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-   Cooling: Radiators/Fans/Controllers (https://www.lateral-g.net/forums/forumdisplay.php?f=89)
-   -   PWM cooling fan(s) control using ECM (https://www.lateral-g.net/forums/showthread.php?t=40215)

130fe 07-08-2020 04:04 AM

Andrew, do you think the C7 fan would work well with the LS3 GMPP fan wire (without PWM)? I was the one that asked you questions about the C7 fan dimensions on IG yesterday. I currently have the Entropy radiator (and it’s controller) am looking at other radiator/fan options.

andrewb70 07-08-2020 05:15 AM

Quote:

Originally Posted by 130fe (Post 704866)
Andrew, do you think the C7 fan would work well with the LS3 GMPP fan wire (without PWM)? I was the one that asked you questions about the C7 fan dimensions on IG yesterday. I currently have the Entropy radiator (and it’s controller) am looking at other radiator/fan options.

Chris,

The fan wire on the GMPP harness is just a ground trigger for a relay, and will definitely not work with the C7 fan. Spal does offer tidy little controllers for their brushless fans, which I'm certain will work with the C7 fan. However, they are not adjustable, and you have to make sure to pick the right one for your thermostat, otherwise the fan will run all the time. It's definitely not as elegant as what I did on Sean's truck.

Andrew

wiedemab 07-08-2020 02:32 PM

Quote:

Originally Posted by andrewb70 (Post 704830)
With my urging, one of my tuning customers installed a C7 Corvette fan in his 408 Windsor powered Ford F150 with the Holley Dominator ECU.

This fan works flawlessly with the Holley Dominator, which means it will work perfectly with all other Holley systems (excluding Sniper). Fan control was integrated with the AC system trinary switch, which enables different fan speed settings regardless of engine temperature.

He had his truck idling with the AC on in 95 degree AZ heat and the temperature never went above 186, with the fan hovering around 50-55% duty cycle.

Andrew

I may reach out when I get to this point in my build just to make sure I'm thinking of things correctly. First I'll read back through this thread! :)

I have the C&R w/ Spal setup that I plan to run in PWM with the Ford controller.... Should be fairly straight forward from a wiring perspective - - just want to validate my thinking on how to handle the signal from the AC...

andrewb70 07-08-2020 02:37 PM

Quote:

Originally Posted by wiedemab (Post 704891)
I may reach out when I get to this point in my build just to make sure I'm thinking of things correctly. First I'll read back through this thread! :)

I have the C&R w/ Spal setup that I plan to run in PWM with the Ford controller.... Should be fairly straight forward from a wiring perspective - - just want to validate my thinking on how to handle the signal from the AC...

Brandon,

Are you using Holley EFI?

Andrew

CamaroAJ 07-14-2020 06:10 AM

Quote:

Originally Posted by andrewb70 (Post 704830)
With my urging, one of my tuning customers installed a C7 Corvette fan in his 408 Windsor powered Ford F150 with the Holley Dominator ECU.

This fan works flawlessly with the Holley Dominator, which means it will work perfectly with all other Holley systems (excluding Sniper). Fan control was integrated with the AC system trinary switch, which enables different fan speed settings regardless of engine temperature.

He had his truck idling with the AC on in 95 degree AZ heat and the temperature never went above 186, with the fan hovering around 50-55% duty cycle.

Andrew

The C7 fan is a good fan for 16" and 600w. The CTS-V fan is a bigger option at 19" and 850w if you have the room for it. Tuning wise it will be the same as you can plug and play a V fan in a C7 with a custom shroud like Dewitts does. Thats the fan Stielow has used before as well. Either fan is around $300.

andrewb70 07-14-2020 06:53 AM

Quote:

Originally Posted by CamaroAJ (Post 704986)
The C7 fan is a good fan for 16" and 600w. The CTS-V fan is a bigger option at 19" and 850w if you have the room for it. Tuning wise it will be the same as you can plug and play a V fan in a C7 with a custom shroud like Dewitts does. Thats the fan Stielow has used before as well. Either fan is around $300.

The CTSV fan is impressive, but most classic radiator shapes don't have enough height to accommodate it without a custom radiator.

CamaroAJ 07-14-2020 11:33 AM

Quote:

Originally Posted by andrewb70 (Post 704989)
The CTSV fan is impressive, but most classic radiator shapes don't have enough height to accommodate it without a custom radiator.

a little cut and paste with some some juicy fruit and bingo, fits like a glove.

andrewb70 07-18-2020 11:10 AM

Quote:

Originally Posted by CamaroAJ (Post 705002)
a little cut and paste with some some juicy fruit and bingo, fits like a glove.

In case you haven't noticed, your fabrication skills are at least 2 standard deviations from the mean :D

Andrew

CamaroAJ 07-22-2020 09:39 AM

Quote:

Originally Posted by andrewb70 (Post 705097)
In case you haven't noticed, your fabrication skills are at least 2 standard deviations from the mean :D

Andrew

Instagram filters lol

durhamray1 08-08-2020 06:18 PM

8 Attachment(s)
Quote:

Originally Posted by andrewb70 (Post 688831)
I'm pretty sure you don't need the controllers with the brushless fans. They have everything built into the motor controllers, so you just need to provide power, ground, and a PWM- signal. Presumably the PWM- should be configured the same as with a C6 controller. This is somewhat speculative on my part.

Andrew

This is the information that I got from Spal on my brushless fan assy that I got from Wizzard Cooling , I think it answers all of the questions about wiring the internal PWM controller.


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