Dear EarthTalk: Is it possible to retrofit an old car with an Electric Vehicle drivetrain?
– Jerry M., via email
It is definitely possible to retrofit an old internal combustion engine car with an electric vehicle (EV) drivetrain, but the process can be complicated and expensive. In fact, it may be cheaper when all is said and done—not to mention easier and quicker—to just buy an EV.
If you’re undeterred and want to proceed with a conversion anyway, keep in mind that certain types of cars lend themselves to the process better than others. For starters, older cars that rely on mechanics more than computers are often easier to convert. Another consideration to keep in mind is that it’s easier to convert a car with a manual transmission since they use less power and are a lot less complicated than automatic cars. Likewise, lighter vehicles make better candidates for conversions given that less weight translates into greater range.
The first step in retrofitting an old car with an EV drivetrain is to remove the existing engine and transmission. This requires specialized knowledge and tools, so it’s important to find a reputable mechanic or EV retrofitting company to do the job. Once the old engine and transmission are removed, the new EV drivetrain can be installed. This typically includes an electric motor, battery pack, charger, and other components needed to make the car run on electricity. The placement of these components will vary depending on the make and model of the car, and the specific EV drivetrain being used.
One of the biggest challenges in retrofitting an old car with an EV drivetrain is finding the right balance between performance and range. The battery pack needs to be large enough to provide adequate range, but it also needs to be small enough to fit in the car without compromising performance or handling. This can be a delicate balance, and it often requires custom fabrication and design work.
Another challenge is integrating the new EV drivetrain with the car’s existing systems. This includes things like the brakes, steering and suspension, as well as the dashboard and other controls. In some cases, it may be necessary to replace or modify these systems to ensure they work properly with the new EV drivetrain.
Despite the hassle and expense, converting an internal combustion engine car over to electric is a great way to breathe new life into your old ride and reduce its environmental impact. In addition to being more efficient and producing fewer emissions than gasoline-powered cars, EVs also require less maintenance and can save drivers money on fuel costs over the long term. It’s also a lot less wasteful to electrify an old clunker and give it years and years of additional use than buying a brand-new EV, which requires the extraction and use of precious resources and lots of new carbon emissions to build and ship out.
Several companies, including Electric GT, Legacy EV and EV West, now manufacture conversion kits. Even GM and Ford are getting in on the act with the recent release of so-called crate engines that car owners (or their mechanics) can easily swap into the engine bays of corresponding models.
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