s219
Well-Known Member
- First Name
- Doc
- Joined
- Jun 22, 2019
- Threads
- 2
- Messages
- 528
- Reaction score
- 635
- Location
- Virginia USA
- Car(s)
- BMW X3 M40i, BMW M2 Comp, Ferrari 328
I am hoping the right person comes along to explain this with credibility, but I stand by my statement that the ECU was programmed by BMW. No offense to Toyota by saying that (and I can't believe anyone would take offense).Wait, are you saying Toyota was given a locked ECU map and just accepted the tune given to them by BMW or are you saying the engine was physically tuned by BMW (ie, heads, turbo, cooling) and Toyota didn't mess with any of those parts?
I can accept the latter but to say a multi billion dollar company didn't tune an ECU that most tuners and even enthusiasts can tune very easily is logically not possible. I clearly remember A70 saying the earlier mules had more power and even Toyota tested the engine at higher levels of power (up to 700hp). In the video itself, you can see the shift points are different between the Z4 and the A90.
Engines, transmissions, or any miscellaneous parts costs money to manufacture in bulk and Toyota would be over their head (or budget) to re-engineer any of it and mass produce even a single part. But tuning an ECU is a one time thing that costs relatively nothing and can be easily modified on the go.
I'm sorry, but there is 0% chance Toyota didn't have access to every single option and map in that BMW ECU. If they didn't, I'm pretty sure they could have thrown a Denso ECU in there and get the same results. Toyota is pretty familiar with turbos and direct injections and that BMW ECU isn't anything special.
The real proof will be when the higher-power Supra comes along in the USA (I don't have a timeline, sorry, but within a year is what the insiders say). This will be inline with specs for the US Z4 's B58D motor. It will be obvious at that point it's a 100% BMW engine, just like the current B58C despite the minor emissions-related differences for the European market that Toyota decided to carry to the US.
I keep hearing about all these aspects where Toyota supposedly did their own thing, but it is completely out of line with what insiders have told us. Frankly I don't care either way, it would not bother me if the car was 100% BMW.
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