KevinR in this book-system of BenP's it is above all to be a system home-shop/garage buildable capable IF YOU FOLLOW THE PLAN EXACTLY that will be capable of being fired up, a few hours settled in and then go directly to loaded internal engine fueling.
Withe the physical size of it, and weight of it made of mostly thicker carbon steel propane tankage these "engines' would best be stationary electrical generators, water pumpers, air compressors, whole-house AC systems, Ag tractors, smaller engined pickup trucks 4, 6, even small V-8 (in-bed), trailer towed behind gasifiers in the engine range Jess Davis recommended. Too big for walk behind equipment.
Yep. BenP says on this one OPERATED WELL an 8 to 1 turndown ratio.
His expensive, and super expensive all-stainless steel purpose built systems had up to twice that turndown ratio.
None of these were every really appropriate, designed for vehicle use.
VesaM's all-SS units are. Heavy, heavy.
SS can be thin metals, weight reduced for vehicle use. Expensive metals then. And you will need a super welder equipment, welder-man, extreme gas-tight expansion jointing designing to not thermal expand/contract work-harden and SS panels, plates warp, wrinkle and gas leaks crack.
It remains very, very risky to Drive-On-Wood in most of Washington State. The four urban counties areas all have mandatory vehicle emissions inspections. They WILL see this - bust you for factory vehicle emissions tampering.
And in three of these four Urban areas the now programmed "greens", tree-huggers will actually flag you down, report you, or traveling around throw car garbage at you. You . . you . . selfish planet/tree killer, you.
This is no-joke real. HAS happened.
Ha! I have always told BenP to shy away from vehicle gasifing while in Washington or Oregon or California states.
Move to Idaho, Montana to do this safely. Do this then without the insane-Now'ers Inciters from physically following you home, and putting every possible county, state inspector onto your ass to harass you into their vision of a kinder, gentler, cleaner, more inclusive world. No joke here. Been done to me.
BenP now again lives outside these intense urban areas.
We have a rolling 25 years old emission inspection exception clause.
This 65 Mustang of his is deep into "classic vehicle" registration and state special plates licensing.
Still . . . . going into urban area "showing & telling" . . .
Why the extreme effort to make this one competently unseen, discrete.
Kirstian, his cooler system on this stand a bit higher older system vehicle is long parallel tubes completely under the vehicle. Bound to be some ground clearance compromised.
This 2+2 (two adults, two children) Mustang "coupe" was only ever intended to be a good paves roads vehicle anyhow.
Same time preiod here Ford made ans sold longer wheelbased Falcon sedans and station wagons for small families. Vertually the same drive train. Made and sold their first generation Ranger short wheel based 4x4 for extreme roads and off-roading. Same factory engine family, too.
All "classics' now too. Slice, dice, jack'em up as you please.
Hope this clarifies.
J-I-C Steve Unruh