Has vtec had its day?
10-05-2010, 07:43 AM
#34
http://www.witricity.com/
Laptops and mobiles today - the 'big' stuff sometime soon.
Nikola Tesla partially built a massive electromagnetic resonator in the early 1900's to transmit electrical energy across continents.
The Nazis were playing with this technology too.
I can't say more for fear of being abduc...
..t...e...
...d
Laptops and mobiles today - the 'big' stuff sometime soon.
Nikola Tesla partially built a massive electromagnetic resonator in the early 1900's to transmit electrical energy across continents.
The Nazis were playing with this technology too.
I can't say more for fear of being abduc...
..t...e...
...d
10-05-2010, 03:03 PM
#35
Registered User
Just carrying this on....I hope not as I love well tuned N/A engines especially the Honda VTEC units!
I'm not into these small turbo engines, I find them quite boring like almost over engineered.
I do love a good old fashioned eaton blower as well (thats non sexual btw) the feeling of unlimited power and torque makes the journey to the next petrol station even more enjoyable
I'm not into these small turbo engines, I find them quite boring like almost over engineered.
I do love a good old fashioned eaton blower as well (thats non sexual btw) the feeling of unlimited power and torque makes the journey to the next petrol station even more enjoyable
10-06-2010, 03:56 AM
#36
Registered User
Join Date: Jun 2006
Location: Tring
Posts: 1,875
Likes: 0
Received 0 Likes
on
0 Posts
The Reno Clio has circa 200 bhp from a 2.0 NA unit.
The Clio is certainly in the small CC turbo bracket but apparently the 4th generation ClioSport will be a 220 and still keeping to the NA format
http://www.autoexpress.co.uk/news/autoexpr...or_rematch.html
The Clio is certainly in the small CC turbo bracket but apparently the 4th generation ClioSport will be a 220 and still keeping to the NA format
http://www.autoexpress.co.uk/news/autoexpr...or_rematch.html
10-06-2010, 09:54 AM
#37
VTEC etc are there any road cars using air or solenoid operated valves, I seem to remember Fiat had a 900 V twin to use in the 500 with solenoid operated exhaust valves.
10-06-2010, 10:39 AM
#38
It's not quite that Chippo (it's a vertical twin too).
With Mulitair (Alfa & FIAT) a conventional cam (think of it like the big VTEC one on a Honda) operates the valves via an air column.
What happens is solenoids can blow off the lift, to give a reduced lift which is retarded in duration.
the camshaft has a vernier drive, so the reduced lift may be early or late.
It's very neat.
The Toyota system is closest to A-VTEC, in that it uses a variable-angle fulcrum.
The Nissan system is a bit cucumbers & asparagus (or a cumbersome apparatus); there is a massive amount of inertia in the system, which looks a bit like desmodromic, but isn't.
With Mulitair (Alfa & FIAT) a conventional cam (think of it like the big VTEC one on a Honda) operates the valves via an air column.
What happens is solenoids can blow off the lift, to give a reduced lift which is retarded in duration.
the camshaft has a vernier drive, so the reduced lift may be early or late.
It's very neat.
The Toyota system is closest to A-VTEC, in that it uses a variable-angle fulcrum.
The Nissan system is a bit cucumbers & asparagus (or a cumbersome apparatus); there is a massive amount of inertia in the system, which looks a bit like desmodromic, but isn't.
