01-23-2020, 03:22 PM | #1 |
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B58 variants .. is BMW treating us like idiots, or what's the go?
So the 2020 M340i with the B58M30O1 is making 285 kW (382 HP) of power.
In comparison the stock 540i has 250 kW and with MPPSK - i.e. B58B30M0 makes 265 kW (355 HP). Is there anything physically different with these variants or is this just another case of getting 'screwed' by BMW because they had to up the ante slightly for the M version? I'm willing to bet that the B58 in the M340i is probably only running a different ECU map and nothing else. I remember when I got my MPPSK, the literature claimed that power greater than 265 kW wasn't possible. HA! .. well that BS was blown out of the water as soon as the Toyota boys got their hands on the B58 and this might be an in-house example of the same kind of crap. Has anyone come across any other literature or press articles that cover this stuff? Last edited by DBO; 01-23-2020 at 09:27 PM.. |
01-25-2020, 06:11 AM | #2 |
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All I know is that the car is as fast as my 2012 550 was, gets well over 30 mpg on the freeway and I didn’t have to buy the car but I did. Sure, I’d like more power, I always do. But I’m not seeing the point of conspiracy theories or bashing BMW over it.
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01-25-2020, 03:20 PM | #3 |
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Assuming these are from different model years. I think it is safe to assume they spent some time refining the engine or their testing process to squeeze more out of it. Nothing conspiratorial about that.
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01-25-2020, 05:57 PM | #4 | |
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But, my guess is that there are other differences as well -- like maybe the plenum and size of the intercooler, etc. |
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01-27-2020, 07:40 AM | #5 |
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I have recently been critical of BMW for its ugly new grills and the decision to make a 2 series as a front wheel drive car. But on this one I side with BMW. The company likely strengthened some components to handle the extra power.
One can always tune a car to generate more power. But the tradeoff is worse fuel economy and more risk to the engine. Tuners are not offering 4 year warranties on the engines; BMW does. |
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01-27-2020, 08:01 AM | #6 | |
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https://www.newtis.info/tisv2/a/en/g...ics/1VncQRDjvF |
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01-27-2020, 03:25 PM | #7 | |
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Besides that - the point of the thread was not to bag BMW, but to find out if there's actually some info available that would substantiate some of their tactics. If they improved the engine mechanically (e.g. different components), then you could say, fine - yes. But to just throw a software switch means they are hobbling the known performance of the motor to suit their marketing strategy. Audi does a similar thing with their speed limiters. The MPPSK is not a cheap upgrade in terms of what you get for your money. Sure there's a nicer exhaust and a new torque converter, but the major upgrade in engine power is only because they enable something in the software of the ECU. Look, even that I don't begrudge them. They are a commercial entity that needs to make money, so why not - reducing engine power by loading different engine maps is a very cost effective way to sell an upgrade. I don't mind paying for upgrades from the manufacturer (especially within a warranty period), but what get's me offside is when they say "Thanks for your money - Trust us, this is the best the engine can be - higher power isn't possible" but then a year down the track, all of a sudden they've managed to magically squeeze another 20 kW out of the same motor (case in point for the M340i) without explanation - probably because that's what their 'marketing dept.' has decided. Now if they said "new M340i with it's improved B58 turbo or plenum chamber is now able to make 382 HP"), that would be fine, but there's nothing around that seems to support that theory. BMW is either not being transparent or not being honest in their claims. |
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01-27-2020, 11:31 PM | #8 | |
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01-28-2020, 11:34 AM | #9 |
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well, if you go by part numbers they're physically different
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01-31-2020, 12:26 PM | #10 | |
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02-02-2020, 12:07 PM | #11 | ||||
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The m340 has an update engine. Expect the 540i LCI to have the same engine in the summer |
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02-03-2020, 09:56 AM | #12 |
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