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Caddy fuel conversion??


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Hello, anybody ever converted their Caddy to alternative fuels or bi-fuel like gasoline and propane?

I've read that carburated engines are easier but fuel injected engines are possible mainly if kept as a bi-fuel option.

here is a link:

http://www.rasoenterprises.com/index.php?option=com_content&view=article&id=53:conversion-payback&catid=57:conversions&Itemid=48

In another country I have driven in a Chevy truck that used gasoline and also propane with a flip of a switch !

Opinions or experiences??

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We have a member named Psycho from Germany if I recall that converted to LPG, Ill find the thread and post a link

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Does anyone know anything about these CNG/Propane kits? I am seeing that they for the most part utilize gas injection on the intake of the TB. Is this the common way and most efficient way to utilize these alternative fuels?

Caddy_Grill.jpg2008 DTS
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Great thread BodybyFisher !!

You are a true asset to this Caddy community.

Its neat to read about a successful conversion.

Something to think about.

Either way the Caddy is always a 'gas' to drive !

Thanks gold!

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Jeff, based on my limited understanding, "gas injection on the intake of the TB" seems to be the method applied to 'old school' carburetors not multi port fuel injection.

For the latter, the appropriate kit includes the 'plumbing' to mix into your fuel induction system and a separate CPU to manage the CNG/propane for a dual fuel operation (gasoline and CNG/propane.)

check these links out

http://www.technocarb.com/

http://en.wikipedia.org/wiki/Sequential_fuel_injection

http://www.technocarb.com/images/stories/ESIP-Eng-Brochure.pdf

Regarding efficiency, it seems that the conversion kit industry has become quite sophisticated.

Cheers !

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Jeff, based on my limited understanding, "gas injection on the intake of the TB" seems to be the method applied to 'old school' carburetors not multi port fuel injection.

For the latter, the appropriate kit includes the 'plumbing' to mix into your fuel induction system and a separate CPU to manage the CNG/propane for a dual fuel operation (gasoline and CNG/propane.)

check these links out

http://www.technocarb.com/

http://en.wikipedia.org/wiki/Sequential_fuel_injection

http://www.technocarb.com/images/stories/ESIP-Eng-Brochure.pdf

Regarding efficiency, it seems that the conversion kit industry has become quite sophisticated.

Cheers !

Now that is what I was looking for!

I assume that you have to drill and tap the intake to install the LPG or CNG injectors???

Caddy_Grill.jpg2008 DTS
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  • 1 year later...

Umm, Got us thinking again as we are in the UK and paying approx $12.00 a gallon which is not cool when you own a STS and a 7.3 Powerstroke!!!.

However we had been told to stay well away from LPG converted STS's???? I also notice there has been one on E-bay for months in immaculate condition and under £2,000 which he obviously can't sell....

I had LPG on our 7.5 Winnebago, which ran with much less power, same with our GMC Vandura 5.7 Starcraft dayvan, in fact the only LPG vehicle I've ever had that did run good was a factory produced Ford Falcon ute (pick up) which was a good job as it was solely LPG only (Straight 6 cylinder) I.E No petrol tank.....

The worry being if our Northstar fails the repair costs would be 3 times the car value!!! in the UK there is page after page of non runner LPG converted vehicles

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