Displacement on Demand

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Jun 15, 2005 | 03:00 PM

#16

dream '94 Z28

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Joined: Nov 2001

Posts: 1,646

From: Portland, OR

Re: Displacement on Demand

Quote:

Originally Posted by Big Als Z

Im sure that the 900's will have it, (more like I hope).
I think that a 900 with improved aerodynamics, 6spd auto with double over drive, mild hybrid technology, an DoD, could get a very awesome mpg number, enough to shake the crap out of thoes Prius-loving people.
Even DoD with 6spd autos should get GM a much better mpg rating.

I don't think a truck with DOD or hybrid power will come close to a Prius/Accord Hybrid in milage anytime in the near future.

Jun 15, 2005 | 03:02 PM

#17

jg95z28

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Joined: Sep 2002

Posts: 9,705

From: Oakland, California

Re: Displacement on Demand

Quote:

Originally Posted by dream '94 Z28

Can someone clear up once and for all if cylinder de-activiation occurs at idle?

I didn't think it does.

My understanding is it occurs at highway cruising speeds. I believe there was a link to a white paper on it several months back.

Try a search on DOD.

Jun 15, 2005 | 03:03 PM

#18

dream '94 Z28

Registered User

Joined: Nov 2001

Posts: 1,646

From: Portland, OR

Re: Displacement on Demand

Quote:

Originally Posted by Darth Xed

That would solve the sound issue (if it existed), but you'd think that it would lose some of the MPG benefits....

Around the city yes. Part fo the reason I don't think it shuts down at idle is because there would be a hesitiation when starting from a stop as all de-activated cylinders come back online.

I also thought all the talk about the Magnum and 300C's DOD system was about it's highway gains, not the city number.

Jun 15, 2005 | 03:04 PM

#19

jg95z28

Registered User

Joined: Sep 2002

Posts: 9,705

From: Oakland, California

Re: Displacement on Demand

Quote:

Originally Posted by dream '94 Z28

I don't think a truck with DOD or hybrid power will come close to a Prius/Accord Hybrid in milage anytime in the near future.

Please. Prius/Accord doesn't get the mileage they claim to get either.

Jun 15, 2005 | 03:06 PM

#20

Big Als Z

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Joined: Mar 2004

Posts: 4,306

From: Jersey Shore

Re: Displacement on Demand

Quote:

Originally Posted by dream '94 Z28

I don't think a truck with DOD or hybrid power will come close to a Prius/Accord Hybrid in milage anytime in the near future.

No, but if GM could get a 350hp truck to get high 20's in mpg, it would be a bigger deal then an supereconobox getting mid 40's.

Jun 15, 2005 | 03:08 PM

#21

Chrome383Z

Registered User

Joined: May 2004

Posts: 2,043

From: Shelbyville, IN

Re: Displacement on Demand

Hybrid's aren't really that great. Not worth the High Initial Cost. But this has already been debated. I'll take the DoD with a nice Overdrive.

Jun 15, 2005 | 03:34 PM

#22

AronZ28

Registered User

Joined: Oct 2003

Posts: 1,276

From: Chattanoga & Franklin

Re: Displacement on Demand

So what does a DoD V8 sound like running on 4 cylinders with a loud aftermarket exhaust? Not very good, I'd imagine. All those rednecks will be made fun of for having trucks that sound like a fart cannon Honda