Quote:
Originally Posted by Dunkler
You think it'd definetly over heat with the bottom one dammed?
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The bottom grille is usually the most effective and the largest cooling air scoop.
So the top grille is a safer place to start.
The 1990 generations of Honda's often didn't even have an upper grille.
If that works without overheating, block part of the lower grille.
See where the AC condensor is - keep that side open if you use the AC.
You could do a lower grille block in say 3 parts, so you can add or remove parts of the blockage depending on weather and driving conditions.