Custom air intake system for the mongrel?

[devonutopia]

I have got thinking about air intakes on my Fabia....

At the moment I have a bare pd160 intake pointing toward the airflow coming in, which I believe to be OK as there's enough airflow around/past the intercooler pipe, and it seems breathing isn't an issue (that I know of....)

I was wondering whether it might be a good idea to do away with my airbox completely, and mod a decent bit of pipe to go all the way from my MAF, and down into the front left wing, and for a cone filter to sit right behind the panel next to the foglight. This panel would be "mongrelled" of course so the cone sat in direct airflow.

Any thoughts? Any plans like this have been rejected before due to my battery being in the way - Now not an issue.

[mattbeef]

your going to do it anyway though if it even remotely gives you any gain

Plus there no sure way of finding out apart form doing it

[devonutopia]

Originally Posted by mattbeef

your going to do it anyway though if it even remotely gives you any gain

Plus there no sure way of finding out apart form doing it

Well, I just wondered what people from the 1.8T world thought as they all generally have intakes down in the wings, compared to the normal TDI grille intake attaching.

[Glider]

Maybe would have been a good idea before going to Allards

I'd just put a far bigger pipe into the airbox.

[devonutopia]

Originally Posted by Glider

Maybe would have been a good idea

Forget the rest of that - Would it be good compared to the cupra intake system, full stop - no questions asked?

[53FabiaVRS]

That would sit exactly where my K&N gen II sat in my Focus RS. That position does work well (it did on my FRS at least! ) I would prob source a fabricated alloy pipe to link the air filter to the maf as it needs to keep the air flow smooth as poss.

[devonutopia]

Originally Posted by 53FabiaVRS

That would sit exactly where my K&N gen II sat in my Focus RS. That position does work well (it did on my FRS at least! ) I would prob source a fabricated alloy pipe to link the air filter to the maf as it needs to keep the air flow smooth as poss.

Got me thinking carbonio there....

[mattbeef]

would an Octy CAI pyhsically fit a furby?
If so try a fleabay kit

[Snoopie]

No matter how big a pipe connect to the airbox, from there one, the airbox is the restriction, so freeing that up is a good way.
Jason, the CAI your looking into, is the best way to go.

[Joff]

Originally Posted by mattbeef

would an Octy CAI pyhsically fit a furby?
If so try a fleabay kit

Would need two bends IMO, one to straighten the intake from the angle of the MAF to the angle of the wing and then another bend to drop the filter behind the front bumper.

Remember with CAI's you want a filter that can stand up to the elements - no good putting a cotton-gauze on there without some kind of prefilter and expect to clean them both often.

[mluton]

What about a bonnet intake instead.

[Snoopie]

Originally Posted by mluton

What about a bonnet intake instead.

Risky, if you want to have the filter anywhere near.

[ChrisRs]

Would'nt the cone filter get wet from being nearer the road surface??

[Snoopie]

I've got one, and most of the CAI's sit infront of the light, and down. You would think they would get wet. But they don't. They sit as high as the door level in most cases.... and again, slightly higher in other.....

If your car was submerged in water that is.. to the door seal's high, I would be more worried about other components.

Droplets and splashes of water, don't make any effect.

[TeflonTom]

Originally Posted by Joff

Would need two bends IMO, one to straighten the intake from the angle of the MAF to the angle of the wing and then another bend to drop the filter behind the front bumper.

remember, you loose 5% of the flow capacity of your tube for evey 90 degree bend it has

[Basil]

It'd be an idea to actually calculate how many cubic feet per min or litres per min you would need at full WOT. Then try to figure out the optimal cross-section of tubing.
You've already figured the likely coolest air intake position.
How about taking a grinder to the slam panel and making a much larger straight pipe with a gentle curve, round airfilter inside, no airbox. May get a bit of a ram-air effect as well as the free-flow characteristics of a round filter (K&N?). Insulate the air tubing with ? a survival blanket ? old mylar car sunshade to keep the air as cool as possible on its way to the BF turbo...

my 2p worth
HTH
Bas

[ItsOnlyMe_vRS]

i was under the impression that any mod to the intake system other than a panel filter and PD160 intake pipe caused the MAF to fail.

[Joff]

Originally Posted by TeflonTom

remember, you loose 5% of the flow capacity of your tube for evey 90 degree bend it has

There's no other way though, unless taking a Dremel to the bonnet or side of the wing is an option. Plus the loss would be negligible compared to the increase in airflow over the standard intake system.

[Joff]

Originally Posted by Basil

It'd be an idea to actually calculate how many cubic feet per min or litres per min you would need at full WOT. Then try to figure out the optimal cross-section of tubing.
You've already figured the likely coolest air intake position.
How about taking a grinder to the slam panel and making a much larger straight pipe with a gentle curve, round airfilter inside, no airbox. May get a bit of a ram-air effect as well as the free-flow characteristics of a round filter (K&N?). Insulate the air tubing with ? a survival blanket ? old mylar car sunshade to keep the air as cool as possible on its way to the BF turbo...

my 2p worth
HTH
Bas

I'd do something similar:

Free flowing cone filter to replace the airbox, then a heat shield all around the cone which becomes a sealed chamber once the bonnet is closed.

Air is fed from the existing location in the slam panel through a port in the side of the heat shield.

Slam panel and front grille are modified so that the air intake can be extended out of the front of the car beyond the grille.

[vindaloo]

Originally Posted by ItsOnlyMe_vRS

i was under the impression that any mod to the intake system other than a panel filter and PD160 intake pipe caused the MAF to fail.

Depends..... Vibration and grit/contamination are the things that might kill the MAF. You have to make sure that it's properly supported and not flapping around.

J.