A heat shield will help prevent your air intake from drawing hot air from your engine into your intake. Cold air helps improve the combustion rate of the engine which improves performance. When hot air is sucked into the engine, it degrades the performance of the engine because the air to fuel ratio is thrown off. You can make your own heat shield for your air intake yourself.
- Skill level:
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Things you need
- Plastic 5 gallon dustbin
- Cutting tool
- Insulation strips
- 2 L-brackets
- 4 screws and bolts
Place the five-gallon dustbin in your engine bay where your cold air intake rests so that you can measure the length and width that you will need to cut the dustbin to fit. Cut the bottom out of the dustbin and one of the sides to allow you to fit it into the engine bay around your cold air intake. You want the dustbin to be covering each side of the cold air intake.
Cut the dustbin as necessary and measure the diameter of the intake tubing. Align where the intake tube will fit through the dustbin and use the cutting tool to make a hole in the dustbin for the intake tube to fit through. Be sure to leave enough room for the air filter.
Use glue to put on the edges of the dustbin that you cut and apply insulation stripping on the edges to allow for the dustbin to fit better in the engine bay and also to allow for better heat insulation.
Look for a mounting area for two brackets to be attached to the bumper well of your vehicle and mark the spots with a marker.
Use a drill to drill the two holes into the bumper well. Be careful not to drill into a reservoir or other important part of the vehicle. Drill two corresponding holes into the dustbin and align the brackets and dustbin onto the bumper well.
Place screws through the holes and tighten bolts onto the screws to tighten the dustbin securely into place. Your cold air intake will now be shielded from the engine heat.
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