BMW M550i xDrive 4.4 N63 523bhp/530ps Dyno Test – Bluespark Tuning Box

Описание: In our latest dyno test we have this 2021 G30 BMW M550i xDrive 4.4 V8 in for tuning and testing. Having spent considerable time with the N63 engine previously, we already know the awesome tuning potential it holds. Generating some pretty impressive numbers from stock, we could already predict some high performance figures from the test. So it was a quick installation of our 3 Channel Pro Petrol chip tuning box, it was up on the rollers to see what the engine could achieve.

It’s also worth mentioning that these vehicles currently have a locked ECU with no way to read or write the ECU data. This means that while traditional remapping is impossible, our tuning box can give owners the opportunity to make fantastic gains without requiring a traditional ECU flash. This has the added benefit of being traceless once removed for warranty purposes.

Dyno testing before and after shows healthy gains across the rev range, with a significant increase in power and torque, really transforming how it feels to drive.

Peak power was significantly increased, as we were able to lift it from 525hp at stock, up to 600hp with the box. If you take a look at the dyno graph here 0:43 you can see how we change that curve (dotted red and blue lines). We give real consistency here, bringing that extra power in as soon as possible, whilst holding it for as long as possible throughout the entire rev range, adding that +75hp at its peak, really transforming how it feels out on the road.

Torque also saw some impressive improvements. At stock the engine produced 758Nm and now 897Nm with the box. If you take another look at the graph (solid lines), you can really see where we have applied those gains. Again looking across that whole portion of the mid-range, you can really see exactly where its lifted, adding the +139Nm extra at its peak, delivering that increase exactly where it’s needed.

For more information on tuning for your BMW, please visit: https://bluesparkautomotive.com/bmw-t...

Check out our recent blog post, where we cover the ins and outs of locked ECUs: https://bluesparkautomotive.com/blog/...

For more information on our rolling road dyno services, please visit: https://bluesparkautomotive.com/info-...