How an engine works.evilleppy87 t1_iwe8c32 wrote
Reply to comment by Snufflepuffster in How an engine works. by ooMEAToo
I'm aware that there's going to be some variability, it just seemed to me that closing 90° before TDC was a little extreme, especially considering in most cases the exhaust valve closes a little after TDC
Drunken-samurai t1_iwge1ej wrote
Bringing up variability, there is VVT (variable valve timing) which takes advantage of this in real time to use different valve timings at different RPM's to provide more efficiency or power.
evilleppy87 t1_iwgrf7o wrote
Like Honda VTEC, for example?
Drunken-samurai t1_iwkt2fq wrote
Yes your right, this is part of what the VTEC acronym is (Variable Valve Timing & Lift Electronic Control).
Viewing a single comment thread. View all comments