revised twin turbo 3.0L six in new 7 series

[Jimmy James]

Hey kids

In amongst the numerous posts on the net of the new 7 series, I noted the performance figs for the twin turbo 3.0l version, to be misleadingly dubbed 740i -

240kw
450nm

My question is, what changes have been made to the engine to achieve these numbers and how soon can it be done to every 135i on the road?!!!!!!

full deets here

http://www.worldcarfans.com/9080704....tell-all-video


JJ

[Swift135]

Thats probably what the true flywheel numbers are currently for the 135i. If a new (non run in) car puts down 400nm at the wheel, 12% loss gives you 450nm (approx) at the flywheel.

[qship]

I think it is a dream to have this in a 135i. They may as well stop making the M3 if they did.

[Kris]

Dunno about 240kw in the 135 - I think the 225 is a pretty accurate figure..The 7 series has variable vane turbos I think or does ours have that too?

[Wraith]

Originally Posted by Swift135

Thats probably what the true flywheel numbers are currently for the 135i. If a new (non run in) car puts down 400nm at the wheel, 12% loss gives you 450nm (approx) at the flywheel.

I agree with this post...

From most dyno readouts I've seen, the actual output is around these figures, I wouldn't be surprised if the torque output is actually higher...there are alot of turbo 2.0-2.5ltr 4 bangers putting out 420-440nm with not so significant tunes these days, so 450nm for a 3.0ltr TT IL6 is easily achieved in stock trim.

Individual state of tunes from Country to Country may vary because of varying fuel octane quality and also to protect the engines from people who will use regular unleaded...

I think on the 7 series, BMW have quoted the actual amount, because it's a bigger heavier car, so it makes sense and also because it won't impact or make other models look the lesser part, as is the case with the 135i out shining the 335i and even making the new M3 look weak...