One works best at low speed,
the other at high rpm.
Not exact matches
Other than the rough idle and hard starting there's no problem, the engine has plenty of power
at high rpms and doesn't seem to be misfiring, both of which I think it would have problems with if the fuel pump wasn't providing sufficient pressure or volume.
No
other petrol engine features direct injection
at a pressure of 200 bar, spray - guided combustion and piezo injectors, all in conjunction with map - controlled cylinder shut - off, an all - aluminium crankcase with «spectacle» honing, four - valve technology with continuous camshaft adjustment, a
high compression ratio of 12.6: 1, a start / stop system and generator management — while revving to a maximum speed of over 7000
rpm.
Both engines sound a bit coarse
at high rpm, unfortunately, and they need to rev
high when you're driving in the mountains or in any
other situation that requires maximum acceleration.
One turbo responds to low engine
RPMs while the
other works
at the
higher end.
The IHI RHB51 turbocharger, developed as a joint venture between Ishikawajima Heavy Industry and Honda, was lighter and smaller than most
other turbos and could run
at higher rpm.
Featuring a dry sump for optimal lubrication
at high cornering loads and a «flat plane» crankshaft, the design allowed for more efficient exhaust scavenging without the need to have header primaries cross over from one bank to the
other enabling optimal flow
at high rpms.
With low - friction pistons,
high performance camshafts, larger diameter throttle body and
other tweaks, its engine delivers its peak 195 horsepower
at 8,000
rpms - the red line on the tachometer is
at 8,400 - and its peak torque
at 7,300, which explains why it sounds the way an angry bee would sound if piped through disco - sized amplifiers.
Other features include twin overhead camshafts, four valves per cylinder, multiple direct fuel - injection and a variable geometry turbocharger for
high torque and a rapid throttle response
at low
rpm.
Other highlights include an integrated exhaust manifold built into the cylinder head — which delivers a shorter flow path for hot exhaust gases and allows the catalytic converter to heat up faster for reduced cold start emissions — and a turbine speed sensor which allows its turbos to spin
at up to 240,000
rpm (220,000 minimum) for
higher torque and horsepower output.