For me when we see what resembles the breech of the x5 b58 it is signed toyota.
Circles on the molded collector I think about using the process for 2jz.
But if toyota has to help bmw to make the breech nothing prevents bmw to use this same breech for the s58. indeed from the rumors the s58 is...
Unfortunately I don’t see clearly the most interesting things velocity, engine rmp, gear levels.
With all these information you can’t easy found gear ratio. :(
I have already said thoses values are test value don’t final spec of the engine. if the redline is 7000 make a test a 10% more isn’t amazing for engineer but interesting for ecu update :)
Don’t forbid it’s a test car and the engineer can’t modify some parameters to produce more.
The more interesting is this engine can’t increased this rpms at 7756 without failure.
And if is not a good engine add 10k€ for a 2jz full open :flame:
If toyota removes the reinforcement add on the Z4 to replace the lack of rigidity due to the roof supression.
Between 50 and 100 kg less than the Z4.
Or same weight if toyotas want incresed the rigidity
All Spec Z4 engine
https://www.largus.fr/mondial/bmw-z4-2019-nouvelles-photos-et-fiche-technique-9384391.html
And price
https://www.largus.fr/mondial/prix-bmw-z4-les-tarifs-du-nouveau-z4-9385399.html
All in french sorry