70

Interesting experiments as you can clearly see the impact of spraying less meth on the STFTs and timing. It's going to come down to how much STFT correction you want to accept as a tradeoff for timing corrections. Honestly a few misc timing corrections here and there is nothing and is expected, so you shouldnt be worry about that and i highly doubt you would feel those. I would say run something that keeps your STFTs in the -10 to -15% range, not the full spray that was basically maxing at -25%. It seems that with STFTs around 0.85 to 0.9 you can still get good timing.

[paimon.soror]

Originally Posted by designatedposter

you started this WMI investigation based on some instantaneous rich AFR that coincided with a low pressure HPFP, right? seems the issue is gone now that you've dialed back your spraying with your big nozzle.

another variable you could adjust is %meth so you could still spray at 100% duty cycle. you could potentially cut the boost juice with distilled water to reduce meth content. just don't over do it since cooler temps are coming and could potentially freeze your lines.

and lastly, you could go with the smaller nozzle and keep your meth%.

Yup you got it on the conditions that kicked off my testing. Looks like the duty cycle tweak (setting max boost to 25psi on tthe controller) seems to have helped both keep the timing in check as well as the trims in check.

Might have to just roll with this as I dont want to worry about mixing. Rather keep it as simple as i can with the boost juice.

Originally Posted by thejeremyman9

Interesting experiments as you can clearly see the impact of spraying less meth on the STFTs and timing. It's going to come down to how much STFT correction you want to accept as a tradeoff for timing corrections. Honestly a few misc timing corrections here and there is nothing and is expected, so you shouldnt be worry about that and i highly doubt you would feel those. I would say run something that keeps your STFTs in the -10 to -15% range, not the full spray that was basically maxing at -25%. It seems that with STFTs around 0.85 to 0.9 you can still get good timing.

Good callout for sure - thanks for the tips earlier. Looks like setting the max boost on the controller to 25psi is the right spot to land in. Saves me some spray too lol

[TK335iMSPT]

2014 335i Xdrive Stock Tune 59k miles
VRSF 5inch HD intercooler
VRSF Charge Pipe
OEM Plugs/Coils gapped to .030 with 5k miles on them
AFE Pro dry drop in air filter
Running 4 Gallons of 93oct gas and 2 Gallons of 100oct gas

I've confirmed fuel quality is my issue. The new logs are the car running BM3 Stage 1 93oct with 4 gallons of 93 and 2 gallons of 100oct. These logs look perfect to me. All timing corrections have been fixed and the knocks are gone. Logs arent the cleanest due to autolog not working but still look good none the less.

New logs Mix of 93/100oct fuel:

https://www.bootmod3.net/log?id=5f7b...0b4379a0b36d26


https://www.bootmod3.net/log?id=5f7b...90c66c1601a111


Old logs on just 93oct fuel:

https://www.bootmod3.net/log?id=5f6f...0b4374521e76b9


https://www.bootmod3.net/log?id=5f6f...729b1c3b23d66b

[thejeremyman9]

Originally Posted by TK335iMSPT

2014 335i Xdrive Stock Tune 59k miles
VRSF 5inch HD intercooler
VRSF Charge Pipe
OEM Plugs/Coils gapped to .030 with 5k miles on them
AFE Pro dry drop in air filter
Running 4 Gallons of 93oct gas and 2 Gallons of 100oct gas

I've confirmed fuel quality is my issue. The new logs are the car running BM3 Stage 1 93oct with 4 gallons of 93 and 2 gallons of 100oct. These logs look perfect to me. All timing corrections have been fixed and the knocks are gone. Logs arent the cleanest due to autolog not working but still look good none the less.

New logs Mix of 93/100oct fuel:

https://www.bootmod3.net/log?id=5f7b...0b4379a0b36d26


https://www.bootmod3.net/log?id=5f7b...90c66c1601a111


Old logs on just 93oct fuel:

https://www.bootmod3.net/log?id=5f6f...0b4374521e76b9


https://www.bootmod3.net/log?id=5f6f...729b1c3b23d66b

Just took a quick scroll through and yeah those logs with 100 oct look very good.

[proTUNING Freaks]

UPDATE:
https://f30.bimmerpost.com/forums/sh....php?t=1766027

[thatBimmerBloke]

Does it make sense to upgrade the HPFP to be able to run the new Stage 2+ E30 map or even get a custom tune for E50 without upgrading the stock turbos for EWG N55? I believe it should give a decent bump in power? Plus in case I do upgrade the turbo later on I'll already have the supporting fuel system?

[thejeremyman9]

Originally Posted by thatBimmerBloke

Does it make sense to upgrade the HPFP to be able to run the new Stage 2+ E30 map or even get a custom tune for E50 without upgrading the stock turbos for EWG N55? I believe it should give a decent bump in power? Plus in case I do upgrade the turbo later on I'll already have the supporting fuel system?

Are you asking how much power you are going to gain by going from the current BM3 OTS stage 2 E30 map with stock HPFP to the stage 2+ E30 map (or a custom E50 tune) with upgraded HPFP, both on stock turbo?

[thatBimmerBloke]

Originally Posted by thejeremyman9

Are you asking how much power you are going to gain by going from the current BM3 OTS stage 2 E30 map with stock HPFP to the stage 2+ E30 map (or a custom E50 tune) with upgraded HPFP, both on stock turbo?

Yes that would be one way of putting it I believe with Stage 2 E30 map I'm making somewhere around 360-370whp. Will the 2+ E30 with just upgraded HPFP take me beyond 400whp? And will I benefit from custom E50 or will the stock turbo be a limiting factor?