Derale 16925 guys?
06-17-2012, 09:16 PM
#1
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Derale 16925 guys? I know there are a few guys on here with derale 16925 pushers. Are you guys using them as high/low fans, if so how? Is it an option in the tune? I've got EFI Live but my tuner uses hp tuners. If my tuner didn't use a COS, I'd load my EFI Live tune and mess around with it to find out. I just want to make sure everything's good before I head back down to get it retuned. Coolant temps are perfect with both fans on, but I don't know if they are on high or low. Before I put the derales in I has flex-a-lite pullers that weren't cutting it.
06-18-2012, 07:33 AM
#3
I just found the high speed turn on wire and the low speed turn on wire from my PCM and wired up my own relays. I do not have them wired in series to make both run at a lower speed like the factory fan setup. at idle my car will run cool enough to only need 1 fan running. as my second fan turns on at 180
06-18-2012, 09:26 AM
#4
I run twins through the factory wiring, able to control low and high speeds via the ECM, though, the caddy has 30A per fan circuit stock, so it was simple replacement, drop in.
06-23-2012, 10:54 PM
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I'm using the supplied relays which are getting their signal from the stock wiring. One fan from each wire, just like the factory dual fan setup. I haven't been able to mess around with the tune yet to see if the fans work on high/low.
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06-23-2012, 11:09 PM
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I am installing these fans now. I am mounting them to the front of my condenser, I know it's not ideal but I also have a Griffen aluminum radiator to help with cooling. I figured with 2200 cfm of flow from each fan that will help out as well. I hope to use the stock wiring to trigger the fan relays like you guys are talking about.
06-23-2012, 11:20 PM
#9
I am installing these fans now. I am mounting them to the front of my condenser, I know it's not ideal but I also have a Griffen aluminum radiator to help with cooling. I figured with 2200 cfm of flow from each fan that will help out as well. I hope to use the stock wiring to trigger the fan relays like you guys are talking about.
08-10-2012, 09:29 PM
#12
wiring help for dummies needed here for my twin derales.... The question is just about where Exactly to tap into for the trigger wires.
ok so.....do i simply take the factory white and blue power wires that plug into the stock fans (that have the connectors on them, after the fuse boxes and factory relays), and just cut and hook those up to the yellow wires on the derale relays for the 12v source (as the triggers for each fan), using the derale red wires for power obviously and then the orange wires out to the fans (with the fuses)?
or do i have to somehow find the wires Before they go into the factory fuse box/relays and cut them there and wire it all in?
And with both setups, just hook up the derale fan ground wires to the factory ground wires post fuse box?
Hopefully the first setup is acceptable as it would make things far easier but i wasn't sure if that would work since i'm almost using 2 relays per fan that way.
thanks a ton for any simplified, well explained answer you can give! lol
ok so.....do i simply take the factory white and blue power wires that plug into the stock fans (that have the connectors on them, after the fuse boxes and factory relays), and just cut and hook those up to the yellow wires on the derale relays for the 12v source (as the triggers for each fan), using the derale red wires for power obviously and then the orange wires out to the fans (with the fuses)?
or do i have to somehow find the wires Before they go into the factory fuse box/relays and cut them there and wire it all in?
And with both setups, just hook up the derale fan ground wires to the factory ground wires post fuse box?
Hopefully the first setup is acceptable as it would make things far easier but i wasn't sure if that would work since i'm almost using 2 relays per fan that way.
thanks a ton for any simplified, well explained answer you can give! lol
08-11-2012, 12:30 PM
#15
I'm running my Derales triggered off of the stock harness (high speed only, FAST XFI controlled). I simply used some Metripack connectors and made a plug and play setup, just clipped the factor fan connectors and put the metripack connectors there. Trigger and ground for the relays from the stock harness, plug and play, works like a champ. Though I will say, that pushing through the condensor, the airflow is cut way down through the radiator. I'm running a font mount turbo setup and if I'm leaning on the car at all it starts heating up to the 220's.
08-11-2012, 12:42 PM
#16
I'm running my Derales triggered off of the stock harness (high speed only, FAST XFI controlled). I simply used some Metripack connectors and made a plug and play setup, just clipped the factor fan connectors and put the metripack connectors there. Trigger and ground for the relays from the stock harness, plug and play, works like a champ. Though I will say, that pushing through the condensor, the airflow is cut way down through the radiator. I'm running a font mount turbo setup and if I'm leaning on the car at all it starts heating up to the 220's.
Tally, you should post that pic you sent as it was very helpful!
08-11-2012, 07:17 PM
#17
In case there's any others out there who are wiring challenged and learn more from pics typically lol 
just pop out the 3 factory fan relays and plug in the wire from your relay that needs 12v source as the trigger like this (not power of course). fyi, when your fans are triggered they will kick on high only at the same time like this. idk how to set up a parallel series to mimic the low/high factory setup so this i was told was the easiest way.
Thanks to all those who share their knowledge on this site!
just pop out the 3 factory fan relays and plug in the wire from your relay that needs 12v source as the trigger like this (not power of course). fyi, when your fans are triggered they will kick on high only at the same time like this. idk how to set up a parallel series to mimic the low/high factory setup so this i was told was the easiest way.
Thanks to all those who share their knowledge on this site!
08-11-2012, 08:44 PM
#19
I know when I had mine come on at the same time I popped fuses. I staggered the temp at which they turn on and the fuses are fine now. I wasn't aware that there was a high/low speed. I have them triggered off of the stock wiring and used the supplied relays.
08-11-2012, 11:18 PM
#20
Red wire goes to the battery (i have them mounted on the post next to the fuse boxes).
Black wire is ground
Orange wire (w/inline fuse) goes to fan power wire
Green wire is optional for a/c
Yellow wire goes to switched 12v source (as pictured)
so is that the correct spot to plug in the yellow 12v switched or did i misunderstand? i'm not all that familiar with this yet but i think i will know much more after this weekend! is the switched 12v actually a ground? i was just assuming it was power.