May 27 2009, 06:10 PM
QUOTE(779364 @ May 27 2009, 05:38 PM)
POWARRRR!!!!!!!!!!!!!
..................."TURBO SPOOLING PLEASE STANDBY"
I am amazed proton can actually introduce turbo into an engine with variable valve timing.It took BMW engineer the second try on their N-series turbo engine to mate both the Valvetronic technology with turbo on the newly released N55-turbo.Apparently its not cost effective to introduce both tech into the engine since the pumping loss from the exhaust valve can be conpensated by the higher pressured air being pumped into engine.
The Campro Turbo will be based on the regular Campro, not the Campro CPS...................."TURBO SPOOLING PLEASE STANDBY"
I am amazed proton can actually introduce turbo into an engine with variable valve timing.It took BMW engineer the second try on their N-series turbo engine to mate both the Valvetronic technology with turbo on the newly released N55-turbo.Apparently its not cost effective to introduce both tech into the engine since the pumping loss from the exhaust valve can be conpensated by the higher pressured air being pumped into engine.
BMW engineers found difficulty adding Valvetronic to the original N54 turbo not because of the turbocharger, but because of direct injection. This is why even the N53 direct injection non-turbo engines do not have Valvetronic. Even on the new MINI Cooper engine, the Cooper normally aspirated engine has Valvetronic but the Cooper S turbo engine adds direct injection and Valvetronic was removed.
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