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Ok so after much thought and reading through various threads i am going to try and build my own CAI.

Ive spoken to a few people and would just like some help gathering some materials.

I have autobarn a call and asked for a cone filter with a full cowl covering it and he had no idea what i was on about.
If anyone could reccomend a place in melbourne i could get it from that would be great.

Assuming the inlet is 100mm, i will need a 100mm to 65/75mm reducer correct? Which one would be better? And then a straight pvc tube of that width. I think i will find something to wrap around it for insulation.

Next i need an adaptor, this is the tricky part as i im not sure what to look for. Thanks for all your help in advance.

matty's article has some ideas about where to get stuff, under the "gathering the parts" subtitle

http://autospeed.com/cms/A_110680/artic ... larArticle

his is for an na6 so the airflow metre is different to your car, but it gives you some ideas anyway. looks like he just went to bunnings and browsed around to find what he needed. maybe you should visit your local bunnings, supercheap auto , repco, and have a look to see if you can make something work

Yeah i was going off that. Except i called a few places and couldnt chase up the filter. And as for the bracket he made one himself. So those are the two points i was in need of help with.

Autobarn should be able to order it in. Just print off the picture & part no. from Simota's site.

http://www.simota.com.au/default.htm

crzymx wrote: And as for the bracket he made one himself..

you will need to do the same . if you have a drill, and can take some measurements, it should not be a difficult job. you can't do a proper DIY by just relying on off the shelf components.

I've seen the Simotas (or something very similar) at East Coast Auto Spares in ?Clayton?

You can get some galvanised L brackets from Bunnings - I think 100 x 150mm is about the right size, you'll need to drill some additional holes and do some slight bending but as long as you're intelligent it's fairly straightforward.

The 100-65 reducer was what I could get - I would have gotten a 100-75 if I could find one... I haven't seen the same sort in Bunnings recently though (but i haven't been looking either...)

Someone i spoke to told me i could actually buy the bracket from autobarn ?

it'd most likely be a generic one (or possibly one made for a much modifier common car such as most turbo Nissans) where you might need to bend it to suit & drill holes into etc.

Well looking on the website, there is an mx5 adapter available for a 77mm neck filter. However it does not specify the gen of the mx5

Its really not hard, the hard part is getting it to look pro. If i ever were to sell i dont want some dodgy looking home job that does the trick to shine through the cars condition if you know what i mean, so hopefully i can chase down one thats being sold.

re: carbon fibre, you would need to have it moulded to the design you want. Would be tough to find a few pieces to create the airbox.

also when it comes to selling, imho it is better to return it to its original condition. That way you have a larger market to tap in to. You would also possibly receive a higher price for it.

Well thats the thing, if i can find a good quality one piece CAI it may increase market value to some extent. However in the case that i would have to return it to stock it would be easier.

crzymx wrote:Well thats the thing, if i can find a good quality one piece CAI it may increase market value to some extent. However in the case that i would have to return it to stock it would be easier.

I think you will find that many CAIs are unlawful, especially if you have to drill a hole in the firewall to install it. It is unlikely this will be a real issue except when you go to sell the car. The Loch Stewart/Matty/Mainia design generally has the hole where the windscreen washer water bottle is. If you are selling the car, remove the CAI, put the water bottle back in its original position and Bob's your mother's brother.

J

Yeah thats the first thing that came to mind, hiding the gaping hole with the washer bottle. Its sneaky but effective.

But it seems like no ones selling :@

A pod filter is illegal, I'm not sure but I think that if your air intake is outside the engine bay it is alright. the reason a pod filter is illegal is because if your car should backfire through the filter it could cause an fire in the engine bay. I think the modern filter boxes probably have some sort of baffle system built into them to stop any such occurence. I think this baffle system could be the restriction that makes a pod filter more effective. just a thought.