Rear Window Vents
May 13, 2023, 09:04 AM
#1
Rear Window Vents
Do these help at all, or are they possibly even a hindrance? Thinking of autox and track where you're required to have front windows open, to have some ventilation in the rear. Does air catch inside from the front windows and make the rear act like a parachute? Not really right?
May 16, 2023, 05:03 PM
#3
EvoM Guru
Does it feel like wind actually hits you when u have the windows down? I doubt it does much as i would assume it would be more the air being sucked out of the car rather than coming in. would really be more of an advantage to have those vents that go in the top of the rear windows to help suck warm air out on hot days. apart from that cant see much of an advantage
You guys have those rules where front windows need to be down so cant really see much advantage to ducting air in from the rear and pulling it to the front as we use for driver cooling.
You guys have those rules where front windows need to be down so cant really see much advantage to ducting air in from the rear and pulling it to the front as we use for driver cooling.
May 18, 2023, 12:42 AM
#4
Typically if you have a front left window slightly down, and a rear right window slightly down: the air will come in through the back window and out the front window.
The edge over the windscreen sides is low pressure. Which is why you often see weak FRP doors pull out (with the vacuum).
The edge over the windscreen sides is low pressure. Which is why you often see weak FRP doors pull out (with the vacuum).
May 18, 2023, 05:57 AM
#5
Typically if you have a front left window slightly down, and a rear right window slightly down: the air will come in through the back window and out the front window.
The edge over the windscreen sides is low pressure. Which is why you often see weak FRP doors pull out (with the vacuum).
The edge over the windscreen sides is low pressure. Which is why you often see weak FRP doors pull out (with the vacuum).
May 22, 2023, 07:45 AM
#7
Do these help at all, or are they possibly even a hindrance? Thinking of autox and track where you're required to have front windows open, to have some ventilation in the rear. Does air catch inside from the front windows and make the rear act like a parachute? Not really right?
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May 22, 2023, 12:25 PM
#12
anyway i stick my head with a helmet on in there to turn off the engine so I think that will be a nuisance
May 22, 2023, 12:42 PM
#13
ones I hate them too. But the oem ones look pretty slick imo, has that all weather look, goes good with a set of ralliart mudflaps. I associate them more with UK spec evos. Helps with cabin pressure also & yea my head hits the thing every time I reach in the window.
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ViciousLSD (May 22, 2023)
May 22, 2023, 12:58 PM
#14
I definitely see that point. Like those useless hardware store add-ons "dads" put on their ford explorer haha. If they arent the genuine ones I hate them too. But the oem ones look pretty slick imo, has that all weather look, goes good with a set of ralliart mudflaps. I associate them more with UK spec evos. Helps with cabin pressure also & yea my head hits the thing every time I reach in the window.
ones I hate them too. But the oem ones look pretty slick imo, has that all weather look, goes good with a set of ralliart mudflaps. I associate them more with UK spec evos. Helps with cabin pressure also & yea my head hits the thing every time I reach in the window.
May 23, 2023, 05:50 AM
#15
Evolving Member
I can't find the article about the rear window vents I previously read, but it talked about their use paired with a roof scoop.
