Which is faster 2007 330i or 2007 330d

drugekull

New member
killua said:
Back to the diesel vs petrol debate. As a fuel, diesel has the edge because of its higher energy density. But due to its other properties, its harder to harness (for max power), because engine design needs to be more complex. We also have to remember that most research in recent years have gone into the petrol engine. Diesel engines were never designed for outright power, were they?

Yup agreed but I think diesel engines have still got a lot of room for improvement as far as performance and petrol engines have hit a bit of a peak.

For BMW to put an M badge on a Diesel car says a lot about how it's going.
 

moranor@axis

///Member
Official Advertiser
diesel has been used in industry for a very long time... power is not the issue... the main problem they face with using it in a car is to refine the engines to make the power delivery nice to drive in traffic... something which is not needed on a mining truck with 1000 gears...
 

killua

New member
moranor said:
diesel has been used in industry for a very long time... power is not the issue... the main problem they face with using it in a car is to refine the engines to make the power delivery nice to drive in traffic... something which is not needed on a mining truck with 1000 gears...

This obviously makes power a second order issue :roflol:
Because, adding more power to an old diesel engine will make the car undrivable. Its the same issue with putting a superbike engine in a car, because of the high power, the torque delivery does not match the use case of a motor vehicle. This makes sense to me because BMW could easily make the 330d more powerful, and keep the power delivery at the low end the same by just changing the map. It just feels like they don't feel safe about it yet, because some components would not be reliable enough.

But I agree. It has taken a LONG time before diesel cars were relatively nice to drive. Take my previous diesel cars for example. The delivery of torque wasn't nearly as good as the petrol versions. The torque would suddenly kick in at 2000rpm and be gone at 3900rpm. The new ones almost feel like NA petrol engines :fencelook:

btw, if I am not mistaken, typical mining trucks have less gears (7) than the current 5-series (8) :idea:
 

moranor@axis

///Member
Official Advertiser
seven gears with a top speed of maybe 65kph is alot of gears :rollsmile:

a diesel is better to drive till you try rev it or accidently open your window in a parking lot...
 

killua

New member
moranor said:
seven gears with a top speed of maybe 65kph is alot of gears :rollsmile:

a diesel is better to drive till you try rev it or accidently open your window in a parking lot...

:biglol:

Yes, Last week I was standing outside in the road, and a guy with a 320d got in and drove off. I almost got a heart attack: "Is this what my car sounds like!",
But sound insulation in the beemer is good. I only open my window to hear the turbo. I choose that hissing sound above any petrol four pot.... The diesel clatter is inaudable when driving, even when the windows are down...
 

moranor@axis

///Member
Official Advertiser
whenever im in a parking lot and i hear a diesel chugging along it just grates my soul... but thats me no reason why others cant enjoy them :)
 

drugekull

New member
Thats why I call mine the angry tractor :)

But have you heard the 530d new shape not one bit of diesel sound there at all a friend of mine got one he started it while I was standing right next to it I heard nothing that sounded like a diesel there.
 

moranor@axis

///Member
Official Advertiser
i still prefer a free revving petrol even if the sound issue is sorted i would choose a boosted petrol over diesel anyday :rollsmile:
 

killua

New member
moranor said:
i still prefer a free revving petrol even if the sound issue is sorted i would choose a booted petrol over diesel anyday :rollsmile:

As long as you stay out of the fast lane.... :roflol:
 

SKYF

Member
some good points were said, great points guys
Good to see there are helpful guys out there, you learn something everyday
 

prospect

New member
Amusing thread :rollsmile:

Before we say goodbye to this thread...
Q: Which is faster 2007 330i or 2007 330d?
A: 2007 330d :joy:
 

Philip Foglar

///Member
:blab: :fencelook: :roflol:

LOL, this is going to go on for a long time still!

I think the problem is that in the case of the 330i and the 330d they are a bit too similar in performance figures. For instance, the 320i simply does not stand a chance with the 320d - the larger engined siblings are a lot more closely matched. The diesel has the advantage of a turbo charger which is also a necessity to achieve the power and torque figures that would give the petrol a fair run for its money. Also to compare these cars sensibly one should remove the aspect of chipping and mods - fair enough I reckon more can be extracted from the diesel, but how will this realistically influence the life of the engine, and each tuning mod can vastly differ from another.

I own a 330i so of course I am going to be biased towards the engine it has - if I specifically wanted to go for a BMW diesel then I would've. So in my case it comes down to personal taste - I wanted the glorious sound and character of a BMW 6I petrol. And since I was buying a used car I felt a lot more confident buying a used petrol than a used turbo diesel.

To be honest, I am a huge fan of the diesel engine and its capabilities, and the BMW engines certainly show this in big helpings. There have been other debates like this in the past - I will repeat an important observation of mine that one has to consider. Namely, the petrol engine is more power curve whereas the diesel is more torque curve. So for most petrols you need to use the upper range of the somewhat wider rev range to get the most out of it. With most diesels you have a healthy lump of torque from low revs that gives you fantastic tractability and acceleration - and to a degree a perceived feeling of being very fast. Problem is that you run out of revs sooner than the petrol. So ultimately, and this is my opinion based on general experience with petrols and diesels that I have driven up till now, a diesel is going to be better for most everyday driving thanks to its flexibility and "available" grunt at lower revs, while on a track the petrol is still mostly going to have the edge. Economy is great on a diesel, but I think I am fair in saying that we buy these cars for their economy as much as for their performance, safety, luxury and features etc.

Another way to look at it and also based on personal taste, while I can only see myself opting for a petrol engine BMW "car", I would never opt for a petrol powered bakkie - the Isuzu that we have has a humble low output turbo diesel engine but it is so well suited to the vehicle and is actually quite handy in most traffic situations. In the BMW X ranges diesel engines make a lot of sense for their off-road potential.

Conclusion: Only way to settle this is to have one of each of these cars of the same year (2007 as per the title) and run them against each other. Run them in a straight line as well as on a track of sorts. Also to put things into perspective this would need to be done both at the coast and the highveld.
 

moranor@axis

///Member
Official Advertiser
"The numbers make even more sense when I take the cars around the track myself. I drive the petrol more intuitively, the throttle is easier to modulate and my gear selection more secure. If I had to choose a car for a track shootout, it would have to be the 335i"

this is why you buy a petrol... if you dont understand you may as well be an a diesel...
 

drugekull

New member
///MOS1TED said:
Just to add some salt to the wounds

Here it is on the track.

http://www.topcar.co.za/road-tests/comparisons/bmw-330d-vs-bmw335i

;)

Thanks MOS1TED

That settles it if there is only a 1.5 sec difference between a 335i and a 330d then the 330i has no chance even to come close

It actually is a great comparison since you are actually testing 2 cars that have forced induction and not trying to test a normally asperated engine with a turbo one

Also in the article they did say the 335i had sport suspention and the 330d didn't so I would love to see a sport pack 330d against a 335i I am almost sure the that 1.5 seconds will be brought down to zero
 

drugekull

New member
I was actually looking at the stats of all these cars on the BMW website

Its actually quite interesting

Looking at acceleration figures mainly

The 330d is closer to the 335i than the 330i is. Actually the difference between the 330i and the 335i is the same as the difference between the 320d and the 330i

So dare I say it with only a second difference between a 320d and a 330i is it good value for money performance wise purching a 330i anymore. Is it worth the extra R100000.00.

I know the sound is better and so on but if you looking at pure performance.

Also with the 330d and the 335i being so close is it really value for money purchasing a 335i for an extra R54000

https://ecom.bmw.co.za/dws/VTS/servlet/VtsPdfUI?modelCode=PP16
https://ecom.bmw.co.za/dws/VTS/servlet/VtsPdfUI?modelCode=PM36
https://ecom.bmw.co.za/dws/VTS/servlet/VtsPdfUI?modelCode=PR96
https://ecom.bmw.co.za/dws/VTS/servlet/VtsPdfUI?modelCode=PM56
 
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