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Author
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Topic: radiator questions
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mainer
Gearhead Posts: 151
From: Bryant Pond, Maine
Registered: Sep 2003
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posted 04-01-2004 03:02 PM
   
Read through the history on both the racing and classic forums and have a few questions on radiators. The stock one that came out my car is pretty corroded. Don't quite get push vrs. pull fans and which is better.Do pull fan mounts between engine/radiator?
Do you need a shroud for an electric fan?
Is an aluminum 2 core adequate for 420 stroker street/strip driven?
How much space is available between aluminum radiator and 351w in 67-68 coupe, or is it an issue when determining how much fan will fit? Thanks,
Don ------------------
68 Mustang Coupe
New engine on the dyno [This message has been edited by mainer (edited 04-01-2004).]
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V8 Thumper
Gearhead Posts: 4413
From: Phoenix, Arizona
Registered: Dec 2001
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posted 04-01-2004 08:40 PM
Yes, pullers mount between the motor and radiator. A puller is more effecient because (if shrouded) it'll draw air through the entire surface area of the core rather than just through a 'circle' of coverage. Surface area is the main factor of efficency, multiple row cores will increase volume (capacity). A mean 420 inch motor will need lots of radiator and lots of airflow! My little stroker has just about maxed out a double row custom aluminum Tony Smith piece, and that's with a shrouded Spal puller fan. If I were to build more power (read: more heat) I'd need more cooling system to keep it alive. Either that, or only drive the car when it's below 80* ambient temp. What's the fun of that? I love goin' crusin' on sunny SoCal days  ------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9" All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html
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mainer
Gearhead Posts: 151
From: Bryant Pond, Maine
Registered: Sep 2003
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posted 04-01-2004 09:42 PM
Thanks for the reply. Did you have the smith built to the same dimensions as the stock radiator? Would you have gone bigger if you had to do it again? Thanks,
don
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