Dual Fuel on a '88 F250

GregonVI · #1 (**permalink**) 09-04-2012, 10:50 PM

I just purchased an '88 F250 4X4 351 5spd that has a full propane conversion, for greater flexibility I would like to convert it to dual fuel. The installer used an Autotronic 5910 Dualcurve and I am looking for info from anyone that has expirience with these units.
From what I can see on page 7 of the installation manual:

http://www.dualcurve.com/5910-INST.pdf

all I need to do is wire in a switch and I should be already to go, can anyone confirm or add to this.
I was also thinking that as these unts are no longer available new maybe I should try and find one or two extras in case my dies.

Thanks, Greg

gasman6674 · #2 (**permalink**) 09-06-2012, 12:38 PM

If the gasoline injectors, fuel pump and tanks are working go for it, you a 3-way switch that will allow you to switch back and forth. What mixer/system does it have on it?
If it is an Impco CA425 you will need to rig up a solinoid to apply vacumn to the top of the air valve when you are on gasoline or it will run really rich due to restricted airflow.

GregonVI · #3 (**permalink**) 09-09-2012, 10:40 PM

Yes it has a Impco CA425M-2 mixer so that means that I should be good to go

. Thanks for your help and I may ask more questions when the install time comes.

Greg