3 cylinder BMWs

The biggest down fall of a turbo is the driver. By that I mean how many of the get in the car to go from a to b really know how to treat a turbo engine. The death knell of a turbo is when you shut down the engine before the turbo spins down. Like one might do when pulling into a motorway fuel stop. Or jetting off just after starting a cold engine. It's one reason I would personally never buy a used turbo car. It would be a huge benefit if makers of turbo engined cars were to include pre-post oil delivery to the turbo bearing to prevent oil coking.
 
Remember BMW did a 4 cylinder 1,500bhp unit in F1 1986....

Plenty expertise in 'charging


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Adamski said:
Remember BMW did a 4 cylinder 1,500bhp unit in F1 1986....

Plenty expertise in 'charging

And they'd get through how many in a weekend? Seem to remember 1 for practice, a special 1 for qualifying and another for the race. Then start again at the next meeting. Hence why there are now limits on how many engines you can use in a season.

Just don't think we'll see the longevity that we currently see.
 
sars said:
Stuart Truman said:
sars said:
Agree on most here, however it is the same problem as all diesels, lower maximum RPM = lower gearing = lower acceleration.

Get a test drive of a D3 BiTurbo, absolutely amazing engine. I'm hugely tempted by one

They will have made a great diesel engine when it rev's to 7000 rpm and doesn't sound like a tractor

Not 7k, but it redlines easily in most gears, isn't asthmatic at the high end and is quiet for a diesel. I'm a committed petrol head, but that was a triumph of engineering.
 
3 cylinder engines to the USA.

http://www.bmwblog.com/2012/10/02/report-bmw-bringing-3-cylinder-engines-in-the-u-s/


Quote: "...customers don’t necessary want to “know the ins and outs” of their engine,.....” Not always true! :P

Would make an interesting engine choice for the MINI though!
 
Breaker said:
Quote: "...customers don’t necessary want to “know the ins and outs” of their engine,.....” Not always true! :P

Do you remember the survey a while ago that showed something like 85% of 1 series owners didn't know it was RWD? I guess same applies to the engine itself, all most people know is whether they pour in diesel or petrol. Means something like knowing how to drive that type of engine to get the best from it is just black magic. Leads to the opinion that you just rev it to the red-line if you want to go as fast as possible or never go above 2000rpm or 40mph to be the most economical driver ever. People don't want to know how their 'white-goods' work.
 
The old 123d was pretty free revving. It was actually very petrol like in it's characteristics (apart from the soundtrack).

I recently test drove an F20 125i and 125d back to back. The 125i is quicker off the mark but when rolling the 125d was definitely faster. I'm sure it would scare a lot of "sports" cars, especially with a remap, I'm positive it would give my Z a hard time. It did however feel more diesel-like than the old 123d as it ran out of puff pretty early.

I don't really think the old oil problem on the turbos is as much of a problem now. Pumps generally flow oil for a period after shut down on most modern diesels to help prevent and damage to the bearings. I do however think that turbo set up in some of these cars is over stretched though. I wouldn't own another unless it was warrantied to the hilt.

With regard to the 3 banger. My local dealership told me it will exclusively be used for front wheel drive vehicles. First no 6 pot then no RWD :o
 
I think BMW are going the wrong way, I'm sure the next Z4 'M' will be a 3 cylinder 1.8 :thumbsdown:

They should be increasing cubic capacity not reducing it :)
 
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