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12-16-04, 03:39 PM
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#1 (permalink)
| | Bill D I Have No Life 
Join Date: Sep 2001 Location: Camarillo, CA
Posts: 2,411
Rep Power: 35  | Cooling Tube size
Anyone know the size (ID and OD) of the cooling pipes used?
Thanks
Bill | 
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12-16-04, 04:07 PM
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#2 (permalink)
| | Mark Worthington 10 tenths
Join Date: Dec 2001 GT40: Massachusetts
Posts: 1,814
Rep Power: 26 | Re: Cooling Tube size
Bill, the search function is your friend. I know this has been discussed before. As I recall, Adam Christensen did a very thoughtful engineering analysis of cooling pipe size. | |
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12-16-04, 04:36 PM
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#3 (permalink)
| | Bill D I Have No Life
Join Date: Sep 2001 Location: Camarillo, CA
Posts: 2,411
Rep Power: 35 | Re: Cooling Tube size
Mark
I tried the search function twice. Nothing that indicates the size of the tubes.
Bill | |
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12-16-04, 04:59 PM
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#4 (permalink)
| | Mark Worthington 10 tenths
Join Date: Dec 2001 GT40: Massachusetts
Posts: 1,814
Rep Power: 26 | Re: Cooling Tube size
Bill, did you try this thread? Lots of good information in there, including pipe sizes in original GT40s. Seems like 1.5 inch diameter is a popular size. | |
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12-16-04, 06:12 PM
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#5 (permalink)
| | Kalun_D 6 Tenths
Join Date: Dec 2003 Location: Seattle GT40: Scratch build
Posts: 639
Rep Power: 12 | Re: Cooling Tube size
to give you a synopsis of the large thread.
Most of the originals are 1.75" OD feed and return. Alum and SS.
many of the kits are 1.5" OD feed and return
I ended up with 1.5" feed, 1.75" return both .035"wall 304SS.
The new Ford GT44 has 1.25" feed and 2.0" return. | |
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12-16-04, 06:41 PM
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#6 (permalink)
| | Bill D I Have No Life
Join Date: Sep 2001 Location: Camarillo, CA
Posts: 2,411
Rep Power: 35 | Re: Cooling Tube size
Thanks everyone.
BD | |
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12-16-04, 11:05 PM
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#7 (permalink)
| | Phil 3 Tenths
Join Date: Feb 2004 Location: New Jersey GT40: scratch built Mk1
Posts: 368
Rep Power: 8 | Re: Cooling Tube size
Bill
I have seen the 1.5" size work more than adequately, but I did encounter a problem with one setup where the coolant running to the radiator up front went thru a pressure drop and would almost flash to steam at the end of the run, we solved this with a restictor at the outlet of the radiator, I believe it was 1" I.D. Also maybe soften up on the thermostat setting if you have to. It seems that the restrictor didn't affect flow at all and we were able to drop about 15-20 deg. in the operating temp.
Good luck
Phil | |
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