Spal fans won’t turn on
05-26-2018, 10:06 AM
#1
Racer
Thread Starter
Spal fans won’t turn on
Just finishing up my single turbo build. Installed Dewitt’s spal fans. Thought this was just a plug and play set up but they are not kicking on, temp gauge is getting up to 225. I have a canton coolant expansion tank which doesn’t have provisions for the temp sensor so it is unplugged. Not sure if that’s related or not.
Anyone have any experience with these fans? Still running the stock cal, want to get it running before taking it to the dyno.
Thanks!
Anyone have any experience with these fans? Still running the stock cal, want to get it running before taking it to the dyno.
Thanks!
05-26-2018, 04:49 PM
#3
Burning Brakes
Your tuner may have to adjust the fans to kick on earlier. I believe mine kick on at 180 * or so. I’ve got the Spal dual extreme high performance 12” fans and they move some air.
Last edited by junk c5; 05-26-2018 at 06:45 PM. Reason: Spelling
05-26-2018, 04:52 PM
#4
Team Owner
mine were plug and play.....I agree with the previous poster, plug in the temp sensor...how else will they know to come on??
05-26-2018, 04:59 PM
#5
Burning Brakes
I have the same expansion tank with no sensor and my fans turn on just fine. Without Going outside and looking, I’m thinking there’s got to be a temp sensor in the block somewhere
Last edited by junk c5; 05-26-2018 at 05:15 PM.
05-26-2018, 05:31 PM
#6
Burning Brakes
My front mounted 80mm build originally ran between 220* and 225* regularly. To me that seemed to high. I do believe LS motors are engineered to run that high but I felt more comfortable being at or real close to 200°.
To achieve 200° I did the following: I cut out all the factory radiator brackets and mounted the largest 2 1/2 inch thick Big End radiator straight up and down. I did the 12” dual Spal extreme fans, cut out the front license plate area in the bumper cover, installed a Trackspec hood louver kit, went to E85, turbo blanket, heat wrapped the down pipe, and made an aluminum pan under the bumper cover to direct air in front of the radiator. I also use water wetter . In bumper to bumper traffic on a hot day I’m generally around 200*. 185*ish at night when it cools off in Chicago.
To achieve 200° I did the following: I cut out all the factory radiator brackets and mounted the largest 2 1/2 inch thick Big End radiator straight up and down. I did the 12” dual Spal extreme fans, cut out the front license plate area in the bumper cover, installed a Trackspec hood louver kit, went to E85, turbo blanket, heat wrapped the down pipe, and made an aluminum pan under the bumper cover to direct air in front of the radiator. I also use water wetter . In bumper to bumper traffic on a hot day I’m generally around 200*. 185*ish at night when it cools off in Chicago.
06-04-2018, 04:27 PM
#7
Racer
Thread Starter
My front mounted 80mm build originally ran between 220* and 225* regularly. To me that seemed to high. I do believe LS motors are engineered to run that high but I felt more comfortable being at or real close to 200°.
To achieve 200° I did the following: I cut out all the factory radiator brackets and mounted the largest 2 1/2 inch thick Big End radiator straight up and down. I did the 12” dual Spal extreme fans, cut out the front license plate area in the bumper cover, installed a Trackspec hood louver kit, went to E85, turbo blanket, heat wrapped the down pipe, and made an aluminum pan under the bumper cover to direct air in front of the radiator. I also use water wetter . In bumper to bumper traffic on a hot day I’m generally around 200*. 185*ish at night when it cools off in Chicago.
To achieve 200° I did the following: I cut out all the factory radiator brackets and mounted the largest 2 1/2 inch thick Big End radiator straight up and down. I did the 12” dual Spal extreme fans, cut out the front license plate area in the bumper cover, installed a Trackspec hood louver kit, went to E85, turbo blanket, heat wrapped the down pipe, and made an aluminum pan under the bumper cover to direct air in front of the radiator. I also use water wetter . In bumper to bumper traffic on a hot day I’m generally around 200*. 185*ish at night when it cools off in Chicago.
To answer the previous questions, the temp sensor in the block reads coolant temp for the gauge. The sensor in the reservoir tank may just be for coolant level and not temp (I'm basing this on the fact that the DIC is now displaying low coolant level).
06-04-2018, 05:57 PM
#8
sensor in the expansion tank is just for the level mine reads the same message now that im running the moroso one and the fans were exactly the same as they always have.
06-04-2018, 06:45 PM
#9
Race Director
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did the stock fans work before the swap?... as stated above you may need to have the tune changed to turn them on sooner but if that isn't the problem then you may have to start troubleshooting the fan circuit, I have had trouble with the factory wiring on my car in the past
06-10-2018, 11:08 AM
#12
Supporting Vendor
If you have the stock calibration in the car, it's set to come on at 235 degrees so make sure your tuner adjusts it once you get it to them and have them test it manually using the VCM controls rather than waiting for them to come on at temperature.