I have it on both Vettes and it keeps cool at all times.
Why DeWitts?
Thread Starter
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Why DeWitts?
As promised, I put together a PDF on process. I hope you find it valueable.
http://http://www.dewitts.com/download/cores.pdf
http://http://www.dewitts.com/download/cores.pdf
Race Director
Joined: Feb 2003
Posts: 16,475
Likes: 270
From: Kingman AZ
Cruise-In VII Veteran
Cruise-In VIII
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
I looked at some of their display models during Bloomington Gold this year. They make a solid, well built product!
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
I couldn't be happier with my Dewitt's radiator and high speed fan...Cools my 383 right down...Fast..I tell everyone how well this combo works...
..Are you going to be at Carlisle this year Tom?.....WW
..Are you going to be at Carlisle this year Tom?.....WW
Team Owner
Joined: Aug 2005
Posts: 34,988
Likes: 515
From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
2018 Corvette of Year Finalist
2017 C4 of Year
2016 C7 of Year Finalist
St. Jude Donor '09 thru '20
Thread Starter
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: Nov 1999
Posts: 32,782
Likes: 11
From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
Cruise-In VI Veteran
Cruise-In VII Veteran
Can't say enough good thing about my DeWitts radiator, 
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
That hurricane thing will turn Rose into a rolling dust ball!
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
.This fan moves way more air then the stock fan. This has a two fold effect, it cools better, plus it moves that hot air out of the engine bay faster making the underhood temps lower. This has to make the electical and plastic components last longer....WW
Last edited by WW7; Aug 25, 2011 at 08:40 AM.
Thread Starter
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Thanks for the comments guys. I realize the C4's are not pulling in the big bucks and they are really in a category all their own. It's tough to pay 5-10% of your vehicle value for a radiator and many just can't do it. We are looking into creating a new (cheaper) single row design that will cool the same as the double row. With fatter tubes and shorter fin we might be able to that. 
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Tom
can you make sense of these numbers?Supposedly this is a 16 in spal not sure what cfm/amp its rated at trying to find out. May need an upgrade.
Have a 1 wire 50 amp alt (rcr mini alt)
AP70/LL A473 M9.7
Cod.20111233
No.W0 00594259
Need a powerful fan with low amp draw
on a 16/24 brass 3 row rad, 580-600chp somewhere in there.
Dont worry there will always be the crowd who will pay the money for a well known product like your radiators. Doesnt the tube soldering have a different process than the cheapies (epoxy?)
can you make sense of these numbers?Supposedly this is a 16 in spal not sure what cfm/amp its rated at trying to find out. May need an upgrade.
Have a 1 wire 50 amp alt (rcr mini alt)
AP70/LL A473 M9.7
Cod.20111233
No.W0 00594259
Need a powerful fan with low amp draw
on a 16/24 brass 3 row rad, 580-600chp somewhere in there.
Dont worry there will always be the crowd who will pay the money for a well known product like your radiators. Doesnt the tube soldering have a different process than the cheapies (epoxy?)
Last edited by cv67; Aug 25, 2011 at 10:30 AM.
Instructor
Joined: Dec 2010
Posts: 138
Likes: 1
Very impressive set up. It sounds like you folks have your quality control issues well in hand. I used to build pressure vessels and know what is involved. A lot more than meets the eye.
From sourcing the correct metals with the correct metallurgy.. to the correct brazing materials, from the correct machines to form the metal, tubes, etc. It all adds up...
The last thing anyone needs to worry about is a bad radiator. Usually a bad radiator leads to much bigger issues down the road.
But in the end, I know if you take care of the quality, it will show. And most of all you will have a superb reputation. Probably all of us really have that matter. I have heard nothing but good from people here about your products.
I have talked to a few mechanics in my area and they have huge issues with some of the parts they get. And it drives them nuts. They try to do the best they can, but the quality of parts today seems to be not what it used to be.
I know if I ever have to replace mine, I will spend the extra couple of dollars, and rest well assured I have the best
From sourcing the correct metals with the correct metallurgy.. to the correct brazing materials, from the correct machines to form the metal, tubes, etc. It all adds up...
The last thing anyone needs to worry about is a bad radiator. Usually a bad radiator leads to much bigger issues down the road.
But in the end, I know if you take care of the quality, it will show. And most of all you will have a superb reputation. Probably all of us really have that matter. I have heard nothing but good from people here about your products.
I have talked to a few mechanics in my area and they have huge issues with some of the parts they get. And it drives them nuts. They try to do the best they can, but the quality of parts today seems to be not what it used to be.
I know if I ever have to replace mine, I will spend the extra couple of dollars, and rest well assured I have the best
Burning Brakes
Joined: May 2010
Posts: 840
Likes: 4
From: High Point NC
Thanks for the comments guys. I realize the C4's are not pulling in the big bucks and they are really in a category all their own. It's tough to pay 5-10% of your vehicle value for a radiator and many just can't do it. We are looking into creating a new (cheaper) single row design that will cool the same as the double row. With fatter tubes and shorter fin we might be able to that.
Thanks,
Jeff
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Think they are worth saving for. One I need is almost 600, 400 more than the competitors but being stranded in the middle of nowhere due to a cheap pos rad. doesnt sound fun to me .
