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Old 09-13-2020   #11
Erik
 
Join Date: Nov 2016
Location: New Brunswick
Posts: 961
Default Re: Best Current Radiator Options?

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Originally Posted by Young1 View Post
Hey Erik. I put a new plastic tank stock style in red. Only the best for blue. Putting on a new set of hoses from Heibeck also. The 30 year old ones were a bear. I cut them all off. They were nearly bonded to the metal.
You raise some good issues. The single core rad is already better then stock. While I can see doing some mods, I can't see getting over 450 hp, which the stock one could already handle. So the dual core is likely overkill.

And yes, I already ordered a new set of hoses from Marc. And his thermostat. Great guy!

As an aside, when I discussed the plastic tanks with Mr Haibeck, he said the failure of the plastic tanks is caused more by mileage then age. The vibrations and constant flexing is what leads to the failure, not the plastic aging. He says he sees it on high mileage cars. Good stuff to know!
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Old 09-13-2020   #12
Young1
 
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Default Re: Best Current Radiator Options?

On red the tank plastic ribs were cracked. On blue the tanks are definitely bulged. A radiator failure on a road trip would be a nightmare.
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Old 09-13-2020   #13
Erik
 
Join Date: Nov 2016
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Default Re: Best Current Radiator Options?

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On red the tank plastic ribs were cracked. On blue the tanks are definitely bulged. A radiator failure on a road trip would be a nightmare.
Yeah, that would indeed be a very bad thing. I think any 30 year old car can benefit from having a fully up to date and 100% functional cooling system. I would have definitely only considered the two row because.... it's better. But I can drop the difference elsewhere!
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"All Corvettes are red. The rest are mistakes." - John Heinricy
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Old 09-14-2020   #14
Erik
 
Join Date: Nov 2016
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Default Re: Best Current Radiator Options?

Looks like DeWitt is MIA for a while. Seems no availability until October/November.
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1990 ZR-1 # 996

"All Corvettes are red. The rest are mistakes." - John Heinricy
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Old 09-14-2020   #15
Erik
 
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Location: New Brunswick
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Default Re: Best Current Radiator Options?

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Originally Posted by Jagdpanzer View Post
Can't go wrong with either Ron Davis or Dewitt.
I'm running a Ron Davis Desert in front of a 427 Stroker. Never had an overheating episode yet.
How bad was the install, Phil? I heard the Ron Davis requires more custom work to fit.
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1990 ZR-1 # 996

"All Corvettes are red. The rest are mistakes." - John Heinricy
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Old 09-14-2020   #16
Dynomite
 
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Location: South Dakota/California
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Default Re: Best Current Radiator Options?

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Originally Posted by Erik View Post
How bad was the install, Phil? I heard the Ron Davis requires more custom work to fit.
d. For the Ron Davis radiator the fan shroud inside baffles have to be cut back 5/8 inch so there is not contact with the fins of the radiator. Use a small cut off grinder for that task.

Post 8 - LT5 Radiator and Initial Coolant Fill Tricks
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Old 09-14-2020   #17
Erik
 
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Default Re: Best Current Radiator Options?

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You, sir, are incredible!
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1990 ZR-1 # 996

"All Corvettes are red. The rest are mistakes." - John Heinricy
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Old 09-14-2020   #18
Erik
 
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Default Re: Best Current Radiator Options?

BTW, has anyone come up with a mod to show off their pretty, hand made, radiators?
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1990 ZR-1 # 996

"All Corvettes are red. The rest are mistakes." - John Heinricy
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Old 09-12-2021   #19
Wigert
 
Join Date: Jan 2018
Location: Sweden
Posts: 73
Default Re: Best Current Radiator Options?

Anyone have the part number of the Dewitts radiator? I need to replace my original.

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Old 09-12-2021   #20
HAWAIIZR-1
 
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Location: Japan
Posts: 3,582
Default Re: Best Current Radiator Options?

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Originally Posted by Wigert View Post
Anyone have the part number of the Dewitts radiator? I need to replace my original.

Sent from my EVR-L29 using ZR-1 Net Registry mobile app

Model: 32-1139090M (Manual)

I don?t recommend the single row.


https://www.dewitts.com/collections/...minum-radiator



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