Here is a dumb thing, it is seemingly impossible to purchase a Spal brushless fan by itself anywhere on the internet. It seems they used to be everywhere and they have all ghosted.

Anyone have a source?

I'm sure DeWitts will sell me one, I was just surprised when I couldn't find it at Summit, Lane, or anywhere else where they had been listed before.

Semi related, I have the GM 600 watt fan in my hand. Part number 23376530 It is absolutely a Spal unit, their name is all over it. Not sure if that is common knowledge or not.

The fan blade measures 14 1/4"

The meat of the shroud is 23" wide and 13 1/2" tall. This would work really well on a 24 x 16 core.

https://s3.amazonaws.com/rp-part-ima...ab6a48f23d.jpg

Doesn't Holley sell Spal fans?

I just checked, and I see what you're saying.

It's hard enough to find info on the brushless fan lineup, let alone find somewhere to buy it!

Wizard Cooling has a bunch for their radiator setups, but don't list them individually. Found one 16" puller and one 12" pusher on Kartek.com

Story is that Spal doesn't have any faith in the general publics ability to properly mount these fans. I didn't get a technical explanation. :rolleyes:

I got the one I needed ordered.

Donny,

Do you know the OEM application for that fan?

The brushless fans are easy to spot because they have the heatsink on the motors and the big, round Yazaki connector with two big wires and a small wire for the PWM signal.

Andrew

Found it. Looks like C7 Corvette.

C&R makes C7 Radiators and they will sell the little aluminum tabs that can be easily welded to any aluminum radiator. That is what I did with the C6 fan on my Cougar.

Andrew

So Andrew,

The brushless Spal fans have the PWM built in to the motor housing, eliminating the need for the C6 controller?

I'm just trying to get an idea of wiring, and would love to eliminate the C6 controller of I can.

Thanks!

Yes, the C7 fan and the Spal brushless have the controller built in. You still need to send it a signal though and I do not know if they require the same signal.

They both appear to take the same Yazaki connector and they are available as a kit on ebay pretty reasonably.

That is my understanding. I do not have first hand experience with them, but this thread has all the relevant information.

Although, if you already have a C6 controller and a good fan, I see no reason to change.

Andrew

Donny,

As I understand it, that big Yazaki is a USCAR standard, which explains why they are readily available. I've seen them on many makes and models.

Otherwise, sourcing Yazaki connectors and terminals is nearly impossible in the US. I went down this rabbit hole trying to source new connectors for my Toyota EPAS science project.

Andrew

Thanks, I do not have the C6 controller yet, plan on using the Holley Dominator like you, just wired directly to the fan.

Hmmm, I'd been planning to run the C6style controller through my Holley ECU on my dual SPAL setup by Ron Davis but I wonder if SPAL makes a brushless that would bolt in place of the older style fans... would be much cleaner.

From what has been posted earlier in this thread, I see no reason why the Dominator can't work with the brushless fans. As far as brushless fans that take the place of the older dual fans, you will have to dig deep into the Spal catalog.

The trend that I am seeing with OEM applications is toward one large 600 or 800watt fan (the C6 fan is 400watt).

Andrew

Yeah, I'm only seeing 12 and 14" fans. I'll give Ron Davis a call.

I will be experimenting with a Chrysler hellcat brushless
Fan and e67 gmpp controller. I really hope it will actually work as I got the fan already mounted in my 68 lsa camaro. The hellcat brushless fan is looking for this signal: 12V PWM active LOW, 100hz. 10%DC is OFF, 90%DC is full on.
Don’t have acces yet to hp tuner or efi live to unable the pwm signal from discrete in my e67 controller. And from what I understand, the frequency can be altered with a efi live or hp. Is there anymore guys on here that got the brushless fans to work??
The hellcat fan is fairly inexpensive from dodge and it’s proven to work well without issues in hellcat family vehicles.

First post on the forum, and forgive me if I have missed this after reading through the entirety of the thread, but is it possible to still utilize the C6 PWM controller without an a/c pressure input? I do not have an a/c system installed on the vehicle.

Yes.

Andrew

This thread has been a wealth of information so thanks to everyone for contributing.

I have a Terminator X Max ECU, C6 fan, and Dorman 902-310 relay (mopar relay). I have tried a few different frequencies and have settled on 128, but there is a pretty noisy buzz from the fan. At 50% duty the fan and buzz noises are about equal, but below 50% the buzz is a bit annoying. Does the C6 relay have the same buzz? Anyone think it’s the mix of the Dorman relay and the C6 fan creating the buzz?

The C6 fan controller makes zero noise. I have never used the Dodge controller.

Andrew

Has anyone been able to find where to buy Spal brushless fans?

It's been next to impossible to even find any specs on them!

Thanks!

I think C&R is selling them.

Don

These guys have Spal specs:

https://wizardcooling.com/spal-brushless-fans/

Don

Fan Specs?
 

After reading roughly half of this thread the info is amazing and want to thank everyone that has taken the time to post. My problem is i can't find a definitive answer to the frequency question for the fan I want to use in my Hemi conversation into my 1984 Dodge ram. I am using the GM (spal written all over it) fan part number 23455465. See pic of fan can someone please give me the correct numbers for controlling this fan? Also the mating plug that is needed.Thanks in advance.

The blue Spal mating connector will work.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Earlier in this thread there are specification for the C7 Corvette fan. My gut tells me they should work with this fan.

Andrew

Good find Andrew!

I’ve read through this entire thread, more than once, and I think I’ve retained most of the information. But, what I don’t completely understand is how to make multiple systems work together, for example: GMPP crate engine controller, VA trinary switch, DCC PWM, Dual Spal fans. Does anybody have a wiring diagram for this combination that they could post? Seems like this is popular combination of parts. And a follow up question would be if somebody used a Speartech or PSI harness instead of GMPP would that change anything? Thanks

When you use the DCC fan controller it is completely standalone and not connected to the ECM. The DCC instructions tell you how to interface to the trinary switch. It’s pretty straightforward. The fans connect to the DCC controller. The ECM fan relays are not used.

Don

Have you used one of the DCC controllers Don ? Did it work well?

Got it, thank you. What I didn’t realize was that the DCC and the GMPP ECM do not hook up together. Are there any potential issues if the ECM does not know what the fans are doing? And then do you just abandon the GMPP fan wire?

I have used it a couple of times. Works great.

Don

I just left the GMPP fan wire unused. No issues. ECM only cares about coolant temperature.

Don

Thanks for all of your insight Don.

Looking at the DCC controller and reading the instructions, it appears to me the fan will continue to run after the car is shut off. First, am I correct? Secondly, is there a right way to get around it?

In advance, thanks for your consideration.
Tim

It only runs for a few seconds until the coolant in the radiator falls below the set temperature. Not a big deal in my experience.

Don

I saw the 3 different sized DCC controllers. Which one would be needed with an Entrophy dual fan radiator? There's an FK45, 75 and 95.
Thanks

I just use the 95 since I’m guessing the extra margin can’t hurt.

Don

C7 Corvette fan
 

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

Derp. That's a pretty easy way to do it. 12v from trinary = fan runs at XX%

Well done.

And yeah, just did a C7 fan with a Terminator in a 55 Pickup and its awesome.

Donny,

Give me a call when you get a chance. I think you have my number. If not, check your PM.

Andrew