electric radiator fan conversion completed

[RJRuiz]

Still running the dual Spals; had one minor issue; engine started to heat up quickly on the xway; stopped and restarted problem went away.

Otherwise has worked well. Have the fans on a dedicated relay with the controller tucked away behind the driver side headlights.

Looking for pics, otherwise will take some tomorrow.

R

 

[Bmachine]

Thank you RJ.

A few more questions:

- Are you using the stock e9 radiator?

- Any specific reason you decided to go with two 11' rather than one 16"?

- Did you build a shroud?

- Where are you hooking up the temperature sensor?

Thank you.

 

[RJRuiz]

Stock radiator; Used 2 fans because I was able to get a package deal with the controller- plus overall fan volume was higher in essentially the same space.

Had a very simple flat shroud built; forcing air to go through the fans, with additional rubber covered flaps that open up at speed- saw a similars setup on a Jag XJ-S V-12.

Biggest difference is the noise level. The stock fans were screaming loud.

IIRC, Sensor branched off stock thermostat plug.

I still have room for a larger radiator and if I keep the car, may do that.

R

 

[Bmachine]

Thanks very much, RJ.

So what kind of temp sensor are you using to trigger the fans?

 

[RJRuiz]

Sensor came with fan kit; don't recall exactly.

[Edit] thinking back, I bought the appropriate sensor along with the kit directly from Spal's website; check under accessories.

https://webstore.spalusa.com/en-us/...ans/fan-accessories/fans-fan+accessories.aspx

http://www.speedwaymotors.com/Garage-Sale-Spal-Pulse-Width-Modulated-Fan-Controller,35700.html

Don't see that kit listed anbymore, but it was over five years ago now.

R

 

[Bmachine]

Thank you very much RJ.

 

[RJRuiz]

Dual Fan Install Photo

Bo:

Take a look at the attached pic- the installation was tight, but i was able to squeeze both fans in by staggering them; I had the shroud fabricated as flat as possible so as to maintain easy access to the fans.

Hope this helps,

R

 

[Bmachine]

Thanks very much Ray.

So was this a custom made shroud or did you use the Spal one like this one:

https://webstore.spalusa.com/en-us/...30102052/2va06-ap70-ll-37a-11-p-12v-dual.aspx

Either way, it looks like there was a lot of customization on the install. Nice work! Is the higher fan on the right due to clearance with the AC pump?

Bo

PS: What is that "strip of something" on top of the radiator?

 

[RJRuiz]

Shroud was custom; not enough room for the Spal shroud, and yes the placement was to clear the compressor.

"strip" is a length of rubber weatherstripping to get a better seal over the top of the radiator/shroud.

R

 

[bluecoupe30!]

electric fan

I run only an electric fan in my '72CS as well. No mechanical. Comes on when needed, about when temp guage hits 3 o'clock. Efficient, dependable. Just installed new water pump and will be curious if there is any change to efficiency.
Mike