Car Bonnet Air Vents, 1 Pair Decorative Car Styling Air Flow Intake Scoop Side Vents Universal Exterior Bonnet Hood Vent Grille Cover Self-adhesive Vent Stickers Stick on Bonnet Vents

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The most expensive and best looking route of getting a bonnet ventis to buy a bonnet with pre-cut vents or moulded vent panels as in the picture above and then you would apply a protective mesh underneath them. Always add mesh behind the vent as a stone flying into the engine at high velocity can cause major problems (it can also look cool).

Vents can be cut into the bonnet but are typically covered with a mesh of some description partly to improve appearance and partly to protect engine components from damage should a stray stone fly in its direction. This undoubtedly gives the best finish and the carbon fibre bonnets look great. This method insures that you will have a smooth professional looking finish and you can leave the bonnet unpainted or paint in a matching or contrasting colour or even add a really cool paint effect. Avoid putting the filter in an enclosed box with cold air feeds as this will alter the induction length see our cold air induction article for details.) Cold air is your friend - it carries more oxygen so the addition of vents can dramatically cool the engine bay and feed fresh cold air into the engine.It also help prevent the engine from overheating and reduced the load you are putting on your engine oil. This is what I’ve done to help prevent potential water ingress issues through the vents viewtopic.php?p=59388#p59388 ( NavigatorNI mentioned earlier that he’s done something similar).

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To alleviate the issue of misting up inside the car during wet conditions, we have a range of heaters and inline blowers to direct air towards the windscreen. These vary from standalone electrical systems to plumbed in heater systems.

Cold air is your friend - it carries more oxygen so the addition of vents can dramatically cool the engine bay and feed fresh cold air into the engine. It also help prevent the engine from overheating and reduced the load you are putting on your engine oil. Much heat comes from the exhaust part of the engine so a vent a few inches behind that area will do much to reduce the under bonnet temperature. If you are cutting a vent into your cars bodywork we suggest removing the part and cutting from the rear.

The better quality the plastic part you use the better the end effect will be. Use the plastic painting and car spraying articles to guide you and help get the perfect finish but use twice as many coats and sand down between coats if you want a perfect finish. In supercharged engines and turbo charged engines the intake air is further heated by the compression process. This heated intake air is pulled through an intercooler which helps to reduce the air charge temperatures but for this to work effectively the intercooler needs cold air flowing through it. An intercooler is simply a heat exchanger and eventually the intercooler housing will warm up (called heat soak)