Previous in Forum: Trailer Riddle   Next in Forum: Salmonella bacteria
Close
Close
Close
6 comments
Member

Join Date: Mar 2007
Posts: 8

CNG and LPG Compatibility for Cars

03/30/2007 1:11 PM

Hi,

I'd like to know if a car that has been modified to use CNG can also use LPG.

I'm considering converting my car for CNG use and this info could help me to decide because dual use means easier sourcing of fuel.

Also what are the other issues involed. e.g. Safety

Thanx

Register to Reply
Pathfinder Tags: alternative fuels car CNG LPG vehicle
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru

Join Date: Nov 2006
Location: KnoxTN
Posts: 1485
Good Answers: 6
#1

Re: CNG and LPG Compatibility for Cars

03/30/2007 9:48 PM

"I'd like to know if a car that has been modified to use CNG can also use LPG."

The carburetor will likely have to have additional modifications for LPG.

__________________
Do Nothing Simply When a Way Can be Found to Make it Complex and Wonderful
Register to Reply
Participant

Join Date: Mar 2007
Posts: 3
#2

Re: CNG and LPG Compatibility for Cars

03/30/2007 11:37 PM

Dear,

CNG (compressed natural gas) is basically Methane CH4 while LPG (liquefied petroleum gas) is mixture of Propane C3H8 and Butane C4H10. Both have different calorific value and thus need different air fuel mixing ratio for proper combustion.

Both fuels could not be handled by one kit, you need two separate and dedicated kits for each fuel with interchange switch.

Abdul Rahim.

Register to Reply
Anonymous Poster
#3
In reply to #2

Re: CNG and LPG Compatibility for Cars

03/31/2007 4:40 PM

Stan, by "kit" he means fuel cylinder, control valves, tubing and mixer(carburetor). The mixers can be mounted in series to simplify the induction piping and to preclude having to switch throttle linkages too. There is even a LPG mixer that is built into an air cleaner housing that mounts right onto a gasoline carburetor. If there is a CNG mixer that is shaped like a gasoline carb, that would greatly simplify your install.

Register to Reply
Guru

Join Date: Mar 2007
Location: at the beach in Florida
Posts: 31321
Good Answers: 1733
#4

Re: CNG and LPG Compatibility for Cars

04/01/2007 11:05 AM

LPG basically has more btu, therefore a smaller jet size is required....But you should be able to integrate the two systems, with a little ingenuity...If I had to choose between the two, LPG is preferable...More bang for buck...

__________________
Break a sweat everyday doing something you enjoy
Register to Reply
Anonymous Poster
#5

Re: CNG and LPG Compatibility for Cars

04/02/2007 6:46 AM

Why not LNG?

Register to Reply
Active Contributor
Israel - Member - New Member

Join Date: Jan 2007
Location: Israel
Posts: 18
#6

Re: CNG and LPG Compatibility for Cars

04/02/2007 6:52 AM

Why not LNG?

__________________
I ask a question? I receive the answer? I react......:)
Register to Reply
Register to Reply 6 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Copy to Clipboard

Users who posted comments:

Abdul Rahim (1); Anonymous Poster (2); SolarEagle (1); Stirling Stan (1); vdik (1)

Previous in Forum: Trailer Riddle   Next in Forum: Salmonella bacteria

Advertisement