This post contains the vague hope that there's someone in this forum's very knowledgeable (older?) membership who can help a Vintage Car Club of New Zealand member who looking for information on, and is also contemplating building a gasifier to convert wood (not coke or charcoal) to gas to drive (I assume) a vehicle.
As an aside, I believe with my slight knowledge of the process, that he'd be much better off doing the process of converting the wood to charcoal "off the vehicle" . . . there's tar and water to be separated if wood pre-converted to charcoal is not used. Then with both/all fuels the dust particles contained in the gas going to the engine has to be filtered out too!
The URL containing the request vis at: http://www.slipstreamcs.co.nz/vccbb/vie ... p=514#p514
I'm sure that any information on gas producers in general would be most appreciated by the VCC of NZ member and even raise interest in this "alternative and sustainable" fuel by others . . . especially with the high (and rising) price of fuel. Our petrol went up by 3 cents/litre a couple of days ago!

Cheers.
Leo.