Hi all it's been pointed out to me that my air filter is currently in a bad place as its right behind the radiator so getting all the hot air. Question is where would I be best to put it.

So far I've come up with 2 ideas
1. 90' bend to the cone which will be just in front of the belts and then cut a vent out in the front nose to allow air directly to the cone

2. Remove black pipe and run a new hose to a large (carb style) filter to the side of the engine and cut a vent in the side of the bonnet. This would look similar to those with tb's and filter but I would make a new plate on the back of the filter to allow one 3' hose.


I am also going to cut out a few vents to let the hot air escape so depending which filter setup I go for depends where I cut the vents
[IMG]http://i50.photobucket.com/albums/f340/s18rra/th_vent.jpg[/I MG]
[IMG]http://i50.photobucket.com/albums/f340/s18rra/th_vent1.jpg[ /IMG]

[Edited on 1/2/13 by Sierra]

What about a NACA duct installed to top of nosecone and then connect your flexible inlet pipe to it

is there no room to just place the duct over the radiator?, or maybe create some sort of letterbox collector over the rad that ducts and opens out to the dia of the air feed pipe.

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Originally posted by big-vee-twin
What about a NACA duct installed to top of nosecone and then connect your flexible inlet pipe to it

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I think i would be either a hole in the nose cone and NACA or hole in a side panel

Dont worry about ram air effect, it does not work above the top speed of our cars, apparently.

Is it not bad to run without an actual filter?
I wasn't really doing the back vents for ram effect just looks cool and might possibly let out the hot air in the engine bay when really hot.

You use an inline air filter in the pipe

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Originally posted by 40inches

quote:

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Originally posted by big-vee-twin
What about a NACA duct installed to top of nosecone and then connect your flexible inlet pipe to it

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I did something similar, a few on here have used NACA ducts, I think Jon Ison did, for one.

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quote:

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Originally posted by 40inches

quote:

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Originally posted by big-vee-twin
What about a NACA duct installed to top of nosecone and then connect your flexible inlet pipe to it

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I did something similar, a few on here have used NACA ducts, I think Jon Ison did, for one.

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Hi guys bringing this old post back up as I never got round to doing anything but now I'm ready so after a bit more advice.
The 2 best options I have come up with are;
1) filter at the end of the black inlet pipe with naca duct in nose cone directed straight to the filter (the red flex hose will be binned)
2) remove red flex hose and black metal inlet tube and have a filter on the side of the bonnet with a short hose to tb.

Now will a shorter inlet make any difference as with the black inlet in the distance from filter to tb is around 400mm and inlet diameter is 65mm.
Filter on the side will eliminate the long inlet and leave me with a short 100mm hose to tb but filter is on the side and not directly in air flow.

Any ideas anyone

When I bought the car:

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Really suffered with heat soak hugely affecting performance, so:

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Still wasn't great, so I used an old Clio airbox, wrapped it in heat-wrap stuff, sealed it on all sides and then cut a hole so the air, and only the air, from the duct goes into it:

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It did work perfectly - and made a very noticeable difference to performance.

Thanks for that info. The only issue with mine would be the long inlet as the tb is at the back of the engine after the long inlet tube whereas yours seems to be at the front

Not too sure what you mean? If you retain the orange pipe, but at a shorter length and use a method similar to what I did then you've reduced your inlet tract, not lengthen it?

Sorry I didn't explain clearly. The orange hose is connected to a metal black tube that is around 400mm long then enters the tb at the back end of the engine whereas yours has the short black hose then straight to tb.

The worry I have is if my total inlet hose is too long and if it will benefit being shorter and filter being placed on the side coming out of the bonnet. This will eliminate the orange and black hoses and just have a short silicone hose to air filter.
Some say the length of the inlet hose doesn't matter?

Hi all me again. I'm struggling to fit a filter between the inlet pipe and naca duct due to bonnet clearance and came up with a solution but not sure if it'll be ok.
I'm thinking of using a filter sock like you use on trumpets and putting it over the inlet hose then a cold air feed hose over it to naca duct. This will mean that inside the hose will be the flat section of the sock to catch and objects and filter the air.
Question is will this be enough filtration?