[Sensible_]

Hi, Ive asked this question to various people on other forums and no one seems to know, any ideas?

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Hi,

Im the proud owner of a 330d, but have recently got the mrs a 318d Efficient Dynamics (Bought because it was cheap, not really for efficiency - although Im not knocking it). Im pretty clued up in terms of coding and programming but am looking to experiment a bit.

A while a go I remember a a guy who advertised to 320d -> Alpina D3 DDE6 upgrade leading to gains in performance without any reported issues.

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So my query is, is it possible to upgrade DDE of 318d (post 03/2007) to a 320d? There are lots of posts regarding the differences between 318d and 320d - however most of them refer to pre 03/2007 builds.

The 318d I have here uses the same N47D20 as the 320d engine and has:

105 kW (143 bhp) @ 4000 rpm
300 N m (221 lb ft) @ 1750-3000 rpm

The same generation 320d has:

130 kW (177 bhp) @ 4000 rpm
350 N·m (258 lb ft) @ 1750-3000 rpm

However, the 09/2009 320d has:

120 kW (163 bhp) @ 3500-4200 rpm
360 N m (265 lb ft) @ 1750-3200 rpm

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Is the 09/2009 the Efficient Dynamics model? In which case Im wondering if the injectors / turbo / intercooler are the same as the 03/2007 318d with just the tuned ECU? I did notice however that the 143 and 163 bhp variants both share the same values:

Redline(rpm) - 5000

Injection Pressure(bar) - 1600

Relative Boost(bar) - 1.5

MEP(bar) - 19

Maximum combustion chamber pressure(bar) - 170

Where as the 177 bhp variant is uprated slightly - perhaps due to the hardware upgrades?

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Any thoughts? Obviously I know I can just go get a remap, but Im sort of a geek and like this stuff.

Cheers.

[Shaggy]

318d and 320d are different, turbo is different , injectors in 320d are piezoelectric in 318d dont, IC is smaller in 318d , gear ratios are different.

320d ED and 320d are the same but ED have 318d gear ratios, electric radiator shutter and lowered suspention

[Sensible_]

Thanks Shaggy.

I'm looking into this on more detail.

Cheers

[Shaggy]

No problem

cheers mate

[cypis007]

Intercooler from 320d or from Performance Pack for 320d can be fitted to 318d LCI without any effort, straight bolt-on. Except Intercooler, only IC->Turbo pipe need to be replaced with one from 320d.
Just did this last weekend.

[EQUANT]

Got one 320d intercooler and 1 turbo pipe for sale, if OP is interested
Spare parts, after the power kit install, perfect condition.

[Knightley]

So you can't get the BMW performance power kit for the 318d, or can you ?

[4EST]

I think camshaft is different too

[Sensible_]

Just had chance to look back at this thread. I've now done the Alpina flash for DDE6 variants plenty of times. The Alpina has uprated hardware over the 320d and yet the alpina dde6 flash gives the car greater performance over the stock bmw flash.

So would the above not be similar for a 318d -> 320d dde7??? Obviously without the hardware mods you wouldn't get the full effect. But as with the Alpina upgrade you night get something...

[EQUANT]

If anyone is interested, i have a mint condition DDE from my 2010, 177HP 320d (was replaced by performance DDE).

[Sensible_]

Originally Posted by EQUANT

If anyone is interested, i have a mint condition DDE from my 2010, 177HP 320d (was replaced by performance DDE).

Do you know the zb. Number for that DDE? Also is your transmission manual or auto?

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I really don't see why it isn't possible upgrade the 318d dde with the 120kw flash for the 163ps ED 320d....