1994 1.8 litre NA and CAI

[philz]

budget?

[93_Clubman]

LMW, not sure if you've seen the following, but if not it might assist:
http://www.miata.net/products/intex/

[Jeo]

Have a look at this if you're interested in the DIY approach

[grump]

mx5 mania cold air intake, I have one arriving next week. For $250 you can't go wrong. In QLD it is against the law to have a pod filter that is open to the engine bay, because of the unheard of chance of backfire and the resulting inferno. It is also against the law to have a gear stick knob without the H pattern on it . ahh its a wonderfull world we live in.

[Spranga]

If you do decide to cut the firewall check my youtube vids. My car was stock in almost everyway (including the exhaust) except for the mania CAI. It is very loud under large throttle openings.

PS they also have a no drill kit.

[Steampunk]

The biggest restriction lies with the stock airbox and inlet tubing. In a fairly recent Hot4's they tested a stock NB in simple stages:
1) no changes to intake
2) remove OEM panel filter only
3) stick a foam "sock" filter onto inlet leaving the top of the airbox open

Removing the OEM filter only, made no difference on the Dyno, whilst removing the top of the airbox and installing a sock-type foam filter made significant improvement in all rev-ranges, especially in the mid-range.

Here is an article from Autospeed as authored by Matty: http://www.autospeed.com/A_110680/cms/article.html

[Russellb]

With my 94 clubman I made 72 KW ATRW stock
with the filter removed made 84KW ATRW
so on the NA8 the biggest prob is the filter
replace with a pod and heat sheild/cold air divider (like )

[93_Clubman]

Anyone heard about this one:
http://www.knfilters.com/search/product ... od=57-0348

It looks just what I am looking for and the guys at the local Autopro are going to see if they can get it in.

saw this when I was looking around - from memory quite expensive for what's contained in the kit, i.e. around $300, however the principle behind it seemed reasonable. If you can't get it locally, try Rocket Industries in Sydney <www.rocketindustries.com.au> they're some sort of K&N importer/distributor.

[Matty]

The biggest restriction lies with the stock airbox and inlet tubing. In a fairly recent Hot4's they tested a stock NB in simple stages:
1) no changes to intake
2) remove OEM panel filter only
3) stick a foam "sock" filter onto inlet leaving the top of the airbox open

Removing the OEM filter only, made no difference on the Dyno, whilst removing the top of the airbox and installing a sock-type foam filter made significant improvement in all rev-ranges, especially in the mid-range.

Isnt running without a filter a bad thing?

Also what exactly is this sock type filter?

Yup, no filter is pretty stupid. It's OK for a brief dyno test where you're confident nothing will be sucked in (there's still the mesh on the MAF to prevent large debris getting in).

But the point of the test was (presumably) to demonstrate that filters are rarely restrictive.

[TieNN89]

In QLD it is against the law to have a pod filter that is open to the engine bay, because of the unheard of chance of backfire and the resulting inferno.

i was told that is in NSW and in QLD it only need to be mounted solid