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Radiator support frame?

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Old Apr 2, 2008 | 05:09 AM
  #1  
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Default Radiator support frame?

mine one is flaking with rust at the bottom of frame, also I was thihking of updating to better radiator, good enough to cool 700bhp+, supercharged engine, is there a radiator which will fit in the 1978 c3 rad support frame to handle that sort of power/heat??, if not no point in buying new support frame?

anyone help?

cheers

dave
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Old Apr 2, 2008 | 07:45 AM
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Yes!

For auto:
http://www.dewitts.com/pages/product...asp?ProdID=282

For manual:
http://www.dewitts.com/pages/product...asp?ProdID=279

I have that same manual version in my care and I love it. The workmanship is amazing, and it truly is one of the best mods I have ever done to this car.
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Old Apr 2, 2008 | 09:01 AM
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Sure there are.....your radiator is the same size as a mid 70's BB unit. with proper setup it'll cool. As DB noted..the DeWitts are quality unit.
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Old Apr 2, 2008 | 11:47 AM
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Originally Posted by Durango_boy
Yes!

For auto:
http://www.dewitts.com/pages/product...asp?ProdID=282

For manual:
http://www.dewitts.com/pages/product...asp?ProdID=279

I have that same manual version in my care and I love it. The workmanship is amazing, and it truly is one of the best mods I have ever done to this car.
is the wireing bit easy to install??

and a dual core rad will cool the engine, once its supercharged??

cheers

dave
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Old Apr 2, 2008 | 12:02 PM
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Originally Posted by agent kronus
is the wireing bit easy to install??

and a dual core rad will cool the engine, once its supercharged??

cheers

dave

Wiring? What wiring?

Also, I think it's a 4 core radiator...dual core is just a term maybe.
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Old Apr 2, 2008 | 02:10 PM
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thanks for info, wiring - I was thinking about the dual fan thing! lol

dave
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Old Apr 2, 2008 | 09:54 PM
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Is it your radiator that is flaking or your support that is flaking?I am sorry for not understanding which is rusting.Any of the good name suppliers will be able to accomodate you with your needs.De Witts,Be Cool or Griffin,etc:you will not be disappointed.I have a Griffin that I bought at a Muscle Car meet in Memphis,I got a very good deal on it at the time and could not pass it up since I was not looking for one for my Corvette,my original radiator is good! .I had my El Camino in the show and was looking for a radiator for it and went home with one for my Vette,go figure.If your support is rusted you should replace it. Later Geno
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Old Apr 3, 2008 | 12:26 PM
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Originally Posted by 69elky
Is it your radiator that is flaking or your support that is flaking?I am sorry for not understanding which is rusting.Any of the good name suppliers will be able to accomodate you with your needs.De Witts,Be Cool or Griffin,etc:you will not be disappointed.I have a Griffin that I bought at a Muscle Car meet in Memphis,I got a very good deal on it at the time and could not pass it up since I was not looking for one for my Corvette,my original radiator is good! .I had my El Camino in the show and was looking for a radiator for it and went home with one for my Vette,go figure.If your support is rusted you should replace it. Later Geno
its the support frame thats rusting, but I need to upgrade radiator for my new engine, I think I might go with de witts one, it has a 2 1/4 inch core,the be cool only has a 1 inch core!, is that right??

cheers

dave
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Old Apr 3, 2008 | 06:32 PM
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Originally Posted by agent kronus
I think I might go with de witts one, it has a 2 1/4 inch core,the be cool only has a 1 inch core!, is that right?? cheers dave
I hope you do choose us. Actually the industry standard is two rows of 1" wide tubes. There is about 1/4" gap in between the tubes, so the total core thinkness is 2.25". That's the same for everyone, including DeWitts, Becool, etc. Griffin does offer wider tubes but we've found no advantage to that, and they do not fit the standard rubber cushions. Griffin also uses epoxy to seal the tube/header joints. In the end, I think ours are the best because it's the only thing we do and we make sure they are a true Direct Fit.
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Old Apr 3, 2008 | 06:40 PM
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Originally Posted by Tom DeWitt
In the end, I think ours are the best because it's the only thing we do and we make sure they are a true Direct Fit.

I back this up 100% and I hope you end up getting a DeWitts radiator for your project.
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Old Apr 3, 2008 | 07:26 PM
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Dave,Thanks for clearification,Tom has a very good product,probably the best on the market and you will not be sorry with his product,only reason I have the Griffin was price,availability and price at the time,300.00,brand new out the door at the mucsle car show!I did not have any problems installing it in my 79 fell into place.But I would replace your support if it is rusted badly.I had to replace mine a while back due to rusted out shelf and it is an integrial support for the car.Cheers to you mate,Later Geno P.S. I have met Tom at another show awile back and he is a stand up guy
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Old Apr 3, 2008 | 07:54 PM
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Originally Posted by Tom DeWitt
I hope you do choose us. Actually the industry standard is two rows of 1" wide tubes. There is about 1/4" gap in between the tubes, so the total core thinkness is 2.25". That's the same for everyone, including DeWitts, Becool, etc. Griffin does offer wider tubes but we've found no advantage to that, and they do not fit the standard rubber cushions. Griffin also uses epoxy to seal the tube/header joints. In the end, I think ours are the best because it's the only thing we do and we make sure they are a true Direct Fit.
Have your radiators got enough cooling for a super charged 383, upto about 700bhp+??

cheers

dave
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Old Apr 3, 2008 | 08:02 PM
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Originally Posted by agent kronus
Have your radiators got enough cooling for a super charged 383, upto about 700bhp+??

cheers

dave

Just because an engine makes 700 HP doesn't mean it'll get twice as hot as a 350 HP engine. If all of the components of your cooling system are in place and properly adjusted the DeWitts would have no problems cooling that engine.

Keep in mind, proper radiator core sealing under the hood is essential. Same with a properly functioning fan clutch, as well as a chin spoiler and proper timing and fuel mixture.
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Old Apr 4, 2008 | 04:23 AM
  #14  
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Originally Posted by Durango_boy
Just because an engine makes 700 HP doesn't mean it'll get twice as hot as a 350 HP engine. If all of the components of your cooling system are in place and properly adjusted the DeWitts would have no problems cooling that engine.

Keep in mind, proper radiator core sealing under the hood is essential. Same with a properly functioning fan clutch, as well as a chin spoiler and proper timing and fuel mixture.
yep, but a blower engine will get hotter quicker, so it needs to be cooled quicker??
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Old Apr 4, 2008 | 04:24 AM
  #15  
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how much cfm can the dual fans pull on the dewitts rad??

cheers

dave
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Old Apr 4, 2008 | 07:55 AM
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Originally Posted by agent kronus
yep, but a blower engine will get hotter quicker, so it needs to be cooled quicker??

That would be up to the T-stat. If your engine gets to 160 in five minutes, that's fine so long as the T-stat opens as it's supposed to to start flowing coolant through the radiator. Once that happens it'll cool like normal.


Originally Posted by agent kronus
how much cfm can the dual fans pull on the dewitts rad??

cheers

dave

That depends on the fans. Dual Spals seem to flow around 4000 cfm if I recall correctly...Tom will know better.
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Old Apr 4, 2008 | 09:03 PM
  #17  
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Originally Posted by agent kronus
how much cfm can the dual fans pull on the dewitts rad?? cheers dave
Actually DB it's 2760 cfm. The 4000 cfm was the bogus numbers reported on the Mark8 fans, but when we tested them, they were also about 2700.
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Old Apr 5, 2008 | 08:42 AM
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Originally Posted by Tom DeWitt
Actually DB it's 2760 cfm. The 4000 cfm was the bogus numbers reported on the Mark8 fans, but when we tested them, they were also about 2700.

Hmm...okay, I stand corrected.

I want to get my Focus fans tested. The word on the Focus forums is that each Focus fan tests out at about or just under 2000 CFM each, but that's a hard pill to swallow.
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