Official: Turbo is back - BMW
 

8)

306hk,400nm

BMW today released new details on its much-rumored N54 Bi-Turbo Engine. The motor is expected to appear in the 2007 BMW 335i and 2007 BMW 335ci (coupe). The engine has an output of 306 horsepower and maximum torque of 295 lbs.-ft (400 Nm). BMW said it has already tested a 3-Series sedan with the engine, and achieved a 0-62mph time of 5.7 seconds. BMW said the engine is relatively lightweight — about 70kg less than its 4.0-liter V8 engine. According to the automaker, the 3.0-liter engine has little or no turbo lag, thanks to two small turbos instead of one large one. Maximum torque is achieved between 1500 and 5800 rpm. What we know so far: BMW will show its new E92 3-Series coupe at the Geneva Motor Show along with this new engine. What's no entirely clear is whether this engine will make it to North America. Recent rumors suggested this turbo engine would be exclusive to Europe, and a different naturally-aspirated powerplant would drive the 335 in North America.

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http://www.m5board.com/photopost/upl...579/Send03.jpg

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Wooohooo... !!! FINALLY after last Turbo BMW from Alpina...
Great NEWS!!! Thanx Just_me...
Awesome Engine + it's " about 70kg less than its 4.0-liter V8 engine"
V8 alluminium engine... No words. Should be best engine for 2007. :mrgreen:
Great potential for boostin :twisted:

Are they not sure?

Propably a great engine but 306bhp from this bi-turbo doesn't sound that inspiring. Frankly I'm a little dissapointed. I'd rather have a NA 330Ci (if there's going to be one?). Only 0.6s slower to 100km/h and definetely no turbo lag.

dissapointed ?! WTF ?! :shock: 306HP = just for selling. Like it was with Skyline's GT-R in Japan. Buy this car with 280HP and tune it to 400hp easily
Rise the boost and DIE with 400hp BMW :lol:

Yes but this is a factory car so that's what's relevant. BMW are well know for producing high reving engines with high output/volume. The C32 produced 354bhp with one supercharger from 3.2litre engine back in the days. I was expecting figures in the neighbourhood of 330-340bhp atleast. Only a rise with ~40bhp just doesn't impress me. For me it sound like and engine more fitted for the 5 and 7-series.

well... anyway this engine got GREAT potential. like RS4/RS6 (Turbo engines), like GT2 engine and so on...

this is a great news, but i too expected to be in the S4 range 340HP, but this will do :D :P and the 0-100kph is good too :D

this isn't a real bi-turbo like the old audi s4 right? i thought this engine had one turbo for low RPM and the other for the higher end...not 2 for the whole range.

(100th post!)

I'm just guessing here but propably two turbos for different revs.

And if it has two turbos that makes is a "real" bi-turbo in any case. Guess what bi means :lol:

Instead of one big Turbo, this one have two small turbos. One for low rpm and one for higher rpm. I think it works the same as Toyota Supra?

400nm available between 1500-5800rpm. Redline begins at 7000rpm.

Tested in E90:
80-120kmh in 6.3s (eg. 330i in 8.2s)
0-100kmh in 5.7s (eg. 330i in 6.3s)

I bet from 0-200km/h, the turbo will cut the time by several seconds.

pressrelese translated with google

http://www.autopower.se/forum/topic.asp?id=142716

I'm quite sure of that too. ~45bhp more will definetely pay dividends.

A redline at 7000rpm sounds interesting for a turbo. At what rpm is max power?

MAx torque is 400nm, available between 1500-5800rpm :D or are you talking about HP?

Yes I'm talking about HP. The talk about power can be somewhat confusing for us swedes when we speak english. Why do manufacterers always talk about a flat torqe-curves nowadays. They are all doing it. Fact still reamins that you find a peak at some rpm no matter what.

Jag är också svensk :)

Har tyvärr inget svar på din fråga (I dont have an asnwer for you)

Jo jag vet att du är svensk, därför jag skrev som jag skrev.

Even if it's a BMW I would be suprised if max power is close to 7000rpm. Would be one cool turbo engine though. Well I guess it's a cool turbo engine anyway..

At least they are better than Mercedes :lol:

Ohh, no need to drag Mercedes into this :)

..They are on the right way now..

Nope, the turbos are placed in parallel, as you can see on the pics. Same as a 911TT, RS6 etc. ;)

It's not the same 2-stage turbo method like the 535d and Supra for instance.

more power more turbo lag, re u sure ,bmw got problems to tune this engine ? no problem to create 350-400 hp, anyway, im little suprised too, i was excpecting range from 330-360 hp,

Later there will be a 335 with 330hp and ZSG, called 335si.

Yeah, I think that they wouold want to be carefull about how much power it makes because they want the M3 to be clearly the fastest 3 and the sports car of the range.

Flat torque band is often legitimized to be for drivability, but is also due to the fact taht torque kills transmissions so 400Nm flat is cheaper in the long run. Of course, this means there is a lot more to come when chip tuners get a hold of the engine - like on any turbo engine :D

The E90 M3 will get a ~420bhp V8 so that's no prob. Also an M-version isn't all about power it will definetely handle better than the 335.

pretty impressive! they just didnt go for all out performance. reliability, noise, emissions, fuel economy, etc. are taken into consideration. :|

Definitely, this guarantees the M3 to be in the 400bhp plus range.

I guess the HP range going to continue for a bit. Now your average sedans/coupes will have over 300bhp.