DeWitts radiator
Thread Starter
Team Owner
Joined: Oct 2006
Posts: 20,393
Likes: 431
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
NCM Member '09
DeWitts radiator
Ok, I'm going to pull the trigger on a new DeWitts, my plan is to run a 16" SPAL fan as a replacement for
the factory puller as well, wired along with my factory pusher to the switch on the drivers head to kick on
at 174, off at 166...
Looking at the factory height of the radiator, it says 15-5/16"....will a 16" fit with just a tad of lower
overlap? I really wish I could run the dual 11" pullers like I have on my Z-28, but it's just too narrow....
the factory puller as well, wired along with my factory pusher to the switch on the drivers head to kick on
at 174, off at 166...
Looking at the factory height of the radiator, it says 15-5/16"....will a 16" fit with just a tad of lower
overlap? I really wish I could run the dual 11" pullers like I have on my Z-28, but it's just too narrow....
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Ok, I'm going to pull the trigger on a new DeWitts, my plan is to run a 16" SPAL fan as a replacement for
the factory puller as well, wired along with my factory pusher to the switch on the drivers head to kick on
at 174, off at 166...
Looking at the factory height of the radiator, it says 15-5/16"....will a 16" fit with just a tad of lower
overlap? I really wish I could run the dual 11" pullers like I have on my Z-28, but it's just too narrow....
the factory puller as well, wired along with my factory pusher to the switch on the drivers head to kick on
at 174, off at 166...
Looking at the factory height of the radiator, it says 15-5/16"....will a 16" fit with just a tad of lower
overlap? I really wish I could run the dual 11" pullers like I have on my Z-28, but it's just too narrow....
http://www.dewitts.com/pages/product...asp?ProdID=370
Thread Starter
Team Owner
Joined: Oct 2006
Posts: 20,393
Likes: 431
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
NCM Member '09
Is that from a 90 Tom? I looked at that and wondered if it would fit, and just not be original....
Advanced
Joined: May 2006
Posts: 80
Likes: 1
From: Atlanta GA
Good Move on the DeWitt Radiator
I commend you on your move to a DeWitt Radiator. I very rarely endorse a product to others, but this would be an exception.
In year 1 with my 95 LT1 coupe, the car would run hot in stop and go traffic. The tranmission would run hot as well.
In year 2 after my installation of a DeWitts radiator, the cars run 197 - 204 in all conditions and the trans runs 180-185 even in the Atlanta heat.
The only problem I had was the upper shroud during removal and replacement. I just did not think to cut away at the opening for the hoses on the passenger side. That would have made things easier.
I have been most happy with the DeWitt product. Then even picked up the ball when Mid America dropped it. I was treated as a customer should be treated.
Good luck with your project.
In year 1 with my 95 LT1 coupe, the car would run hot in stop and go traffic. The tranmission would run hot as well.
In year 2 after my installation of a DeWitts radiator, the cars run 197 - 204 in all conditions and the trans runs 180-185 even in the Atlanta heat.
The only problem I had was the upper shroud during removal and replacement. I just did not think to cut away at the opening for the hoses on the passenger side. That would have made things easier.
I have been most happy with the DeWitt product. Then even picked up the ball when Mid America dropped it. I was treated as a customer should be treated.
Good luck with your project.
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
My bad...this only fits 90-96 C4's. The OP has an 89 and that won't work, however we are creating an upgrade for Corvette Fever car for early C4's (84-89) and we will make this a standard product.
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Thread Starter
Team Owner
Joined: Oct 2006
Posts: 20,393
Likes: 431
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
NCM Member '09
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Melting Slicks
Joined: Nov 2002
Posts: 2,471
Likes: 2
From: 1993 Quasar Blue 'vert Scottsdale AZ
I'm curious how you came up with the fan on/off settings. In Tucson, even without the AC on, your fan will be running continuously. Good luck passing emissons. I have a Ron Davis radiator (similar to DeWitts), and I had to raise the fan on temp to 195. Even when it's over 110*, I never get over 207*.
Thread Starter
Team Owner
Joined: Oct 2006
Posts: 20,393
Likes: 431
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
NCM Member '09
I'm curious how you came up with the fan on/off settings. In Tucson, even without the AC on, your fan will be running continuously. Good luck passing emissons. I have a Ron Davis radiator (similar to DeWitts), and I had to raise the fan on temp to 195. Even when it's over 110*, I never get over 207*.
