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Old 09-10-2004, 12:22   #1
RSgeoff
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Extra cooling on VII underpan............

I had a look under the car (EVO VII) and noticed that the bottom of the underpan has channels in-built to flow air to the front brakes - however it wasn't very efficient as most of the air would have already been projected downwards by the same pan, before it reached the channel.
See here....
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Old 09-10-2004, 12:23   #2
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other side
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Old 09-10-2004, 12:25   #3
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Anyway - i decided this could be vastly improved upon for very litte money (75p) with the use of some correctly cut & shaped plastic (electrical) cable coving.
Here is one side done, compared to the other..
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Old 09-10-2004, 12:26   #4
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and another
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Old 09-10-2004, 12:27   #5
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and..
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Old 09-10-2004, 12:28   #6
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The white line is where the original one came to
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Old 09-10-2004, 12:29   #7
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Back down on the ground
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Old 09-10-2004, 12:43   #8
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Better view
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Old 09-10-2004, 12:45   #9
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and finally - how to shape the plastic coving, as you can see above it's just attached with 3 self tappers indicated on the picture below
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Old 09-10-2004, 13:10   #10
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good work

i have the eXtreme cooling ducts fitted which are basicly touching the inside of the wheel and work pretty well.

Quote:
Originally posted by gsrgeoff
Better view
in this pic if you look at the piece of plastic coming down on the right?? it is blocking the air going to the wheel and brakes so I took a hacksaw to mine

Your idea is pretty good but it would be pretty useless on my car, due to my front splitter is sitting over that area.

Note, the 8 has the same channels underneath.
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Old 09-10-2004, 13:49   #11
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Quote:
Originally posted by Dark Evo
good work in this pic if you look at the piece of plastic coming down on the right?? it is blocking the air going to the wheel and brakes so I took a hacksaw to mine
Funny - I was thinking the same thing, but then thought that without it, too much air would be going straight past, forcing the curved air to be deflected away - what do you think - I presume you mean the item i have marked as A, rather than B ?

I will re-look at it before cutting it off !
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Old 09-10-2004, 18:25   #12
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yes A. In my case it's better with it removed, but i'm not too sure if it's worth doing for you car
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Old 09-10-2004, 19:22   #13
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This is similar to the air guides I've got fitted to mine. Although mine cost £70. In the fitting instructions you are told to cut about 3 inches (bit thats label A in your picture) off the under-tray.

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Old 10-10-2004, 09:31   #14
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Yeah - agreed - I will be chopping about 3" off it, as indicated below, which will also allow additional cooling.
To remove it altogether will do as I said above and force the curved air going to the brakes, away, so 3" will do.

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Old 12-10-2004, 13:06   #15
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Good idea Geoff Thanks for sharing.

One point though. All this ducting, air guides etc is surely fairly pointless unless you remove your disk backing plate?
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