X5 twin turbo bolt on 3.0d

[Makaveli69]

Are all the M57 engines pretty much the same long engine?

Can i buy a 3.0d say 2008 model long engine and bolt the stuff off an 2008 SD onto it.

[KmanOz]

Same block but different compression. Lower compression as more turbos are added.

[Makaveli69]

Thanks mate

[rodnex]

Hey, you can do the upgrade from single-turbo to bi-turbo from SD.
Many people have done that. Difference in compression ratio is minimal.
single turbo is 17:1 and biturbo is 16,5:1

You'd need to get a biturbo ECU and the vacuum actuators for turbo regulation.

valvecover/ aircleaner/ intakes is different, too.

I was about to do that swap, but then I was too impatient sourcing the spares.
So I just went for a stage 2 hybrid turbo. So I'm running now nearly 400hp on single turbo.
Can't complain

[Makaveli69]

Thanks i was wondering because someone with an X5 sd/35d done a timing chain and got quoted 15k for a 2nd hand twin turbo engine and the single turbo engines are 3-6k, only need the long bare engine.