Air throughflow vents - How to improve

8 years 3 months ago #64625 by David Aiketgate
When we were driving the F abroad, it quickly became clear that without using the fan there is not a lot of flow through the vents. Even at speed, the natural flow is small.
Looking at the external air box it's easy to see why.
The only access for air is hidden away in here, with a metal cap over it (to stop rain entering the heater.)





An easy way, I thought, to increase airflow would be to open another access hole and direct air from the front of the car into it via a flexible pipe.

The box is made of thin plastic and using one of these,



it is easy to open a hole.




David
:shrug:
The following user(s) said Thank You: Leigh Ping, bensewell

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8 years 3 months ago #64627 by Softly~Softly
Did you clean the bay at the same time :whistle:


Some people have removed the box altogether to get more room in the front :dry:

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8 years 3 months ago #64628 by bensewell
Great stuff :)

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8 years 3 months ago #64630 by David Aiketgate
Using some hose I happened to have laying around :lol: I fed the hose end into the hole and led the rest to pick up some nice fresh air.




Replacing the black cover covers this all up and nothing can be seen.
A quick test drive confirmed that the air flow was increased. initially I have just fed the hose into the wheel arch area, but I may reroute it to get a more direct flow.

David
:shrug:
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The following user(s) said Thank You: mogatrons, Softly~Softly, Leigh Ping, bensewell, Looney toons

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8 years 3 months ago #64632 by David Aiketgate

bongodave wrote: Excuse my daftness here, but isn't this the vent for the internal heater?

Yes but it is also the source for all vented air in the car. Hot or cold.

David
:shrug:

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8 years 3 months ago #64635 by Softly~Softly
Thanks David I always wondered what was behind it :beer:

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8 years 3 months ago #64637 by David Aiketgate
Side vents, centre vents, demister vents, floor vents.

David
:shrug:

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8 years 3 months ago - 8 years 3 months ago #64647 by Leigh Ping
Vents Dave, vents. Outlets for the air inside the car, centre, side, windscreen and footwell areas. Not intakes. :)

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8 years 3 months ago - 8 years 3 months ago #64656 by Leigh Ping
Just more cool air / breeze into the cabin without so much need to use the fan power settings. Particularly useful when cruising along in warmer climes like Italy.. and the very occasional day or two in the UK.

David has solved that problem with this cleverly thought out air mod. :broon:

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8 years 2 months ago #65888 by David Aiketgate
Update

This has been a great success, improving the flow of air into the cabin. Overcoming that stuffy feeling if you're forced to have the roof up in inclement weather conditions.
I have now re-routed the hose so that the opening is facing forward to receive maximum air flow. It is actually positioned where the anti-roll bar meets the subframe.
This has increased the flow substantially through the vents/heater system. :broon:
If necessary (if it's cold and the heater hasn't warmed up yet, for example) all the flow can be diverted to the demister vents.

Unfortunately, I need to go back to Italy to really test the new set up.:yesnod: Financial donations would be welcomed.:rofl:

David
:shrug:
The following user(s) said Thank You: Softly~Softly

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8 years 2 months ago #65892 by PQD44
Here's a penny worth of thoughts donation to your Italy trip....

Nice mod I too like plenty of fresh air when forced to drive with the hood up. Thanks for the update David :broon:


Between you and Leigh shares in vacuum cleaner hose manufacturers are on the increase, well done guys.
The following user(s) said Thank You: Leigh Ping

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8 years 2 months ago #65896 by David Aiketgate
You spotted that hose similarity, huh!:lol:
I had to do something with all the hose from my failed airscarf.

David
:shrug:
The following user(s) said Thank You: Leigh Ping, R2 LJF

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