radiator needed
Thread Starter
Burning Brakes
Joined: Mar 2005
Posts: 1,096
Likes: 1
From: Murfreesboro TN
radiator needed
recently I got a d1sc put on my car and the next thing I got to do is to upgrade to a better radiator...I need help trying to find the best deal out there .. 
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Le Mans Master
Joined: Jan 2001
Posts: 8,238
Likes: 0
From: Lakeland, Center of Florida Fl
You can try Rick Anthony Moto. he is a vendor on here and has good price points on DeWitts Alum. Rad.
BeCool also makes one and for the rich people there is the Ron Davis.
Jon
BeCool also makes one and for the rich people there is the Ron Davis.
Jon
Last edited by XCELER8; May 29, 2005 at 10:58 PM.
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Originally Posted by Slovette2000
recently I got a d1sc put on my car and the next thing I got to do is to upgrade to a better radiator...I need help trying to find the best deal out there .. ..
..C5 Direct Fit
Pro
Joined: Oct 2004
Posts: 725
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From: Louisiana
St. Jude Donor '05-'06
Will this radiator support 700+ RWHP? I live in the south where it is hot and humid. I will be running a 383 stroker with F1R and A4 Transmission. I want to be able to drive my car in the summer with air conditioning on long trips with the best heat protection possible, I dont know if my stock radiator will work out at this point or not.... just trying to do some preventative mods..Thanks for any suggestions. 
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Originally Posted by ONealLaw
Will this radiator support 700+ RWHP? I live in the south where it is hot and humid. I will be running a 383 stroker with F1R and A4 Transmission. I want to be able to drive my car in the summer with air conditioning on long trips with the best heat protection possible, I dont know if my stock radiator will work out at this point or not.... just trying to do some preventative mods..Thanks for any suggestions.
I think it will be enough because the radiator has twice the cooling capacity as the original. Two rows instead of one. In the end there really isn't much of a choice because you can't get a bigger radiator in there without a ton of mods and cutting.
Supporting Vendor
Joined: Jul 2003
Posts: 6,486
Likes: 2
From: http://www.mphparts.com 800-364-1975
Originally Posted by Tom DeWitt
I try to avoid HP ratings on radiators, although most of the other guys are doing that. Horsepower and heat generation are not linear, in other words, a 700hp engine doesn't have twice the heat as a 350hp. Sure it has more heat, but not twice as much. You also do not put out a continous 700 hp, this is only peaks.
I think it will be enough because the radiator has twice the cooling capacity as the original. Two rows instead of one. In the end there really isn't much of a choice because you can't get a bigger radiator in there without a ton of mods and cutting.
I think it will be enough because the radiator has twice the cooling capacity as the original. Two rows instead of one. In the end there really isn't much of a choice because you can't get a bigger radiator in there without a ton of mods and cutting.
Summer is rolling around and I can tell you that your car will not overheat with the Dewitt's radiator. With the AC on in stop and go I am usually under 220 degrees coolant temp. Obviously though, with the motor that hot, your intercooler is going to warm up as well and you're not in an environment where you should be racing the car around (not that you should really be racing with the AC on anyway...)
I am going to fab up a fan shroud that is welded on to the radiator so it has a perfect seal, sort of like what you see here:
I already have 2 large SPAL fans (had to seriously trim up the stock fan shroud to make them fit) so other than the fabbing of the shroud and welding it should be straightforward. I am hoping this increases the efficiency of the fans because I'd like to be able to cruise around with the AC on and see 200 degrees max.
Hope this helps.
Le Mans Master
Joined: Aug 2001
Posts: 7,064
Likes: 18
From: Arizona
I have a Ron Davis with stock waterpump and 160 thermo; fans are set around 185. I am also watercooling my turbos and I never see temps over 195.... I live in AZ where we have 100 days over 100 degrees.
Supporting Vendor
Joined: Jul 2003
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From: http://www.mphparts.com 800-364-1975
Originally Posted by ICULUKN-C5
I have a Ron Davis with stock waterpump and 160 thermo; fans are set around 185. I am also watercooling my turbos and I never see temps over 195.... I live in AZ where we have 100 days over 100 degrees.
My Dewitts has served me well over the years but I think as I start pushing more and more power through this car I might need something more. I am not sure if the Ron Davis somehow cools your coolant any better than the Dewitts though.
Last edited by Tony @ MPH; May 31, 2005 at 11:45 AM.
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Le Mans Master
Joined: Aug 2001
Posts: 7,064
Likes: 18
From: Arizona
Originally Posted by diynoob
Does your Ron Davis also have the oil cooler in it? Are you using it, and if so, how has that helped?
My Dewitts has served me well over the years but I think as I start pushing more and more power through this car I might need something more. I am not sure if the Ron Davis somehow cools your coolant any better than the Dewitts though.
My Dewitts has served me well over the years but I think as I start pushing more and more power through this car I might need something more. I am not sure if the Ron Davis somehow cools your coolant any better than the Dewitts though.
It does have the oil cooler in it.. but I am not using it at this time. I was told that I will loose oil pressure if I run a cooler... I never owned a Dewitts radiator, but I like the Ron Davis... (I had one in my other vette too). Its a little pricey... but to get good temps when water cooling turbos is worth it..
Supporting Vendor
Joined: Jul 2003
Posts: 6,486
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From: http://www.mphparts.com 800-364-1975
Originally Posted by ICULUKN-C5
It does have the oil cooler in it.. but I am not using it at this time. I was told that I will loose oil pressure if I run a cooler... I never owned a Dewitts radiator, but I like the Ron Davis... (I had one in my other vette too). Its a little pricey... but to get good temps when water cooling turbos is worth it..
LPE's oil cooler uses -10 fittings which they say causes zero pressure drop. It looks like the Ron Davis has -12 fittings, which should avoid a pressure drop as well, as long as the tubing of the cooler is also as large.
Le Mans Master
Joined: Aug 2001
Posts: 7,064
Likes: 18
From: Arizona
I will keep that in mind.. however .. even with the oil going to my turbos.. I really have to beat on the car to get my oil over 212 (even in this heat). Now ... I also do not auto cross the car, mostly 1/4 mile and freeway runs.
Supporting Vendor
Joined: Jul 2003
Posts: 6,486
Likes: 2
From: http://www.mphparts.com 800-364-1975
Wanna trade cars? 
Mine gets hot real easy. I was seeing 250F oil temps a couple of weeks ago with just minor beating of the car, with the AC on. At 212 I really wouldn't worry about cooling the oil!
Mine gets hot real easy. I was seeing 250F oil temps a couple of weeks ago with just minor beating of the car, with the AC on. At 212 I really wouldn't worry about cooling the oil!
Le Mans Master
Joined: Aug 2001
Posts: 7,064
Likes: 18
From: Arizona
Originally Posted by diynoob
Wanna trade cars? Mine gets hot real easy. I was seeing 250F oil temps a couple of weeks ago with just minor beating of the car, with the AC on. At 212 I really wouldn't worry about cooling the oil!
Mine gets hot real easy. I was seeing 250F oil temps a couple of weeks ago with just minor beating of the car, with the AC on. At 212 I really wouldn't worry about cooling the oil!
Race Director
Joined: Jan 2003
Posts: 10,838
Likes: 1
From: Volusia. Las Vegas FL, NV
Originally Posted by Tom DeWitt
Pro
Joined: Oct 2004
Posts: 725
Likes: 0
From: Louisiana
St. Jude Donor '05-'06
Originally Posted by Tom DeWitt
I try to avoid HP ratings on radiators, although most of the other guys are doing that. Horsepower and heat generation are not linear, in other words, a 700hp engine doesn't have twice the heat as a 350hp. Sure it has more heat, but not twice as much. You also do not put out a continous 700 hp, this is only peaks.
I think it will be enough because the radiator has twice the cooling capacity as the original. Two rows instead of one. In the end there really isn't much of a choice because you can't get a bigger radiator in there without a ton of mods and cutting.
I think it will be enough because the radiator has twice the cooling capacity as the original. Two rows instead of one. In the end there really isn't much of a choice because you can't get a bigger radiator in there without a ton of mods and cutting.
Thanks good info.