Honda’s i-VTEC I Engine: Direct Injection
An engine that has surfaced and pretty much faded in a short time is Honda’s i-VTEC I Engine, a variant of the K-series DOHC engine family featuring gasoline direct injection. It made it’s debut in the previous generation 2004 Honda Stream 7-seater MPV in Japan, but the current Stream does not use this engine anymore, instead using a 2.0 liter version of the R-series i-VTEC SOHC engine.
The engine featured the ability to use ultra-lean air-fuel mixtures of about 65:1, much leaner compared to the the usual direct injection engine 40:1 ratio, and of course so much more leaner than the stoichiometric air-fuel mixture of 14.7:1 - this saves fuel. Fuel consumption dropped to 15km per liter. Power ratings remain the same at about 155 horsepower. This engine in the Stream is mated to a CVT gearbox with a manual 7 virtual gear shifting feature.
Honda also had a demonstration engine back in end 1999 where a 1.4 liter DOHC Honda engine was equipped with a VTEC-DI system. This was Honda’s first demonstration of direct injection to the public. The engine was installed in a Honda Logo (the predecessor to the Honda Fit/Jazz) and made power and torque outputs of 107 hp at 6200 rpm and 133 Nm at 5000 rpm.
Check out a video of the i-VTEC I engine after the jump.
Video: Honda’s i-VTEC I Engine: Direct Injection
April 18, 2007 @ 5:55 am
awsome 3D
April 18, 2007 @ 7:59 am
More like Audi’s renowned FSI engine, where fuel is directly injected into the combustion chambers, thus better combustion and fuel economy. A hard run to the east coast recently by an Audi A42.0TFSIq cost the owner only Rm30/-
and KL to Ipoh for only Rm20/- !! Now that’s fuel economy.
April 18, 2007 @ 9:01 am
Damn, that why i say honda engine technology is the best in Japan. More inovative then Toyota.
April 18, 2007 @ 9:43 am
previous stream is it fuel saving?
April 18, 2007 @ 9:56 am
Direct injection gasoline is not new. Back in the mid 1990s, Mitsubishi already has the GDI (Gasoline direct injection) engine. I believe if I had not mistaken, it was the worlds first production direct injection petrol engine.
However, due to emisions (high NOX i believe as it ran very lean) it wasn’t very marketable in countries with stricter emisions standards.
April 18, 2007 @ 11:10 am
World’s first DI engine was by Mercedes lar.
Besides, Toyota Wish do have a batch of DI engines being used, but too bad, the current one sold by UMW is normal PI engine.
The thing is, would this engine be bloody noisy and does it last long? Looks good from 3D animation.
April 18, 2007 @ 11:27 am
will the engine runing very hot?
April 18, 2007 @ 11:43 am
wonder how they manage to avoid engine knocking…
April 18, 2007 @ 12:03 pm
some serious sports car not really into direct injection ,since during mid upper rpm range direct injection simply act like normal injection (injection during intake stroke), no fuel saving issue,
rs 4 have one
but to be efficient, for sports car which normally, on the road with road traffic D I is brilliant, should have been todays engine ,at any car,
April 18, 2007 @ 2:20 pm
to ensure no over heating…engine cover and front side boby kit desgied high flow port to exhust hot air from engine room . …
April 18, 2007 @ 2:51 pm
Wow, 65:1, that’s very lean, very efficient and economical engine.
April 18, 2007 @ 5:53 pm
Yup. The Audi’s FSI engine does sounds a bit louder than the normal injection engines. Sounds like loose tappets or diesel engines.
Longevity, so far there’s no reported mechanical failure that I could research from the internet on Audi’s FSI.
Too new perhaps?
April 19, 2007 @ 10:22 am
DI engine is naturally the anti-knocking engine, which is a beauty.
April 21, 2007 @ 2:30 pm
look green for environment… great job! keep it up!
but too many “i” used…. we might get “i-robot” oneday…
April 22, 2007 @ 9:02 am
what is anti-knocking?
July 20, 2007 @ 5:04 am
online search at honda world… this engine was announce on 2003.
http://world.honda.com/HDTV/news/2003-4031127a/index.html
haiya… why take so long to market aaa. Still tunning the engine .. maybe