New Project - Pusher Fans

[patrickt]

Fred, I can't help you on the mounting problem, but my very old thread on wiring them up, and why I did it the way I did, might be useful: Cool Modification - For Pusher Fans Only, Though

[FredG]

Patrick.

I read your old thread a few times a while ago and being a retired advanced electronics teacher I might be one of the few who understands it. You did a good job with the circuitry and finding the appropriate parts. In my case, the pushers will be more cosmetic because I don't need them for cooling. They will work but independent of the puller and only when I turn them on. Thanks for the suggestion though. On a lighter note, I am expecting good things to come from the bathroom stall brackets.

Fred

[FredG]

I will be wrapping this up by the weekend as the mounting brackets arrive tomorrow and I am sure they will require a little tweeking. The fans are mostly cosmetic because my Roush 427r never runs hot and the puller effectively keeps it cool. The fans will work separate from the puller and be controlled with a toggle. I took the 12v power source directly from the back of power shut off ran it through a 30 amp Auto reset breaker. From there it goes to a normally off relay that will be turned on when the key is on. Power from the relay goes to the SPST toggle that has a mini LED connected in parallel to act as an on indicator. In other words. Start the car. Throw the toggle. the fans and light come on. Simple as that. Here are pictures of the parts. Every connection is either soldered or crimped and sealed with shrink wrap. Here are the pics of the parts. If anyone needs links, I will provide them to you.

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

[FredG]

It appears the the bathroom partition brackets are going to work out quite nicely for mounting the fans.

[FredG]

Pusher fan project is completed and works great. Fans are more powerful than expected and work independently from puller with a dash mounted toggle. Parts used in project are listed in above posts.

[spdbrake]

Great job Fred! Do you have the PN of the bathroom partition bracket? I know it most likely a standard spec but just to make sure I don't order a one-off.

[FredG]

The fan support is 3/4 x 3/4. I ordered two different size brackets from two different companies. One is 3/4 wide and the other is 1 inch wide. I went with the bigger one and used some stainless steel washers to take up the space. I found this easier because it's difficult to get the brackets perfectly parallel. Also, the 1 inch bracket is longer and beefier. The bottom one is one I went with.

https://www.allpartitions.com/urtwoearheav.html




https://www.robertbrooke.com/chrome-...2-x-3-1-2.html I used this one. Picture on bottom

[NoVA Cobra]

Originally Posted by FredG

Pusher fan project is completed and works great. Fans are more powerful than expected and work independently from puller with a dash mounted toggle. Parts used in project are listed in above posts.

Thanks, Fred. Looks nice. I see how the brackets mount to the bar, but I'm curious how the brackets are mounted to the car. I just have a lot of fiberglass inside the cowl and around the radiator. How did you attach the brackets to the car? Are you drilling holes and mounting to fiberglass directly?

[FredG]

Yes. I drilled through the fiberglass and mounted with stainless bolts and stainless nylon locking nuts. There are quick connect electrical fittings also. It's easy to take the whole thing out.

Originally Posted by NoVA Cobra

Thanks, Fred. Looks nice. I see how the brackets mount to the bar, but I'm curious how the brackets are mounted to the car. I just have a lot of fiberglass inside the cowl and around the radiator. How did you attach the brackets to the car? Are you drilling holes and mounting to fiberglass directly?