Pusher fans

[601HP]

I had the original twin pushers for 17 years. I also installed a Spal puller fan about 12 years ago. The puller is switched by a sending unit mounted in the intake, and I can operate it manually. The pushers were operated manually.

The puller does the job. After I installed it I rarely used the pushers.

One month ago I removed the bracket and pushers because they actually deflect a lot of air unless they are on. Since removing them I've seen a little quicker cool down while driving at low speeds of 30-45 mph.

I do like the look of the pushers, but I probably won't put them back on.

David

[mickmate]

The radiator frame is a 16" high inside opening at the ends. The fan cross bar is 8" high at the top of the tube. The brackets are on top of the bar for the fans which puts them a smidgeon higher than halfway up the opening. The blue one is 3015 (the twin blower Supersnake) and it's the only surviving one of two so it's kind of a custom on the originals. Old Falcons probably have the same blower fan motors as the Mustangs over there in Oz?

[Jamo]

They are, in the final analysis, a zero net proposition. They replace the airflow that they block. They don't hurt a damn thing...nor do they help.

They do a great job of cutting up birds and bugs that venture near them.

I'm sure my gas mileage suffers a bit...that has kept me awake nights...but somehow I have survived.

I like 'em as much as I do the quick lifts, turkey pan, firewall puke tank, the little panel cutout behind the seats for the FIA suitcase, the backwards running speedometer.........

Boxhead...you've got the right frame of mind for them.

[boxhead]

Cheers Jamo, great minds think alike.


Well I made a start on fitting the fans today, but first I had to finish fitting some new AVO's I bought from another Forum member recently.
I had to get some spacers machined up as my old Spax shocks had rubber bushes and new shocks had spherical joints.
Rear in place.


Front in place,

I also fitted some front slotted rotors from the LAB. And will need to readjust ride heights back to previous settings.

Moved onto the fans next, and after thinking about it for the past few days I decided I did not want to mount them using the 2 steel bars supplied, but instead wanted the single bar up high.

So after working out in my head how I would mount the fan bar to the chassis, I started making some brackets to mount the fan motors to, that I could then weld these to the single bar.
I will use the triangle shapped flat pad as my mount for fan bracket bar.


And here are the mounts I made for fan motors.

The one on the right shows how they mount.

Next I made the bar assy and fitted fan assys.




After a trial fit, all was well so I made some more measurements and welded some uprights on for mounting to the chassis, stripped it all apart and painted before closing up the shed.

[Mando]

Good work Boxhead, I reckon 1 bar looks heaps better than 2. Make sure you post some pic's of the fans in position.

Regards.

[Jamo]

Damn nice work...simple and clean.

By the way, with regard to your sig line...please remember that the ark landed on Mt. Ararat, which is in Armenia.

We invented everything...Greeks and Turks steal.

...just sayin.

[Mando]

I may be missing something but if the motors only turn in one direction why not simply turn the fan around?

Regards.

[Gav]

Looking good Dave, very nice.

I think Andy may be off the hook for the 'heaviest cobra' cobra award though

[boxhead]

there is at a guess3 - 4 kg in the brackets and fans.
If I was worried about weight, I could drop alot of kg and still be heavier than you.

[boxhead]

I managed to finish the fit up of the fans this arvo.
As time permits I will pull them off and paint the motors black.
Here you can see how I mounted the frame to the chassis.


And in place.

[Jamo]

Boxhead, my highest praise...mucho muy goodo.

[Merv and Sharon]

Dave, by the look of that radiator, those fans will also be good bug slicers! May also deter local 'roos.

[lovehamr]

Boxhead, I don't know if now is a good time to mention this but there was a reason that I went with 2 cross bars holding the top and bottom of the motors. Mine is the first car in post #5 BTW (BDR687). The guy that I originally bought the motor/fan setup from had only a top bar like yours but it was fairly flimsy feeling. When I mocked them up>1" from the radiator it really seemed that If I were to lean on the car (which I do) that the fans might contact the rad core. I don't know what's original and what's not but that's why I added the second bar. Just thought I'd mention it.

Steve

[Gav]

I wouldn't worry about the second bar Dave, with the way you have built it I would think using it for a tow hitch would be ok too!!

[boxhead]

Hi there Steve, the construction is pretty solid, I grabbed it with both hands and yanked forward and backward, I thought the car was going to fall off the hoist, but the fans did not move.

Cheers Gav, she aint moving alright

[boxhead]

Oh man, a mates son just commented when he saw a picture of my Cobra with fans in place "Daddy, why did that man put Towmaters teeth on his cool car"

[boxhead]

May as well, I too have Maters teeth.

[boxhead]

I got mine from Baz earlier this year.
Same as what Finishline sell.

[boxhead]

New picture on my office wall.

[renovationinnov]

boxhead just got to love it !!!!!!