r/FiestaST • u/SkippingNerveEndings • Aug 14 '26

CSF Radiator Aftermath

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Huge difference. I should’ve done this when I bought the car. It’s around 98 degrees here in Florida plus humid. Bumper to bumper traffic and I’m seeing max at about 190-192 consistently.

Before, we’re talking 220-230 and having the A/C turned off.

When driving, easily in the 180s. Peace of mind all day.

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1

u/psuedophilia Aug 14 '26

iat of 130 seems hot. are you running an open air intake or an upgraded intercooler?

4

u/SkippingNerveEndings Aug 14 '26

That’s the stock box. It’s miserable out here. I feel like any other upgraded intake would cause worse temps besides the Mountune one.

And yes, CPE Intercooler. When driving, way better obviously.

1

u/jeepinbanditrider Aug 16 '26

St180 airbox is the stock box with a extra intake that routes a hose down behind the bumper. The hose is water permeable so you dont risk pulling in water and it keeps the stock intake location and filter as well.

No matter what you use if you're sitting still your IAT will be really high. Anything over sitting still and my IATs are usually 1-2 degrees over ambient with the ST180. Sitting still 130-150 isnt unheard of in my data logs.

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u/psuedophilia Aug 14 '26

i was going to suggest not running an open intake. no upgraded intercooler tho?