[Skoidat69]

Originally Posted by hassmaschine

he's a mechanic. Not a tuner or a software engineer. I dare say, he doesn't know anything about how an MSV70 or MSV80 DME works. I haven't run a MAF in 6 years on my 330i. And yes, they came that way from the factory.

So the only down sides are the occasional rough cold start and some cruise control weirdness (but that seems to be isolated 1er issue)?

[hassmaschine]

Originally Posted by Skoidat69

@hassmaschine

Is the MAFless tune a fair weather tune i.e when the conditions are right, it's on but otherwise things are off a touch.. What BMW factory tune is it derived from?

It's the same year round. This is my daily driver.

I don't remember the ZB# off the top of my head. Honestly, I don't really have to prove anything to people. Run the tune or don't. I don't care. It's free, it's not worth my energy or time to justify it to anyone.

[hassmaschine]

Originally Posted by Skoidat69

So the only down sides are the occasional rough cold start and some cruise control weirdness (but that seems to be isolated 1er issue)?

I have never experienced any of those issues.

[TunafishE93]

Free tunes are the best tunes!

[Skoidat69]

Originally Posted by TunafishE93

Free tunes are the best tunes!

Originally Posted by TunafishE93

Free tunes are the best tunes!

True but people should send Hassmachine a couple bucks if they really like the goodies that he provides through Bimmerlabs.. Steak and a Sixer occasionally..

$400 vs Free.. send the man some cash for scotch and a cigar .. bong and blintz?

[Skoidat69]

Originally Posted by hassmaschine

It's the same year round. This is my daily driver.

I don't remember the ZB# off the top of my head. Honestly, I don't really have to prove anything to people. Run the tune or don't. I don't care. It's free, it's not worth my energy or time to justify it to anyone.

Originally Posted by hassmaschine

It's the same year round. This is my daily driver.

I don't remember the ZB# off the top of my head. Honestly, I don't really have to prove anything to people. Run the tune or don't. I don't care. It's free, it's not worth my energy or time to justify it to anyone.

I was in no way trying to question your tune or your abilities .. I just was wondering the derivative that it came from to brag.. "hey, check this shit out"..The guys at the shop are always amazed by what a bunch of random dudes and computers can figure out to do to their BMWs.. Apparently having a Euro Airbox is weird to BMW owners that don't hangout on the forums..

[nsjames]

I've been running the 3 stage 330 tune for a long time and it's just as factory.

hassmaschine has done every n52 owner a great service, and anyone that doesn't like how it's done can bugger off and do their own.

I'll tinker with this maffless deal later this week.

and thanks once again for the software hacks.
I have a GM trans with paddles if you need anything from me to help sort out transmission software for us pathetic automatic scum.
I flashed the first files you released without issue and never touched it again.

[lowrydr310]

Originally Posted by Skoidat69

The Mafless tune will only make more power under a set of perfect parameters. Out side those parameters you have an less efficient tune. Weather is one of those parameters.

And what are y'all's thoughts ?

There's still an intake air temperature sensor and a MAP sensor, so it's not like the car is running some preprogrammed paramaters for a single specific condition.

[hassmaschine]

Originally Posted by Skoidat69

I was in no way trying to question your tune or your abilities .. I just was wondering the derivative that it came from to brag.. "hey, check this shit out"..The guys at the shop are always amazed by what a bunch of random dudes and computers can figure out to do to their BMWs.. Apparently having a Euro Airbox is weird to BMW owners that don't hangout on the forums..

yeah, sorry, my post wasn't directed at you specifically, I could tell you just wanted to know what it did. But sometimes it gets old having to defend something that almost nobody understands how it really works.

When I first did my own, I just left the MAF in place (it will use the IAT and ignore the MAF sensor). At first I thought I did it wrong because I couldn't tell any difference at all in how it started, idled, and drove - it was perfectly smooth. But then I swapped in the IAT, and it drove the same, with maybe a slight difference in responsiveness (since the IAT is so much smaller I suppose). And I will never, ever have to worry about a failed or dirty MAF.

There is one caveat and that is headers - it can be done with headers but it relies on the O2 feedback, and headers can mess that up (a MAF will mask it but it's still a problem). So all of that has to be tweaked so the feedback loop works properly. I've done that on a couple cars with success - but on another car, it also had the N54 manifold and throttle body.

I struggled to get that to work properly, the fuel was crazy and nothing made sense. They were custom headers though so the previous settings I used didn't work. I have no idea what effect the N54 manifold had but it must have done something (probably the wall-wetting acceleration enrichment needed adjustment, but that would have been difficult and expensive on a dyno).

In the end, we just put the MAF on because although it made a lot of power, it wasn't very drivable, and it's swapped into an E30 so the extra 5hp isn't going to make much difference anyway because it's already plenty fast.

But for a regular N52 with the 3-stage, single stage, and even headers, it isn't a problem.

Again, this is NOT alpha-N. Alpha-N is basically just a fixed load calculation based on throttle position, mapped over engine RPM. That will run great at fixed conditions (like WOT) but not great in differing conditions and low speeds. The N52 does actually have an Alpha-N map, but it's not used for the no-MAF mode (it's basically only a limp home fail safe). I never tried it to see what it would drive like since the factory no-MAF tune ran so well, and I'm pretty sure it wouldn't drive very well anyway.

BTW, this is the reason those ESS supercharger tunes ran so poorly, especially with headers - they cut the MAF wires, basically forcing it into a limp mode. Which is funny because you can actually just turn the MAF off with one byte change in the DME and not have to touch any wires..

[Skoidat69]

There a free tunes and stock tunes.. I know that I want the Mafless tune but what are stock tunes about

[Skoidat69]

Stock tunes

[hassmaschine]

They are stock. As in, regular WinKFP flashes - in case you wanted to set everything back to stock.

[gT-BMW]

sup guy ive been running BL 325-330i tune and my car runs great. Id like to try out this mafless tune but i dont see the option to download it?? is it not available for msv70 dme? I also have AA headers

[hassmaschine]

with headers, you'd need a custom tune because all of the O2 feedback loop settings need altered or it will not run right at all.

[Skoidat69]

Just got home from Flashing the MAFless tune .. it's great.. me and the guy helping me were rather rusty on our winfkp and I ended up paying an outfit to remote in but easier that bricking or breaking something

[eurocarfan100]

Originally Posted by hassmaschine

They are stock. As in, regular WinKFP flashes - in case you wanted to set everything back to stock.

Btw out of curiosity, I heard in the ecu box on the driver side next to the wipers, there is a 10 amp switch for the speed limiter. I hear all you have to do is remove it and it applies to all bmw’s. Idk how true it is, but some speculation. What do you think?

[Skoidat69]

Originally Posted by eurocarfan100

Btw out of curiosity, I heard in the ecu box on the driver side next to the wipers, there is a 10 amp switch for the speed limiter. I hear all you have to do is remove it and it applies to all bmw’s. Idk how true it is, but some speculation. What do you think?

I thought it was the self destruct switch...

[hassmaschine]

Originally Posted by eurocarfan100

Btw out of curiosity, I heard in the ecu box on the driver side next to the wipers, there is a 10 amp switch for the speed limiter. I hear all you have to do is remove it and it applies to all bmw’s. Idk how true it is, but some speculation. What do you think?

Whatever you've heard, that doesn't exist. the speed limiter is controlled by the DME, not a physical switch. Hell, even on early Motronic from the 80s, it was controlled by the DME.

[bsmoov]

Does anybody have the 0da file for the mafless tune on the MSV70? It's not showing up as a download anymore for some reason. 2006 325xi.

[hassmaschine]

There isn't one posted for the 325 E90s. It would have to be modified a little to work.

[bsmoov]

Originally Posted by hassmaschine

There isn't one posted for the 325 E90s. It would have to be modified a little to work.

Ok, no wonder. I thought I was going crazy.

Will it be available in the future?

[Skoidat69]

Originally Posted by neilvan

Nope^^ The no-maf tune technically works on the stock MAF (uses the IAT inside it and the MAP sensor that the car has separately). Changing to the factory euro IAT sensor may be a bit more of an upgrade as it reduces the air stream restriction.

My brother has it on his 328 and it works fantastic; Hopefully eventually there's enough demand to make it for my N52 530i as well

Do you know if your brother's IAT fits where my MAF is now? I duno if I want to mess with the IAT/MAF relocation. You wouldn't by chance know that part number for his IAT?