The fans bolt neatly up to the Mishimoto radiator with zero stress. The fan occupies a lot of lateral and vertical space in the radiator area, but not as much depth as the OEM units. This ensures that the radiator sees the maximum volume of forced air across its core for the most efficient heat exchange. The shroud covers the entire surface of the radiator, and weatherstrip tape provides a positive seal. The Mishimoto fans are twin units housed in their own custom shroud which pull up to 2300cfm of air across the radiator. Way better than the at-home surgery kit or the imitation Flowbee we also got from Facebook ads. We made our splices using some cold-melt, heat-shrink solder connectors we got from a Facebook ad. Disconnecting the temp sensor on the radiator defaults the fans to the on position, and you can use a test light to confirm polarity. You’ll also need to confirm which of the wires heading to the fans is hot and which is the ground so the new fans run in the proper direction.
You’ll need to do some simple wiring to install these fans, so clip off the connectors from the old fans and leave a bit of wire to work with. So, we threw our hardware in a dish of white vinegar overnight, followed by a quick trip to the media blast cabinet, then a quick soak in oil. Typically we use something like CRC Rust Converter for these small hardware jobs but it was the weekend and we were out of CRC magic sauce. Sure, we could just replace them with common hardware, but there wasn’t much structural damage, and we like the captive washers found on the OEM bolts. We used this opportunity to clean up some rusty fasteners.
Here are a few tips to cut down that time even more.Īs with radiator removal, you’ll need to pull a few brackets in order to access the fasteners securing the fans. While we reinstalled those old fans at the moment in order to get the car back in service, we also placed an order for the matching Mishimoto fan shroud kit designed for our new radiator.įan installation in an SW20-chassis MR2 is a quick and easy job that can be completed inside an hour. For those of you playing along at home, you may remember the poor state of the original fans in our 1991 Toyota MR2 Turbo that we discovered when installing a Mishimoto radiator.