new bmw 335i

[Rave]

I find it impressive, I can't think of many other diesel or petrol engines in a passenger car that produce that much torque (from such a small engine lump).
I won't bother metioning it in future if it causes a 2 page long debate.

Please don't, because it's just not that impressive. Comparing a turbodiesel to a high-revving N/A petrol is a complete apples-to-pears comparison.

[dangel]

FFS, I have an A-Level in Physics, I am perfectly well aware of the relationship between torque, RPM and power. O.K., so perhaps what I should have written was "The point is that peak torque figures are fairly meaningless when it comes to figuring out a car's peak power output and hence its rate of acceleration", but frankly anyone who wasn't deliberately being a pedantic nitpicker could have figured out what I meant easily.

Meoooow.. If you post tat, expect to be pulled up on it - "A-Level" or not. The wheels on the bus..

[GrahamGarside]

Torque is relevant to everyday none thrashing driving. It's no use a car having bucket loads of power if it's all up in the high rev range because on normal roads you just don't drive like that unless you have no consideration for noise pollution.

Another great thing about the torque of deisels if you drive a manual is the lesser need for gear changes when you loose speed.

[arbitor]

noise pollution

I love having a n/a engine that power kicks in at 5k, its the fun of it

[Rave]

Meoooow.. If you post tat, expect to be pulled up on it - "A-Level" or not. The wheels on the bus..

O.K., you're on.

[badass]

Rave's right on this pointlessly being impressed by turbocharged engines having more torque than some high revving N/A engine. Its like being impressed that Honey tastes so much more sugary than salt.
Funnily enough, I also have an A-level in physics, though my grades were not as good as his.

For calculating how fast a car can accelerate when the gearbox is used properly, using torque generated by the engine is pointless. Any modern car's acceleration when working through the gears will reflect the peak power output of the engine far more than the peak torque output.
Of course, to get an accurate figure, you will need to see either the power or torque curve but what started this argument is someone being impressed by a turbocharged engine having a higher torque figure than an N/A engine.

[badass]

not really though - they're directly related. my Golf has 115bhp but over 200lbft, as a consequence will accellerate faster than the 1.6 petrol with simliar power but less torque(105/109)

you bus weighs too much, that's all (loose all your fat passengers, do a but of lightweight work - seats, windows etc.) and give the F430 another run..

It will accelerate faster at lower RPM. If you both work the gears, acceleration will be very similar. Otherwise, Golf Tdi's would be the fastest things ever - something that only Golf Tdi owners in the outside lane of the motorway seem to believe.

[dangel]

O.K., you're on.

Pfffft..

[J4MES]

It will accelerate faster at lower RPM. If you both work the gears, acceleration will be very similar. Otherwise, Golf Tdi's would be the fastest things ever - something that only Golf Tdi owners in the outside lane of the motorway seem to believe.

Right, I've driven both. The diesel is faster. It has loads more torque. That's why. The figures kinda speak for themselves. The gearing CANNOT make up for a 100lbft difference... Trust me.



I, also, have an A level in physics. and maths. and chemistry. but this is about torque, not my CV.

[jimborae]

I have an A in GCSE Home Economics

[Butuz]

I have a MCSE - Microsoft Certified Silly EEjit!

As for the 335i - Twin turbos on an I6 - best combination around IMHO but then I am biased.
As for the 335d - best diesil engine around. Twin sequential turbos :smitten:

Now - i wonder what twin sequential variable vane turbo's would be like on a I6????

Butuz

[GoNz0]

so much testosterone going off in this thread

[arbitor]

So why do they stil get such a slating then?
they make good cars!!

[GoNz0]

1st thing that springs to mind is when the water hose blows at the back of the straight 6 engine meaning i have no bloody skin left on my right hand and most of my right arm...

bloody bmw's lol

[kalniel]

So why do they stil get such a slating then?
they make good cars!!

Because they can't even make simple things like indicators that work.

At least, I assume they're just faulty...

[dangel]

Or put another way - because of the muppets that drive them