Removing the air box lid

[Mezza]

Performance would be decreased I would think?
I wouldn't do this all the time, just interested to see how much louder it is.
Is it safe to do?

[dlai5552]

It doesn't do much. Maybe a +- 0.05 kw difference lol.
It is safe, as long as you have the filter to filter the stuff flying through.

tbh, I don't think it will make much of a difference in terms of noise. Maybe try gutting the airbox with a K&N filter replacement for increase noise. And for a bit of extra performance an eBay scoop :)

[ALPS]

Performance would be decreased I would think?
I wouldn't do this all the time, just interested to see how much louder it is.
Is it safe to do?

I've done it! been driving it like that for 8 months. Makes it like 3 times louder. sounds beautiful. really hear the vtec. not much difference in performance. only downside really i found is that the filter gets dirty alot quicker and is more prone to getting wet. But! pff. i love itt!!

[ncmx5]

prone to heatsoak. wait till summer comes and you'll feel the engine bog.

[Mezza]

Just went out for a drive with it off. It has a nicer, throatier sound. Very nice. Engine got much hotter though.
However I've just ordered my K&N FIPK, can't wait until that arrives.

[jowjeh]

the FIPK is a fu***n beast. You won't regret it.

[Simmoyo]

I just went for a drive without the lid on and nearly shat myself when I hit Vtec.


If I drill 2 big holes in my lid, will I get the same result? I'm guessing my air scoop will stop me from loosing the 0.05kw while moving if I had no lid. Engine may not be happy when stopped for a long time though


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[h3nno]

I just went for a drive without the lid on and nearly shat myself when I hit Vtec.


If I drill 2 big holes in my lid, will I get the same result? I'm guessing my air scoop will stop me from loosing the 0.05kw while moving if I had no lid. Engine may not be happy when stopped for a long time though


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If you drill holes in the top of your induction box / remove the lid it will almost render your snorkel useless, because the filter will suck in all the hot air from the engine bay. Where as when you have the lid on it is forced to suck the cooler air from the snorkel.

[Simmoyo]

I agree... but when the car is moving wont cold air be pushed into the air filter through the snorkel?

[Engin09]

I've done it, heaps louder, performance no diff.. bit better if you ask me (prolly psychological from the noise hehe)

[Simmoyo]

I was thinking of making a hole on the bottom, and another on the left side of the box so water can drain and hopefully not as hot air will get in.

How big are your holes Engine09?

[Bulbasaur]

most air even inside the engine bay is cool once the car is moving... thats what the americans say before they get into some sort of arguement in the forums

[euromandeluxe]

That's why heat-soak is bog off the line - when the car is stationary. Once moving performance should be pretty similar.

[Simmoyo]

yeah its a hot day today and the car didn't feel that good off the line. Is there any way to get a little more sound from the filter without having the heat-soak problem? - besides sticking the filter all the way behind the bumper

[jowjeh]

yeah its a hot day today and the car didn't feel that good off the line. Is there any way to get a little more sound from the filter without having the heat-soak problem? - besides sticking the filter all the way behind the bumper

Read the below link bro.

http://forums.s2kca.com/showthread.php?t=8803

If you just want the sound purely, just block the resonator in the airbox. Gives it a nice grunt sound. Can also drop a K&N filter in (there's ones for s2000's), that also helps a little. Have to buy one though of course.

[euromandeluxe]

I think I've got a K&N filter (S2000 specific) sitting around if anyone's interested. Near new.

[Simmoyo]

I have a K&N, they make a big difference! Yours should sell easily. I never knew there was a resonator in there, I'm blocking that for sure! cheers

[s2kay]

I think I've got a K&N filter (S2000 specific) sitting around if anyone's interested. Near new.

how much you looking at for the k&n?? pm.

[h3nno]

how much you looking at for the k&n?? pm.

I got mine of ebay, from Harold... can't remember seller but I can find it if you want, it was around $110 + shipping he was located in Melbourne.

[h3nno]

I was thinking of making a hole on the bottom, and another on the left side of the box so water can drain and hopefully not as hot air will get in.

How big are your holes Engine09?

I was thinking the same at one stage, but putting a big of a scope on the bottom of the air box. But after though I came to the concluding it would **** up the pulse.

[RIHIA]

Seriously just get a cai from the us... Mine came in a little over a week and there is no chance of hot air touching that thing... Throttle response hasn't suffered and performance has increased. You can't go wrong !

[jowjeh]

If you guys want really good sound and a bit of power/response, get the K&N FIPK from the US. for $250 you just can't go wrong, it's fantastic.

Also K&N drop ins are about $80 last I checked.. I have one sitting around too, but it's in my stock airbox which is being retained just in case I ever need it lol

[Simmoyo]

With my CAI and K&N filter (picture on first page), I am going to make a mechanism, probably with solenoids, that can open and close a big hole in the airbox with the flick of a switch. That way, if I want the sound and its not a very hot day, I flick the switch (probably under the steering wheel) and bang, its as if I took the lid off. Anyone tried this before?

[euromandeluxe]

Would probably work but seems like a lot of effort to go through for a whole lot of show without the go

[Simmoyo]

Would probably work but seems like a lot of effort to go through for a whole lot of show without the go

It'll probably take 15 minutes. Cut 1 long and 2 short edges of a rectangle into the top of the box, bend the last edge until it can go up and down fairly easily, then stick an old door lock solenoid in the box that will push the flap up when powered. Boom