I own a 1977 240D ....would like info on how to install propane injection?

 

I experienced some problems starting my '84 300SD on the cold winter days in northern Wisconsin this past year, so I was looking for information on something called FlameStart that is apparently used on diesels in Scandanavia. The propane header caught my attention.

I understand that the injection of propane does not really reduce fuel consumption, but does it make the engine easier to start in very cold weather? Anyone have experience?

 

I have run several turbo and non-turbo engines with propane injection. In my experience, propane injection will slightly improve fuel economy. For example, running 9 gallons of diesel fuel and 1 gallon of propane got me a few more miles than running 10 gallons of diesel only, even though the diesel/propane mix has less total energy.

I believe that this is because the very lean charge air/fuel mixture improves the main combustion process a small amount. I found even fogging small amounts of DIESEL fuel in the intake gave slight improvements in both base specific fuel consumption and emissions. If the price of propane is substantually lower than diesel fuel,propane injectionmay be worth the trouble.

The benefit is a little more with a turbocharged engine than it is with a non-turbo.

 

i just bought a 1984 mercedes 300D.. i dont know much about them yet but i bought it already with a propane kit and cold air intake on it.. wat are more modifications i can do to it to increase power and fuel economy...

i was thinking of a larger turbo or different injectors.

Give me some suggestions. i"m new at this

 

I'll second forcedinjections statement. One of the main reasons on the economy side of useing propane or Nat gas I've seen from working in the natural gas fields was their was an abundance of it and diesel fuel had to be hauled in.Diesels do burn both nicely and very clean. The easiest set-up was to burn 5% diesel the rest gas this was not hard due to this motors ran at a constant RPM so over fueling and blowing the head was not a problem. I have seen diesels running on Nat Gas only but the injectors had to be removed and spark plugs and a distribitor added for spark$$ Unless you can get any of these much cheaper than diesel fuel set-up costs would never be returned, and with out a safisticated system over fueling and blowing it up is much easier. Also controling a gases fuel over verying rates is hard to do, over fueling is easy. This practice for the road is best used in competion for pulling or drag racing were it is under short duration under predicted RPM's. I have seen a pulling semi useing propane forget to turn it off when he hit the end of his pull. I filled the exhaust up with propane then when the clutch was pushed in and the rpms came up igniting the exhaust completly blew off the truck cause a lot in damage. He also was injecting nitrous which magnified the explosion. So the short of it for economy unless the propane is free paying for the equipment will not happen also get into a wreck and it is not displayed that it on board can get you in a lot of trouble