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
Printable View
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
http://img.photobucket.com/albums/v1...r/DSC01917.jpg
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.
http://hotrodders.com/journal_photos...1630201560.jpg
... 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?
Thanks.Quote:
Originally Posted by 30coupe
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).
Thanks Denny, you might check Parr's (30's suggestion), they were $20 less than So-Cal.
It's a shame the brackets are part of it. I like the alt down low to keep the top of the engine cleaner looking, and REAL hot rods don't have A/C!:LOL: :LOL: (Well, except for old fogies who can't take a little heat:D )
Thanks for the info on shrouds... if my fan is low in the rad (without a waterpump riser) and i put in a walker plastic shroud with the hold cut out low for the fan, leaving the upper portion covered by the shroud, will it help or hurt the amount of air pulled through the rad at idle? for 89.00 I would try it if there was any chance it would help.
http://images19.fotki.com/v284/photo.../29_445-vi.jpg
This is a Snow White ... it belongs to a friend ... and it is on his Model A ...
The Snow White does not have the brackets ...
300 dollars is a fair amount of money ... but a LOT less than a cooked engine ... When you factor in the alternator bracket and the improved fan ... I believe them to be a bargain.
A 14 inch fan has the area circle of 153 inches ...
A 18 inch fan has the area circle of 254 inches ...
Thats a LARGE improvement ...
For any given arrangement, the fan is going to pull the amount of air it's gonna pull (don't you just love profundities?). So neither the fan nor shroud cares whether the hole is at the top or the bottom as far as amount of air flow. The fan shape/design will have more to do with that than location (in this type application). One plausible argument for having it in the upper half rather than lower is that the hottest air will have the shortest path of exit. That said, even with the fan down low pulling through a shroud is better than no shroud for the reasons stated in the above entries.Quote:
Originally Posted by joeybsyc
Now, the type of flex fan you've got there isn't known for being very effective. For a mechanical fan I prefer the type Deuce has in the picture above. If for no other reason, rarely if ever do you see an OEM application overheat. Which fan did they use? The funky little flex fan, or the modest pitched steel fan like Deuce's? (which also has some flex, just not as much).
I agree the flex fan isn't the most efficient fan design ever created, its there because they are 15" diameter, and thats all the clearance i have... I did find some stamped steel fans in 15" on flex-a-lite's website, and may look into getting one, along with a shroud. I'd like to try to make this work with a stock type fan setup, as I don't like the look of an electric fan. I'm not particularly crazy about the look of the risers either, although the one without the extra brackets cast all over it looks better than the Zips. In any case, I'd like to try to do whatever I decide to do without tearing the whole front end off of the car, in fact, I'm going to attept to finesse a shroud in there without even taking off the hood. I figure they've been building hotrods alot longer than they've been making electric fans and pump risers, so there's gotta be a way to make it work with a factory type fan setup. I'm hoping whats been said about shrouds is correct, and I can get it to idle a bit longer without the temp raising up too much. Makes sense that it should help. As it is now, the car is fine until it has to sit and idle for long periods of time, at which time it wil creep up until you start moving again, then the temp quickly drops back where it should be. Where I live it will be a very rare occurance that I'll ever be sitting still for long, so if i can improve it even a little bit, it will work for me. -JB
When my 32 had the 345 HP 350 aluminum head crate engine ... I did not have the shroud. My car ran right on the thermostat :) ... never getting above the thermostat ... ... BUT ... when I installed the 430 HP engine ... I had to install the shroud. The additional 80 plus Horsepower and the engine being brand new ... was just enough to make the car want to creep up in temperature when sitting for more than a minute or two. The shroud cured that ... :D
Thanks Deuce... that verifies that the shroud indeed makes a big difference. If you don't mind me asking, how tough was the walker shroud to install/cut? Is there any hole in it at all when you get it, or is it just a domed piece of black plastic? I plan to make a cardboard template to determine where the hole should be, then cut the hole out low to match my fan and attempt to slide the shroud in from the top without disassembling my 3 piece hood and hinge/latch system... I think I'll get an OEM styled fan like yours too while I'm spending money, although it will still be a smaller diameter. My engine is a low horse goodwrench crate with completely stock guts, rad is brand new, so it "shouldn't" be a tough engine to keep cool...
Yes, they come as a cut to fit blank face.
For reference here's a lot of choices in one spot;http://www.speedwaymotors.com/m/370_...r-Shrouds.html
Thanks for the link... this site rules! At 74.99, Speedway sells Walker shrouds 10.00 cheaper than Walker themselves. I think I'm gonna buy the shroud and a 15" aluminum 6 blade fan found on that same page for 29.99. For just a tick over 100.00 I may be able to solve my cooling worries and still run a standard fan setup... if it doesn't work, watch for a new thread asking about how to install an electric fan! lol Thanks for all the help as always. -JB
.....and a thread referencing an ebay auction for "excess" parts?:LOL: :LOL: :LOL:Quote:
Originally Posted by joeybsyc
:3dSMILE: That too!
http://jpeg
not a great pic. but you can see the fan & rad in relation to each other. no shroud & it runs at 190 all day. built 283
sorry can't get the pic to load
http://static.summitracing.com/globa.../flx-1615p.jpg
http://store.summitracing.com/partde...5&autoview=sku
Summit has a real good fan ... for less than 25 dollars ... :D
Have you used those fans Deuce? Speedway has a non flexing aluminum one (vs. steel) for an extra 5.00... any advantage/disadvantage to aluminum vs. steel? Both are painted black, so appearance isnt gonna be a factor.
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:)
I used one on my 1940 Ford coupe with a SBC ... moved a lot of air ... :DQuote:
Originally Posted by joeybsyc
http://img.photobucket.com/albums/v1...1041869852.jpg
I think I'm gonna order one, and a walker shroud... can't hurt, and i think i can install both without tearing the front end apart, which i really don't want to have to do.
30coupe, Sorry, I just couldn't let this pass...:3dSMILE:
Attachment 18966
[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") :LOL:
Quote:
Originally Posted by HiboyGal
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 ... :D ;)
:confused: 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
Yah but i dont like the look !!!
Quote:
Originally Posted by daveyboy1956
I agree ... totally :)
Everyone has a right to use what they want ... that's the cool thing about Hot Rods ... instead of restorations ... but I think they look totally out of place on a traditionally styled car ... if you have a 1-800-car with all new stuff ... built from Street Rodder magazine ... I guess they would be in keeping with the all new theme ...
I will keep the old school way ...
but then again ... my wife says I am stuck in 1957 ... :LOL:
HiboyGal any chance of a picture I would like to see your setup.:D
Well, i just ordered this fan:
http://www.speedwaymotors.com/eccSto...910-1575_L.jpg
and a Walker (size C) molded fan shroud that i hope i can squeeze in without taking my hood sides off... I was going to order the one posted by Deuce from Summit, but figured I'd just order everything from the same place to save on double shipping/handling charges... I think its the same fan anyhow to be honest... hopefully it will help out my heating up at idle problems. By the way, I have 2 bottles of WaterWetter in it now, which I really don't know if they helped anything or not because i didn't have much of a baseline to compare against, but I see Speedway also sells something called 40 Below thats 21.00 for 30 oz. Is this basically the same stuff as waterwetter or something different? Could I put it in with 2 bottles of wetter already in there, will it make any difference at this point or should I keep my 21 bucks?
I don't now if adding another bottle of 40 below will make a lot of differance with your original water wetter,but I do know that I am a firm believer in the 40 Below as it has worked well for me.I will be draining my system this spring and adding another can.
Maybe somebody here can save me a bit of research time. I'm looking for an upper radiator hose application to fit. I'm running the zips water pump riser and a straight up waterneck on an sbc with a Walker radiator. I'd appreciate any help. Lots of good information out there.
Quote:
Originally Posted by SteelVic
http://img.photobucket.com/albums/v1...r/4306c900.jpg
http://img.photobucket.com/albums/v1...r/DSC01917.jpg
I have the number around here somewhere ...
Will have to find the number ... :)
Since this thread has re-surfaced, i figured I would update my own experiences... with the new steel fan pictured in the above post, I have driven 500 miles in the past few weeks and have never seen the gauge go past 180. Granted I have not sat idling for hours on end, but I've driven in all sorts of conditions, in town, stoplights, highways, etc, and have had NO cooling issues... it runs cooler than my 69 Camaro with a big block and giant 4 core radiator/clutch fan, shroud, etc. I should also note I have a full hood, not so much as a single louver on the sides or top, no water pump riser, and no shroud. There's a 180 thermostat in the intake, and the radiator is a new Walker. I'm actually amazed it runs as cool as it does, that little 15" 6 blade steel fan is getting it done.
Deuce will not agree with me....but look at cool flex. You cut to length and you can get them in Chrome, black or any other color that might float your boat.Quote:
Originally Posted by SteelVic
