Thread: Fan to rad.

Tweet

Ok how close should i have my fan to the rad. Right now i am 4.5 inch away.
I will buy a fan shrod should it be 1 or 2 inchs away?
thanks Dave

My roadster is about 1 inch off the radiator ... and I use a 18 inch 7 blade fan ... and a Walker shroud ...

Not to rob this thread, but Deuce, can you tell me the setup you are running there? Looks like a Zips pump riser... does it run cool enough when it sits and idles for long periods of time? Does that shroud just screw to the little 1/4" flange on the back edge of the radiator? My deuce currently has an engine driven flex fan without any riser, and is only about 15" wide with no shroud. I don't want to tear the whole fromt of the car apart to change stuff, but i THINK i can take off the current fan and coax an electric fan in there without taking much apart but the upper hose and the flex fan itself... another thought was to buy a walker shroud like that and cut it to fit the engine fan where it is now (low)... I didn't think this was good, but a rodder friend of mine said he had a model A he did this to and it made a world of difference, even though most of the top portion of the rad was covered by the shroud... He said it forced the air down and through the shroud.... i also think i could likely "coax" one of these shrouds into place without taking the grille shell/rad/hood/headlight bar/etc. off the car, but not sure. Right now it seems to run fine when its moving, even at 25-35mph, but if it sits at idle for awhile the temp will start climbing.

I run the ZIPs on 32's ... and have for over 20 years. We have a ALL DEUCE club here in South Carolina and almost every 32 with a SBC in the club has a ZIP. Go to my project journal listed below and there are photos of the ZIP set up ... that I am installing on the 32 3W I am building.



... Mine runs real cool ... right on the thermostat ...
In traffic ... sitting still ... whatever ...

Deuce will verify, which I see he did while I typed this the first time. A similar unit would be a Snow White pump; http://www.snowwhiteltd.com/products.htm
Deuce, do you have a web site link for where to get the Zip's?

I don't know about the Zip's, but the Snow White places the fan mounting flange an inch closer to the engine which would give some "wiggle" room, not so much importance on a Deuce, but on later models where the rad slants back it helps.

this is one place to get them.

parr automotive

Those things are pretty pricey aren't they? Til its all said and done I'd guess you'd have 300+ in one, right? Anyone else running an engine driven fan on a deuce without a pump riser? I'm thinking I'm either trying a shroud or going with an electric... however, correct me if I'm wrong, but a shroud really isn't gonna make much difference in how hot a car runs at idle is it?

Originally Posted by 30coupe

this is one place to get them.
parr automotive

Thanks.

A shroud will make all the difference in the world at idle. Remember, when you're going down the road you're getting ram effect for air movement through the entire core. At a stop a shroud directs all of the fans effort through the entire core. No shroud, fan only does a small portion of the core, if anything (depending on installation).

[QUOTE=Deuce

My roadster is about 1 inch off the radiator ... and I use a 18 inch 7 blade fan ... and a Walker shroud ...[/QUOTE]

hey deuce, like your ramshorn finish, what did you do to get them to look that way (yep, another thing on my "to do" list")

Originally Posted by HiboyGal

hey deuce, like your ramshorn finish, what did you do to get them to look that way (yep, another thing on my "to do" list")

I ground them fairly smooth and then had them Jet-Hot coated ... they have been on the car for 20 thousand miles and look almost as good as the day I took them out of the box from Jet-Hot ... I did the 3W coupe set the same way ... just got them back last week ... and they look even better than the ones on the roadster ... But ... I took a good bit more time grinding on them it and the extra effort shows ...

After reading this thread and being somwhat confused, I broke down and went the oppisite direction. I have a Be-Cool rad. and just ordered their A/C condenser, mounting frame and their elec. fan for my '32. Most of the rods I see around here with A/C are using elec. fans so I decided to go that way. I already had my brackets, pulleys and new alum. water pump etc.
I hope to get to work some on the the hot rod this weekend.
Jim

IMO electric is the way to go. Looks cleaner and much easier to get the fan close and cool well

I've never been a fan of electric fans, but if any of you guys are going to use one, you should look at these links.......

http://www.streetmachinesoftablerock...topic.php?t=82

Denny - no I don't mind a bit

Yah but i dont like the look !!!