Easy Jack, I don't generally get into legal discussions with people aliases...
I know a couple engineers as Navistar but none that I could credit with designing the 7.3 Powerstroke. My understanding is that much of the design is similar to Caterpillar designs...
As far as the SVO/WVO design; I spent a couple months online collecting the best information I could from the drivel on biodiesel.infopop and all the conversion "manufactures" designs. Most svo/wvo "manufactures" simply charge $3000 to ship $1500 in parts. Veggiestroke had a nice assembly of the pump and the filter mounted together that I reference in the design and I know that i have sent business their way for it. Mounting the check valves directly on the engine is a Veggiestroke concept but it certainly has some issues if not just in serviceability.
In the end the design that I post on my site will cost about $1500 if you buy a new tank and build the automatic controller included in the design. It works quite well and is suitable for mechanical people that are inclined to do it themselves.
If anyone wants to talk to me about this or any other design: my phone number is on my site and I make every effort to answer the phone or return the call if I miss it.
Leon Griffin
WVO Designs
