Bimmerpost
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications Mission Performance Presents World's First Tuning Solution For G20 M340i.

Post Reply
 
Thread Tools Search this Thread
      08-27-2019, 02:50 PM   #45
rjd598
Major General
rjd598's Avatar
United_States
1292
Rep
6,501
Posts

Drives: F30 340i
Join Date: Jan 2009
Location: San Diego,CA

iTrader: (2)

Garage List
2016 BMW 340i  [0.00]
Quote:
Originally Posted by Crazyotter View Post
Is there any reason why someone would pick stage 1 over stage 2?
stage two requires adding extra performance parts to work in conjunction with a more aggressive tune. stage one is an easy flash and requires nothing else.
Appreciate 0
      08-27-2019, 02:52 PM   #46
bimmer456
Major General
2086
Rep
5,469
Posts

Drives: 340i
Join Date: Nov 2016
Location: Pasadena, CA

iTrader: (0)

Quote:
Originally Posted by Liquid_Ice View Post
Annoying to hear that the M340i I just ordered will be slower than the M340i's produced earlier in the year. I guess the solution is to buy this tune. When will it be available for purchase?

What can you expect on a fully stock car with 93 octane gas? Is Stage 1 essentially completely stock?
It still says 382 horsepower stock one the bmw website how much is the power reduced is it slower from 0-60? Do you notice a difference?
Appreciate 0
      08-27-2019, 02:57 PM   #47
bimmer456
Major General
2086
Rep
5,469
Posts

Drives: 340i
Join Date: Nov 2016
Location: Pasadena, CA

iTrader: (0)

If the car has a factory tune by accident them maybe they are going to sell one after all. The tune would put it close to M3 numbers so the new M3 will need close to 500 horsepower.
Appreciate 0
      08-27-2019, 03:11 PM   #48
Blubaron79
Brigadier General
Blubaron79's Avatar
United_States
1076
Rep
4,317
Posts

Drives: '18 340 XDrive
Join Date: May 2009
Location: PA

iTrader: (0)

Quote:
Originally Posted by Liquid_Ice View Post
Annoying to hear that the M340i I just ordered will be slower than the M340i's produced earlier in the year. I guess the solution is to buy this tune. When will it be available for purchase?

What can you expect on a fully stock car with 93 octane gas? Is Stage 1 essentially completely stock?
I don't believe this, that they detuned them.
__________________
'18 340 xDrive: Glacier Silver, MSport, 19's, every option (except ACC and DAP), MPPSK, black grille, splitter, side sills, CF Spoiler, clear bra.
Previous: '15 335 F30 xDrive; '14 435 F32 xDrive; '09 335 E92 xDrive
Appreciate 3
yayaya73.50
Transfer2397.50
Poochie4039.50

      08-27-2019, 03:28 PM   #49
kyleb350
Brigadier General
kyleb350's Avatar
United_States
166
Rep
4,434
Posts

Drives: TBM F82
Join Date: Jun 2008
Location: Milwaukee

iTrader: (6)

That explains when I test drove one earlier this year it felt closer to an M3/M4 than I expected.
Appreciate 0
      08-27-2019, 03:37 PM   #50
535i MSport
Lieutenant
535i MSport's Avatar
United Kingdom
575
Rep
579
Posts

Drives: 2017 C63S T
Join Date: Apr 2016
Location: East Anglia

iTrader: (0)

So if you took a test drive in an early car and then bought a later car, the one you bought might be less powerful.

That would kill me!
__________________
2017 M3 Comp Pack 450PS

2017 C63S T 510PS
Appreciate 1
yayaya73.50

      08-27-2019, 03:46 PM   #51
alex2364
Lieutenant Colonel
alex2364's Avatar
United_States
1067
Rep
1,627
Posts

Drives: 2017 M4 ZCP
Join Date: May 2005
Location: Northern VA

iTrader: (2)

Garage List
2017 BMW M4  [0.00]
Quote:
Originally Posted by MissionPerformance View Post
The M340i was extremely over-rated when it rolled off the production plan, with nearly 400whp in stock form!
Shouldn't this be called underrated?
Appreciate 2
B58togo566.50
Poochie4039.50

      08-27-2019, 03:57 PM   #52
Phillsco
New Member
0
Rep
25
Posts

Drives: 2019 BMW M240i (F22 / B58)
Join Date: Feb 2019
Location: SoCal

iTrader: (0)

How about the b58 m240?
Appreciate 0
      08-27-2019, 04:52 PM   #53
PARTS@STBMW
PARTS@STBMW's Avatar
United_States
1482
Rep
6,464
Posts

Drives: ALL BMW MODELS
Join Date: Nov 2011
Location: Camarillo, CA

iTrader: (4)

Very nice!
__________________
Appreciate 0
      08-27-2019, 05:06 PM   #54
Ristau
Private First Class
Ristau's Avatar
United_States
59
Rep
136
Posts

Drives: 2020 M340i XDrive
Join Date: Sep 2016
Location: Ballwin, MO

iTrader: (0)

Quote:
Originally Posted by MissionPerformance View Post
The M340i was extremely over-rated when it rolled off the production plan, with nearly 400whp in stock form! Yes you read it right, if you purchased one of the first vehicles in production, then you have near 400whp STOCK car. That is due to the fact that BMW forgot to implement SWT (Tuning Authorization Certificate), and thus customers received a factory tuned cars. But quick, BMW caught onto this issue, and implemented a software "fix" that limited your power a bit. This new fix limited your power to 346whp (390bhp) and yet that still was over what EPA/BMW specs should be, so early July of 2019, BMW implemented yet another software fix to bring the car down to advertised 338whp(382bhp).


I just got my car off the lot on Saturday (it was only there for a week total), and it is without a doubt MUCH faster than my straight piped JB4 Map2 335i. Let's not forget the fact that F30 340i's were dynoing at 330 or so horsepower, and I've seen plenty of people saying how big of a jump there is between the 340 and M340i.
Appreciate 0
      08-27-2019, 05:32 PM   #55
RTPenland
Second Lieutenant
195
Rep
266
Posts

Drives: BMWs (14 so far)
Join Date: Mar 2018
Location: A couple places in Cali

iTrader: (0)

Quote:
Originally Posted by Ristau View Post


I just got my car off the lot on Saturday (it was only there for a week total), and it is without a doubt MUCH faster than my straight piped JB4 Map2 335i. Let's not forget the fact that F30 340i's were dynoing at 330 or so horsepower, and I've seen plenty of people saying how big of a jump there is between the 340 and M340i.
Get up to speed and figure out what's been going on

ps-JB4 map whatever for the N55 compared to the B58 is a yawn
Attached Images
 

Last edited by RTPenland; 08-27-2019 at 05:52 PM..
Appreciate 0
      08-27-2019, 06:09 PM   #56
RTPenland
Second Lieutenant
195
Rep
266
Posts

Drives: BMWs (14 so far)
Join Date: Mar 2018
Location: A couple places in Cali

iTrader: (0)

amazing work!
Appreciate 0
      08-27-2019, 06:57 PM   #57
yayaya
Second Lieutenant
74
Rep
260
Posts

Drives: BMW 335xi E92 N55
Join Date: Dec 2016
Location: Midwest

iTrader: (0)

What's with the metal in the filter? Is that normal?
Appreciate 0
      08-27-2019, 07:37 PM   #58
Ristau
Private First Class
Ristau's Avatar
United_States
59
Rep
136
Posts

Drives: 2020 M340i XDrive
Join Date: Sep 2016
Location: Ballwin, MO

iTrader: (0)

Quote:
Originally Posted by RTPenland View Post
Get up to speed and figure out what's been going on

ps-JB4 map whatever for the N55 compared to the B58 is a yawn
That's literally my point. N55s with Map2 and CDP dyno at like 340-350whp, and like 400wtq. I'm saying my STOCK M340i definitely feels quicker and more torquey. Therefore, the fact that they're saying BMW has decreased the power to around 330whp sounds outlandish.

Let's not forget that Z4's (which I would assume would be a VERY good estimate) have been dynoing at like 375whp.
Appreciate 0
      08-27-2019, 07:44 PM   #59
MissionPerformance
MissionPerformance's Avatar
United_States
982
Rep
567
Posts

Drives: '17 F31 340xi US Spec
Join Date: Aug 2014
Location: Rancho Cucamonga, CA

iTrader: (0)

Garage List
Once again information has been taken out of context quite a bit. The initial flash that came on M340i (the flash that was loaded at the production line, before the first cars even hit the showrooms) had a much higher output then stated by BMW. Think of it as a MPPSK version of m340i.

Dealers were issued a bulletin to update their inventory vehicles, so 99.5% of M340s that were sold/delivered, already had a 'Proper" calibration installed. Only reason I even learned about this move was due to our connection at the dealer telling me that the car I was picking up didn't have the "mandated" update on it. This raised a small flag to me so the first thing I did was run few tests of the first "pre-official" firmware version for G20 and compared it to later version. Only the "pre official" (or whatever you want to call it) version has shown a MUCH higher power increase compared to all subsequent updates.

We try our best to use the well known/trusted dyno that reads on the lower side, providing the most honest results. This specific dyno read 294whp on a stock 2016 340i followed by 338whp for the 2020 M340i. Those numbers, accounting for basic error, are exactly what those cars are advertised to produce. We can easily bring a stock M340i to a different dyno that we know of locally, and you will see a number north of 370whp stock and over 450whp on Stage 1, but what is the point? Those are not accurate numbers. As an experienced engine builder and tuner, I have learned one thing over years: Dyno numbers are worthless and you will never win a fight against science. In basic terms, engine's power output is directly proportionate to the oxygen it consumes. A stock M340i consumes 1040kg/h of oxygen, which using a basic formula translates to 38.2lb/min, or 382hp at the crank. Plain and simple, so don't try and fight science as you will lose.


So to summarize: M340i is still one hell of a fast car from the factory and is much faster then 340i. If you are one of the lucky ones to have first production firmware still on your car, then you are experiencing something that will be officially released as MPPSK for this chassis by BMW. So there is nothing to complain about as BMW has delivered exactly why you have paid for.

Last edited by MissionPerformance; 08-27-2019 at 08:04 PM..
Appreciate 4
otay687.00
clee1982650.50

      08-27-2019, 08:36 PM   #60
M3 Adjuster
Banned
Albania
7833
Rep
11,819
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

Quote:
Originally Posted by Pauleebe View Post

Seems like false advertising that you test drive a vehicle, buy it, only for them to then "software update" it to have the power reduced that significantly?

Oh lord.

If it puts out more than its stock rating, that's not false advertising brah... and it's not like the power isn't there ? A tune can unlock it.


ps. Would it be wrong for the OEM to offer multiple levels of tune .... ? And charge you for that higher state of tune ... ? A " competition package does just such a thing but a tune could be a standalone item.

Quote:
Originally Posted by Pauleebe View Post

That alone makes me feel justified in flashing my vehicle, though I'm way too worried about something blowing up and then voiding my warranty.

Yes exactly. # because WARRANTY.

BMW isn't gonna max out their engine design BECAUSE they warranty your car for YEARS OF USE.

A tuner can max your car out and has no responsibility to replace your drivetrain.
Appreciate 0
      08-27-2019, 10:32 PM   #61
Fitzy4GC
Enlisted Member
Fitzy4GC's Avatar
United_States
80
Rep
43
Posts

Drives: 2015 428 Grand Coupe, 2016 X3,
Join Date: Mar 2018
Location: Chicagoland

iTrader: (0)

Garage List
2015 BMW 428  [0.00]
2016 BMW X3  [0.00]
So.... may M340 to the US in May, I took delivery one June 3rd. I can't say for certain whether or not BMW "updated" the car, but my question is..... do I just not allow the auto updates? They're all over the air now. Also, I leased this one... not really able to tune too much.
Appreciate 0
      08-27-2019, 10:56 PM   #62
Scrippy
Lord Scrip
Scrippy's Avatar
United_States
848
Rep
2,088
Posts

Drives: 2011 M3 Coupe
Join Date: Jan 2012
Location: LA,Ca

iTrader: (0)

Garage List
2007 BMW 335i  [0.00]
Great work! I know manufacturers tune down motors but it is ludicrous that BMW let early cars out with that kind of power for such a car. They have got to be kicking themselves for that! That's like a manufacturer chumming the shark tuner waters and inviting y'all in.
__________________
Appreciate 0
      08-28-2019, 02:27 AM   #63
Bmw doubles
Dream crusher
Bmw doubles's Avatar
United_States
903
Rep
2,422
Posts

Drives: Fast
Join Date: Mar 2015
Location: westside

iTrader: (0)

Garage List
2011 535  [0.00]
Dope!
__________________
535i MIssion Performance, PS2, Helix HPFP Kit, Wagner FMIC, Spec 3 clutch, Steel SMF, Wolf Racing CP, UUC SSK, GFB dv, SprintBooster, Custom Dynomax Exhaust, M5 Sways, Eibach OE Springs, Koni Sports Adjustable, Custom Short Ram CAI

IG: @bmwdoubles
Appreciate 0
      08-28-2019, 06:28 AM   #64
trey100
Colonel
trey100's Avatar
767
Rep
2,267
Posts

Drives: 2016 M3 6MT
Join Date: Jul 2007
Location: New York

iTrader: (0)

Quote:
Originally Posted by Scrippy View Post
Great work! I know manufacturers tune down motors but it is ludicrous that BMW let early cars out with that kind of power for such a car. They have got to be kicking themselves for that! That's like a manufacturer chumming the shark tuner waters and inviting y'all in.
I see that as a sneaky way to get higher output cars to people on those earlier test drives for initial impressions. My guess is people weren't supposed to find out about it.
Appreciate 0
      08-28-2019, 06:51 AM   #65
GOLFFRR
GOLFFRR's Avatar
6558
Rep
23,732
Posts

Drives: GOLFFRR cart
Join Date: Mar 2009
Location: we sell BMW/Mini to ALL US states

iTrader: (4)

interesting
__________________

BEFORE YOU BUY YOUR NEXT BMW, PM ME FIRST WE CAN HOOK YOU UP!
Jimmy Bach:jbach@stevethomasbmw.com Cell:805-807-1989
If you have any issues getting a hold of Jimmy B PLEASE PM me, I'm available everyday till 545pm!
Appreciate 0
      08-28-2019, 07:10 AM   #66
JRocker3
First Lieutenant
JRocker3's Avatar
United_States
187
Rep
306
Posts

Drives: 2018 F30 340i
Join Date: Jun 2017
Location: Pennsylvania

iTrader: (0)

That's wild... seems like the ceiling for the b58 without new turbos is still under 500whp (which is still incredible).

You have to think that with the success of the MPPSK for the F30 340, and now with the early production tune "issue", that BMW is trying to control and sell tuning of its own. Maybe next we will see an M Performance downpipe... lol...

I'm still curious about what the S58 will have in store for us... twin turbo B58 sounds like an amazing idea to me... and if you're saying that the turbo is the weak link on the B58 at high outputs, I can only imagine what the S58 will be capable of.

Either way pretty cool that you guys are plowing ahead with this, my hat goes off to you and I'm looking forward to see your future progress.
__________________
/// 2018 F30 340i ///
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 12:55 PM.




g20
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST