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Evo 8 radiator size

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Old Sep 12, 2025 | 08:44 PM
  #1  
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Evo 8 radiator size

Mishimoto half radiator VS full size for daily driven car.
Will the half size handle the temp in warm countries or should I go full size?
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Old Sep 13, 2025 | 07:17 PM
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From: Tupelo, MS
As long as you have good airflow through the radiator, you won't have any issues with a half sized.
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Old Sep 13, 2025 | 07:17 PM
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its 2025. dont buy mishimoto
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Old Sep 13, 2025 | 08:20 PM
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I already own the half size - the car still in build process
Basically I'm worried about the hot days and being stuck in traffic.
The airflow is fine but there is also a AC radiator in front. I have an option to replace my half radiator with a full size one. I can tell that I like the extra room inside the engine bay but keeping the fluid temp is more important
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Old Sep 15, 2025 | 01:32 PM
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Mitsubishi designed these cars with one of the best cooling systems in a production car. Why people go to half rads or forward facing setups on street cars less then 1200whp I have no clue.
Stable cooling system is always a plus!
With that being said a stock Radiator or a PWR work really well.
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Old Sep 19, 2025 | 06:43 AM
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From: northeast
Originally Posted by Doli
I already own the half size - the car still in build process
Basically I'm worried about the hot days and being stuck in traffic.
The airflow is fine but there is also a AC radiator in front. I have an option to replace my half radiator with a full size one. I can tell that I like the extra room inside the engine bay but keeping the fluid temp is more important
whats the reasoning for the half size?

if its space, CSF does have a slim radiator that frees up space. Unless you are FF
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Old Sep 19, 2025 | 07:12 AM
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A FF turbo was the actual reason.
Now I Moved it back to oem style mount. The free space is awesome but the cooling is more important for me
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Old Sep 19, 2025 | 01:54 PM
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From: PHL
Originally Posted by Abacus
Mitsubishi designed these cars with one of the best cooling systems in a production car. Why people go to half rads or forward facing setups on street cars less then 1200whp I have no clue.
Stable cooling system is always a plus!
With that being said a stock Radiator or a PWR work really well.
Gotta be true. I put a OEM Denso rad in with OEM blue coolant 2 years ago. Fan controller doesn't work and have never seen the gauge move above normal. I've read that 9 heads run cooler than 8s also.
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