Turbo Lpg

[80' 427]

I have a good running 350 in my truck now but I keep thinking about going to LPG. Then one night I was reading a old street rodder that had a Ak Miller built 300 I6 in a rodster with a turbo on propane. So know I have amassed a pile of parts to convert my truck to propane with a turbo. I was given the turbo (gm4 off a 6.5 td) it is a little small but I am hoping for lowend power in the 1500-3500 range. Using a dodge cummins intercooler and a impco 425 and model e. Hope it runs good a makes it a great trailer puller even if it is a 1/2 ton.

 

[Hogback Fabrication]

That 425 Impco mixer is really going to choke that motor. I would consider running two.

 

[Hogback Fabrication]

I should've mentioned that Impco 425's flow 460 CFM @ 1.5" Hg (the pressure drop that 4 barrel carbs are measured at).

 

[80' 427]

I did know that and I know it will choke it a bit but in a blow through at about 14 psi it should be OK. The turbo will be the big choke but I am going to try it first then change what I have to. Talked to a lot of turbo guys and some are making over 2000 hp with a 750. I was just hoping for 400 or so. Does ok with the 250 or so I have now 400 would be a rocket.