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E-Ray Auxilliary Radiator

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Old Jun 3, 2026 | 04:40 PM
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Default E-Ray Auxilliary Radiator

Can any of you E-Ray owners tell me if the E-Ray has the additional engine radiator in the driver's side rear of the vehicle, just like the European Stingray has the added radiator? I have tried to Google the cooling systems in the forums and elsewhere and not found any definitive information.

Thanks for your time and help.
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Old Jun 3, 2026 | 09:52 PM
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No radiator. Here’s a picture of my driver’s side intake. There’s a fan there, maybe for addition air flow in the engine compartment???
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Old Jun 3, 2026 | 10:02 PM
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Originally Posted by Paul Langlie
Can any of you E-Ray owners tell me if the E-Ray has the additional engine radiator in the driver's side rear of the vehicle, just like the European Stingray has the added radiator? I have tried to Google the cooling systems in the forums and elsewhere and not found any definitive information.

Thanks for your time and help.
They have the same extra cooling that the Z51 package has.
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Old Jun 3, 2026 | 10:10 PM
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Thank you for the photos Q Pilot. That helps clear some things up. So it sounds to me like the European radiator and crossover hoses would be a good addition to an E-Ray to keep the temperatures in check in warm climates as well as if you are a track junky. I wonder if the exact part numbers work across the board for Stingray to E-Ray or narrow body to wide body?

Any thoughts??
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Old Jun 3, 2026 | 11:02 PM
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Originally Posted by Paul Langlie
Thank you for the photos Q Pilot. That helps clear some things up. So it sounds to me like the European radiator and crossover hoses would be a good addition to an E-Ray to keep the temperatures in check in warm climates as well as if you are a track junky. I wonder if the exact part numbers work across the board for Stingray to E-Ray or narrow body to wide body?

Any thoughts??
Engine coolant temperature?
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Old Jun 3, 2026 | 11:05 PM
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Originally Posted by Tonylmiller
Engine coolant temperature?
Yes
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Old Jun 3, 2026 | 11:54 PM
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Originally Posted by Paul Langlie
Thank you for the photos Q Pilot. That helps clear some things up. So it sounds to me like the European radiator and crossover hoses would be a good addition to an E-Ray to keep the temperatures in check in warm climates as well as if you are a track junky. I wonder if the exact part numbers work across the board for Stingray to E-Ray or narrow body to wide body?

Any thoughts??
I live in the Las Vegas area, my temperature normally runs between 165 to 185. I don’t track my E-Ray but occasionally punch it. I did the Ron Fellows E-Ray class at the end of July last year and it was hot. None of our class E-Rays had any overheating issues, we always did a cool down lap which helped. So I don’t think it necessary. There was an older thread where an E-Ray forum member added the extra radiator but I can’t find it.

update: found the thread.
https://www.corvetteforum.com/forums...n-my-eray.html

Last edited by Q Pilot; Jun 3, 2026 at 11:58 PM.
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Old Yesterday | 01:13 AM
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Very best E-Ray technical demonstration and discussion, Jay Leno and Tadge.
At the 14:50 mark they start to talk about cooling systems, E-Ray having the greatest amount of cooling of any normally aspirated Corvette.
And, at one point Tadge talks about being at Spring Mountain with 110 degree outside temps, and the coolest place to be is tearing up the track with the A/C blowing on you, and the cars having no problem handling the temps.

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Old Yesterday | 10:47 AM
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Someone can correct me if I’m wrong, but they added V09 to the GSX and the front cheek coolers are thicker cores from the Z06 to get rid of the center one to help keep frunk temps down is my understanding.

Last edited by PRE-Z06; Yesterday at 10:48 AM.
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Old Yesterday | 01:05 PM
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Originally Posted by PRE-Z06
Someone can correct me if I’m wrong, but they added V09 to the GSX and the front cheek coolers are thicker cores from the Z06 to get rid of the center one to help keep frunk temps down is my understanding.
I believe that is correct. Difficult to find actual schematics regarding this....
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Old Yesterday | 06:21 PM
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Originally Posted by Paul Langlie
I believe that is correct. Difficult to find actual schematics regarding this....
See post 14, hope that helps.
https://www.corvetteforum.com/forums...g-package.html
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