C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Radiator-What should I buy?

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Old Jul 8, 2009 | 03:27 PM
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Default Radiator-What should I buy?

My 96 needs a better radiator, I have a new replacement rad in it now but it wouldn't cool the new motor. I see alot of duel core radiators on the market from $150.00 to $500.00, I don't mind spending the money if the more expensive rad does a better cooling job but I'm just not convinced. Let me hear your story, and what type/make /cost radiator you have.
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Old Jul 8, 2009 | 05:49 PM
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Dewitts!!!
Put one in my 92, its a shame to hide it behind the shroud.
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Old Jul 8, 2009 | 05:54 PM
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I second the Dewitts for ultimate in radiator coolness.

I don't know if your 96 is auto or manual but you could always install a trans oil cooler if auto for additional cooling and an oil cooler in either case for even more cooling.
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Old Jul 8, 2009 | 06:36 PM
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I put a DeWitts in my '96 this spring, and it's been great.
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Old Jul 8, 2009 | 07:08 PM
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John, what about a universal one with similar dimensions? I gotta believe that 412ci Reher-Morrison wants to be nice and chilled.
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Old Jul 8, 2009 | 07:35 PM
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I have an '89 with an L98 so a little different but............. I also replaced my OEM rad. with a DeWitts.

Excellent piece I highly recommend it ~ like everyone else in this thread. Increased cooling by about 40%, now I can actually cool my engine on the highway too 160* with a 160* stat in the summer heat with the A/C on! Really nice radiator and worth every penny!
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Old Jul 8, 2009 | 08:01 PM
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Originally Posted by mackeyred96
I see alot of duel core radiators on the market from $150.00 to $500.00, I don't mind spending the money if the more expensive rad does a better cooling job but I'm just not convinced. Let me hear your story, and what type/make /cost radiator you have.

You won't find a double row for $150, maybe $300. So the real range is $300-$500 and here's why.

Every aluminum radiator starts with a "core". The core is the heart and soul of the radiator as this is what dictates the heat rejection. The core is the tubes, fin, and headers that are furnace brazed together. Hopefully they are totally brazed and not partially brazed which you will never know by looking at one. The manufacturer must cut (distroy) the core in half occasionally to maintain quality control. None of the other aluminum radiator companies have a brazing furnace, so they have to buy the cores from others. In many cases these cores are from other countries and in every case they have no idea how good the core was brazed. They simply weld on end tanks and call it "made in usa" because the "radiator" was assembled in the usa.

DeWitts is the only company in the usa that builds their cores in house and controls the process 100%. In addition to distructive testing, we also run data-recorders to develop exact brazing profiles, so the process can be stored and repeated. This is why we can offer a three year warranty on our radiators, because we know exactly how the core was made.



If you choose the deWitts unit, I will knock $50 off the radiator and ship it for free. Now you get a superior quality at a good price.
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Old Jul 8, 2009 | 08:20 PM
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I installed a Dewitt in my LT4. You can feel/see the difference.

I wish I got $50 bucks off
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Old Jul 8, 2009 | 08:42 PM
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DeWitts. It stands up to use on a road course....30+ minutes at WOT or nearly WOT for most of it.
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Old Jul 8, 2009 | 08:49 PM
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I got a good deal on a new BeCool rad off the forum for $300. The only reason I bought it was the price and it had the auto cooler in it. The car runs 170-180 cruising around in the heat, Tranny stays around 190. The car never really ran hot though with the stock rad.
Although your new setup is a bit hotter than mine lol
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Old Jul 8, 2009 | 09:53 PM
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Dewitts here too. Looks like that's the consensus. You cannot go wrong with one of these.
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Old Jul 9, 2009 | 01:24 PM
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I bought a Dewitts.

It runs only a 2-3 degrees cooler cruising, however I noticed that the temperature climb is slower and the temperature drop when moving after stopped is faster.

Auto trans temp climbs in longer drives here in southern California, so I will most likely add an additional cooler which I was going to do before anyway.

I would also recommend slapping the bigmouth air dam on it.
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Old Jul 9, 2009 | 01:56 PM
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Originally Posted by John Dingman
If you choose the deWitts unit, I will knock $50 off the radiator and ship it for free. Now you get a superior quality at a good price.
Questions:

1. I have a 91 Auto. Obviously I don't want the A90M but what is the difference between the A90E and A90A?

2. Which one do I want?

3. Will that offer be good by the time I come back from vacation? 7/20?

Edit: I see that the E version has the engine oil cooler. I am not sure but do I have those connections at this time stock?

Last edited by aklim; Jul 9, 2009 at 01:59 PM.
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Old Jul 9, 2009 | 09:43 PM
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Originally Posted by aklim
Questions:

1. I have a 91 Auto. Obviously I don't want the A90M but what is the difference between the A90E and A90A?

2. Which one do I want?

3. Will that offer be good by the time I come back from vacation? 7/20?

Edit: I see that the E version has the engine oil cooler. I am not sure but do I have those connections at this time stock?
No, you only have the toc. Use A90A and yes I will extend that to you next week
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Old Jul 9, 2009 | 10:04 PM
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Originally Posted by John Dingman
No, you only have the toc. Use A90A and yes I will extend that to you next week
Can you clarify what "toc" is? Thanx.

DOH!! Transmission Oil Cooler and Engine Oil Cooler

Last edited by aklim; Jul 9, 2009 at 10:10 PM.
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Old Jul 10, 2009 | 04:53 PM
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Originally Posted by John Dingman
If you choose the deWitts unit, I will knock $50 off the radiator and ship it for free. Now you get a superior quality at a good price.
John, pm sent
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Old Jul 13, 2009 | 09:55 PM
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Thanks for everyone imput, I ordered a DeWitt today.
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To Radiator-What should I buy?

Old Jul 13, 2009 | 11:56 PM
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Originally Posted by John Dingman
If you choose the deWitts unit, I will knock $50 off the radiator and ship it for free. Now you get a superior quality at a good price.
John, I need a radiator, and want a DeWitts. Is that offer good for me as well? I need an A90M

Last edited by 1992B4C; Jul 13, 2009 at 11:57 PM. Reason: added model needed
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Old Jul 14, 2009 | 12:14 PM
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Originally Posted by 1992B4C
John, I need a radiator, and want a DeWitts. Is that offer good for me as well? I need an A90M
Give John a call 517-548-0600 and ask, I'm sure he will make the same offer.
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Old Jul 15, 2009 | 08:37 PM
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My DeWitts radiator came today, great quality part.

Thanks so much. John
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