RE: Driven: BMW 335i

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Discussion

Output Flange

16,801 posts

212 months

Wednesday 15th February 2012
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BlitzE34 said:
And it was usually the smallest 6cyl that was the smoothest.
..and least fuel efficient versus the performance on offer.

gangzoom

6,305 posts

216 months

Wednesday 15th February 2012
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Ozzie Osmond said:
I'm confused.

306 bhp seems decidedly modest these days from a 3-litre six with a turbo.
The engine may be rated at 306bhp, but it seems even stock most of these hit 270bhp+ at the wheels on the Dyno which is a lot more than 306bhp at the crank...

Fox-

13,241 posts

247 months

Wednesday 15th February 2012
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So if it yeilded only 28mpg from a 335i then its probably fair to say a 320d on the same trip wouldnt have been busting economy records and would probably return a reasonable 40mpg or so.

So what we are saying then is that you'll lose about 25% of fuel economy in return for dropping the 4 cylinder dagdag and replacing it with a 3 litre inline six petrol turbo.

Fantastic. Best car in the range surely? Where is the downside?

E38Ross

Original Poster:

35,099 posts

213 months

Thursday 16th February 2012
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Fox- said:
So if it yeilded only 28mpg from a 335i then its probably fair to say a 320d on the same trip wouldnt have been busting economy records and would probably return a reasonable 40mpg or so.

So what we are saying then is that you'll lose about 25% of fuel economy in return for dropping the 4 cylinder dagdag and replacing it with a 3 litre inline six petrol turbo.

Fantastic. Best car in the range surely? Where is the downside?
i suspect that 28mpg covers some rather enthusiastic driving too wink there was a reason the speedo was photoshopped out, you know hehe

i think considering that, 28mpg seems very good for a 300bhp reasonably heavy car to be honest. i reckon you'd get well into the 30's if driven normally.

daveknott5

731 posts

220 months

Thursday 16th February 2012
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Riggers: "My conclusion? It pains me to say this, but the Twinpower six is feeling a bit old these days. Its four-cylinder petrol and diesel brethren are so efficient, and sufficiently powerful, as to make the big six almost an irrelevance, especially on a long trip like this, where even a perfectly respectable 28-and-a-bit mpg just seems a bit too thirsty. Unless you really crave that six-cylinder yowl, it's hard to make a convincing logical case for the 335i."

Riggers - get your coat man! How can one of the world's most advanced 6 cylinder engines feels "a bit old"? I think what you really meant to say is that its one of the last bastions of hope for us petrolheads - swimming against the tide of diesel and 4 cylinder oppression forced on us by enviro-political governments. I for one think the N55 twin power turbo six is fantastically efficient considering it offers up 306bhp and 300lb/ft of torque. There are some 2.0 turbo engines that struggle to make these economy figures (step fwd Megane 250 which typically averages 25-26 mpg). Long may the 6 cylinder continue.




PHMatt

608 posts

149 months

Thursday 16th February 2012
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doogz said:
steve_n said:
For what? There was never a problem with space in a 3 series.

I'd rather have hydraulic and 2mpg less any day but the emissions regulations seem to be strangling anything conducive to fun.
Dunno. Whatever.

2 turbos and a stload of pipework maybe?

I wasn't defending BMW's choice here, just an observation about electric PS systems.
1 turbo - they're twin scroll not twin turbo. Twin scroll, like the old MR2 Turbo's (also often mistakenly referred to as twin turbo) have 2 entry points to the turbo from the manifold from 2 cylinders each. This improves airflow to the turbo which increases spool up speeds lowering lag and smoothing everything out.
I believe the very original 335i's had twin turbo's but BMW dropped them in favour of twin scroll (often called twin entry) turbo.

Regarding 6 Vs 4 - why the hell has no one, not one person mentioned the science?
Straight 6 engines offer the best balance of any engine configuration offering the smoothest operation. This is why BMW have built a reputation over the decades of putting straight sixes in their cars.

As some one who went from various 4 bangers to an E46 330 I can assure you everything about a straight 6 is better than a 4.

pSyCoSiS

3,600 posts

206 months

Thursday 16th February 2012
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For £50k? No thanks!

But, long live the great BMW straight-six!

Fox-

13,241 posts

247 months

Thursday 16th February 2012
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pSyCoSiS said:
For £50k? No thanks!

But, long live the great BMW straight-six!
It's £37k and loaded with a pile of options most people wouldnt tick anyway.

You can get a 118d to £40k if you wish, doesnt mean that 118d's actually cost £40k.

Cheburator mk2

2,995 posts

200 months

Thursday 16th February 2012
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Ha, I am actually glad that BMW developed the 328i... Ever since I had an E30 M3 and a E30 320iS I have lusted for the return of a powerful and light four banger up-front. While the I6 sounds good, I am yet to drive another BMW, which turned in with the same gusto as my E30s. Oh, and another thing - £50k for a non-M 3-series... Mwahahaha...

Fox-

13,241 posts

247 months

Thursday 16th February 2012
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It's 37k! Not 50k.

PHMatt

608 posts

149 months

Thursday 16th February 2012
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If you bought one for £37k you'd have quite possibly the least desirable second hand F30 335 available. It would depreciate faster than a specc'd model and be harder to sell.

It would also be pretty crap. Why buy a premium car without toys?

Fox-

13,241 posts

247 months

Thursday 16th February 2012
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PHMatt said:
If you bought one for £37k you'd have quite possibly the least desirable second hand F30 335 available. It would depreciate faster than a specc'd model and be harder to sell.

It would also be pretty crap. Why buy a premium car without toys?
The standard spec is very generous, its not poverty spec. Sure there is stuff you would spec but not really 13k of stuff.

Yazza54

18,538 posts

182 months

Thursday 16th February 2012
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Was it mapped?

Twin Turbo

5,544 posts

267 months

Thursday 16th February 2012
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Output Flange said:
..and least fuel efficient versus the performance on offer.
You're not wrong. The 2 litre straight six in my old E39 520i sounds great and is still creamy smooth after 181k miles, but with just 150bhp it struggles to average 28mpg as it requires foot to the floor on far too many occasions.

That BMW now have a 300bhp six that has better economy and oodles more performance is pretty cool in my book.

Much prefer the trim in this test car. Is that "Luxury" or "modern"? Whatever, it's much more tasteful than the 80's-fest redlined "Sport" trim.

Can't wait to see one of these in the metal smile

PHMatt

608 posts

149 months

Thursday 16th February 2012
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Doogz - not even all the E9X's were twin turbo's, only the first run as far as I'm aware, as of 2009 onward they're single twin entry turbo's.


pagani1

683 posts

203 months

Thursday 16th February 2012
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Too Big, Too Fat, Too ugly, too Aloof, and too expensive.
Where are you going to BMW? to Mercedes und Audiland and I for one will not forgive you.
Your stylists have ruined your design ethos totally as much as Bangle and it's certainly not a manic monday.
Sorry BMW zero point.

PHMatt

608 posts

149 months

Thursday 16th February 2012
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You can't blame manufacturers for making cars bigger and heavier.

If they didnt get bigger they'd have less and less space inside because of all the rules and regs forcing them to fit impact beams, crumple zones, airbags etc etc etc etc into the structures of the cars.
With all of the above you get weight gains.
Throw in the publics demand for luxury and you end up with big heavy cars.
It's hardly BMW's fault that they get told to do all these things by their governers and customers.




pSyCoSiS

3,600 posts

206 months

Thursday 16th February 2012
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Fox- said:
It's £37k and loaded with a pile of options most people wouldnt tick anyway.

You can get a 118d to £40k if you wish, doesnt mean that 118d's actually cost £40k.
Either way, IMHO not worth that sort of money.

Rather invest that into a concours E30 M3 - something that will NOT depreciate the way this will.

gmh23

252 posts

181 months

Thursday 16th February 2012
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Dagnut said:
Yeah but it does 39mpg combined????
Which is a lot more than an S4, I just don't think this looks special enough, not for that price

b14

1,061 posts

189 months

Thursday 16th February 2012
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[quote=steve_n]
For what? There was never a problem with space in a 3 series.
[quote]

Have you looked under the bonnet of an E90 335i? I own one and trust me, their ain't much room in there. Any extra space would have been useful I reckon.