pod filter in an nb. performance loss or gain?

[RG.net]

didn't I hear that short toilet plumbing bend increases the torque but savagely increases the fuel usage?

i have also heard this, but i havent really noticed much difference.

[broady]

didn't I hear that short toilet plumbing bend increases the torque but savagely increases the fuel usage?

I was doing some reading, and I think you're better off keeping a long intake.

Using this calculator you can see that you're going to miss out on resonance points if you have too short an intake. That said, has anyone actually measured the temperatures to see if the intake side is definitely significantly cooler than the exhaust side?

[sliq]

didn't I hear that short toilet plumbing bend increases the torque but savagely increases the fuel usage?

i watch over my click counter like a hawk, and it seems the fuel consumption is more or less the same as if i was running the oem intake. this is when you are driving 'normally'. i've also got a cat back too.

as soon as you plant your right foot (on the gas), that's when the needle starts to drop noticeably.

[a_guy73]

Hi, I just thought I'd mention my experiences. I have tried a few filters and pipes on my nb before and after an exhaust upgrade.. If you have a stock exhaust expect a much nicer sound. You dont notice the power loss initially cos of the awesome sound.. but as soon as I put back the stock air filter setup, I imeadiately notice better low end throttle reponse at traffic lights. So what if you get 1 or 2kw at the top end? And with a sports exhaust my car is already loud enough. Performance gets worse if you turn on the aircon or if the day is hot cos its sucking in that nice hot enginebay air. I didnt notice much difference when piping air from the front either.
Its not worth it in my opinion - unless your willing to take a performance hit for the nice growl and slight extra oomph at 5-6000rpm.

CAI setups on the other hand with forced windscreen dam air might make it worthwhile.

[broady]

This article is for the NA, but it provides some interesting insight: http://autospeed.com/cms/A_110680/artic ... larArticle

[ma64rk]

I put a K&N Filter into my stock intake, no mods, nicer sound and (supposedly) better power and economy...haven't really noticed the power difference, but i'm a pretty relaxed driver, the economy i have noticed has improved slightly.
That'll do me!

[matt9111]

I've attached a K&N Pod to the end of my NB8B's stock intake piping, and last week I ran my car on a dyno and only got 61.3rwkw, which is low, I don;t think its down to the Pod, because the bonnet was open and there was a gigantic fan blowing air into the engine bay. But i'm still a little suspicious, lol.

It sounds great though, lol, fuel economy is worse when I plant my foot, I think it runs a little rich with the pod under hard acceleration.

But in saying all of that, I honestly cannot tell the difference in performance from driver feel (if there is any). Worth it, if you like the cool induction sound, lol

Cheers

[RG.net]

That said, has anyone actually measured the temperatures to see if the intake side is definitely significantly cooler than the exhaust side?

main reason why i did it is because of the aftermarket radiator, i had a metal crossover pipe with a pod, sitting near the stock location, and i noticed that the pipe was really hot, could barely touch it, new setup the pipe is warm, very touchable, no point having a cool location for your filter if the piping gets really hot.

[blehbear]

I've attached a K&N Pod to the end of my NB8B's stock intake piping, and last week I ran my car on a dyno and only got 61.3rwkw, which is low, I don;t think its down to the Pod, because the bonnet was open and there was a gigantic fan blowing air into the engine bay. But i'm still a little suspicious, lol.

It sounds great though, lol, fuel economy is worse when I plant my foot, I think it runs a little rich with the pod under hard acceleration.

But in saying all of that, I honestly cannot tell the difference in performance from driver feel (if there is any). Worth it, if you like the cool induction sound, lol

Cheers

61rwkw on an NB8B? Thats a bit low isn't it?

[matt9111]

Lol, yeah, to be honest I was expecting 70-80rwkw, I will probably go back and try with the standard air box and filter, and then maybe with a K&N Panel Filter.....

MXHEVN may have a point with the intake piping getting really hot...

You havn't noticed a decrease in torque with the really short intake pipe have you?

[sliq]

i have, but its negligible.

[broady]

MXHEVN may have a point with the intake piping getting really hot...

Perhaps that's why the stock piping is plastic

[sliq]

Another thing with the original pipe from the engine to air box is that the are flex points which actually create turbulance in the air flow which carries off into the engine rather than a straight flow.

Question, do you get a difference in sound just by replacing the panel filter to a k&n or something?

And if u have a CAI, does this all really matter seeing as though the air is running cold straight to the filter anyway?

yes to question 1.

i'm not too sure what you're after. if you mean sound, then yes, there is a noticeable sound when WOT. performance gains are minimal with a cai.

if you're interested, i have 2 pod filters (used) free to go. pick up in sydney or whoever gets it can pay for postage.

one is HKS mushroom, the other is no brand/generic.

[Okibi]

...Using this calculator you can see that you're going to miss out on resonance points if you have too short an intake...

I think this calculator works better for individual intake runners.

[marcusus]

one is HKS mushroom

Those mushrooms are the right sort for the "pod behind the driver's headlight" type of intake.