feeding more air into a stock r33 box

[_turtle_]

hey guys, does anyone know how to get more air into the factory r33 air box?

i've just taken out my k&n pod filter and put the stock box back in and i want to feed more air into the stock box.

thanks.

[JimX]

Have a look in this thread, especially at Jay51's PVC pipe mod down near the bottom. Combine that with an airbox/partition and even the factory scoop and you'll be getting plenty of air in there.

[_turtle_]

thanks jimx. but i was actually looking at how to feed more air into the standard air box.

i looked at jay51's pics and they were hardcore i really don't think i can do anything like that.

[51jay]

Unless you are doing extensive performance mods , the standard system actually flows enough air

[Revhead]

I found that my car ran significantly harder with the pod filter installed over the stocker airbox, dispite sucking in underbonnet air. The only things I've done to mine are a 3" turbo-back exhaust, pod filter and 12psi.

Swapping back to the standard airbox and resetting the ECU made the car feel flat and lifeless, putting the pod back on and resetting the ECU again brought it back to how it was.

[surreal]

I have a k&n panel filter in my standard air box - went to do the piping thing and went bugger that...

So now the front of my box is open and it runs well (dont have any figures though)

Sounds like a butcher job but if it works....

[51jay]

Hmmm! If you just open up the front of the box you'll be getting air in from around the headlights.... quite a lot , but won't it be bypassing your filter??

[Revhead]

Perhaps he's planning a 'Slip-style' air filter relocation??

[_turtle_]

hey surreal, when u say "the front of my box is open" do u mean that u just took the lid off the box? or u actually made a hole at the front of the box?

[Zahos]

Hey _turtle_,

I went to make a start on the airbox like I said, when I realised that there was a MUCH easier way!

I thought about what surreal said about taking the front off which gave me an Idea! I cut the front of my airbox off (like surreal did I assume), and I blocked off any engine heat from getting to the hole with perspex.

Next I will put some foam/sponge on top of the airbox, and the perspex mould I made to completely block it off, and there you go. More cold air in 3 easy steps!

I have attached an even crappier pic than last times...

[Zahos]

Actually there is no perspex divider at the back of the box, just the front!

I used cardboard to get the shape right around the intercooler pipes, and the radiator support.

Then I cut a larger piece on perspex than was needed, so I could use the heat gun to mould it into a shape that would fit nicely into place.

It actually looks a bit retarded at the moment, but once I put the finishing touches it will look much neater.

[Zahos]

OK, I have just whipped up another one of my sh1tty pics that hopefully shows it in more detail

[_turtle_]

damn, that 2nd picture is heaps better zahos! even had colour! now i know whats happening. now i know wotcha mean about the front of the box, just the lid part, i thought u meant the whole front. so have u actually done all this yet? notice any difference?

[Zahos]

I've cut the front out, and I've made the barrier and put it in place. It is now almost as noisy as a pod filter!

As for performance I did notice that the car feels less restrictive at high revs, my boost was upped by .2 bar, and boost hardly spikes now!

I had to wind the boost back down, b/c at .9 bar it was running like sh1t b/w 5 - 6K rpm. Once I make the barrier more secure, and I put the foam on top to block warm engine air coming through, I'll be finished and I'll try to take a pic with someones digital camera 4 u to see!

Where abouts in melbourne r u?

[_turtle_]

cool, i think i'm gonna give this a try. its free! so its all good. i don't wanna bugger up the box when i try cut it though.. so i mite wait for some photo's.

im in doncaster area, near westfield.

[dineth]

hey zahos could u post those pics again plz?

[dineth]

Hey guys, i wanan cut a hole on my stock box and have a pipe so more cold air gets into it, now i know there is a fair few threads on this sorta topic, but none of the links for pics work. so i was wondering if anyone has any links or pics of some sort of piping on a stock R33 air box? cheers.

[Zahos]

I have long deleted those pics off my hard drive sorry....

if I get time, I will draw them again....

it's a prick of a mod to do on an R33 airbox, but can be done very easily on an R32.

[Sydneykid]

What I am doing on the Stagea (same as R33) is building a scoop into the alloy radiator guide I am fabricating. The concept is that, as air comes in through the grill, it gets scooped up and pointed at the standard airbox inlet. Too hard to describe much more than that in words. When I have it finished, I will post some pictures on the Stagea forum.

[AFRO]

I can't see any pics of the mods ?!!

also,, umm, u know how under the airbox (inside) lid is a black foam thingy,,

is it a good idea to remove this?? is it there to reduce turbulence or absorb moisture?

does anyone what i'm talking about,,?? if not i can post up some pics,, later on,,,

or if possible can someone email me the pics of the airbox mods

[email protected]

thanks

Afro