R56 Valvetronic or not?
#1
#2
Cooper = Valvetronic
Cooper S = Drive-by-wire Throttle Body [aka not Valvetronic]
This can be confirmed via the pictures on RealOEM.com, and taking a very close look underhood. Shortcut: here is the link for the MCS's TB.
I'm not sure BMW knows how to do Valvetronic with forced induction, but that's just a guess. Valvetronic may be too expensive and not gain that much for forced induction; whereas a traditional throttle body is good enough.
$0.02,
Ryan
Cooper S = Drive-by-wire Throttle Body [aka not Valvetronic]
This can be confirmed via the pictures on RealOEM.com, and taking a very close look underhood. Shortcut: here is the link for the MCS's TB.
I'm not sure BMW knows how to do Valvetronic with forced induction, but that's just a guess. Valvetronic may be too expensive and not gain that much for forced induction; whereas a traditional throttle body is good enough.
$0.02,
Ryan
#3
That'd be my guess. Some of the performance tweaks needed to maximize the efficiency on an NA engine are not helpful when you've got pressure on your team.
#4
Yep - that's why the supercharged Top-Fuel dragsters have eight individual short "zoomie" exhaust pipes, rather than some tuned-length exhaust system. You don't have to care about exhaust-gas scavenging or other tricks to coax the air/fuel mixture into the engine when you've got 45 psig of boost from the supercharger!
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