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Author
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Topic: looking for 65 racy heator core
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stoker
Gearhead Posts: 142
From: folsom,cal,
Registered: Jan 2002
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posted 12-13-2002 11:42 PM
   
seem to have real bad luck with blowin them.maybe its the 6800 rpm car sees often.where can i get high quality one with guarantee?
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V8 Thumper
Gearhead Posts: 3603
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 12-14-2002 08:20 AM
Don't know of any 'high end' cores, but here's a few ideas/questions: What size thermostat are you running? Running deionized water? Install a ground strap from the back of each head to the firewall; the multiple grounds help keep electrolysis in check, as does the DI water  ------------------
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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n2oMike
Gearhead Posts: 1641
From: Spencer, WV
Registered: Jan 2001
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posted 12-14-2002 09:03 AM
I used to pop radiator cores with missed shifts back in the day...  The simplest and most effective thing to do, is to put a restrictor in the hose that goes to to the core. (a cheap way is hose clamping a small 1/4" socket in the hose) Just be sure to restrict the hose going to to core, and not the one routing water away from it. If you restrict the outlet, it will just build more pressure.  The heater inlet hose is the one that runs from the intake manifold, not the water pump. It works like a charm... Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220 [This message has been edited by n2oMike (edited 12-14-2002).]
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V8 Thumper
Gearhead Posts: 3603
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 12-14-2002 11:21 AM
That's a cool idea Mike   Stoker, if you're motor sees 6800 rpm frequently, the restrictor could very possibly take care of the problem. I'm still sold on DI water, and here's an example: Anything over .300v DC in your cooling system will begin to erode the softest metals (electrolysis). Freeze plugs and thin aluminum (heater core  ) are usually the first to go. With a 75/25 mix of DI water and antifreeze, I only see .070 v DC in my cooling system measured with a multimeter; negative pole on the negative post of the battery and the positive pole submerged in the coolant ------------------
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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stoker
Gearhead Posts: 142
From: folsom,cal,
Registered: Jan 2002
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posted 12-14-2002 04:28 PM
so most 1/4 inch sockets have 1/4 inch orifice i am assumming.will that relieve high pressure which i take is causing blown core?it was only a couple months old
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