whats max bhp an aby airbox can take?

[andyg plym]

as it says.......any ideas?

[JP]

At 440'ish I had an issue where the turbo was trying to suck in more air than the airbox could supply causing oil seal issues on the turbo. Still not sure if it was the turbo or the airbox/MAF combo though.

[andyg plym]

so 370ish should be ok??

[quattrostyle]

was that with a modded ABY airbox like the RS2 one?

[andyg plym]

just want to chuck on a stock airbox for the time being. will it be ok? Got the usual cone related heat issues at present

[newsh]

As long as you have a silicon Maf hose you should be fine, the stock Maf hose can get sucked flat, particularly if it is a bit old and soft.

Anyway, I ran my RS2 setup on an ABY airbox for quite a while till I got the RS2 one. Te RS2 airbox is more than just a bigger hole in the front, the filter is at a different height so less obstructed by the box itself and more free flowing. (Some comparo pics on my project thread (somewhere)

[andyg plym]

newsh, currently on all silicone hoses, except the maf one

it has a long cylindrical cone on it at the mo,with 2x90 degree elbows to the maf

[newsh]

Have you got a free flow panel filter for the airbox? That will help.

[andyg plym]

havent got anything lined up as of yet. was ramblings of me getting my old bmc carbon race can back, that thing never suffered from heatsink. just not sure if it will be suitable.
i like the sound of cones,sport boxes etc but nothing imo compares to that that feeling of going back to stock and realising how well and un-jerkey it can drive

[newsh]

I use a BMC panel in the airbox Here if the link works

[Rusty]

You can modify the stock airbox like me or Dest have done, the addition of a decent cold air feed helps too. I will be looking to try and get a cone to work well later in the year, got a few simple heat shield ideas. BMC should do well but is the same price as an RS2 item so no contest there IMO.

[andyg plym]

You can modify the stock airbox like me or Dest have done, the addition of a decent cold air feed helps too. I will be looking to try and get a cone to work well later in the year, got a few simple heat shield ideas. BMC should do well but is the same price as an RS2 item so no contest there IMO.

given the choice id opt for an rs2 unit however i meant buying back my old one which should be quite cheap.
my car came with a demon tweaks cold air feed (dont forget i own the original bacofoil express) that i had to remove.

[Rocco]

the OEM RS2 airbox can work perfectly with 400bhp??

[Bram]

the OEM RS2 airbox can work perfectly with 400bhp??

I think it can yes. I had issues with my modded RS2 box around 450-475HP before it started to surge due to the small filter panel (K&N). I guess an RS2 box with a sport filter panel should be able to support around 400 HP air flow

[Rocco]

I think it can yes. I had issues with my modded RS2 box around 450-475HP before it started to surge due to the small filter panel (K&N). I guess an RS2 box with a sport filter panel should be able to support around 400 HP air flow

thanks Bram.

and wich are the best "airboxes" to use in our engines for more than 450hp?? or the only way to go it is the cone airfilters with a good heat shield?