Quote:
Originally Posted by 2007 ion2
I do not just want to patch over the upper grill,
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Patch it from behind - that's wat the car manufacturers do.
Use whatever will withstand the rain, and paint it black.
When the upper grille is done, block part of the lower grille.
If summers are hot, make the blocking removable.
Always keep an eye on coolant temp when doing this sort of mods.
Remove the mudflaps.
(Replacing them with a boattail will be better, but that's very obvious.)
If the gaps between the front parts (hood, lights) are big and are letting air slip into the engine compartment, use some self-adhesive rubberised draught strip to seal them.
Extend the air dam sideways to also cover part of the wheels.
You can make it a bit lower in front of the wheels.
If possible, you could also curve the air dam to match the bumper's curve.
When tyres need replacing: buy low rolling resistance tyres.
Fairing in the lights wouldn't help much I'm afraid.
They're already curved and angled.
Contrary to popular belief, bluntness on the front is not that much of an aerodynamic problem.