[Viktormpi]

Hi everyone, could you please check my data log if the engine runs correctly on stage 1 RON 95 with RON 100 fuel? I was surprised by large amount of timing corrections and some knock detections on stock with RON 95 fuel. I am sorry that it is B48, but I couldn't find help elsewhere.

Stage 1, RON 95 map, RON 100 fuel, 3rd to 4th gear - https://datazap.me/u/viktormpi/log-1...?log=0&data=10

Stage 1, RON 95 map, RON 100 fuel, normal driving - https://datazap.me/u/viktormpi/log-1...?log=1&data=10

Stock, RON 95 fuel, 3rd to 4th gear - https://datazap.me/u/viktormpi/log-1...7?log=2&data=9

[Doctor X]

Originally Posted by ringo9

I was focused at the HPFP which does not seem as bad (to me), but yes Cyl.6 timing is bad in that 1st run with over 5 degrees of correction persisting down to -3.5 up to the shift point.

I know it's fine to run say E35 on a E30 tune, but E45+ maybe it's putting a bit of added stress? The significant timing correction with that much E in is weird, but I will let other more experienced people comment on the why/what.

I appreciate your input. I've had timing correction problems for a while now. So my theory was the more ethanol I'm running the less I should have.

Can anyone else support or give some feedback?

Would really appreciate it once again.

[DieselDuck]

Originally Posted by Viktormpi

Hi everyone, could you please check my data log if the engine runs correctly on stage 1 RON 95 with RON 100 fuel? I was surprised by large amount of timing corrections and some knock detections on stock with RON 95 fuel. I am sorry that it is B48, but I couldn't find help elsewhere.

Stage 1, RON 95 map, RON 100 fuel, 3rd to 4th gear - https://datazap.me/u/viktormpi/log-1...?log=0&data=10

Stage 1, RON 95 map, RON 100 fuel, normal driving - https://datazap.me/u/viktormpi/log-1...?log=1&data=10

Stock, RON 95 fuel, 3rd to 4th gear - https://datazap.me/u/viktormpi/log-1...7?log=2&data=9

All looks good. The stage 1 tune looks good, the stock one looks okay too, those corrections are minor and nothing to worry about.

[Viktormpi]

DieselDuck: thank you very much for your reply

[f30papi]

hey guys! I'm pretty dumb and never did a log when I first ran this bm3 stage 2 ots map. well now that I'm checking I'm having a scary problem and I believe its common. hpfp pressure drops 1200 psi in both logs and im getting timing corrections on only cyl4 and a bit on cyl 1. help would be much appreciated!

https://datazap.me/u/b58papi/log-1678220234?log=0&data=

https://datazap.me/u/b58papi/log-1678220234?log=1&data=

[DieselDuck]

Originally Posted by f30papi

hey guys! I'm pretty dumb and never did a log when I first ran this bm3 stage 2 ots map. well now that I'm checking I'm having a scary problem and I believe its common. hpfp pressure drops 1200 psi in both logs and im getting timing corrections on only cyl4 and a bit on cyl 1. help would be much appreciated!

https://datazap.me/u/b58papi/log-1678220234?log=0&data=

https://datazap.me/u/b58papi/log-1678220234?log=1&data=

Once again, also here the corrections are minor and nothing to worry about. Everything in the log looking good apart from what you observed yourself, hpfp is struggling. Time for a TU hpfp or flash a tune with less boost.

[f30papi]

Originally Posted by DieselDuck

Once again, also here the corrections are minor and nothing to worry about. Everything in the log looking good apart from what you observed yourself, hpfp is struggling. Time for a TU hpfp or flash a tune with less boost.

I'm wondering if the weather up here is anything to do with it. its 2 degrees Celsius. also for a ots map that just requires a dp, shouldn't it be more conservative on boost and timing as its a "one size fits all" tune?

[Cobra358]

Originally Posted by DieselDuck

The drop is probably meaning your hpfp is coming close to the limit. I know the BM3 E50 map runs very high boost (for stock turbo) midrange really giving the TU pump a challenge. However 2500psi still isn't a crash. A crash would mean it goes towards 1450psi and DME will cut fuel (with a backfire following) to protect your engine.

I agree it's probably just a bit too much for comfort. You could try a custom or MHD ots or install a dorch hpfp if you want to extract the most out of it. Or just run E30 map ofcourse.

I am running BM3 E50 tune. At E50 fuel, I get a pressure drop to 2200. At E47/48, pressure holds at 2500+, timing holds as well. I am running the TU pump.

I have never had a back fire or any stumble due to rail pressure drop. I do wonder how low is too low? 2300/2000/1600? Anyone know?

It only does it down low before 5kish rpm, then the pump catches up through the rest of the gears.

[DieselDuck]

Originally Posted by f30papi

I'm wondering if the weather up here is anything to do with it. its 2 degrees Celsius. also for a ots map that just requires a dp, shouldn't it be more conservative on boost and timing as its a "one size fits all" tune?

Yep, but every car is different in the end and the logs are showing what they're showing. TU hpfp is pretty cheap nowadays anyways.

[DieselDuck]

Originally Posted by Cobra358

I am running BM3 E50 tune. At E50 fuel, I get a pressure drop to 2200. At E47/48, pressure holds at 2500+, timing holds as well. I am running the TU pump.

I have never had a back fire or any stumble due to rail pressure drop. I do wonder how low is too low? 2300/2000/1600? Anyone know?

It only does it down low before 5kish rpm, then the pump catches up through the rest of the gears.

Crashes (+backfire loud bang) at around 1450psi/100bar. Don't ask how I know lol

[f30papi]

Originally Posted by DieselDuck

Yep, but every car is different in the end and the logs are showing what they're showing. TU hpfp is pretty cheap nowadays anyways.

for some reason i just noticed this now, but cyl4 shows that there is a timing correction, but the degree is the same as the others. but on the other log it shows no timing correction for cyl6 but if you look at the degree its dropped by a few. im kinda lost lol. im starting to think it could be due to bad fuel from a pump cuz it is 94 oct.

[talontdone]

Thoughts? Vargas GC on E40 just under 31 PSI and 14 degrees timing.

https://www.bootmod3.net/log?id=6400...729b3ae4e3cfb2

[locolok]

Good morning guys, let's see if someone can help me here with something that I don't know if it's normal.

I have a stage 2 mhd and I don't remember if the car behaved like this in stock but I feel that when it accelerated to 1/3 throttle, in the rpm drop when it does a higher gear the power drops slightly and gains power again as it recovers rpm, gear changes are made at about 3,500rpm, I feel as if I have "turbo lag", at high rpm and with a manual transmission this is not felt. The registers to wot look great, otherwise the car feels good, but I don't know if this is normal or if it should have a linear power delivery regardless of low speed gear changes.

[jav140i]

Originally Posted by talontdone

Thoughts? Vargas GC on E40 just under 31 PSI and 14 degrees timing.

https://www.bootmod3.net/log?id=6400...729b3ae4e3cfb2

Great, except you have a considerable HPFP pressure drop between 3100rpm and 3900rpm and you might feel crashes if you have lower temps.

[DieselDuck]

Originally Posted by locolok

Good morning guys, let's see if someone can help me here with something that I don't know if it's normal.

I have a stage 2 mhd and I don't remember if the car behaved like this in stock but I feel that when it accelerated to 1/3 throttle, in the rpm drop when it does a higher gear the power drops slightly and gains power again as it recovers rpm, gear changes are made at about 3,500rpm, I feel as if I have "turbo lag", at high rpm and with a manual transmission this is not felt. The registers to wot look great, otherwise the car feels good, but I don't know if this is normal or if it should have a linear power delivery regardless of low speed gear changes.

Is it drastic ? Might be because of the tuned boostprofile. If your rpm after gearchange drops right before your boost builds up, I guess the bit of of lag will be more outspoken than it was on OEM. Personally my car shifts and recovers in next gear quite smoothly though, or maybe I don't pay as much attention to it anymore as I completely forgot how the car drives stock lol.

[locolok]

Originally Posted by DieselDuck

Is it drastic ? Might be because of the tuned boostprofile. If your rpm after gearchange drops right before your boost builds up, I guess the bit of of lag will be more outspoken than it was on OEM. Personally my car shifts and recovers in next gear quite smoothly though, or maybe I don't pay as much attention to it anymore as I completely forgot how the car drives stock lol.

It's not very drastic, but sometimes it becomes uncomfortable, because you press 25% throttle and after changing gear when it gains rpm you have to lift the accelerator because it pushes too much.

When you do wot it goes perfect and you don't notice that

I don't know if it has to do with not having xhp and if this could solve the problem.

[talontdone]

Originally Posted by jav140i

Great, except you have a considerable HPFP pressure drop between 3100rpm and 3900rpm and you might feel crashes if you have lower temps.

Why do you think my HPFP pressure drops so much? It is indeed super cold up here in Calgary ... IATs are dropping as I get it into it up till about peak TQ, then start to turn upwards again.... I wonder if it's my LPFP struggling to keep up? It shouldn't be on a DS2 on E40 but who knows.

[Cobra358]

Originally Posted by DieselDuck

Crashes (+backfire loud bang) at around 1450psi/100bar. Don't ask how I know lol

I have not seen a log that low in rail pressure. When i was running E30 on a stock pump I saw it go down to 1900 but no burps or back fires. My current set up gets as low as 2400, so i guess that is ok

[f30papi]

https://datazap.me/u/b58papi/log-167...-43&zoom=5-112

Please help me figure out why im still getting timing corrections with 94 on a 91 acn tune. (idk if its normal and im giving myself a headache)

all done with traction fully off.

[DieselDuck]

Originally Posted by f30papi

https://datazap.me/u/b58papi/log-167...-43&zoom=5-112

Please help me figure out why im still getting timing corrections with 94 on a 91 acn tune. (idk if its normal and im giving myself a headache)

all done with traction fully off.

This log looks perfect, tiny corrections like this can always occur even with the correct octane mixture for the tune. Once you're consistency pulling 3 to 6 degrees on some cyilinders that's when it becomes a problem. Not your case

[MadToy]

Just run e30 and log stft. Add ethanol until your stft is going consistently more than 5-7 % over or under (should be over)

[8727]

Hi,

I found some deviation between HPFP target and HPFP actual in my logs with bm3 stage2 93oct with highflow dp installed. HPFP actual sometimes exceeds its target. Is this acceptable?
Should I replace my stock HPFP with TU one or anything?

Thanks for your time and comments!

Specs and map:
F36 440i RWD 2018
stock turbo
stock HPFP
Evolution Racewerks 200cell dp
Remus catback exhaust

bm3 OTS stage2 93oct

Logs:
https://www.bootmod3.net/log?id=640f...729bd2aaac96f5
https://www.bootmod3.net/log?id=640f...90c620ba327a9a
https://www.bootmod3.net/log?id=640f...729bcfcf831cfa