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Need help finding extra cooling radiator

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Old May 21, 2011 | 10:04 PM
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Default Need help finding extra cooling radiator

I need to find a vendor or dealer who sells "extra cooling" radiators to fit my 2003 Auto Vette. I do not want to jump thru hoops to get it to fit my car either, after all, if you pay a bunch of money for a unit it should fit properly. The car is 98% drag race so while I want it to keep the car cooler then OEM single core, I will not cut the car up to make it fit, and want the OEM fans to fit.
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Old May 21, 2011 | 10:50 PM
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Get a DeWitts and all will be good
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Old May 22, 2011 | 08:23 AM
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Originally Posted by peter pan
Get a DeWitts and all will be good
Have you installed one in your own car? If so, what temperature drop did you see by installing it? Was it a true "drop in" or did you have to modify anything, like fan shroud, cooling fan mounts or brackets, etc.?
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Old May 22, 2011 | 08:49 AM
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There are two different direct bolt in dual core aluminum radiators available for your car. The Dewitts is the one that I use in my track car. http://www.dewitts.com/ It is truly a direct bolt in using the stock fans, mounts etc. I saw a 20+ degree drop in coolant temps after installation. The other is a Ron Davis - http://www.rondavisradiators.com/ They also come highly recommended by many forum members. The Davis is a little more pricy than the Dewitts. You could not go wrong with either unit.
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Old May 22, 2011 | 09:24 AM
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On the DeWitts radiator, A01A, for my 03 Auto, would be $665 shipped to me, are there any vendors here that can give me a better price then this? I am ready to order a radiator this week from somebody to be ready for the next race event on June 11th.
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Old May 22, 2011 | 03:57 PM
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Originally Posted by 8VETTE7
wait until Tom DeWitt has his annual sale.

When was that "Annual" sale at?
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Old May 22, 2011 | 11:05 PM
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Originally Posted by Red98C5
Have you installed one in your own car? If so, what temperature drop did you see by installing it? Was it a true "drop in" or did you have to modify anything, like fan shroud, cooling fan mounts or brackets, etc.?
I had one on my boosted C5 and put it on when I did the motor and boost at the same time so no before or after temps, but in Texas weather I was able to run my AC and not get over 220 in stop and go traffic and normal driving about 194 in the summer.
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Old May 22, 2011 | 11:12 PM
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Originally Posted by peter pan
I had one on my boosted C5 and put it on when I did the motor and boost at the same time so no before or after temps, but in Texas weather I was able to run my AC and not get over 220 in stop and go traffic and normal driving about 194 in the summer.
When you did this, did you have to modify the fan shroud or the cooling fan assy to fit? When you had the original radiator and before you installed the blower, what were the temps the car ran at under the same conditions? Also, did you have a low temp thermostat before the blower or even after?
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Old May 22, 2011 | 11:31 PM
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While I have a dewitts, forum vendor RSD also has a direct fit dual core radiator
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Old May 22, 2011 | 11:59 PM
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Originally Posted by tlove32
While I have a dewitts, forum vendor RSD also has a direct fit dual core radiator
I cannot find his website, do you have it?
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Old May 23, 2011 | 12:24 AM
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Originally Posted by Red98C5
I cannot find his website, do you have it?
Here you go.
RaceSpecialtyDesigns.com

Steve@RaceSpecialtyDesigns.com

Last edited by Mr.Bill; May 23, 2011 at 12:27 AM.
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Old May 23, 2011 | 07:19 AM
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Thanks, I sent an email to them
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Old May 23, 2011 | 07:47 AM
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I have a DeWitts in my magnacharged vette combined with the low temp thermostat and heat extractor hood the car never gets hotter than 194* in traffic.....fit was great and it's good peace of mind
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Old Jul 23, 2011 | 09:45 PM
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Originally Posted by peter pan
I had one on my boosted C5 and put it on when I did the motor and boost at the same time so no before or after temps, but in Texas weather I was able to run my AC and not get over 220 in stop and go traffic and normal driving about 194 in the summer.
WOW, I wish mine was like that. What was your boosted setup? engine size, type of blower (YSi?), what radiator, what fans, what water pump and what thermostat?

Last edited by D C; Jul 23, 2011 at 09:56 PM.
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Old Jul 23, 2011 | 09:50 PM
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Originally Posted by peter pan
Get a DeWitts and all will be good
I got the same one for mine but I did not get it for the A4 I got it for the MN6 and use a external Tranny Cooler-

By doing this you keep both heat sources away from eachother and keep things much cooler!

Thanks,Matt
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Old Jul 23, 2011 | 09:51 PM
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They are on the left side of the forum under cooling:
http://www.dewitts.com/

Thanks,Matt
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Old Jul 24, 2011 | 09:11 AM
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Forum member Patches recently added a DeWitt's and kept the factory fans. excellent pics on the install:

http://forums.corvetteforum.com/c5-g...ver-again.html

Good Luck!
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Old Jul 24, 2011 | 10:01 AM
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This thread is good timing as I am thinking of a new radiator as well. My car now has a S/C and trans cooler, and things are getting a little packed in the front end. I was driving in 99* temps with A/C on and I was at 217*. I have seen others run at 220-230*. Is it worth it to invest $600ish on a new DeWitts with my temps at 217* on 99* day, or Do you think I'm good with stock unit?
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Old Jul 24, 2011 | 10:15 AM
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Have you cleaned your radiator out ? they get clogged with dirt, sand and grass very easily.
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Old Jul 24, 2011 | 10:20 AM
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Originally Posted by AU N EGL
Have you cleaned your radiator out ? they get clogged with dirt, sand and grass very easily.
My S/C was put in 3 months ago and all the debris was removed and new coolant was put in. It only runs 210-217* when it is 92*+. I am at 185-195 on normal days, 90* or cooler!
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