[kern417]

Originally Posted by PURE340i

So for those of us with Pure turbos, we obviously need to crank up the boost to take advantage of it. How do we go about timing then if a Pure turbo is boosting 24-25 psi.

The way I've worked with tuners in the past is you add boost until you're out of fuel, then back of 1-2 psi. Then add timing until you see timing pull/knock, and pull back 1-2 degrees. That's probably oversimplifying it, but it's the idea.

You should still be able to add a bunch of timing if you're using the same octane fuel (or better). But if you're mixing e85, you'll have to see if running less boost and more timing actually makes more power than higher boost and less timing.

[hari94]

Car: M140i xDrive
Fuel: ron100 + 6l e85
Tune: MHD 95/102ron - stg2 + xHP stg2

Setup:
- Decat Wagner
- aFe stg2 + scoop
- FTP chargepipe

You can find 3 logs I don't know how to read it or interpret but the car performs very well,

Logs:
https://datazap.me/u/hari94/m140i-st...0&data=3-15-36

[enemigo13]

I'm running identical boost as yours but I wish I had your timing lol ) 12.5 degrees at 6000rpm with 1.26 bar is fantastic.

Originally Posted by hari94

Car: M140i xDrive
Fuel: ron100 + 6l e85
Tune: MHD 95/102ron - stg2 + xHP stg2

Setup:
- Decat Wagner
- aFe stg2 + scoop
- FTP chargepipe

You can find 3 logs I don't know how to read it or interpret but the car performs very well,

Logs:
https://datazap.me/u/hari94/m140i-st...0&data=3-15-36

[OzBMR]

hari94...looks good, loves the octane. 6 litres E85 to how much Shell100?

You should flash xHP Stage 3 if you haven't tried already. I've found it super comfy in Comfort and really nice in Sport+

[hari94]

6l of e85 and the rest of shell100,
full tank is something like 52l,

[kern417]

Originally Posted by hari94

Car: M140i xDrive
Fuel: ron100 + 6l e85
Tune: MHD 95/102ron - stg2 + xHP stg2

Setup:
- Decat Wagner
- aFe stg2 + scoop
- FTP chargepipe

You can find 3 logs I don't know how to read it or interpret but the car performs very well,

Logs:
https://datazap.me/u/hari94/m140i-st...0&data=3-15-36

Thanks for the post. Can you clarify what the 95/102ron means? And why you're mixing 100+e85?

[hari94]

With MHD for each map pack (stg2 in this case) you have the choice between 3 versions based on your fuel quality:

91/95ron
93/98ron
95/102ron

I’m running with shell 100ron only, just for this log I had 6l of e85 in my tank, don’t care about it... I will provide a new log with only 100ron fuel if needed,

[OzBMR]

Originally Posted by hari94

6l of e85 and the rest of shell100,
full tank is something like 52l,

Shell V-Power 100 in Europe is 100 RON, 88 MON, AKI/octane (US) of 94. With 6 litres of E85 and 46 litres of Shell V-Power 100 you have E10 fuel with 95.4 octane (US)

Blending some E85 into a higher octane pump fuel gives a nice little boost to octane.

The combination of boost, timing and fuel looks good for your car.

[kern417]

Originally Posted by hari94

With MHD for each map pack (stg2 in this case) you have the choice between 3 versions based on your fuel quality:

91/95ron
93/98ron
95/102ron

I’m running with shell 100ron only, just for this log I had 6l of e85 in my tank, don’t care about it... I will provide a new log with only 100ron fuel if needed,

Not a problem. I updated the list based on your requested values so people know what the targets are.

The only thing I noticed is up top you're losing some boost. Yours is definitely on the high side at 18+psi, but it's dropping to the 17s at high rpm. Are you running a custom map or is it the standard MHD map?

[hari94]

Originally Posted by kern417

Not a problem. I updated the list based on your requested values so people know what the targets are.

The only thing I noticed is up top you're losing some boost. Yours is definitely on the high side at 18+psi, but it's dropping to the 17s at high rpm. Are you running a custom map or is it the standard MHD map?

Because the compressor reaches his max efficiency in high rpm

With more E85 content (charge pipe injection kit needed) or with a kit methanol we can gain from AFR and timing changes,

But I'm sure that the compressor can't give much more (maybe +1-2psi),

I'm running MHD OTS maps and for the price I couldn't be happier !

[Solid67]

Originally Posted by hari94

Because the compressor reaches his max efficiency in high rpm

With more E85 content (charge pipe injection kit needed) or with a kit methanol we can gain from AFR and timing changes,

But I'm sure that the compressor can't give much more (maybe +1-2psi),

I'm running MHD OTS maps and for the price I couldn't be happier !

I purchased the Fuel-It CPI kit and will run full E85 on the stock turbo. Kit should be coming in next week. I am excited to see what kind of numbers and times I can get on full E85.

[hari94]

Originally Posted by Solid67

I purchased the Fuel-It CPI kit and will run full E85 on the stock turbo. Kit should be coming in next week. I am excited to see what kind of numbers and times I can get on full E85.

Running full E85 is pretty confortable because you don’t need to mix,

But you need to know that you will not have your best numbers running full E85, because you need more air volume and the stock compressor can’t give you more,

I guess that a better midrange will be the biggest effect with a gain from better AFR and timings,

I bet on these numbers between: 460-480whp

[Solid67]

Originally Posted by hari94

Running full E85 is pretty confortable because you don’t need to mix,

But you need to know that you will not have your best numbers running full E85, because you need more air volume and the stock compressor can’t give you more,

I guess that a better midrange will be the biggest effect with a gain from better AFR and timings,

I bet on these numbers between: 460-480whp

Hoping to crack 500whp+/500tq+ since there are B58 (non TU) powered cars that have hit those numbers on E30/E40 + meth.

[hari94]

Originally Posted by Solid67

Hoping to crack 500whp+/500tq+ since there are B58 (non TU) powered cars that have hit those numbers on E30/E40 + meth.

The B58 loves the octane more than we love babes,

This is the reason why a meth kit provides more power (octane) than a cpi with the stock compressor and why you will never crack those numbers without meth...

A best midrange will be the biggest effect of your CPI kit on stock turbo... mapped with E40-E60 mixture.

I hope too that your IATs will be stable without meth or radiator in high gears.

Wait & see...

[OzBMR]

After seeing hari94's log's I migrated from a DervTech remote tune to MHD Stage 2 95/102 map yesterday and have run some tests using BP Ultimate 98 (93 octane) and then mixed in some United E85 Race (106 octane) to an E30 blend (about 98 octane)

https://datazap.me/u/ozbmr/m140i-mhd...-14-15&solo=10

In summary, the DervTech tune was heavy on boost 20 - 22 PSI, heavy on fuel and low on timing due to lack of octane and high intake temps from higher boost. In saying that the car felt great and did 11.8@118mph at the drag strip back-to-back. I couldn't run more than E12 due to the boost and fuel mapping and high pressure fuel pump limitations.

The MHD tune seems a lot better for my car. Using BP98 fuel the lower boost, better timing makes the same peak power but more torque under the curve. With BP98/E30 blend it is even better with a lot more torque under the curve and about 7% - 8% more peak power. Timing with the E30 blend is very good, hitting 12 degrees plus up top. Fuel rail pressure is OK at E30, holding at about 2000 PSI minimum, similar level to the DervTech 93 octane map.

I think when XDI sort out the high pressure fuel pump the DervTech high boost tune would go very well with an E40+ mix, or an MHD tune with similar boost levels.

As far as mechanical mods go my car has the first muffler deleted and the stock rear muffler has the bypass flap open 100% and disconnected. Everything else is as delivered by BMW.

Here are some Virtual Dyno graphs showing some comparisons.

MHD St2 95/102 map using BP98 (93 octane) vs DervTech BP98




MHD St2 95/102 map using E30 vs MHD St2 95/102 map using BP98




MHD St2 95/102 map using E30 vs M140i Stock using BP98

[kern417]

Originally Posted by OzBMR

After seeing hari94's log's I migrated from a DervTech remote tune to MHD Stage 2 95/102 map yesterday and have run some tests using BP Ultimate 98 (93 octane) and then mixed in some United E85 Race (106 octane) to an E30 blend (about 98 octane)

https://datazap.me/u/ozbmr/m140i-mhd...-14-15&solo=10

In summary, the DervTech tune was heavy on boost 20 - 22 PSI, heavy on fuel and low on timing due to lack of octane and high intake temps from higher boost. In saying that the car felt great and did 11.8@118mph at the drag strip back-to-back. I couldn't run more than E12 due to the boost and fuel mapping and high pressure fuel pump limitations.

The MHD tune seems a lot better for my car. Using BP98 fuel the lower boost, better timing makes the same peak power but more torque under the curve. With BP98/E30 blend it is even better with a lot more torque under the curve and about 7% - 8% more peak power. Timing with the E30 blend is very good, hitting 12 degrees plus up top. Fuel rail pressure is OK at E30, holding at about 2000 PSI minimum, similar level to the DervTech 93 octane map.

I think when XDI sort out the high pressure fuel pump the DervTech high boost tune would go very well with an E40+ mix, or an MHD tune with similar boost levels.

As far as mechanical mods go my car has the first muffler deleted and the stock rear muffler has the bypass flap open 100% and disconnected. Everything else is as delivered by BMW.

Great comparison. Thanks for sharing.

It looks like you have some timing pull on the BP98, but timing looks way with E30. If you have a stock downpipe, it would probably be better to stick with the stage 1 map instead of stage 2.

[enemigo13]

I think tune is too heavy on boost, in 5th gear you have ignition timing after TDC until 6000rpm, after that just 0.5 degrees. it's generating EGT, not power.

Originally Posted by GT500R

https://datazap.me/u/gt500r/2018-x3-...&data=5-6-9-12

MP ECU and ECU tune
93 octane

185-186% load at 6000 rpm

50 lbs/min of air

[OzBMR]

Hey kern417, for consideration on the front page for stock values

I found a typical M140i B58 stock data log from early 2018. I was using Torque Pro data logging, so the resolution isn't as high as with the MHD logger, but gives representative base data for the stock B58B30M0 250 kW (340 PS; 335 hp) and 500 N⋅m (369 lb⋅ft) version.

Boost peaked at 17 PSI from 3000 - 4000 RPM then tapered to 11 PSI towards redline. AFR's were very lean stock at 14.4 through peak torque, only dropping into the 13's over 4700 RPM and low 13's at redline.

From what I've observed with stock and after market tunes the timing values adjust to similar values, conditions permitting, with low single digit values during peak load/torque, then ramping towards 12 degrees up top.

https://datazap.me/u/ozbmr/stock-m14...0&data=2-3-4-5

[InstigatorX]

Stock 440i with MG Flasher custom stage 1 tune + xHP stage 1...

https://datazap.me/u/instigatorx/log...4&zoom=324-455

Thoughts? Looks good to my eyes and car runs fantastic. I think there's more we can squeeze out of it and Jarek (Mr. MG) is awesome.

[GT500R]

Originally Posted by InstigatorX

Stock 440i with MG Flasher custom stage 1 tune + xHP stage 1...

https://datazap.me/u/instigatorx/log...4&zoom=324-455

Thoughts? Looks good to my eyes and car runs fantastic. I think there's more we can squeeze out of it and Jarek (Mr. MG) is awesome.

Looks good, what gas? 93?

[InstigatorX]

Originally Posted by GT500R

Looks good, what gas? 93?

93 with 1.3 gals of E85. Seems to be perfect combo for me. E30 is next on my list. I really like the on-the-fly map change MG capability for this.

[OzBMR]

Here's another 4th gear run with E30 fuel mix using the MHD Stage 2 95/102 map.

Looking forward to testing this out at the drag strip in the next few weeks. Should better the DervTech tune.

https://datazap.me/u/ozbmr/m140i-mhd...21-22-23-24-25