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Old 08-07-2017, 10:24 AM   #9 (permalink)
sendler
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Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935

Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
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Direct injection is still expensive but is a huge step forward when paired with turbos since there is no fuel in the combustion chamber to pre ignite. And it is even possible to utilize multiple injections per firing cycle to get the exact stratified mixture and pressure profile all throughout the piston excursion. But it is expensive, complex, and noisy. Mercedes is achieving 181 hp/ Liter with maximum pulse boost pressures of 1.8 bar/ 26 psi. With flat torque of 450nm/ 332 ftlb from 2250-5000. In a family car.
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Mercedes A 45 AMG: The most powerful 4-cylinder turbo engine in the world
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