Re: OT.. souping up a truck

Posted by buickanddeere on August 22, 2005 at 19:53:34 from (216.183.130.41):

In Reply to: Re: OT.. souping up a truck posted by Tim Shultz on August 22, 2005 at 19:24:56:

Tim, you are getting some facts mixed up here.
Well duh, of course the automotive factory system runs one fuel or the other except for a split second during transition.
GM sold factory dual fuel gasoline/LP or gasoline natural gas pickups and autos.
Ford even had a dual fuel engine that used a 2nd set of port injectors. The gasoline was isolated and liquid LP was squirted into the intake port instead of gasoline. That engine did increase a few horses but certainly not 60HP.
Industrial spark ignition engines can be had with liquid LP or high pressure natural gas injectors.
Then there is pilot ignition using natural gas or LP in diesel engines without using spark plugs in a true dual fuel mode.

Otherwise in every other vapor feed system switching off the gasoline onto LP or natural gas reduces engine HP.
When you started this thread you were talking about a tinkered up fire hazard such as a BBQ tank & regulator. Feeding gaseous LP into the air cleaner of an engine that wasn't mentioned being a turbo diesel.
There has to be something wrong with that buddy’s dual fuel system.
Factory computer calibration puts gasoline engine at full power into an over rich mixture that reduces peak power a few percent from ideal.
The extra fuel does burn cooler and the unburned fuel does help carry away combustion chamber heat. This heat removal and rich mixture reduces the tendency of detonation.
The over rich mixture also has too little oxygen to light off the cat converter with as well. Otherwise a full power sprint would melt the cat converter.
Adding more fuel to such a system will only make the over rich mixture even richer. And reduce power farther.
So tell us the whole story as you see it and somebody here will get you all straightened out. I have to wonder how this long gone buddy has more credibility that the various experts here.

Follow Ups:

• Re: OT.. souping up a truck Tim Shultz 20:13:14 08/22/05 (3)
  • Re: OT.. souping up a truck buickanddeere 13:55:15 08/23/05 (2)
    • Re: OT.. souping up a truck buickanddeere 20:41:09 08/23/05 (0)
    • Re: OT.. souping up a truck KIP in MX 16:51:44 08/23/05 (0)

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