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Originally Posted by jethro_3
Has anyone done the electric fan modification? What parts are needed(list the part numbers if possible), how long did it take, and what type of gains did you see? Did you have to fabricate anything your self? Any new swithes on the dash? New thermostat? Any fun/weird things to expect/run into? Total cost in parts? Thinking about getting this done before I get a Nelson tune.
Is it really worth it?
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I'm running a set of LT1 duel electric fans from a camaro. Since I was getting a Nelson tune, I got Allen to turn the fans on in the pcm at a certain temp. I also ordered a fan harness from him that uses three relays, and has every connector to connect my fans to the the pcm and the ac wire. I had to fab up two stainless steel pieces to hold the fans in place, and mounted them with four screws. It took us about 30 minutes to install everything. Gains are most noticed when the temps are higher and the stock clutch fan would normally be engaged. I'm not running a hard switch to turn them on and off, but one can be fabbed up easily. I was running a 160 stat anyway. Nothing wierd to run into. Its a pretty simple install. All in all, I have about $170 in it, which includes the fans for $70(ebay) and the Nelson harness which includes everything to hook them up $100.(all connectors, relays.)
If you're already getting a Nelson tune, just get him to turn on the fans in the pcm. If you don't get a Nelson tune, you can still run the fans. You will need to get a electric fan installation kit(flexalite makes one) and you will need some end connectors that fit the lt1/ls1 fans.
It's a really good mod to do, and really affordable compared to buying the flexalite fans($300+).
If you have any questions I might have missed, just post up and I'll be happy to help you out. Nelson sends a fully detailed/pictured diagram on how to hook up his harness to the fans. I'll try to get some pics up for you.