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      07-04-2020, 12:57 PM   #1
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MissionPerformance: Presenting Full Tuning Support for F97/F98 X3M/X4M

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This has been a long time coming and while we might not have been active on the X3 section of these boards, we still were behind the scenes working on a perfect production level of our S58 flash lineup.

Entering the BMW re-flashing world back in 2009, we promised the community to deliver increased performance in a Responsible manner, always leaning on the side of safety. Having years of education and experience in this field has taught us one thing: Cutting corners and using customers' vehicles as beta platforms might get you some good publicity, but will never result in a Quality product. Every new platform we have tuned has always undergone Extensive testing on our own personal/company vehicles and only went public after being deemed safe, responsible and refined for general customers. Because of this, you can rest assured that every time you push that accelerator down, you are not playing Russian Roulette with your expensive pride and joy, but instead, you have sophisticated logic and countless hours of development running on your DME.



Without further ado, today we are presenting you guys with the full lineup of S58 flashing for F97/F98. The first set of lineup will include:

1) Stage 1 for basic pump 91 octane: This package offers a 640bhp(570whp) power output and is designed to work with full stock hardware and Cali 91oct.

2) Stage 1 for premium 93 octane: The lucky states that have access to 93octane at the pump will for sure enjoy a 670bhp(600whp) power output. Just like any stage 1, this is designed on fully stock hardware and being fed a regular pump 93 octane.

3) Stage 1+ for E50 mixes: If 670bhp is not enough and you have access to E85, might we suggest mixing E85 into your fuel tank? The E50 flash is designed to work with E content between E35 to E60 and offers significant power increase to 715bhp(640whp).

4) Stage 1+ for straight E85: Do you like the 700bhp+ power but just hate mixing in e85 and doing math each time you fill up? If so, Full E85 option might be just what you are looking for. With Full E85 option on Stage 1+, you are looking at even further power increase to 730bhp(650whp) combined with simplicity of filling up with E85 at all times and knowing that the flash logic will adjust for any content between E65 to E90.

Stage 2 mapping is left for vehicles with down-pipes. Once we do final dyno numbers on a vehicle with down pipes, the numbers will be updated on this thread.

Both of our base Stage 1 options are compatible with up to E25. Running E25 mixture will give you further power improvements with much more consistency.


Stage 1 (91-93) vs Stock


Stage 1+ (E50-E85) vs Stock




Notice that stock run here was actually ran on straight E85! We never ran a full stock of this car before all the tuning began and only realized that on the last day with a full tank of E85. So, to keep it as a reference, the "Stock" base run on the chars posted here is a fully original Timing/torque mapping but with custom fueling table that is designed to run full E85. Because the DME was able to hit full ignition targets with zero retard for octane, the stock power is about 10% higher then it would have been on 91oct. Still nice to see what this engine can put down stock with good octane!


And of course a quick draggy run with full tank, stock HW, 21" Conti on Stg1+ E85 flash.







Now lets talk about behind the scenes! The age old question we get day in and day out is "What boost are you running?". As we have discussed this time after time on multiple threads, running target boost has been forgotten as a tuning strategy years ago. Instead, we run target torque. Since torque is a central figure in all of the MG1 DME functions, we decided to let the ECU run as engineered and control the boost with torque targets, with a little twist: giving throttle body a higher priority to control boost. It's a very hard thing to do but if done right, the result is just a smooth and steady load transition.

When it comes to controlling torque during load transition such as gear shift, there are two main ways of doing so:
1) Load Change Estimated -> Open WG -> Load Change Performed -> Close WG -> Wait for turbo to spool to desired airflow -> Control timing

2) Load Change Estimated -> Keep Turbo Spooled -> Lower Throttle Body and Cut Timing -> Load Change Performed -> Open Throttle Body and increase timing

Those two models are both used by BMW but for separate platforms. BMW uses model 1 for NON-M cars while they use model 2 for most of their M lineups as they have their own advantages that would be way too long to go into full detail here, though I'll explain why Model 2 is superior.

Anyone that has driven both M340i and X3M will point out right away how much longer it takes for the S58 to spool those turbos. That observation would be completely correct as S58 turbo layout is not ideal for low end torque and it takes a lot of exhaust flow to get those things pumping. Now, knowing that, you will clearly see why slowing down the turbos (as per model 1) is not ideal in events like gear shift as the result will be a momentary drop in power.
Now, lets look at model 2: We request a gear change and DME sees that as a load change about to to happen. DME keeps the WG relatively in similar position, closes Throttle body and controls valve lift to limit airflow into actual engine. The gearshift is performed, new higher torque target is set and DME opens up the TB to allow all the built up air in. This way, no waiting for turbos to spool, resulting in instant torque transition.

What does this all mean in very simple terms: Even thought we are requesting enough airflow to equate to 25psi(for example) of boost going into the actual combustion chamber, we are building up "Reserve" boost before throttle which is 3-5psi more.


Here is a datalog of the car running 10.75s with the Stg 1+ on full E85:
https://datazap.me/u/missiontuning/b...=21&zoom=4-240

Last edited by MissionPerformance; 07-09-2020 at 01:26 PM..
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      07-04-2020, 01:20 PM   #2
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Nice little overlay of S58 on stock flash with full E85 vs B58 Stg2 on E20:
You can see how much quicker B58 spools but falls off at higher RPM range

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      07-04-2020, 01:21 PM   #3
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What about E30 and Stage 2 pump gas maps?
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      07-04-2020, 01:24 PM   #4
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Very cool and impressive! Thanks for the discussion of turbo management concepts. I own both M340i and X3MC and they drive differently but both have incredible motors that are wow-inducing if you understand how they make power.
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      07-04-2020, 01:25 PM   #5
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Uggh just got the BM3 looks like I'll be getting the MP tune next.
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      07-04-2020, 01:43 PM   #6
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Quote:
Originally Posted by AlexFL View Post
What about E30 and Stage 2 pump gas maps?
If you want E30, you can literally keep the 93 map and go to E25 or flash to 1+ and run E50... pretty nifty
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      07-04-2020, 01:45 PM   #7
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Quote:
Originally Posted by cerebrallp02 View Post
Uggh just got the BM3 looks like I'll be getting the MP tune next.
I was in the same boat, Iím happy with my MP Stage 1 right now and canít wait to try the 1+
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      07-04-2020, 01:55 PM   #8
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Awesome results...very interested here. Also I'm local to you guys, maybe I'll have to make a stop by one day

I had an M240i before my X3M and as I recall you could not really run anything above E60 without issue. Is it safe to say this is not the case with the S58 motor? The LPFP can handle it? Also I remember seeing DME melting when trying to compensate for full E85...(I think it was even you that mentioned that)

Would love to know more! Keep posting
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      07-04-2020, 01:55 PM   #9
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Quote:
Originally Posted by GT500R View Post
If you want E30, you can literally keep the 93 map and go to E25 or flash to 1+ and run E50... pretty nifty
But thatís not what his website says. I thought I can use an E30 map that adjusts to 20-40% ethanol. How does it work with maps? You pay one price and can change between maps for free? Or 899 for each map?
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      07-04-2020, 02:30 PM   #10
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Quote:
Originally Posted by AlexFL View Post
But thatís not what his website says. I thought I can use an E30 map that adjusts to 20-40% ethanol. How does it work with maps? You pay one price and can change between maps for free? Or 899 for each map?
Website is getting adjusted to show the correct options and we would never charge you for all new package. Pretty much if you purchase a base stage 1 today for $899 and in 2 weeks decide to try E50, you only pay the difference.
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      07-04-2020, 02:34 PM   #11
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Quote:
Originally Posted by MissionPerformance View Post
Quote:
Originally Posted by AlexFL View Post
But that’s not what his website says. I thought I can use an E30 map that adjusts to 20-40% ethanol. How does it work with maps? You pay one price and can change between maps for free? Or 899 for each map?
Website is getting adjusted to show the correct options and we would never charge you for all new package. Pretty much if you purchase a base stage 1 today for $899 and in 2 weeks decide to try E50, you only pay the difference.
If coming from another flash tune, do we need to go back to stock first before flashing to stage 1? Also, if we flash to your tune after having used another, can we purchase the EEPROM option and will it work as indicated?
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      07-04-2020, 02:37 PM   #12
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Quote:
Originally Posted by MJDBMW View Post
If coming from another flash tune, do we need to go back to stock first before flashing to stage 1? Also, if we flash to your tune after having used another, can we purchase the EEPROM option and will it work as indicated?


You do not have to, but we recommend that you do for sake of simplicity.

EEPROM backup saves the latest/current eeprom of your vehicle. If your previous tuner did not do a full backup of your eeprom after initial flash and before you want on a drive, then there is no way for us to give you EEPROM with stock data for your car.
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      07-04-2020, 02:52 PM   #13
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Quote:
Originally Posted by MissionPerformance View Post
Website is getting adjusted to show the correct options and we would never charge you for all new package. Pretty much if you purchase a base stage 1 today for $899 and in 2 weeks decide to try E50, you only pay the difference.
Thanks for the response. Any chance to see a datalog for your Stage 1 map with 93 pump gas (not ethanol mix!)?
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      07-04-2020, 04:06 PM   #14
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Do you have draggy times for 93oct only?
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      07-06-2020, 09:03 PM   #15
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Quote:
Originally Posted by DS_BMW View Post
Do you have draggy times for 93oct only?
After emptying my tank not once, but twice and filled with just 93 octane from Shell... here are the results per your request. No E blend at all, just straight 93 in a nice summer night with some positive slope

*Edit - interesting note, based on previous 1/8 mile testing, E blend (15-20) will reduce the 1/4 mile approx .15-.2 sec in the 1/4, making it pretty much a 11.0x car and give around 1.5-2 mph extra... all on stage 1.
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      07-06-2020, 09:07 PM   #16
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Quote:
Originally Posted by GT500R View Post
After emptying my tank not once, but twice and filled with just 93 octane from Shell... here are the results per your request. No E blend at all, just straight 93 in a nice summer night with some positive slope

*Edit - interesting note, based on previous 1/8 mile testing, E blend (15-20) will reduce the 1/4 mile approx .15-.2 sec in the 1/4, making it pretty much a 11.0x car and give around 1.5-2 mph extra... all on stage 1.
Very impressive. For me personally the most impressive results so far because on straight 93. Is their stage 1+ even faster? Is 1+ for non-stock downpipes?
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      07-06-2020, 09:13 PM   #17
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Originally Posted by AlexFL View Post
Very impressive. For me personally the most impressive results so far because on straight 93. Is their stage 1+ even faster? Is 1+ for non-stock downpipes?
Agree, I can't believe just straight 93 can product these results with that DA. I am waiting for my 1+ E50 mixes file to be loaded and then I will test that out next to see the delta between 93, 93 w/E15-20 and E50 file... gonna be nuts!

When it gets cooler (not 70+*F) the 93 file will be even faster with lower intake temps
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      07-06-2020, 09:24 PM   #18
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Quote:
Originally Posted by GT500R View Post
Agree, I can't believe just straight 93 can product these results with that DA. I am waiting for my 1+ E50 mixes file to be loaded and then I will test that out next to see the delta between 93, 93 w/E15-20 and E50 file... gonna be nuts!

When it gets cooler (not 70+*F) the 93 file will be even faster with lower intake temps
From what I understood the E50 map is also compatible with E40 mix, right? I donít want to go higher than E40 without the flex fuel upgrade.
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      07-06-2020, 09:28 PM   #19
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Quote:
Originally Posted by AlexFL View Post
From what I understood the E50 map is also compatible with E40 mix, right? I donít want to go higher than E40 without the flex fuel upgrade.

Correct sir!
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      07-09-2020, 07:41 AM   #20
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Forgive my strained eyes trying their best with this phone, but the 91 ACN tune has what for a power/torque curve? Is the torque starting at 1,750rpms rather than the stock 2600?

That alone could conquer the "delay" some people have trouble getting used to in the M and MC. Ballsy stuff! Good work guys!

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      07-09-2020, 12:01 PM   #21
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Yipee! Great work! Now how do we flash? What would be really cool is to come out with a BM3 map done by mission performance with all these goodies if possible. Special thanks to the full e85 map. I really wanted that for simplicity and safety.
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      07-09-2020, 12:05 PM   #22
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600whp on stage 1 93 octane is insane

MissionPerformance
Could you limit torque on that tune and still get to the 600whp?

Stock is limited to 450wftlb it seems, in the tune I see 550wftlb. If we limited to 500wftlb, can we still get to 600whp?
Concerned with being able to hook up with track use on the future G8X M


Also, is it possible to show the rpms in the graphs?

Last edited by SYT_Shadow; 07-13-2020 at 04:50 PM..
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