Radiator - ZR-1 Net Registry Forums

Kb7tif · 10-04-2009

Well maybe this is somewhat out of place but what else is new.
I just replaced my radiator on a ford escort. (May I add this radiator was clean no debris whatsoever) 28.00 ebay lifetime warranty yadayada. There was nothing wrong with the old one but engine ran very warm at times. At 65mph this car would eventually reach 240 with fan running constantly. After this radiator was replaced the engine now runs at 160 fan Off at 65mph.
With stock corvette radiators availe for our cars at 120$ I think its safe to say that its a pretty good investment to do a fresh radiator swap and watch the temp drop. =D>

Hammer · 10-04-2009

Yep, when I do the cooling system this winter I will add a new radiator along with a new thermostat and the Samco hoses.

Corvette Recycling has the radiators for $100.

http://www.corvetterecycling.com/199...p/52473260.htm

JAX S50 · 10-04-2009

I just bought a oem radiator, and I noticed right away that the atf cooler seems to be blocking about 90% of the flow at the inlet/outlet connector should I be concerned??

Kb7tif · 10-04-2009

Quote:

Originally Posted by JAX S50

I just bought a oem radiator, and I noticed right away that the atf cooler seems to be blocking about 90% of the flow at the inlet/outlet connector should I be concerned??

Well maybe. The side tanks are removable- hence so is the AT cooler portion.

VetteMed · 10-04-2009

I was having cooling issues with my '91 ZR-1 with 65K miles. The OEM radiator was about 75% blocked to airflow due to debris between the fins, who knows what it looked like inside. Replaced with the OEM replacement, and yes, the ATF cooler blocks the inlet, but it doesn't hurt the car's ability to run cool. I haven't seen the temp gauge even reach the middle, while stopped in traffic in 95 degree heat.

Kb7tif · 10-04-2009

Well for giggles I just went out and took the side tank off the radiator I pulled. It has the unused trans cooler. All this is on the escort radiator (90% as large as the corvette's) its a hollow tube that runs 3/4 of the length of the side tank. It popped right out. You would have to find a way to seal the side tank once the AT cooler is out.
Since the NOS radiators availe are Gm products I would think the side tanks are interchangeable.
The Factory service manual covers pulling these tanks and replacing the AT cooler in the side tanks.
I had the side tank off and the AT cooler portion in my hand in 10 minutes.

After pulling this out I can see there would be Minimal restriction from the AT cooler in the questioned in the post although.

Kb7tif · 10-25-2009

Well I just put in the new radiator, I decided to swap out the non auto side tank from my old unit on to the new one. I would say after seeing the inside of these new side tanks with the AT cooler not to worry there wil be plenty of flow left alone. (pita)
The old radiator I took out of there looked fine,but was about 50% plugged up between the fins. even after pressure washing thing it is pretty well restricted. New rad Day and night difference. Like you guys said.

10-04-2009	#1
Kb7tif Join Date: May 2009 Location: S Nevada Posts: 352	Radiator Well maybe this is somewhat out of place but what else is new. I just replaced my radiator on a ford escort. (May I add this radiator was clean no debris whatsoever) 28.00 ebay lifetime warranty yadayada. There was nothing wrong with the old one but engine ran very warm at times. At 65mph this car would eventually reach 240 with fan running constantly. After this radiator was replaced the engine now runs at 160 fan Off at 65mph. With stock corvette radiators availe for our cars at 120$ I think its safe to say that its a pretty good investment to do a fresh radiator swap and watch the temp drop. =D> __________________ 1995 Convertible Supercharged Auto 1974 454 550hp (avatar car) On the blocks- -Scharger install ! 1992-Zr-1 Sold. Watson Headers Ported Plenum, Housings Random tech cats Fidanza Flywheel Chipped, Relocated Mat Woods 165 stat Borlas, Straights 1996 Lt4 Sold 1994 Lt1 Sold 2004 Z06 Sold AKA** Illenema Last edited by Kb7tif; 10-04-2009 at 07:33 PM.

10-04-2009	#2
Hammer Join Date: Apr 2006 Location: Ideho Posts: 2,653	Re: Radiator Yep, when I do the cooling system this winter I will add a new radiator along with a new thermostat and the Samco hoses. Corvette Recycling has the radiators for $100. http://www.corvetterecycling.com/199...p/52473260.htm __________________ [I][FONT=Comic Sans MS]John Boyd[/FONT][/I] [I][FONT=Comic Sans MS][SIZE=1]Ideho[/SIZE][/FONT][/I] [FONT=Comic Sans MS][SIZE=1][I]2015 ZL1 [/I][I]Camaro #1121 BLACK/BLACK 6 SPD (540 RWHP)[/I][/SIZE][/FONT] [I][FONT=Comic Sans MS][SIZE=1]1991 ZR-1 #458 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK 72[/COLOR]k miles ([B][COLOR=red]SOLD[/COLOR][/B]) 1991 ZR-1 #473 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK [/COLOR]37k miles ([B][COLOR=red]SOLD[/COLOR][/B])[/SIZE][/FONT][/I]

10-04-2009	#3
JAX S50 Join Date: Jun 2009 Location: Menifee, Calif Posts: 22	Re: Radiator I just bought a oem radiator, and I noticed right away that the atf cooler seems to be blocking about 90% of the flow at the inlet/outlet connector should I be concerned?? Last edited by JAX S50; 10-04-2009 at 04:07 PM. Reason: forgot something

10-04-2009	#5
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,828	Re: Radiator I was having cooling issues with my '91 ZR-1 with 65K miles. The OEM radiator was about 75% blocked to airflow due to debris between the fins, who knows what it looked like inside. Replaced with the OEM replacement, and yes, the ATF cooler blocks the inlet, but it doesn't hurt the car's ability to run cool. I haven't seen the temp gauge even reach the middle, while stopped in traffic in 95 degree heat.

10-04-2009	#6
Kb7tif Join Date: May 2009 Location: S Nevada Posts: 352	Re: Radiator Well for giggles I just went out and took the side tank off the radiator I pulled. It has the unused trans cooler. All this is on the escort radiator (90% as large as the corvette's) its a hollow tube that runs 3/4 of the length of the side tank. It popped right out. You would have to find a way to seal the side tank once the AT cooler is out. Since the NOS radiators availe are Gm products I would think the side tanks are interchangeable. The Factory service manual covers pulling these tanks and replacing the AT cooler in the side tanks. I had the side tank off and the AT cooler portion in my hand in 10 minutes. After pulling this out I can see there would be Minimal restriction from the AT cooler in the questioned in the post although. __________________ 1995 Convertible Supercharged Auto 1974 454 550hp (avatar car) On the blocks- -Scharger install ! 1992-Zr-1 Sold. Watson Headers Ported Plenum, Housings Random tech cats Fidanza Flywheel Chipped, Relocated Mat Woods 165 stat Borlas, Straights 1996 Lt4 Sold 1994 Lt1 Sold 2004 Z06 Sold AKA** Illenema Last edited by Kb7tif; 10-04-2009 at 05:00 PM.

10-25-2009	#7
Kb7tif Join Date: May 2009 Location: S Nevada Posts: 352	Re: Radiator Well I just put in the new radiator, I decided to swap out the non auto side tank from my old unit on to the new one. I would say after seeing the inside of these new side tanks with the AT cooler not to worry there wil be plenty of flow left alone. (pita) The old radiator I took out of there looked fine,but was about 50% plugged up between the fins. even after pressure washing thing it is pretty well restricted. New rad Day and night difference. Like you guys said. __________________ 1995 Convertible Supercharged Auto 1974 454 550hp (avatar car) On the blocks- -Scharger install ! 1992-Zr-1 Sold. Watson Headers Ported Plenum, Housings Random tech cats Fidanza Flywheel Chipped, Relocated Mat Woods 165 stat Borlas, Straights 1996 Lt4 Sold 1994 Lt1 Sold 2004 Z06 Sold AKA** Illenema Last edited by Kb7tif; 10-25-2009 at 01:28 PM.

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