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stevej37 stevej37 is online now
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Join Date: Jan 2002
Location: west michigan
Posts: 27,870
variable compression ratio engines

Infiniti is offering it's 4 cyl turbo'd cars with variable compression ratio engines starting in 2018....per Car and Driver.
Just when you think there is no more room for improvements, some new tech comes out!
They say the comp ratio can be changed from 8.8:1 to 12.0 in .2 second...giving better mpg and allowing more boost to be added.
According to their preview..an eccentric bushing is used on each connecting rod at the piston end. A small ram turns the bushing to control the compression ratio.
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Last edited by stevej37; 02-02-2017 at 05:52 PM..
Old 02-02-2017, 09:55 AM
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