idea, 4 cylinder to 2 cylinder engine conversion

[arcosine]

If you cut two injectors on a 4 cylinder, you probably wont have much pumping loss, since the throttle will be wide open a lot of the time. Try driving at half the rpm normally to get a feel of the sluggishness. Sure, pulse and glide is better, since your eliminating engine friction during coast. It's hard to believe there are 121 posts on this thread and no one has pull the plug on the injector to try it.

[Frank Lee]

It's even harder to believe that of all the posts about people that have actually done it, you haven't found one of them.

Repeat after me: It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work. It does not work.

[arcosine]

Its funny that you list a 92 tempo with 69 mpg lift time mileage with only one fuel entry from 7 years ago. Maybe this car should be retired.
I liked how the guy took 2 pistons out of the accord. I drove my carburated 77 accord around a few hundred miles on 2 cylinders, improved mileage by 25%, reduced acceleration by 50%. It idled twice as fast, but 799 cc is not enough engine for normal driving, semi trucks were faster. It would be nice to have a switch to reactivate.

[Frank Lee]

The Tempo listing is funny because it's supposed to be; it makes the point of the folly of making mpg claims on inadequate data points and short fills. The numbers and the methodology of the data gathering are accurate- or rather, typical- but yet we all know that car doesn't average 69 mpg.

The injector disable, should anyone not believe what they find online, is easy enough to try for yourselves. I think perhaps if a person figured out the resistance of their injectors and stuck resistors in the injector sockets that the CEL won't come on.

[cRiPpLe_rOoStEr]

Getting a 2-pot with a turbo, or a supercharger (eventually both ), would be a good way to deal with the eventual need for the 4-cylinder power. With a supercharger, there is always the option to work around a clutch on its pulley to disable it when not needed.

Originally Posted by markweatherill

I just thought, I'm surprised I've never seen anyone suggest a four stroke to two stroke conversion.
And then I looked it up and it appears it's in theory feasible...

I have seen pictures of a Chevy small-block V8 converted to 2-stroke once, just can't remember where. But it's also a nice idea, I still consider 2-strokes a viable option.

[tony_2018]

I've read, a while back, that someone was trying to design what you had in mind. It worked like your idea but only when the car was in motion. So what would happen is this, if its a 4 cylinder it would shut off 2 or 1, if it was a 6 cylinder it would shut off 3 cyilnder, if it was a v8 it would shut off 4 cylinders. But because car companies caught onto the idea, and Honda got the jump on the game, I think the idea got squashed. If you can design a universal plan than it might work but this all comes down to the ecu programming.

[arcosine]

Cadillac had this engine in 1981, called the 8-6-4 engine. The problem was it had throttle body injection, so the unused intake ports puddled with gasoline.

Matt Garrett - Cadillac V8-6-4 Home Page

[elhigh]

^^
The V8-6-4's main problem was that its computer wasn't up to the challenge of controlling it. It was a brilliant concept but the technology just wasn't there. I think if they'd had solenoids to turn off the lifters instead of solenoids to disengage the valves' rocker arms it might have worked a bit better.

I think every single 8-6-4 I've actually clapped eyes on had had its modulation system deactivated, and the engine was locked into a V6 configuration. That's only been about three cars, but there it is.

[tony_2018]

I'm sure they can get it working now if they wanted to.

[tony_2018]

I'm certain that i can do a j swap conversion and keep the ecu intact but its just the wiring headaches that I will have to deal with. If I can bypass that my car would be saving gas and have plenty of hp to get around. Using the motor from the j35 it has cylinder deactivation plus eco mode.