vs
Engine radiator MISHIMOTO or KOYORAD
On my Miata with the factory flawed OEM coolant routing, I run a Koyorad 36mm aluminum radiator with OEM fans and it keeps temps a bit cooler than stock.
Pros: keeps temps cooler
Vehicle:
Mazda
I changed out the intake (noise maker but I love it) then everything that connects so the turbo inlet and bpv, charge pipe and a bigger tmic. A engine that can breath will be healthy.
Pros: engine can breath
Cons: noise maker
This specific spot fails on almost every subaru radiator i have worked on.
If you are lucky KoyoRad still has their sale going, I just got an aluminum radiator from my 97 legacy for $180
Pros: aluminum radiator, good price
Vehicle:
Porsche
If u get a mishimoto it won't break again
Pros: durable radiator
The radiator you could go OEM or NVA, but Koyorad is proven solid also.
Pros: proven solid
Vehicle:
Nissan
For your turbo Baja, [Koyorad](https://ebay.us/m/yadARd) is the creme de la creme.
Pros: creme de la creme
Vehicle:
Subaru
I went with a Koyorad, but for how much I’ve spent, I should have gone with a crossflow (either Supermiata or Flyin Miata). I also did a coolant reroute, which made me really regret not getting a crossflow
Cons: regret not getting crossflow, perceived poor value
I ran one for 6 years half of which being turbo. The mounts are known to fail so you want to make your own or keep an eye on them. Both sides failed on mine but Mishimoto’s customer service is top tier and they sent me a brand new unit (whole radiator NIB even though only mounts failed) no questions asked. The drain plug is also known to snap if you over tighten it. Again, they sent me a brand new unit when that happened.
Pros: ran for 6 years, excellent customer service
Cons: mounts fail, drain plug snaps
Vehicle:
Mazda
I went through 4 mishitis in 2.5 years DO NOT each replacement cost $45 for “shipping.” I lost money and time dealing with recycled beer can BS.
Cons: poor quality, expensive shipping, unreliable
I have one in my turbo VVT build. It’s big but seems inefficient, to the point that I suspect a properly designed crossflow radiator would shed much more heat by letting the coolant spend a proper amount of time in the radiator as opposed to this giant heat-sink top down tank. It’s on my list of things to replace.
Pros: big
Cons: seems inefficient, on list to replace
Vehicle:
Mazda
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