Rumours: Next Gen BMW 1-Series and 3-Series to Receive Turbo 3-Cylinder

 Rumours: Next Gen BMW 1-Series and 3-Series to Receive Turbo 3-Cylinder
BMW 123d 2.0-liter twin turbo diesel engine

Sky News motoring is fanning up the debate on BMW's possible new small petrol turbo engines. The source claims to have details of the new motors which will be comprised of a 1.35-litre three-cylinder and a larger 1.8-litre four-cylinder.

Five engines in total, three 1.35-litre and two 1.8-litre are listed as being part of the offering. They will be installed in 1 and 3 Series cars and perhaps in baseline 5 Series, X3 and X1 models. Power is said to range from 163bhp (122kW) and 140 lb-ft (190Nm) for a baseline model, to 241bhp (180kW) and 192 lb-ft (260Nm) for the 1.35-litre. The 1.8-litre will produce a massive 273bhp (204kW) minimum and 321bhp (239kW) tops.

BMW already has a small 2.0-litre twin turbo diesel as used in the 123D for 150kW (201bhp) and 400Nm. Where it has been lacking and where competitors like Mercedes-Benz and Audi have excelled is in the provision of compact four-pot petrol turbo engines. It looks like those days are coming to an end.

Apparently these BMW engines will be ready for production by the year 2011. They will be cleaner, more powerful and more efficient than current normally aspirated engines. The bigger twin turbo petrols like the 3.0-litre and 4.4-litre V8 will stay in the lineup.

 

Source: sky.com

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 Bristol411S3 Bristol411S3
A three-pot? Didn't see that coming. Looking forward to hearing how that sounds. Aren't Fiat planning a turbocharged twin for the 500 soon?
May 12, 2009 10:40 am
 orlandocroccia orlandocroccia
nice numbers! BMW has always delivered excellent powerplants. Another battle in the horizon of the german Big Three!
May 12, 2009 10:48 am
 nederina nederina
okay this might sound daft but i have driven mitsubishi's brilliant i-kei car. it's got a turbocharged 660cc petrol three cylinder engine. the sound it makes has a very good strong character; that also includes the perodua kelisa. there's a hint of porsche's flat six engine, at its high engine revs. hope that the engine also will make its way in the next mini - hopefully the car will be lighter too. i think it is bmw's new strategy to install a hybrid motor like what mitsubishi did to their i-MIEV.
May 12, 2009 10:54 am
 Targa_Florio Targa_Florio
Exactly 178hp/L for both top-end engines?! That sounds as a lot. I guess they would use Variable Twin-Turbo like they do on diesels rather than Parallel Twin-Turbo currently used on the 3L petrol, otherwise they might struggle with turbo lag and high boost threshold.
May 12, 2009 11:18 am
 madness madness
A 3 cylinder? I dunno... 3 cylinder engines tend to be noisy and unbalanced. any1 who has driven an opel corsa 1l petrol or a 1.4 diesel polo will know exactly what im on about!
May 12, 2009 11:39 am
 afterace2 afterace2
I do and i don;t want to have anything in common with a 3 cylinder, even if it comes from a BMW!
May 12, 2009 1:33 pm
Screw the 3 cylinder...the figures for the 2L 4banger sounds impressive...imagine how much more a tuner can eek out from that engine with some simple engine management, turbo, and exhaust upgrades! God I'm so glad that turbo engines are making a come back! My friend's old 944 Turbo was a beast after some modifications...the newer engines should be even better!
May 12, 2009 3:02 pm
 alessandro alessandro
I had one. My first very own car was Daihatsu Charade from 1984. A litre three-pot as hell. Never again but engine was torquish though.
May 12, 2009 3:02 pm
 xLumino xLumino
Sonds completely different to what we know about BMW-engines. 3-cylindre turboengines have great power for small cars, but for 3-series of BMW? I wait for it and will test, nothing more to say ;)
May 12, 2009 4:13 pm
 HEMI426 HEMI426
BMW engines are good as the are now! 2.0 170 hp, 3.0 272 hp, without a turbo. Don't make your engines any smaller, or give every engine in your lineup a turbo. I hope the don't gonna make only inline six petrol engines with turbos, in my opinion there normally aspirated 3.0 L6 with 218 or 272 hp is the best six cylinder petrol engine EVER
May 12, 2009 4:56 pm
 fusion01 fusion01
What, from a 1.8 litre? I'm amazed: 'The 1.8-litre will produce a massive 273bhp (204kW) minimum and 321bhp (239kW) tops.' Seems a little OTT to me. When these little puppies roll out, I'll be getting my 135i straight six for cheap 2nd hand with no regrets. Have a turbo car now and wanting to go the NA route!
May 12, 2009 5:04 pm
 fusion01 fusion01
^ lol... the 135i is a twin-turbo on a straight 6, so best of both worlds!
May 12, 2009 5:05 pm
 Uptohere Uptohere
I don't see how this is superior to a 4 cyl.
May 12, 2009 7:46 pm
 X_man X_man
nice
May 24, 2009 5:31 pm