Discussion
It may of been discussed on this forum in the past I would be surprised if it has not, can I open the two bonnet vents / scoops up on a vxr monaro without any problems ?, may be best for summer only due to rain ect getting on the ignition system, it seems to me the air must get trapped in the vents with no escape.
bobchevy said:
It may of been discussed on this forum in the past I would be surprised if it has not, can I open the two bonnet vents / scoops up on a vxr monaro without any problems ?, may be best for summer only due to rain ect getting on the ignition system, it seems to me the air must get trapped in the vents with no escape.
Not been discussed for a while, but IIRC no benefit on cooling through opening the vents, and they won't work as ram air ducts either due to position....
In brief synopsis was leave 'em alone, youj'll only get dirt on your engine...
Wolfracer said:
Tattooboy said:
From memory I think you can just pull the rubber bit's off from under the bonnet to let a bit more air in??
YThink its positive atmos in the engine bay, so would only let air out..., but they don't really flow the right way for that? IMHO.
all I know is that the rubber bits come off in your hand if your hand fisted enougth to pull one off wondering if they are stuck on or not !! 
Just clipped in iirc.
From the discussions in the dim and distant past the consensus was that all the air rushing through the front of the car causes positive pressure and still(ish) air in the top of the engine bay.
If it was +ve, then letting more air in would have no benefit as it is already "full" of air. If engine bay was -ve then any extra ventilation would defimitely help cooling.
Another way to think about it is if they were of use, why did GM block them up? And come to that why can't you get mods for them to divert the air?
Tis like a blunt pencil.
From the discussions in the dim and distant past the consensus was that all the air rushing through the front of the car causes positive pressure and still(ish) air in the top of the engine bay.
If it was +ve, then letting more air in would have no benefit as it is already "full" of air. If engine bay was -ve then any extra ventilation would defimitely help cooling.
Another way to think about it is if they were of use, why did GM block them up? And come to that why can't you get mods for them to divert the air?
Tis like a blunt pencil.
If there was no air movement in the engine bay, surely the rads wouldn't work properly? I would have thought that fast moving air under the car would draw air downwards and out of the engine bay, enough to allow air to flow in from the front for the rad, and air bonnet vents if open?
Ciscas said:
In theory it will increase drag and increase fuelburn/ decrease top speed. In theory that is 
I have open vents and a load more stamped into my bonnet, so far up to 189mph its not hindered performance and my fans hardly ever cut in during hot weather. I also removed all the nasty sound proofing and polished the paint work up.
Edited by S800VXR on Saturday 6th February 17:10
I think strictly speaking that's not a banshee, although it does have the same rear louvres. The banshee intake vents are not as nice imo. This seems to be a custom setup, but by far the best I'd say. A few of them on this page; www.savage-fibreglass.com/Custom-bonnets.htm
Edited by _AJ_ on Monday 8th February 09:36
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