Seen it mentioned alot but cant find somthing that tells me what it does, can any one help?

Essentially in stock form air comes in the front right vent to give the side mounted IC some air, but then it has nowhere to go. Doing the pikey arch vent mod enables this air to go out the arch and thereby you get better transit of air through / past the side mount.

Worth doing?

Any guides?

I believe so, I done it within the 1st week so I don really notice much difference. Whatever makes the insides cooler is a + in my books.

Sorry im doing to steal the thread a little.. What if one does the arch mod on the OTHER side (where the water bottle is), drill a hole on the bottom of the air box and pipe that to the other vent.. attempt of creating a low pressure area within the air box. :wonder:

Edit: Guides - well search will give the answers, but if you want the short and sweet answer it is: take off the arch (11 or 12 hex screws), cut a hole the size of the vent, Paint vent (optional), stick vent to arch. I used self tappers, cable ties and gutter silicon (because its black). reattach everything and your done.

Edited 15 May, 201016 yr by JLneonhug

The other side does not have a vented grille in the front bumper, so nothing gets through there anyway. :p

Guide?

Buy vent, remove arch liner, cut out hole, glue/self-tapper in vent, refit liner. It's not called a pikey arch mod for its aesthetics

Ahh my kinda mod cheers will let you know when ive completley gashed it up!

pics pics pics

Just found out that my furby is mapped...

Interested in doing this now... :yes:

The other side does not have a vented grille in the front bumper, so nothing gets through there anyway. :p

The air will be coming from the pd160 intake or similar, to the air box, out with piping to the arch. making a high flow low pressure area..? Dont know if that will be any use though, does TDI's need pressure in the air box? or simply lots of cold air... :S Sorry I dont explain it very well!

pics pics pics

Just found out that my furby is mapped...

Interested in doing this now... :yes:

http://briskoda.net/forums/topic/112216-done-the-pikey-arch-mod/

Edited 15 May, 201016 yr by JLneonhug

Any guides?

There was a guide on here somewhere before the new look site came into being. I think the best way of searching for it would be to search for 'pikey arch mod'

I did this a while ago to mine. I went for the B&Q air vent approach rather than a new archliner.

Basically you buy your vent cover from B&Q etc... then after taking off the front wheel you cut a section of the archliner out and then screw the new vent cover over the hole you created. I then painted the vent matt black so it didn't stand out and that's it.

pics pics pics

Just found out that my furby is mapped...

Interested in doing this now... :yes:

Here's a couple of pics i dug up of mine.... One with the wheel off after just fitting the vent and the other taken maybe 6-12 months later with the vent weathered in.

Cheers

Dave.

Edited 15 May, 201016 yr by WaveyDavey

Wavey, cheers for the pics, I actually like the look of that.

Did you/have you noticed any difference?

Doubt you would notice a real difference, but it will give you peace of mind knowing the intercooler will be doing a slightly better job at keeping turbocharged air cooler.

However, a front mount will give lots more, and a definite improvement in power.

the air box isnt pressured..it draws cold air from atmosphere when needed...ie when the engine is running...

pikey wheel arch mod will produce more psychological improvement than actual

the oem intercooler isnt in a sealed compartment so the air thats passed thru it will still escape ....

Edited 15 May, 201016 yr by warwick hunt

the air box isnt pressured..it draws cold air from atmosphere when needed...ie when the engine is running...

Ok please bare with me, I'm only talking theoretical stuff here..

If pressure of air coming in is greater than what the engine needs it would create pressure, this pressure will increase in heat as it will stay where its at for longer. My amazing paint drawing will help explain what I mean..

I assume this will create a low-er pressure within the air box, letting air flow more freely (escape) thus hopefully having higher flow of circulation of air and also lower air temperatures..? :S Or am I talking negligible values and I should shut up now? :|

Just done the arch mod nice and easy to do, but have one screw left over and for the life of me cant see where the hell its supposed to go!!

Just done the arch mod nice and easy to do, but have one screw left over and for the life of me cant see where the hell its supposed to go!!

if all the pre dilled holes are full it doesnt go anywhere..

There is always one T20 left over There will be one missing somewhere - From memory there are two around the lip of the arch, one by mudflap/drivers door area, two kind of behind the braking area, where the ARB pops out between, 3 that kind of attach to the front bumper, and probably a couple of others too "in the middle"

Ok please bare with me, I'm only talking theoretical stuff here..

If pressure of air coming in is greater than what the engine needs it would create pressure, this pressure will increase in heat as it will stay where its at for longer. My amazing paint drawing will help explain what I mean..

I assume this will create a low-er pressure within the air box, letting air flow more freely (escape) thus hopefully having higher flow of circulation of air and also lower air temperatures..? :S Or am I talking negligible values and I should shut up now? :|

the intake pipe has an open end so pressure cannot be greater than what the engine needs at the intake side as its the turbocharger that pressurises the air anyway and only allows certain psi pressure build up anyway.

nice diagram tho.. :p

Yeah - intake side barely builds up any actual pressure as it sucks in air.

Just done the arch mod nice and easy to do, but have one screw left over and for the life of me cant see where the hell its supposed to go!!

ahh you meant a torx wheel liner screw..soz

the intake pipe has an open end so pressure cannot be greater than what the engine needs at the intake side as its the turbocharger that pressurises the air anyway and only allows certain psi pressure build up anyway.

nice diagram tho.. :p

Thanks :p, all is clear now. Im attempting to find ways to not fork out £80 for that piece of plastic . I don't support things which have a fat premium on them just because its popular.

About the torx screws, make sure they're all in properly otherwise you may find it will eventually take residence in your tyre

Edited 15 May, 201016 yr by JLneonhug

They're all in part from the one sitting on my desk!!!