Re: 471 hemi Upgrade fan or radiator first?
[Re: Blue69Charger]
#734005
06/26/10 05:13 PM
06/26/10 05:13 PM
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Joined: Feb 2005
Posts: 767
Midwest
fuseable
super stock
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super stock
Joined: Feb 2005
Posts: 767
Midwest
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It does put it closer (in my case). I have 3 5\8 but mine is for an early B-body. Yours might be slightly different. They build them for specific body styles. Check out there website, and call them. I had them fab up a shroud without a hole in it that was 1 inch off of the core I then installed it and marked it for water pump center line, cut the hole and fabed up the extension. I would go for it, it solved all of my cooling problems. I tried alot of ideas, big electric fans, big cross flow aluminum radiator, played with timing, vacuume advance settings, large max wedge stock radiator. I even brought an LM-1 to check air fuel ratio, (I am glad I got one as it is a very good tuning tool). I fought it for 3 years, it got to the point where I was only enjoying my Hemi car in the spring and fall. (I live in the midwest). The Griffin Rad solved all of my problems.  
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Re: 471 hemi Upgrade fan or radiator first?
[Re: Blue69Charger]
#734007
06/26/10 06:09 PM
06/26/10 06:09 PM
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Joined: Jan 2007
Posts: 10,136
A Red State
SNK-EYZ
I Live Here
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I Live Here
Joined: Jan 2007
Posts: 10,136
A Red State
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I just picked up a new 4 core 22 inch brass and copper radiator for Jarrods Duster from http://portellradiator.com. Total cost with tax was $385 with tax. Jarrod wanted to keep the stock look is why he went that way. The 26" four cores are the same price of $365 plus tax ($385 total). While I was there I talked to the owner (Geary Portell) about building a new radiator for my 67 Satellite for the 572 Hemi that's going in it. What he recommended was a 26 inch radiator in aluminum rather than a brass and copper one. That kinda kills my planned stock look.  A custom made 26" crossflow was $345 and adding a custom made fan shroud with 2-12" electric fans was another $250 for a total of $595. A custom made 26" downflow was $445 and adding the custom made fan shroud with the 2- 12" electric fans was another $250 (again) for a total of $695. Both types of fans were designed for a stick, no internal trans cooler. One could be added for another $50, but he recommended simply using a separate trans cooler to keep the engine running cooler.
Kayse can't keep up at all now. lol
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Re: 471 hemi Upgrade fan or radiator first?
[Re: Jack Zupan]
#734009
06/26/10 06:20 PM
06/26/10 06:20 PM
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Joined: Jan 2007
Posts: 10,136
A Red State
SNK-EYZ
I Live Here
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I Live Here
Joined: Jan 2007
Posts: 10,136
A Red State
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Sorry for the slight hijack. Quote:
I have a '69 Roadrunner in which I put a big inch hemi with about 600 hp in place of the 383. I had a 22" radiator and didn't want to change the opening or drill holes in the front. I went with a 22" brass triple flow radiator from US radiator along with the smaller 383 fan and a high flow water pump. The car runs cool all of the time and does not seem to get hot even in hot weather. I have about 300 miles on the system now and I am very happy with it. The only thing is that the radiators are kind of expensive, around $500.
So yours cools fine with the 22" 3 core radiator?
Kayse can't keep up at all now. lol
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Re: 471 hemi Upgrade fan or radiator first?
[Re: Blue69Charger]
#734011
06/26/10 10:14 PM
06/26/10 10:14 PM
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Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
torkrules
I'm neurotic
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I'm neurotic
Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
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Quote:
I have a 471 hemi in a 69 charger. It has no problems with cooling under 80 degrees but when its hotter the temperature starts to creep up at idle. It will cool off quick once it gets to around 40 mph. I haven't hooked up the a/c yet, because I would like to get it to run cool first. I have the mopar performance water pump housing and high flow water pump, and a high flow 180° thermostat. The radiator is a 3 year 26" champion radiator 2-row core with 1" tubes and the lower radiator hose has a spring in it. When I bought the radiator the ad said it was good for 400 hp which is undersized for the current engine. I have a stock '215 fan and a jaguar fan clutch. I have non-ac 440 pulleys from BPE. Timing is set at 8 initial 32 total. It runs and idles great, but probably could use more initial timing. I'm considering buying a griffin GRI-5-866GB-FAX 26" radiator with a 3" core which is rated for 600 hp. But I saw a recent post on a mercedes c-class electric fan that looks like it would fit good. Would a high-amp electric fan help with cooling at idle or am I better off trying a bigger radiator first. Both upgrades cost about the same, because the I would have to buy a new alternator/brackets to get the electric fan to work. Ideally I would like the temperature to stay at 180-190° stuck in traffic on a 100° day with the a/c on.
The A/C might have an effect. What temp does it run at now? My 472 is putting out 658Hp and I have a 22" Mancini aluminum rad with a 18" solid flex-a-lite fan and a 180 stat. Moving mine sits at 175 degrees. It does creep up to 185 in traffic.
In you case, I would think a 26" rad should work fine. I found that I my temp would creep a lot more with a clutch fan. Pretty cheap to try a fixed fan.
Also, not knowing what your set up is or whether or not you use the vacuum advance, but I found my engine responded better at 18 degrees initial, 32 degrees total. The extra timing might help to cool things a bit. Make sure your mixtures are not too lean and that you have all of the seals on the hood as they direct the airflow through the rad instead of over it.
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