[theSpiceMelange]

Hey guys, getting going on e85 tuning for my big turbo. Tuner thinks port injection isn’t spraying, but when i compare STFT to other tunes like pump gas i dont see a difference. How do my logs look, what am i looking for? I have a motiv reflex connected to hobbs switch so i know i need to make sure the switch is working and check wiring, is there a place to look for comprehensive info on the subject?

https://datazap.me/u/kentarowins/upd...og=0&data=3-16

[rybski]

Hi all, so this is a 4th gear pull from my drive home today.

https://www.bootmod3.net/log?id=610b...729b1db9302d9c

I'm wondering about the boost overshoot and the effect that has on the HPFP and throttle position?

If boost overshoots, does the throttle close some which results in a lower rail pressure. I thought the waste gate took care of too much boost.

Rail pressure target remains constant, so I'm trying to figure out whats happening here. Is my rail pressure drop the cause of the throttle closure?

Running the Dorch stage 1 HPFP and BM3 OTS stage 2+ E30.

I'm likely at higher than e30 but not higher than e45. I don't have an ethanol analyzer yet and the ranges for e85 are stupid wide at the pump.

Any comments would be appreciated.

[designatedposter]

Originally Posted by rybski

Hi all, so this is a 4th gear pull from my drive home today.

https://www.bootmod3.net/log?id=610b...729b1db9302d9c

I'm wondering about the boost overshoot and the effect that has on the HPFP and throttle position?

If boost overshoots, does the throttle close some which results in a lower rail pressure. I thought the waste gate took care of too much boost.

Rail pressure target remains constant, so I'm trying to figure out whats happening here. Is my rail pressure drop the cause of the throttle closure?

Running the Dorch stage 1 HPFP and BM3 OTS stage 2+ E30.

I'm likely at higher than e30 but not higher than e45. I don't have an ethanol analyzer yet and the ranges for e85 are stupid wide at the pump.

Any comments would be appreciated.

log looks good. throttle closure is DME controlling the overboost. HPFP dip is signal that you are over limit of the pump, especially since you are overboosting and requiring more fuel than anticipated at those RPMs. i wouldn't be concerned about your dip though. pretty small dip if you ask me. you're still over 2k psi. i've seen dips into the 1500 range without significant issue, but also not ideal...

the HPFP is mechanical and can generate more pressure with RPM.. so it is common to be over limit at low rpms when the surge of boost hits.

you could decrease ethanol content to help out your HPFP. your timing is perfect, so definitely margin to decrease ethanol.

you could also not change a thing, because i would be very satisfied with a log like this.

[rybski]

Originally Posted by designatedposter

log looks good. throttle closure is DME controlling the overboost. HPFP dip is signal that you are over limit of the pump, especially since you are overboosting and requiring more fuel than anticipated at those RPMs. i wouldn't be concerned about your dip though. pretty small dip if you ask me. you're still over 2k psi. i've seen dips into the 1500 range without significant issue, but also not ideal...

the HPFP is mechanical and can generate more pressure with RPM.. so it is common to be over limit at low rpms when the surge of boost hits.

you could decrease ethanol content to help out your HPFP. your timing is perfect, so definitely margin to decrease ethanol.

you could also not change a thing, because i would be very satisfied with a log like this.

Thanks! I appreciate the feedback.

I'll take your advice and dail back the EtOH a bit on the next tank and do some more pulls. I need to install the analyzer since pump e85's true EtOH is such a crapshoot.

[rybski]

Originally Posted by designatedposter

log looks good. throttle closure is DME controlling the overboost. HPFP dip is signal that you are over limit of the pump, especially since you are overboosting and requiring more fuel than anticipated at those RPMs. i wouldn't be concerned about your dip though. pretty small dip if you ask me. you're still over 2k psi. i've seen dips into the 1500 range without significant issue, but also not ideal...

the HPFP is mechanical and can generate more pressure with RPM.. so it is common to be over limit at low rpms when the surge of boost hits.

you could decrease ethanol content to help out your HPFP. your timing is perfect, so definitely margin to decrease ethanol.

you could also not change a thing, because i would be very satisfied with a log like this.

Ha! you were spot on with your call. I went with 4.5gal of E85 and topped it off with 93 on a nearly empty tank. HPFP dips way less and timings is still on point.
https://www.bootmod3.net/log?id=610f...0b431bdc8a4f16.

Next question, that drop in boost at higher RPM, is that just the max that the stock turbo can push?

thanks again!

[Ahanix]

Originally Posted by WrxToBeamerGuy

I have been noticing one or two single misfires reports when data logging but none of my scanners show any codes and my car drives good. I would say the cold start idle can be a little rough.

Looking at my AFRs I don't think theyre very good though can I please get some input?

https://datazap.me/u/wrxtobimmerguy/...14-15-16-20-21

Sent you a PM, sounds like we're both having similar issues with Bootmod3 and Utah gas. I've been tempted to switch to MG Flasher or pay for a custom tune but curious if you have settled this out at all.

[zbraptorsdr]

Hey there, long time lurker. Would someone more experienced check my logs? I have done plenty of looking at other poster's logs and coming to my own conclusions, but I think its time for a 2nd set of eyes.

This Log is from a several months back while on the stage 1 OTS
https://www.bootmod3.net/log?id=6045...729b5994d9f21a

This log is from the OEM MPPSK tune included with my bootmod3 license taken today. Its quite warm, but the corrections seem less extreme
https://www.bootmod3.net/log?id=6119...90c6768b3aff0f

Looking at the timing corrections has me a little concerned. I rolled back to the OEM MPPSK since I was a little annoyed with the stage 1 tunes surging on part throttle in day to day use. I just changed back to the OTS Stage 1 to see if a different surging goes away from the stock tune (seems to be somewhat normal behavior on b58 engines according to some others saying similar things in this forum https://f30.bimmerpost.com/forums/sh....php?t=1541584) Ive tried finding better fuel here is CA but 91 from shell seems to be the best I can fine that is close to me. Next time I find myself near 100 octane I plan to add a little and trying the log again.

Do either of these maps look safe to run for the long haul?

Thanks for looking!

[Red-i]

would anyone mind to take a look at this log? it's my first time even attempting a log so hopefully i captured correctly. i'm running stage 1 93 map, and am using petro canada 94 gas (located in toronto)

https://www.bootmod3.net/log?id=611b...729b0ac793b7e5

[Ictus]

Not F-series.
G30 540ix.
Pure800, Dorch Stage2 HPFP, VRSF dp.
Custom E30 tune (not fineshed) by ODIN tuned.
Ambiant temp is around 19-20°C.

https://datazap.me/u/akhmed/log-1629...?log=0&data=23

I don’t like how HPFP works. Trying to fix it. I can’t use Dorch Stage2 checkbox in MHD, fuel pressure is bumping. Using Dorch Stage1 checkbox no fuel pressure bumping. Chris Dorchester said that Stage1 software is simplified Stage2 soft. But maybe this is the reason. What do you think.
On that revision of E30 tune my 540ix runs 6,64-6,67s in 100-200 km/h. 7,60-7,68s in 60-130mph.

[DoubleZeroNineOneEight]

3 logs with MHD’s new OTS Stage 2 93oct hpfp map. xHP, Dorch S1 and catted AA. Bunk fuel?

https://datazap.me/u/suvpra/log-1629...40-41-42-43-44

[Uni-Rapide]

Originally Posted by Ictus

Not F-series.
G30 540ix.
Pure800, Dorch Stage2 HPFP, VRSF dp.
Custom E30 tune (not fineshed) by ODIN tuned.
Ambiant temp is around 19-20°C.

https://datazap.me/u/akhmed/log-1629311556?log=0&data=23

I don’t like how HPFP works. Trying to fix it. I can’t use Dorch Stage2 checkbox in MHD, fuel pressure is bumping. Using Dorch Stage1 checkbox no fuel pressure bumping. Chris Dorchester said that Stage1 software is simplified Stage2 soft. But maybe this is the reason. What do you think.
On that revision of E30 tune my 540ix runs 6,64-6,67s in 100-200 km/h. 7,60-7,68s in 60-130mph.

Don't know about the Dorch 1 or 2 but have a couple of questions for you:
- it seems like you're not 100% pedal, why?
- do you still have traction control enabled?
- do you have xHP installed as well?

[Uni-Rapide]

Originally Posted by DoubleZeroNineOneEight

3 logs with MHD's new OTS Stage 2 93oct hpfp map. xHP, Dorch S1 and catted AA. Bunk fuel?

https://datazap.me/u/suvpra/log-1629342919?log=0&data=4-7-23-26-39-40-41-42-43-44

Low timing and the corrections could indeed be due to bad fuel, but you also have lots of torque limiters. What was your previous tune and did you also have those torque limiters? How does the car feel compared to your previous tune?

[DoubleZeroNineOneEight]

Originally Posted by Uni-Rapide

Low timing and the corrections could indeed be due to bad fuel, but you also have lots of torque limiters. What was your previous tune and did you also have those torque limiters? How does the car feel compared to your previous tune?

I’ve tried stage 2 91, stage 2 93 and stage 2 hpfp 93. All three feel fine. Similar between both 93 tunes. 91 feels like less power. I have xHP stage 3 flashed and logged in sport/S or M trans. Did not touch DSC or traction. Vehicle is x-drive. 131072 trq lim in all logs.

[Devious340i]

Running stage 2 mg flasher 93.
Vrsf catted dp and xhp stage 2
Just trying to figure out if my logs are looking good getting no feedback at all from Mg

https://datazap.me/u/gotemf30/stage-...-4-38-39-40-41

[JD11937]

Originally Posted by Ictus

Not F-series.
G30 540ix.
Pure800, Dorch Stage2 HPFP, VRSF dp.
Custom E30 tune (not fineshed) by ODIN tuned.
Ambiant temp is around 19-20°C.

https://datazap.me/u/akhmed/log-1629311556?log=0&data=23

I don’t like how HPFP works. Trying to fix it. I can’t use Dorch Stage2 checkbox in MHD, fuel pressure is bumping. Using Dorch Stage1 checkbox no fuel pressure bumping. Chris Dorchester said that Stage1 software is simplified Stage2 soft. But maybe this is the reason. What do you think.
On that revision of E30 tune my 540ix runs 6,64-6,67s in 100-200 km/h. 7,60-7,68s in 60-130mph.

I also have the dorch stage 2 on a custom tune and my tuner told me to select the oem option otherwise his hpfp settings would be copied over by the mhd settings.

I also have some spikes in rail pressure but it only occurs for a moment on shifts.

[Ictus]

Originally Posted by Uni-Rapide

Don't know about the Dorch 1 or 2 but have a couple of questions for you:
- it seems like you're not 100% pedal, why?
- do you still have traction control enabled?
- do you have xHP installed as well?

with 100% pedal logs are same. I record all logs (except wet weather) in DSC OFF in Sport Plus mode.
I have xHP stage3

Originally Posted by JD11937

I also have the dorch stage 2 on a custom tune and my tuner told me to select the oem option otherwise his hpfp settings would be copied over by the mhd settings.

I also have some spikes in rail pressure but it only occurs for a moment on shifts.

Thanks! I’ll try it. Maybe it will help.

[Uni-Rapide]

Originally Posted by DoubleZeroNineOneEight

I've tried stage 2 91, stage 2 93 and stage 2 hpfp 93. All three feel fine. Similar between both 93 tunes. 91 feels like less power. I have xHP stage 3 flashed and logged in sport/S or M trans. Did not touch DSC or traction. Vehicle is x-drive. 131072 trq lim in all logs.

Maybe try logging in Sport+ M with DSC off, might help with the torque limiters. And see if you can get some better fuel or add a bit of E85. Dorch S1 should do up to E30 without issues.
The HPFP 93 should feel a bit stronger, especially in the +/- 3k-5k rpm range, at least that's with BM3.

[Fodase]

After putting in a new VTT GC turbo and running an MHD OTS stage 1 91 octane map I've run my first datalog.

At some point I do want to run a custom map for the new turbo, but I would appreciate any thoughts on how the numbers look and whether I should be in a rush for the new tune.

Thanks!

It's about 80*F and I started on an on-ramp and ran through 3rd gear.


https://datazap.me/u/jtomson/3rd-gea...-24-25-26&hg=3

[Ictus]

Originally Posted by Fodase

After putting in a new VTT GC turbo and running an MHD OTS stage 1 91 octane map I've run my first datalog.

At some point I do want to run a custom map for the new turbo, but I would appreciate any thoughts on how the numbers look and whether I should be in a rush for the new tune.

Thanks!

It's about 80*F and I started on an on-ramp and ran through 3rd gear.


https://datazap.me/u/jtomson/3rd-gea...-24-25-26&hg=3

i can’t understand why you use Stage1 map with GC. Also with these low boost map your timing is not got. Try other petrol.

[Fodase]

Originally Posted by Ictus

i can’t understand why you use Stage1 map with GC. Also with these low boost map your timing is not got. Try other petrol.

Here's the story in the link below if you're interested. I did wonder about the gas and may throw some octane boost in until I can get a full tank of 93 in it.

Once I am confident that everything is running well I will likely get the "Wedge" tune advertised on the VTT site. I'm now running MHD instead of the BM3

https://f30.bimmerpost.com/forums/sh....php?t=1835119

[kriszty]

Originally Posted by Fodase

Here's the story in the link below if you're interested. I did wonder about the gas and may throw some octane boost in until I can get a full tank of 93 in it.

Once I am confident that everything is running well I will likely get the "Wedge" tune advertised on the VTT site. I'm now running MHD instead of the BM3

https://f30.bimmerpost.com/forums/sh....php?t=1835119

better put some ethanol in it, instead of boosters..

i did read your story, you replaced the turbo ?? how much you paid for it

[Ictus]

Originally Posted by Fodase

Here's the story in the link below if you're interested. I did wonder about the gas and may throw some octane boost in until I can get a full tank of 93 in it.

Once I am confident that everything is running well I will likely get the "Wedge" tune advertised on the VTT site. I'm now running MHD instead of the BM3

https://f30.bimmerpost.com/forums/sh....php?t=1835119

I had bad experience with Wedge Performance. Can’t recommend them. They also don’t now how to tune GC. Other way you lost money and time. They don’t think about client only about the money. No result - f*ck off!

You also need TuHPFP or tuned pump to get more power.