Picture the spinning weight assembly, but much smaller, horizontal and between your right foot, and the rack that adjusts the stroke volume (fuel delivery). Springs instead of gravity counterbalance the centrifugal effect of the weights. As the weights spin faster, they swing out and, via levers, pull on a spring, call it the flyweight output spring. Your right foot (via various accelerator linkages) moves an input lever with a spring at the other end. Call it the accelerator input spring. This spring opposes the flyweight output spring.

Both the flyweight output spring and the accelerator input spring are connected to the adjuster rack (which rotates the cylinders of injector pump, thus varying the stroke volume. but thats another clever story).

Here's the story- engine idling, you step on accelerator. The accelerator input spring pushes than the flyweight spring is pulling, and the fuel delivery increases, the car accelerates. The motor spins faster, the flyweights spin faster and pull on the flyweight output spring. This pull opposes your push and fuel delivery decreases and the acceleration diminishes until you have an new equilibrium- your foot is opposed by a harder pull from the flyweights (output spring) and you are moving faster, and neither speeding up nor slowing down.

Huge simplification, but that basically, is the basics of the control system.

__________________
CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times

It's hard to

more likely to

concentrate on

have an accident

two things

when you're on

at the same time.

a cell phone.

www.kiva.org It's not like there's anything wrong with feeling good, is there?

So for a constant input from the accelerator pedal, adding propane will seem to the governor like your car started going downhill. You will go faster, but the governor will pull back on the diesel as you accelerate.

__________________
CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times

It's hard to

more likely to

concentrate on

have an accident

two things

when you're on

at the same time.

a cell phone.

www.kiva.org It's not like there's anything wrong with feeling good, is there?

I have direct experience running propane in an OM603 engine. I wouldn't even think of using anything that didn't deliver the fuel in a progressive rising rate based upon the boost signal, or similar metric. The Powershot 2000 system operates like this, so that when you flip the master switch and toggle the system on, it will progressively introduce a metered amount of propane into the intake tract beginning at a set boost trigger point and rising up to its maximum delivery rate. I estimate that it was worth between 20--30hp in my ported and turned up 5.5mm pump 603 with the stock T3.

Yea, I W A N T to believe...... but pesky rational sense keeps up its imposition.


this thread belongs in the child - sub forum at the top of the page

The thing is, what you all keep insisting is doable here actually is on a small gasoline engine like an air coold VW
But doing a dirtbag -scrape together kit using a barbcue tank is illegal EVERYWHERE in the country except on private property or state or federal lands set aside specifically for off road use, like johnson vally in so cal.

The issue with propane on our engines is that pesky ball in the swirl chamber. You will get detonation not preignition.

__________________
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1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42