im currently in the process of modifying some lt1 fans to fit on my nephews 88 camaro.
was wondering if i should run 2 30 amp relays 1 for each fan and run off of a temp sensor to kick on the relays.
i will be running fans at high speed,it gets to hot here in Dallas,Tx not to have them set for high speed.
thanks
Ed

 

I run 2 relays on my setup and i prefer it that way. For one thing, if the car has ac then u need to have the ac compressor trigger at least one fan when it comes on. 2 relays makes that easier. Also with 2 relays there is far less chance of having both fans quit on him at the same time.


oops almost forgot. Yes you should run a temp sensor. and use it to trigger both relays.

 

thanks
i figured as much...
i will have to post up my pics on my modded fans for this install its pretty BITCHEN
not sure why i see so many folks having such a hard time doing this mod.
lol

 

agreed, 2 relays, both wired to the temp switch with one wired into the ac as well.

 

I have the LT1 fans in my car and I wired them up with 2 relays.

 

I run the lt1 fans with a Flexalite fan controller it works perfectly, no other parts needed, everything to control the fans is there. I like being able to set the on and off temps for the fans as well as the fact that this controller does not hit the electrical system with a full load start up when the fans kick on. Worth the money in my opinion.

 

Did you use the 31163 (screw in temperature sensor) or 31165 (push in probe).

 

I just burned a chip with fan on/off temps that I want to use. Once I get my car out this spring I plan on having the second fan turn on with a switch in the cylinder head.

 

The push in probe, 31165.

 

Nice, thanks

 

No problem, also, I bought 2 new factory connectors to plug into the fans plugs by getting them from Rockauto.com and they weren't expensive at all. Then I used crimp connectors to hook the wires from the controller wires for plugging into fan plugs, made for a neat and easy install. Remember to hook direct to the battery for the main power wire and good grounds.

 

That's great advise, I appreciate it. Are you run A/C? If so, does the length of the temperature probe touch the condenser? The rad and condenser are quite close together!

 

No, the probe does not come through the other side, if it did, just pull it back some to avoid that. Right now I am not running a/c but it is my plans to do so with a Sanden small compressor and some custom lines. The controller has directions for hooking it up for a/c so the fans come on when you turn on the a/c. Like I said, it is a great controller, easy to hook up,easy adjustment and has been reliable since I put it in 3 years ago now.