Louvered vents in a car are used to encourage cooling, normally of the engine. Some high-performance cars, such as the Subaru Impreza and Mitsubishi Evo, come with bonnet louvres already installed as extra cooling is required for the engine because a turbo has been installed. Under normal circumstances, installing vents is unnecessary but if you have made modifications to your car's engine or you live in a very warm climate these can be installed relatively simply.
- Skill level:
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Things you need
- Ankle grinder
- Rivet gun or drill
- Rivets or screws
- Louvre vent set or chicken wire
Decide where it is best to put the vent. As it needs to cool the engine, make sure it is near the turbo charger.
Measure out how large the vent is. If you are using a prefabricated louvre vent measure this with a tape measure; however, if you are using chicken wire it is a personal preference.
Cut the hole in the bonnet using the ankle grinder. Be very careful as if you make a mistake it is impossible to correct.
Smooth the edges of the hole with the ankle grinder so to create a smooth finish.
Fit the louvered vent using either screws or rivets. If it is pre-made, consult the manufacturer's guidelines. If you are using chicken wire, stretch it across the hole from the underside of the bonnet and secure using either screws or rivets from the top.
Replace the bonnet on the car using the spanner.
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