Propane on 258

Webbinator

Webbinator

Well-Known Member
Joined
Mar 20, 2005
Location
York, SC
Ok guys, I finally got to take the jeep out for a good test drive since converting it over to Propane. This is on a 258 powered CJ7. I know a couple of you had expressed an interest in the components I had used on mine. I was pleasantly surprised on how well it did on the road. I easily cruised along with traffic with some peddle left to push. :D The components I used were an Impco CA 125 mixer, an Impco VFF30 lockoff , and an Impco Model J whateveryacallit. I got all this for free so I had to give it a shot. I was a bit nervous that it might be underpowered, but it seemed to work out just fine. I also took it back on my test trails behind my house to put it up on some steep angles and it worked out great. I do need to do some final tuning on it since it has a strong exhaust smell of propane. I'm looking forward to getting everything finished up so I can get it on some real trails to give it a good day of riding. I have photos of my setup I could send by e-mail if anyone is interested.
 
Yes Jeff, please send the pics to me. BTW it's a converter(Mod J) Easy way to remember. The Lock off does just that. It locks off the propane when vacuum is lost. The Converter converts it from liquid to a gas, and the mixer mixes the gas with air, just like a carb.
rjlmp@charter.net
 
pics here: http://wrangler.rutgers.edu/gallery2/v/7slotgrille/bigwaylon/Misc-Jeep-Pics/Webb/


and I'll go ahead and post 'em:


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Greg
 
Running a mixer slightly undersized can give ever so slightly better throttle "response", since you're in the meat of the mixer's flow range.

I bet he gets great range on a tank!
 
Really can't think of anything I would change. It runs great and has as much power as I need. And yes it is VERY throttle responsive.
 
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