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ive got a vented carbon fibre bonnet on mine, and is always out in the rain. like others have said, your engine bay does get abit dirtier, and after heavy rain the belts squeek for afew seconds on start up then everything is good as gold !

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I've seen vented bonnets with covers so you can cover it up in wet weather, and drop it out during warm weather to allow more air to flow through.

some_cs_student's bonnet is great.

There is a plate that sits under the vent and is bolted in. On hot days, unscrew the bolts and you get more air flow / vent out the heat.

If it rains bolt it back in.

Also remember some cars came standard with vents, ie. GTR R34 V-Spec's and up, Mitsubishi Evos all got stock bonnet vents and STi's... So in stock form their probley still can get some water in... Maybe take a look at them and see how they avoid getting water in.

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I have a 99 34gtr vspec however it doesnt have any vents in the bonnet at all. This is the style i was after

http://i249.photobucket.com/albums/gg232/n...to/IMG_0844.jpg

However i want it painted bayside blue to match the car. Though it looks like alot of water would get in...

If it wasnt too much trouble to swap the bonnets I could just put the normal one back on if I were worried about rain, it either rains for days or not at all here in Brisbane anyway generally.

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depends on the design of the bonnet too. if its just one vent near the front, water is likely to fall between engine and radiator - causing no harm

That's where mine is... the radiator fan pushes hot air straight out the vents, and I am yet to have a problem with the rain, and have driven it plenty... not even getting squeaky belts...

Don't even get water in the valley :D

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I have a 99 34gtr vspec however it doesnt have any vents in the bonnet at all. This is the style i was after

http://i249.photobucket.com/albums/gg232/n...to/IMG_0844.jpg

However i want it painted bayside blue to match the car. Though it looks like alot of water would get in...

If it wasnt too much trouble to swap the bonnets I could just put the normal one back on if I were worried about rain, it either rains for days or not at all here in Brisbane anyway generally.

Nice Z-Tune style bonnet.

But if ya still worried, you can sorce a V-Spec bonnet. Its actualy got a NACA Duct / Scoop - When properly implemented, it allows air to be drawn into an internal duct, often for cooling purposes, with a minimal disturbance to the flow.

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Yeah i got that "Z-Tune Style" bonnet and i have the plate underneath the vent. Haven't had any probs with rain but then again i never really unbolt the plate cos i can't be bothered lol. Sydney weather is also unpredictable lately so i just stay safe.

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