Bonnet Vents.
#1
Bonnet Vents.
Can anyone tell me why the bonnet vents on my Classic have blanking plates on the underside ? Is there any advantages/disadvantages if i removed these plates ?
#3
Bonnet Vents
Water getting into engine bay i know would be bit of a problem but removing these blanking plates would it improve air flow through the engine bay etc ?
Originally Posted by morpheous
Water mainly
#4
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so just what purpose do the vents actually serve if they are blanked off? i had thought of opening mine, thinking that letting heat out or cool air in would be a good move...anyone able to answer that one?
#5
Originally Posted by remfanuk
so just what purpose do the vents actually serve if they are blanked off? i had thought of opening mine, thinking that letting heat out or cool air in would be a good move...anyone able to answer that one?
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The men who know on here claim that the engine bay is desiged to flow air through the grills at the front which combines with the main vent flow to draw the air over the gearbox and out the back. removing the covers apparently disrupts the flow and actually increases under bonnet temps.
That said, I've removed my driver's side one and boxed off my induction kit.
That said, I've removed my driver's side one and boxed off my induction kit.
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Additionally.
Water ingress around the the MAF area is not good. Also removing the blanking plate from the drivers side vent will cause a chimney effect and will actually draw hot air to the airbox area.
They are essentially cosmetic.
Water ingress around the the MAF area is not good. Also removing the blanking plate from the drivers side vent will cause a chimney effect and will actually draw hot air to the airbox area.
They are essentially cosmetic.
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Originally Posted by Fizz
a better comprimise as I did on mine is to remove them wind a nut onto the thread, remove the foam from the plates and then put them back on. This creates a nice gap around the edge letting more heat out and some air in at speed and no water in when parked
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Originally Posted by JTaylor
Additionally.
Water ingress around the the MAF area is not good. Also removing the blanking plate from the drivers side vent will cause a chimney effect and will actually draw hot air to the airbox area.
They are essentially cosmetic.
Water ingress around the the MAF area is not good. Also removing the blanking plate from the drivers side vent will cause a chimney effect and will actually draw hot air to the airbox area.
They are essentially cosmetic.
I think they were originnally for rally cars when you weren't allowed to change panels from homolagated models...
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Originally Posted by tath
Not if you separate the engine from the induction area. As far as I can see, I'm routing in air through the foglight hole into the boxed off area and out the vent.
I think they were originnally for rally cars when you weren't allowed to change panels from homolagated models...
I think they were originnally for rally cars when you weren't allowed to change panels from homolagated models...
P.S. I was considering routing from the foglight. I take it you've had no issues with water. This was a concern of a local tuner although I'm not convinced it'd be a problem.
J
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Originally Posted by JTaylor
If your air box is enclosed, great. This doesn't detract from the fact you're are drawing hot air toward the area, rather then letting cold air in which is the common conception.
P.S. I was considering routing from the foglight. I take it you've had no issues with water. This was a concern of a local tuner although I'm not convinced it'd be a problem.
J
P.S. I was considering routing from the foglight. I take it you've had no issues with water. This was a concern of a local tuner although I'm not convinced it'd be a problem.
J
I don't understand what harm water will do if it does get in (apart from drawing in dirt if it's road water I suppose). It'll hit the airfilter and sit there for a few seconds until the high flow of air across it evaporates it. And even if it did get further what would it do? Cool my charge?
AFAIK the snorkle is there to prevent BIG amounts of water (e.g. when you're fording a river) entering.
At the moment I've only got one foglight cover, but I was considering getting the mesh ones of ebay that are designed to let light through - hopefully they'd also let air through.
#14
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Getting water over electrics and MAF doesnt sound like a good idea! I remove mine in summer and replace them when the weather gets bad. I left them off a while during some bad weather - the engine got filthy.
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Don't be a girl! Who said water and electrics don't mix?
Seriously, I would advise bagging the MAF. And if you've got an alarm siren down there you don't want it exposed to a) water and b) thieving pikies,
Seriously, I would advise bagging the MAF. And if you've got an alarm siren down there you don't want it exposed to a) water and b) thieving pikies,
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