M340i HP higher than advertised

srbs73 · 07-06-2020, 10:38 AM

Interesting article suggesting european models are actually producing over 400 HP, not the 374 HP quoted.

https://www.bmwblog.com/2020/07/06/c...on-a-stock-m4/

Burrcold · 07-06-2020, 11:34 AM

I think we've all known that BMW's hp numbers were way underrated. Good to see one confirmed on the dyno though.

JNW1 · 07-06-2020, 12:14 PM

Over 400bhp stock is pretty impressive!

Just a shame the G21 has got so lardy though; getting on for 1.8 tonnes really is a bit ridiculous, it could do with being 200-300kg lighter to make better use of that B58 engine. Mind you, I suppose the X-Drive only configuration in the UK doesn't help - guess it must weigh a fair bit more than the RWD equivalent that's available in some other markets?

OM3RTA · 07-07-2020, 03:13 PM

Quote:

Originally Posted by JNW1

Over 400bhp stock is pretty impressive!

Just a shame the G21 has got so lardy though; getting on for 1.8 tonnes really is a bit ridiculous, it could do with being 200-300kg lighter to make better use of that B58 engine. Mind you, I suppose the X-Drive only configuration in the UK doesn't help - guess it must weigh a fair bit more than the RWD equivalent that's available in some other markets?

I reckon your looking at another 60-100kg or so which is not far off on the lower end of the weight saved from F-G model.

225 · 07-08-2020, 04:39 PM

Their m340i has an after market downpipe which accounts for some of the extra power.
Either way though nice numbers.

srbs73 · 07-08-2020, 04:52 PM

Quote:

Originally Posted by 225

Their m340i has an after market downpipe which accounts for some of the extra power.
Either way though nice numbers.

Stock was still 405hp without the downpipe.

Not into mods myself, but downpipe took it to 435hp and then 479hp with the GTS Black.

chenry · 07-08-2020, 04:57 PM

Quote:

Originally Posted by srbs73

Stock was still 405hp without the downpipe.

Not into mods myself, but downpipe took it to 435hp and then 479hp with the GTS Black.

If you'd rather look at wheel (and only because I was just trying to work through this earlier in another thread) stock was 326.3 at the wheel and 375.5 at the wheel with the GTS Black + DP - this according to the video

evil_scooby · 08-30-2020, 12:44 PM

Quote:

Originally Posted by srbs73

Stock was still 405hp without the downpipe.

Not into mods myself, but downpipe took it to 435hp and then 479hp with the GTS Black.

That's great numbers
Exciting

07-06-2020, 10:38 AM	#1
srbs73 Major 551 Rep 1,165 Posts Drives: BMW i4 M50 Join Date: Jun 2020 Location: UK iTrader: (0)	M340i HP higher than advertised Interesting article suggesting european models are actually producing over 400 HP, not the 374 HP quoted. https://www.bmwblog.com/2020/07/06/c...on-a-stock-m4/
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07-06-2020, 11:34 AM	#2
Burrcold Brigadier General 5317 Rep 3,960 Posts Drives: 2024 M3 Comp xDrive Join Date: Oct 2019 Location: Toronto, Canada iTrader: (0)	I think we've all known that BMW's hp numbers were way underrated. Good to see one confirmed on the dyno though. __________________ Current: 2024 BMW M3 Competition xDrive \| 2022 Audi Q7 Gone: 2022 Audi RS5 \| 2020 BMW M340i \| 2019 Audi RS5
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07-06-2020, 12:14 PM	#3
JNW1 Major General 3122 Rep 5,681 Posts Drives: F56 Mini Cooper S Join Date: Oct 2012 Location: North Yorkshire iTrader: (0)	Over 400bhp stock is pretty impressive! Just a shame the G21 has got so lardy though; getting on for 1.8 tonnes really is a bit ridiculous, it could do with being 200-300kg lighter to make better use of that B58 engine. Mind you, I suppose the X-Drive only configuration in the UK doesn't help - guess it must weigh a fair bit more than the RWD equivalent that's available in some other markets?
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07-08-2020, 04:39 PM	#5
225 Brigadier General 2281 Rep 4,933 Posts Drives: 340i Join Date: Jan 2016 Location: Uk iTrader: (0)	Their m340i has an after market downpipe which accounts for some of the extra power. Either way though nice numbers.
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