Custom CAI air box

Quote:

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Originally Posted by booget

remove the resonator and the downpipe comnecting the airbox to the resonator

then goto bunnings and buy a pvc pipe for 10bucks
and a u-bend and postion the new pvc pipe and u turn towards the front of the car.

then ur car has a cold air feed
hehehe
and it looks stock cauz cops cant see it

it works 2
i keep up wid r's
and they r pretty shocked, me n slim got same mod

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Yup, that combined with a replacement aftermarket air filter is the best. I've done the same in my Si

i have seen dyno graphs that report otherwise. resonator is there for a reason.

I just finished my thesis so if you want to find out why, do a search on H-
T....


my .02

the resonators are there for noise reduction. all the aftermarket CAI's (also with dyno proven gains) do not use any resonators.

i'd like to see these dyno graphs of yours.

Quote:

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Originally Posted by ginganggooly

the resonators are there for noise reduction. all the aftermarket CAI's (also with dyno proven gains) do not use any resonators.

i'd like to see these dyno graphs of yours.

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Ditto.

All the resonator does is reduce NVH by eliminating standing waves within the intake piping.

heheh im trying to say.......

$10 and u get a pvc pipe
thats ur cold air feed

kapeesh?
hehe

umm you guys can think what you want. The primary function of a resonator maybe, yes to reduce noise, but you will find that resonance STRONGLY interrupts airflow.

I have seen at least 3 indep. tests confiroming this from coke bottles on intakes to resonators...

do your reserach first...... :) ;) hope you find your answers!!! ;) :)

Quote:

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umm you guys can think what you want. The primary function of a resonator maybe, yes to reduce noise, but you will find that resonance STRONGLY interrupts airflow.

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didnt u just dig a hole 4 urself?
ur saying it interrupts air flow

so wouldnt it be best to remove it for better airflow??

Quote:

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Originally Posted by jansenrw

umm you guys can think what you want. The primary function of a resonator maybe, yes to reduce noise, but you will find that resonance STRONGLY interrupts airflow.

I have seen at least 3 indep. tests confiroming this from coke bottles on intakes to resonators...

do your reserach first...... :) ;) hope you find your answers!!! ;) :)

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like i said, show me the dyno graphs brother. this is quite a claim you are making, and it does fly in the face of conventional wisdom. in such cases, you'll need to do more than mention three independant tests to make a believer out of myself, and i suspect, other forum members too.

as i said earlier, check out most well known aftermarket intake setups, i haven't yet seen one with a resonator.

hahahah, i think ginganggoogly is correct thats why they are called resonators, they elimante the resonance of the air being sucked in. When air is being drawn in the air particles vibrate through the pipes and reflect of the inner walls like ping pong balls bouncing off the inner walls of the pipes, this motion cause the air inside to vibrate causing the induction sound you get. Similar concept for silensors for guns and riffles. :) But it would be interesting to see your thesis jansenrw. Im also doing a thesis, im designing a pneumatic turbine shaft for an engineering company. Can you post up the address or location where i can see your thesis. Cheers.

thesis is IP of University of Queensland - you should know that by now... all work is university IP..


As for whatever guys... its my .02. I'm trying to offer some advise -take it or leave it.

I am by no means a newbie to modding cars neither am i an expert take it or leave it ...

so we'll take that as a "no i won't show you" then. ;)

no i wont show you.... find answers for yourself- its the best way to learn.....