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- From: lusky@ccwf.cc.utexas.edu (Jonathan R. Lusky)
- Subject: Re: Propane and Timed Electronic Injection
- Message-ID: <1993Jan27.041838.24282@ra.oc.com>
- Sender: usenet@ra.oc.com
- Organization: The University of Texas at Austin, Austin TX
- References: <C1H1vp.998@avalon.nwc.navy.mil>
- Date: Wed, 27 Jan 1993 04:18:38 GMT
- Lines: 32
-
- In article <C1H1vp.998@avalon.nwc.navy.mil> nasa@suns.chinalake.navy.mil (Chris Adam Thomas) writes:
- >
- >Propane has some advantages and some disadvantages as fuel for a
- >high performance engine. Timed electronic port injection of the
- >liquid would eliminate one of the disadvantages. I've never heard
- >of injectors that would operate at the pressures necessary (and at
- >the voltages and currents available from the ECM) for port injection
- >of LP. Has anyone else?
-
- Which disadvantage would it eliminate?
-
- My knowledge is in CNG, not LP gas... but here are some ideas.
- 1st) What is the tank pressure with LPG? Do you really want to run that
- much pressure to the injectors? To do FI with CNG, we first run thru a
- regulator to drop the pressure to 75-125psi, depending on the application.
-
- 2) How well does LP gas mix with air? I know methane doesn't mix with
- air that well. For CNG applications, we usually place the injectors
- fairly high up in the intake tract, either just above or just below
- the throttlebody.
-
- 3) BKM makes injectors for use with CNG. I know very little about them.
- I believe they will work with any ECM that can handle standard low-impedance
- gasoline fuel injectors, though.
-
-
- --
- --=< Jonathan Lusky ----- lusky@ccwf.cc.utexas.edu >=--
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