This bi-directional alternator fan is expertly created for GM 10Si and 12Si alternators, making it the perfect solution to keep your alternator cool, regardless of which direction it spins. This feature is particularly useful in custom projects where engine setups may not follow standard configurations.
Measuring at 5-9/16 inches in diameter with a 17mm bore, this fan is specifically designed to fit seamlessly on our GM-style alternators, ensuring you get the best performance possible.
Unsure if it matches your existing alternator setup? It's simple to check: look for a dish-like feature in the center of your current fan that points towards the alternator. This design is a good indicator that this fan will work for you.
In various installations, especially custom builds, the alternator may run backward. The beauty of this bi-directional fan is that it allows for effective cooling even if your alternator is spinning in the opposite direction. Importantly, an alternator operates efficiently no matter its rotation, so having proper airflow is crucial to maintain optimal performance and longevity. This fan guarantees such airflow, keeping temperatures down and ensuring reliability.
Q & A FAQs
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Q: Doesn't the alternator run backwards?
A: Yes, in several of these projects, the alternator indeed turns in the opposite direction. But don't worry—an alternator will perform just as well in either rotation. -
Q: Is cooling an issue when the fan runs in the wrong direction?
A: In most cases, not really. The fan still does its job, although it operates with reduced efficiency. Plus, the alternators in our projects are mounted to a metal plate that serves as a large heat sink. We also provide a special bi-directional fan that maintains efficiency regardless of how it's rotated, so you'll still get the cooling you need! -
Q: Where can I find a reverse fan?
A: Look no further than TheEpicenter.com! If you’re in the market for a true reverse direction fan, you might find them on '65-'69 Corvairs. Just keep in mind that those fans come with an integral pulley that's not removable and might not be the right diameter for all applications.