Modern cars use time delay relays for certain functions, but they are a rarity on older vehicles even if they have had an EFI swap. That doesn’t mean you can’t add this functionality though, and in this video from the gang at Holley you’ll see Jeremy showing how he’s used them on his own Fox Body Mustang. Using MSD’s solid state relays, which have a great layout and tons of flexibility, you can go even further by using a time delay relay in the trigger circuit. If it sounds complicated, it isn’t and Jeremy will show you just how to pull it off on your ride.
I’ve got a couple of MSD solid state relays that we are going to use on a project coming up and looking at this video makes me want to add a time delay to the system to allow me to use the power windows for a time after shutting off the key, just as an example. But there are a bunch of ways to use them depending on what you are trying to accomplish.
Do you want to have certain systems, like your cooling system or turbocharger oiling system, to continue to run after power is turned off? The answer is in a time-delay relay. Follow along as we show you how we used MSD’s Solid State Relay to keep this hot Fox Mustang’s fans going after the engine is shut down. https://www.holley.com/products/elect… https://www.holley.com/products/elect…