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Originally Posted by Hersbird
Both were 454 Chevy motors one in a 1984 motorhome and another in a 1996 one ton crew cab pickup. They both were actually dual fuel so I guess technically hybrids?
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Not exactly hybrids
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They each just had a single simple switch on the dash to switch from unleaded gas to propane. That was good because the fuel injected petrol system was better from a cold start or pulling a hill, but hit the switch on the fly and it changed over without a hiccup.
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Vapour-phase propane injection I guess.
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The motorhome I didn't have long, but sold it to a poor dude who was living out of it, and swapped the engine supply line so it could feed the house loads because I had just filled the bigger motor tank. He didn't know the engine line was unregulated (or set at a much higher pressure if it was) so the 30,000 btu furnace became like a 200,000 btu furnace and burned it to the ground.
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Most likely it was regulated at a much higher pressure.