putting a fan on the air filter

[chessie4905]

4 or 5 leaf blowers...hmm maybe hook them up to the solar panels and look for a hill on a sunny day.😂

[dtcerrato]

Excellent write up dtc!

The issue is available air to mix with whatever fuel is in the cylinder.

All the air is handily used by the diesel, which has more btu than propane, any smoke indicates that all the air got used, and there was fuel left over.

A busnut after more power, needs to find more air.

The fuel part is the easier job.

Happy coaching!
Buswarrior

Thanks BW

One other thing that I remember about diesel injection when you said diesel  has more btu than propane - was that the propane probably ignites faster thus allowing a more complete burn (besides combustion) of the diesel.
And another point I need to make is while on that lloonngg hill in a head wind in maybe the next higher gear & if not all the way up at least farther up before a downshift so as not to lug... there is truly less (if any) smoke!
Scott Crosby is the author of this DIY propane injection. I had the advantage along with pyrometer monitoring over long distance to play & learn a lot at a total price tag for the injection system of under $50 (not including the dual pyrometers & gauge of coarse)

[chessie4905]

Could be if you doubled the amount of propane injected, there would be more benefit. Were you using gas or liquid injection?

[sledhead]

I installed a propane injection kit that was $625 way back in 2011 or so and as Dan it never would lift the front wheels off the ground but yes it made a difference on the hills and I could adjust the amount and the pressure it would start up and run . this was on the 6v92ta on the mci
I kept the kit but I do not need it on the cat as it has no problem doing a wheelie

http://www.dieselperformanceproducts.com/

dave

[luvrbus]

Propane will take a toll on the 2 stroke engines,a tired and wore out engine it is ok to use a little  I would never use it on a good engine,Scotts setup has been around since the 70's when No 1 fuel was on the way out he just copied the system.HEB in Texas had it on all their 6500 GMC trucks with the 238 hp 6L-71 engines it came and went       

[dtcerrato]

We injected vapor from a bbq tank using a 12V solenoid at the intake before the blower. using an acetylene regulator to choose the pressure wanted through a 1/8" orifice. We were using 11psi which dropped to 7psi while flowing - hardly any flow to speak of sooo if one wanted to jack it up I'm sure you could get all kinds of results.

[someguy]

The blower on a GM 2 stroke diesel is designed to blow a substantial amount of air right through the combustion chamber when the piston is near BDC in order to evacuate all the exhaust gases.   That is how the combustion chamber is cleared before the piston reaches TDC.  The combustion chamber needs to be full of fresh air by the time the piston reaches TDC.

If you injected propane into the intake air stream, some of that propane is going to blow right through the engine without being burned.   This doesn't happen with diesel fuel because the injection event occurs near TDC, nowhere near when the blower is clearing out the combustion chamber.