Do fender guards affect radiator efficiency?

So I'm building this crawler build, and me being me I slap the biggest engine in it and then the cummins drag radiator (its a mod radiator), I wanna put a fender guard on it but idk if it`ll make my engine overheat since this insane radiator can barely keep the car cool.
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This is the crawler btw

 

wrong place to ask, we serve mods here, sir

 

mans really said "sir this is a wendy's"

 

make one with and one without the fender guard, drive both full throttle, whichever heats up faster is your answer

 

I don't think it does,
there's currently no aerodynamic occlusion simulated, so unless the body panel's jbeam specifically modifies the radiator's values, it won't.