Question about 1993 Mercury Cougar

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1993 Cougar Specs


I would like to put on a hydrogen electrolyzer in the vehicle. It draws 20-32A of current @ 12V. What is either the rated current output of the factory alternator?? I looked in the haynes manual but they don't have specs. I will take rated power output of the factory alternator since the current would be easy to calculate. I also need to find out the maximum electrical load of the vehicle so I can figure out if there is room for 32A or (384 W) in the system. If the load is too great then we will put a bigger alternator in for this. Furthermore we will be removing the A/C system (with the help of a licensed mechanic for the freon drain). So if I can get help figuring out the draw of the A/C system for my calculations that would be much appreciated.

We will look at the battery to make sure that it is okay for this.

I know I am asking alot and please only reply with rated alternator output, the appropriately sized new one if needed and maximum electrical load of the vehicle and current draw of the A/C system

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  • yadayada
    yadayada May 11, 2010

    the rated ouput of the alt is stamped on the case, it varies from vehicle to vehicle according to what engine, and accessories installed like AC and other electrical draws. I can tell u right now u are going to have to install a bigger capacity alt.


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I made an electrolizer my Corolla and a smaller unit for my 150cc scooter. I got tons of bubbles so I expected stunning fuel consumption. In the end I chucked them out because they made no difference either to the power or the consumption. Remember, your alternator will be working flat out all the time to keep up with the energy needs and this alone will affect your consumption. Secondly, your engine management system will notice that your car is running leaner and will richen the mixture to compensate. More fuel consumption. You might find that you will put a lot of effort in for little or no return. The only solution for high fuel consumption, apart from a properly tuned car, is a lighter foot.

Posted on Jan 21, 2009

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