GT-Four
Well-Known Member
Fair point BUT here's what confuses me. Look on the left side of the scene with the laptop. The door is covered with felt. Another thing is why would bmw allow Toyota to go through with making plenty of changes to the B58 (essentially making a whole new engine) and not keep any of that for themselves(Like instead of making a whole new B58 let's implement the positive changes you have brought to the table to the S58 and you can have it on the supra to some extent). The lower redline perhaps maybe be again to keep it inline with the Z4. UNLESS it's just a regular B58 and Toyota didn't do a damn thing but then how can we explain the power its making with so little boostThe big difference with the S engines is that they're developed at M GmBH which is a (BMW-owned) seperate motorsport entity. There's very little correlation between BMW and M on the "M" engines.
Tada also mentioned that the engine featured at goodwood would be the flagship for the car.
I am really thinking the data on the laptop was purely to do with the GTE/GT3 spec car... Especially given Toyota's reliability and MTBF requirements for an engine, I can't see them spinning it too hard in the road version. They'd rather fill it with boost.
Engine stress is proportional to piston speed squared, so have an exponential growth as rpm increase. Easiest way for longevity = lower rpms.
I hope I am 100% wrong and we see a 7000rpm+ monster with collaboration from the M motorsport guys, but all the snippets and tidbits left leave me to think that the engine in these cars is the ones we are getting. Boost and fuel will be the variable for any higher output (from Toyota), rather than extra rpm. I doubt that M would want an iron block (they haven't had the need in the past, aftermarket tuning is not at the forefront of M motorsport) and it would be far more complex to accomodate for the increased mass in an existing chassis - rather than simultaneously while building a new bespoke chassis
As for the aftermarket, well, I spin my 2JZ to 7500 with no issues on the standard valvetrain and it seems fairly happy
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