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  #581  
Old 03-16-2022, 01:52 PM
colorado80439 colorado80439 is offline
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  #582  
Old 03-26-2022, 12:33 PM
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Originally Posted by 68454RS View Post
Andrew, is this not the same as what you did with my Term X and my Spal brushless? Or something completely different and I should delete this.. lol
When using the brushless fan with the built in controller, you can go directly from the Holley to the fan signal wire.

Andrew
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  #583  
Old 11-20-2022, 07:18 PM
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Can someone confirm the part number for suitable fans to use with Holley EFI

What are the suitable fan options? C7 Corvette and any thing else.

This is for my 71 Blazer, but may also update on my 72 C10

thanks
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71 K5 Blazer 350sbc T350
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  #584  
Old 11-20-2022, 09:40 PM
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Can someone confirm the part number for suitable fans to use with Holley EFI

What are the suitable fan options? C7 Corvette and any thing else.

This is for my 71 Blazer, but may also update on my 72 C10

thanks
There are many brushless fans that will work with the Holley EFI. It would be helpful to know the size of the core of the radiator you are using. On my 70 GTO I am using the dual Chevy Volt fans that fit the 26x18X core very nicely.

Andrew
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  #585  
Old 11-21-2022, 12:47 AM
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Originally Posted by andrewb70 View Post
There are many brushless fans that will work with the Holley EFI. It would be helpful to know the size of the core of the radiator you are using. On my 70 GTO I am using the dual Chevy Volt fans that fit the 26x18X core very nicely.

Andrew
The core size is 16-1/8" H x 28-3/8" W. I have a preference to run a single fan

Will be using a Holley Terminator Stealth
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  #586  
Old 11-21-2022, 11:52 AM
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The core size is 16-1/8" H x 28-3/8" W. I have a preference to run a single fan

Will be using a Holley Terminator Stealth
The C7 fan should fit your core nicely and will work very well.

Andrew
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  #587  
Old 11-21-2022, 10:05 PM
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The C7 fan should fit your core nicely and will work very well.

Andrew
Is this the one I should order, Part No 84486698?

https://sdparts.com/i-24135048-genui...iator-fan.html

thanks
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  #588  
Old 11-21-2022, 10:57 PM
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Originally Posted by 68LS1 View Post
Is this the one I should order, Part No 84486698?

https://sdparts.com/i-24135048-genui...iator-fan.html

thanks
That is the one...

Andrew
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  #589  
Old 07-05-2023, 07:42 PM
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For any of you with an E67 from an 09' vehicle, here is what changes I made to finally get the C7 PWM fan to work.

1. I changed the OS from 09' CTS-V to an 09' ZR1

I did confirm through a document on the EFI Live forum that the 2 OS's are compatible.

*no matter what i did with the CTS-V calibration, I could not get a output signal from X3-49*

2. I changed fan settings to PWM Electric 100hz

*PWM EV 100hz did not work per the C7 calibration*

3. Fan State vs. Desired (all zeroes)

4. Output State vs. Control (all 1's)

5. Wired in AC pressure sensor @ X3-21, X3-57, & X3-37

Viola! PWM fan control works in the scanner!

Last edited by flyingv; 07-06-2023 at 10:58 PM.
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  #590  
Old 07-05-2023, 10:19 PM
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Originally Posted by flyingv View Post
For any of you with an E67 from an 09' vehicle, here is what changes I made to finally get the C7 PWM fan to work.

1. I changed the OS from 09' CTS-V to an 09' ZR1

I did confirm through a document on the EFI Live forum that the 2 OS's are compatible.

*no matter what i did with the CTS-V calibration, I could not get a output signal from X3-49*

2. I changed fan settings to PWM Electric 128hz

*PWM EV 100hz did not work per the C7 calibration*

3. Fan State vs. Desired (all zeroes)

4. Output State vs. Control (all 1's)

5. Wired in AC pressure sensor @ X3-21, X3-57, & X3-37

Viola! PWM fan control works in the scanner!
Good information. Nicely done.

Andrew
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