Cone v Airbox

[Jon441cc]

Here is my filter location.

[Ross]

Now you just need to mod the oil cooler duct, so that it points to that low-flying filter instead!

[Graham]

The only danger i can see of having an air filter this low is driving into a puddle and sucking in water, would certainly put a crimp on another wise a damn fine day. I prefer the SPQ bonnet vents nice and discreet with an air filter box underneath the bonnett then you would just have to plumb in some sort of water trap to alow rain water to drain out.

[Fat Audi 80]

Now you just need to mod the oil cooler duct, so that it points to that low-flying filter instead!

Erm, wouldn't that destroy the air flow to the oil cooler??

[Ski]

The only danger i can see of having an air filter this low is driving into a puddle and sucking in water, would certainly put a crimp on another wise a damn fine day.

Hopefully undertray would stop it?

[Graham]

Hopefully undertray would stop it?

The undertray will only stop puddles 6" deep from entering, go into a deeper puddle and the water will come through the front slots where the intercooler and oil cooler is, personally in the UK i have been through a 12" flood to get to where i am going, even Fords i have been through (Not the crappy rusty types on 4 wheels-the river across the road types) have been nearly a foot deep, as the standard intake is behind the light that is about 16-18" i have been carefull. My mate's brother borrowed his dads brand new Primera SVE, and thought coz a truck made it through a 600mm flood so could he and promptly wrote off his dads car going in at about 5k revs in 1st, destroying the engine and then opening the doors and destroying the full electrical leather interior.

[Keeper of The Kitten]

I don't think there is much to gain from having a lower intake anyway - the supposed advantage gained because "heat rises" would be totally negated on a hot day (when it matters) as the super-heated tarmac warms the air immediately above it!!! Most of the time, the heat issue is only a problem when in traffic - and that hot road would be even worse at low speeds.

The forward position of the intake is more important I think, and adequate shielding from the exhaust.

Better to have the intake higher up IMHO.

__MDC__

[S2 PTH]

Yes, but I think you guys are neglecting the fact that he is getting the filter away from the VERY hot manifold and turbo and nearer the possibly mildly warm (in contrast) road! I'd say that the system from jon441cc is the best yet in this thread! The only better one would be removing the drivers side headlamp and having a big F-off filter sat in its place!

[Sweeper]

I would suggest to make it like old w124 Mersedes diesel cars had it . In the passenger front wing. It looks even better than in S1 , it doesn't cross exhaust pipes.

[Keeper of The Kitten]

Yes, but I think you guys are neglecting the fact that he is getting the filter away from the VERY hot manifold and turbo and nearer the possibly mildly warm (in contrast) road! I'd say that the system from jon441cc is the best yet in this thread! The only better one would be removing the drivers side headlamp and having a big F-off filter sat in its place!

If at all possible I would rather not fit my filter down there, though I can see a potential airflow benefit if the MAF is situated immediately after the filter and the air path is quite direct into the turbo.

My comment about forward positioning is intended to address the heat issue, getting away from the hot manifold is something I agree with you wholeheartedly about. I maintain that the heat issue is at it's worst when the car is not moving, as heat soak starts to take effect, so the height is not as much of an issue in the enclosed engine bay (remember the exhaust goes under the car too) as the fore/aft position (as the exhaust goes to the rear, a forward filter position is the better solution).

Any cool air feed is advantageous, but lower is not always better (if it was, F1 cars wouldn't have the airbox feeding through the roll hoop). There are numerous reasons for selecting certain air intake positions - I think most owners would try to retain a "stock" appearance to the bonnet line and would prefer not to resort to scoops to achieve the desired effect. So, we try to keep within the confines of the existing shape. The shape of the body and the position of the engine and other components defines the envelope we have available to us.

Sweeper's suggestion is entirely valid, and yes I also think replacing the headlight with an intake would be good - if we can find headlights that fit the legal requirement and offer an increased opening (and provide sufficient lighting for proper nigh time use).

When I get Kitty (sort of) together again I will see what kind of path exists from the grill area to any propsed filter position when the aux rad is gone. If a moulded duct can get through the gap between the headlight, the boosted air pipe, and the engine itself, that's what I will be trying. The height is identical to the headlight but the path is more convoluted - however there is a large intake area available through the grill, and it could potentially be a very tidy solution.

Maybe.

__MDC__

[niall1]

I know it's not an S2 but here's what I did on my ur :mischeif: :

[S2 PTH]

Although its a clio and on the wrong side, this is what I did with all the free space I had under the bonnet!!!

[Henkjan]

I would suggest to make it like old w124 Mersedes diesel cars had it . In the passenger front wing. It looks even better than in S1 , it doesn't cross exhaust pipes.

now that's a good idea.... not only to keep out water, also a lot less dust will get sucked in (which is for normal driving conditions imho the major drawback of positioning the filter low and in the front)

[s2driveruk]

having eventually pulled the 3b box out to change the filter (to only find i'd been given an aby filter element ) i really need to change to a better airbox the 3b version sucks

Anyone got an RS2 or ABY one kicking about?

Cheers
David

[Al Wyn]

having eventually pulled the 3b box out to change the filter (to only find i'd been given an aby filter element ) i really need to change to a better airbox the 3b version sucks

Anyone got an RS2 or ABY one kicking about?

Cheers
David

you called