Zell

iTrader: (2)

Hey Guys,

I thought i would ask the 3rd Gen guys first as the part im having trouble with is out of an FD3S.

I have a FC3S with a vmount setup which is using a FD alloy radiator, and ive heard good things about the stock fans and got hold of some for next to nothing, now im having trouble wiring these guys up... i cant even get them going let alone pick the speed i want. I plan to use my power FC to control them through a relay but if someone could tell me how to wire them up to full speed that would be greatly appreciated.

Now these are out of a Jap spec car, and all i can tell you is the colours of the wires coming from the fan motors which are.... Black, Blue, Yellow and Green.

Thanks

scotty305

iTrader: (2)

ASSuming the wiring on your fans are the same as the USDM fans, Black and (Blue w/ Orange stripe) are ground. (Yellow w/ White stripe) and (Red w/ Yellow) should be power.

These are the wire colors in the body harness, if you only have a fan there's no guarantee that Mazda used the same color on both side of the connector. It would be a very good idea to double-check on a working FD.

Using a relay is a good idea. Remember the fans draw a lot of current when running (exact numbers are in the Mazda factory workshop manual), but you should look for a relay that is rated for twice that amount. There is a very quick spike in current when starting the fan from a complete stop, it will draw about twice the normal operating current each time the fan is turned on.

PS: OEM fan relay info here:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/2-trigger-cooling-fans-462760/

Zell

iTrader: (2)

Thanks dude, now all i have to do is fine someone who has a FD so i can look at the loom side of the plug.