Re: Fan to radiator location what is optimal?
[Re: rth]
#945804
03/09/11 10:12 PM
03/09/11 10:12 PM
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another thing is proper coolant mixture.it should be 50/50.a high concentrate of coolant will cause high temp.i have used flex fans and shrouds since forever and never had a problem with 440's stock or not,auto or 4spd.a good rad and proper fan spacing is all that's needed.
I use more of 75% distilled H20 and 25% antifreeze with a bottle of Redline water wetter as well.
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Re: Fan to radiator location what is optimal?
[Re: rhad]
#945805
03/09/11 10:27 PM
03/09/11 10:27 PM
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Joined: Oct 2010
Posts: 161 Huber Heights Ohio
greenpigs
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What PSI radiator cap are you using? The higher the better according to Mopar Action. 16 is normal but E booger says 20 is fine if everything works well. It raises the boiling point of the coolant if I remember right.
69 Charger RT
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Re: Fan to radiator location what is optimal?
[Re: greenpigs]
#945806
03/09/11 10:48 PM
03/09/11 10:48 PM
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What PSI radiator cap are you using? The higher the better according to Mopar Action. 16 is normal but E booger says 20 is fine if everything works well. It raises the boiling point of the coolant if I remember right.
Got one of those caps with the temp guage built right in it made by Mr. Gasket. I thinks it's a 16 or better.
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Re: Fan to radiator location what is optimal?
[Re: MidPenMopar]
#945809
03/12/11 07:20 PM
03/12/11 07:20 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
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Grade 8 I'm pretty sure. Nope I just looked Grade 5 5/16-18 X .75" long.
Last edited by Challenger 1; 03/12/11 07:23 PM.
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Re: Fan to radiator location what is optimal?
[Re: Challenger 1]
#945812
03/12/11 07:37 PM
03/12/11 07:37 PM
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Grade 8 I'm pretty sure. Nope I just looked Grade 5 5/16-18 X .75" long.
I noticed mine needed 1.25 inch long bolts. The ones that came with it are .3/4 inch though. The P.O. had to put in some spacers to get the pullys to all line up for some reason that i don't understand.
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Re: Fan to radiator location what is optimal?
[Re: MidPenMopar]
#945814
03/13/11 09:46 AM
03/13/11 09:46 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
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dang Stu! sorry to hear about your luck! how close was the fan to the radiator before you drove it?
if you're getting a lot of movement, how are your motor mounts/Trans mount? are they letting your engine move around to much when you put load on it from driving?
**Photobucket sucks**
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Re: Fan to radiator location what is optimal?
[Re: 70Cuda383]
#945815
03/13/11 11:19 AM
03/13/11 11:19 AM
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dang Stu! sorry to hear about your luck! how close was the fan to the radiator before you drove it?
if you're getting a lot of movement, how are your motor mounts/Trans mount? are they letting your engine move around to much when you put load on it from driving?
You know i found i have to have the main fan pully shimmed out about 3/8" to make the other pullys line up and that's exactly how much the fan is hitting the radiator of course. The flex fan i was using did not have that problem though so i never got into why it all is like this?
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Re: Fan to radiator location what is optimal?
[Re: BigBlockMopar]
#945817
03/13/11 02:35 PM
03/13/11 02:35 PM
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Airflow is the problem here, but an (overly) advanced camshaft can cause hot(ter) idling aswell ![](/ubbthreads/images/graemlins/smile.gif) Was the cam degreed properly in your motor?
No idea at all as it was in there when i bought the car over 10 years ago. All i know is it is way too much duration for a mostly stoch engine.
Ok so i got the radiator out and i think i will look for a new one now anyway. ![](/ubbthreads/images/graemlins/1343795-scratchchin.gif)
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Re: Fan to radiator location what is optimal?
[Re: DennisH ]
#945819
03/13/11 04:30 PM
03/13/11 04:30 PM
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Take your time and get it figured out. I got advice and help from jbc426. My 26" was recored to a 4 row and we got enough clearance. The factory thermal fan works great. Fresh coolant and 180 superstat. The extra row could increase how close it is.
Well i have it all apart now and going to try and replace as much stuff as i can while the engine bay is open.
I hope to find a direct fit radiator that has increased cooling as wel as no extra width if that is possible?? ![](/ubbthreads/images/graemlins/1343795-scratchchin.gif)
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