I was reading up on GM engine concepts and came across their 'Displacement on Demand' (see bleow) system.
Would you be in favour of a system like this being implemented on future Ford V8 engines or not?
Displacement on Demand
"The cylinder shutdown is enabled through valve deactivation, which is performed by a compact switchable tappet. Cylinder de-activation occurs on the right-hand bank only, which allows the engine to run as a perfectly balanced inline 6-cylinder.
The system deactivation and reactivation has a quick response time and the oil system and solenoid layout allows valve switching capability at up to 6000 rpm.
The system will be implemented by GM around 04/5.
I would be all for it. If I could afford it, and it was available, I would definately be all for the disp. on demand. Think about... a V8 that gets the same mileage as a 4cyl when driven conservatively.
I remeber reading about this some other place... Might have been this forum, not to sure but i'll have a look and let you know.
Yeah I started a thread on this subject last week and yeah I think it is a good idea. It will certainly keep the pollies off our backs with the environmental/ fuel consumption arguements.
But guys, you'd be driving around on 4cylinders, I don't think some of you (ie. Minge and AP) could cope ;P
At a party on the weekend a mate who drives an EB XR8 walked in and told us that "Some car out their is blocking my path, who owns the Nissan thats missing half an engine." No point to that really.
You gotta give all those push rods a rest from time to time or they'll wear out!! ::():
This idea has been kicking around for 10 years or so from various European manufacturers etc & never seems to get off the ground; there's always a simpler more efficient system being developed somewhere.
Originally posted by Ford Man Anything that gives me the power of a GT with the economy of a Festy is a good thing by me.. :rcool:
Hehehe i'd be good but in reality Power = Wave Good Bye to Fuel Economy.
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Motor May 2001 Quote: "Believe it or not, there are actually a bunch of weirdos out there who reckon a six cylinder is the dux gutz. Bugger it: I'm one of them" :s5
AUII Late Ed XR6 HP T5 Venom- Full Tickford Body Kit, 17in Wheels, Herrod Bi-plane Spoiler, Momo Steer/Gear, T-Series Interior Options, Premium Stereo and a very light-tuned 4.0L I6
(FPV-Tickford Club of NSW Member and Co-Founding Member of 3FB Inc, Ford Forums Food Bandits)
Don't the I6s go into a "limp home" mode dropping off cylinders if the motor overheats due to burst hose etc.?
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You know, somebody actually complimented me on my driving today. They left a little note on the windscreen. It said, 'Parking Fine.'So that was nice.
In the late 70s early 80s Cadillac used cylinder drop on the big 6.0liter V8. They called it the V4-6-8 and claimed it to give the economy of a subcompact with the power of a full size. The truth is that the thing was a boat anchor in a barge of a car. I asked a guy about it in his 1982 Fleetwood and he said the system was disabled when the car had 10,000 miles because it was so unreliable. When cruising on 4 cylinders and flooring it, he reckoned it would bang and fart and slowly pick up the rest of the engine. When he moved to Australia with it he converted it to LPG.
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