Re: Still running hot in traffic with the new aluminum rad
[Re: AHall]
#231883
02/22/09 04:26 AM
02/22/09 04:26 AM
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Joined: Mar 2007
Posts: 3,298 West Coast, USA
jbc426
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Posts: 3,298
West Coast, USA
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Did it run hot like this in traffic before you swapped the radiator? Did you ever put the correct radiator cap on it? Verify that the electric fan you have is spinning the correct way when on.
A lot of cheap fans spin well when there is no "load" on them, but fail misirably when they have to pull air through any type of restictive set-up. You do have what looks like a well-made, tightly sealed shroud. Either switch to a good factory type electric fan (there's a guy on this site that sells a nice big GM fan with shroud), or get yourself a high flow 16" Spahl fan or the dual 12 inch Spahl fan/shroud set-up with the good Spahl controller. (It will suck the chrome of a trailer hitch.); OR fit the factory stock/style thermal fan and shroud back on it. They move massive amounts of air too.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Still running hot in traffic with the new aluminum rad
[Re: AHall]
#231884
02/22/09 07:47 AM
02/22/09 07:47 AM
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Joined: Jan 2003
Posts: 3,575 The Netherlands
BigBlockMopar
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Posts: 3,575
The Netherlands
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Quote:
Quote:
So you don't have a gauge on it to know what the ACTUAL temp is?
No, interior is 100% stock/factory. Never got an actual temp gauge, I guess that is where I should start. I wanted to keep it as factory appearing as possible but I figure its time to get a new aftermarket gauge.
Since you don't care for originality under the hood why not just mount a watertemp guage there, which you can check once in a while when your dashgauge shows Hot again?
Or, just keep pouring money into fixing a possible cooling-problem which might not even exist perhaps.
Where's your ignition timing set at idle?
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Re: Still running hot in traffic with the new aluminum rad
[Re: stumpy]
#231886
02/22/09 08:55 AM
02/22/09 08:55 AM
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Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
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Posts: 9,436
Blair County,PA
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You need at least a 180* stat. The stat doesn't do anything but bring the engine up to it's rated temp. Once it's open it doesn't effect the temp. I would go back to a factory fan, shroud and stock water pump set up that has worked for a lot of 440 set ups for a long time.
This makes more sense than anything,they worked when new.Nothing had more coolers and accessories than police packages and half of those idled more than they ran on the highway.We seem to have a passion in this country to keep trying to fix things that work.It's everywhere,just look around.Also,find a 6 blade a/c factory pump,you don't need an aftermarket.
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Re: Still running hot in traffic with the new aluminum rad
[Re: RapidRobert]
#231889
02/22/09 10:23 AM
02/22/09 10:23 AM
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Joined: Apr 2008
Posts: 423 DFW Texas
AHall
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mopar
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You know it'd sure be easier if a good aftermarket W/P took care of this as the W/P would be a much easier install. Also I'd get a high flow 180 stat( drill a 1/16" hole in it for easy fillup). 160 is way too cool ex for a drag racer(& you are way above 160 degrees). The A/C condenser & trans cooler have to stay. I do not have the last word on fan advice but the old standby of a properly spaced(into the shroud) thermal clutch fan would be what I would do. there's just not enough air going thru the rad fins. EDIT yes that is the correct pump though I would check milodon & see if their pump is cheaper.
What is W/P?
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Re: Still running hot in traffic with the new aluminum rad
[Re: 69L78Nova]
#231890
02/22/09 10:25 AM
02/22/09 10:25 AM
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Joined: Apr 2008
Posts: 423 DFW Texas
AHall
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mopar
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Put a thermal clutch fan on it with a shroud. Half the time, electric fans are garbage on the street. The extremely minimal power loss required to run a clutch fan is far easier to live with than overheating the engine. Run a viscous fan with a shroud.
What is a thermal clutch fan?
What is the best # of blades to run for a setup like this?
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Re: Still running hot in traffic with the new aluminum rad
[Re: jbc426]
#231891
02/22/09 10:29 AM
02/22/09 10:29 AM
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Joined: Apr 2008
Posts: 423 DFW Texas
AHall
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Quote:
Did it run hot like this in traffic before you swapped the radiator? Did you ever put the correct radiator cap on it? Verify that the electric fan you have is spinning the correct way when on.
A lot of cheap fans spin well when there is no "load" on them, but fail misirably when they have to pull air through any type of restictive set-up. You do have what looks like a well-made, tightly sealed shroud. Either switch to a good factory type electric fan (there's a guy on this site that sells a nice big GM fan with shroud), or get yourself a high flow 16" Spahl fan or the dual 12 inch Spahl fan/shroud set-up with the good Spahl controller. (It will suck the chrome of a trailer hitch.); OR fit the factory stock/style thermal fan and shroud back on it. They move massive amounts of air too.
Car did what it's doing now, ran fine driving, if i stop in traffic, creeped up.
I havent gotten the correct radiator cap yet as AFCO is closed this weekend.
Im wondering if there is some way I can put a PUSHER fan on the front and put the stock setup on the backside like it was.
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Re: Still running hot in traffic with the new aluminum rad
[Re: cogen80]
#231893
02/22/09 10:34 AM
02/22/09 10:34 AM
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Joined: Apr 2008
Posts: 423 DFW Texas
AHall
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mopar
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you need a real temp gauge in that car somewhere. that way you know exactly what is going on. even if you install one temporarily.
Im going to buy one and install one today.
Question-- do I need a 160 or 180 thermostat?
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Re: Still running hot in traffic with the new aluminum rad
[Re: ToddP]
#231894
02/22/09 10:36 AM
02/22/09 10:36 AM
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Joined: Apr 2008
Posts: 423 DFW Texas
AHall
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What is the ignition timing set at idle?
I dont know. How can I find that out?
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Re: Still running hot in traffic with the new aluminum rad
[Re: ahy]
#231896
02/22/09 10:37 AM
02/22/09 10:37 AM
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Joined: Apr 2008
Posts: 423 DFW Texas
AHall
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Quote:
Radiator: High capacity aluminum Fan: MP 5 blade thermal clutch fan Shroud Water Pump: MP high volume, slightly overdriven (6.25" drive pulley, about 5" fan puley) Thermostat: 180 high flow Mr Gasket
I think that is what im going to try and do. Go back as much to factory setup as possible.
With a fan like that one- can a puller be reversed somehow and installed on the front as a pusher?
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