After resetting my ecu and idling for about 5 mins, initial response was the car lost torque, especially between 1 to 3k rpm the engine feels kind of 'lag', like the revs go up does not pull as before.
When driving on the highway there is some kind of humming resonance when it hit about 4k rpm, it is audible but not loud. in high rpm from 4k to red line, i can't really feel much difference compare with stock filter but the induction noise is a lot louder. It really annoys me as it is hard to drive around town with the loss of low end torque, and to get some decent power i have to rev it up pass 4k all the time.

I will post some pictures of the filter and do more driving this weekend & hope that the situation will improve.

For those using the same setup I wonder if u guys get the same result?

 

While switching to a K&N filter by itself (everything else stock) rarely produces any noticeable gains, I have NEVER heard of noticeable losses just by switching from a paper filter to a K&N cotton gauze filter. I personally find it hard to believe there could be that much of a loss by changing only the filter and leaving everything else stock.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by voofee &raquo;</TD></TR><TR><TD CLASS="quote">to get some decent power i have to rev it up pass 4k all the time.</TD></TR></TABLE>

You have to do that with just about every Honda.

I dynoed a Comptech foam filter versus the stock paper filter and it lost 1 ft/lb. of torque, but I'm not sure how the K&N would compare. Any decent filter should produce gains over the stock filter, but at 4k RPMs the difference between a stock filter and aftermarket is probably not very big. Once you're in VTEC you should notice bigger gains.

 

k&n 2820 is not a drop in filter, i think the part number for the drop in was
e-2427??

so u sure u modified the filter properly onto your stock elbow?

like PatrickGSR94 its rare that u will lose power from adding a drop-in filter.

 

I felt 0 gain/loss (compliments of A.D.*) Also no sound differences.

Maybe he left the top of the lid off. That would definately affect the low end and the sound.


**** Dyno

 

i did this mod just for the fact taht i "modded" my car... i dont think i gained anything except for a washable filter that almost never needs to be washed cuz its protected in an enclosed box...

 

No, the air box top cover is closed and resonator stayed, and I never expect a big gain by just replacing the intake. But I never expect it to lost torque/power in the lower range as well, it pulls quite significantly weaker than the stock intake and the revs take longer time to build up (that's what i called 'lag').

I will post some pictures later to show how the pod is joined to the stock elbow. I am thinking that the ecu will take some time to adjust to the new air flow as the idling is a little higher about +50rpm to 850rpm now.

 

so between the stock filter and the k&n filter there is no difference??

 

Some pics

 

Apex'i filter and elbow!

-Bryan-

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by voofee &raquo;</TD></TR><TR><TD CLASS="quote"> I am thinking that the ecu will take some time to adjust to the new air flow as the idling is a little higher about +50rpm to 850rpm now. </TD></TR></TABLE>

that's probably it...
it happened to me too coz after I reset the ECU when I did the ground cables mod and custom induction (done separately) the car actually ran slower and less responsive.
BUT dont worry... after a week or so u will start to feel the difference !!! just keep driving and dont reset the ecu when not needed

 

btw... can u tell me the exact part number for the air filter?
I wanna get it too, but I'm not sure whether the no. is the same here in Australia.


thankssssss

 

k&n ru2820, u can find it on the k&n website

well, i really hope that's the case as I will take it for a longer ride this weekend and see how it goes.

 

anyone heard about the comptech one?

 

did u get any gain ?????????

 

Honda-Tech ITR forum: the most sensitive butt dyno's evAr

 

I always thought that filter was too big for the oem airbox.

What happened to the popularity with the K&N RU-3130 mod? That filter will flow plenty of air plus it gives you a little more room in the airbox itself.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nick M &raquo;</TD></TR><TR><TD CLASS="quote">Honda-Tech ITR forum: the most sensitive butt dyno's evAr

</TD></TR></TABLE>

Seriously. Even if the K&N did somehow produce any whp loss I doubt it would be noticeable.

Lost torque and now the engine lags? I mean come on its a freaking air filter.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ActiveAero &raquo;</TD></TR><TR><TD CLASS="quote">

Seriously. Even if the K&N did somehow produce any whp loss I doubt it would be noticeable.

Lost torque and now the engine lags? I mean come on its a freaking air filter. </TD></TR></TABLE>

Agreed

Unless you dynoed it back to back I'd bet you'd never notice a difference.

And not a sensitive butt dyno.


As repeatedly posted, the Intake is NOT the ITR's shortcoming.

Now, if you're talking header,,, that's a completely different ball of wax altogether.

And to answer the Guy who asked about the Comptech filter, it works fine. No noticeable anything with the stock setup, just as the K&N and stock.

The Icebox is a different story but, STILL not any staggering gains.

The header made the most difference for me and many of us where I,H&E are concerned.

 

I´m wondering if with such a large filter if there is a loss in volume, which can decrease power. From what I gather the larger the volume inside the box the more power you gain, hence Mugen and Comptech, and in this instance the filter is larger using more volume inside the box and reducing power.

By the way is the K&N a dry type filter, or do you have to coat it with oil?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Todd00 &raquo;</TD></TR><TR><TD CLASS="quote">I always thought that filter was too big for the oem airbox.

What happened to the popularity with the K&N RU-3130 mod? That filter will flow plenty of air plus it gives you a little more room in the airbox itself.</TD></TR></TABLE>

If I remember the pics on BSQ's website correctly, the 3130 is more of a tapered, cone-shaped filter. When I installed the 2820 in my airbox, I took the endcap piece from the stock filter (the piece w/ the rubber thingy on it that fits in the airbox to support the end of the filter) and attached it to the end of the K&N w/ screws. It turns out that the 2820 is the EXACT same diameter as the stock filter. With both the elbow and endcap from the stock filter installed on the K&N RU-2820, it fits in the airbox exactly like the stock filter does, almost as if the 2820 were designed for the Integra airbox.

FWIW, the supposed "drop-in" K&N filter for Integras does not have that endcap on the filter, and it also does not have the rubber gasket that fits in the airbox near the elbow where the intake hose attaches.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IGGY &raquo;</TD></TR><TR><TD CLASS="quote">I´m wondering if with such a large filter if there is a loss in volume, which can decrease power. From what I gather the larger the volume inside the box the more power you gain, hence Mugen and Comptech, and in this instance the filter is larger using more volume inside the box and reducing power.

By the way is the K&N a dry type filter, or do you have to coat it with oil?</TD></TR></TABLE>

K&N uses an oiled cotten gauze filter media.

And the 2820 is the same diameter as the stock filter as seen above. ^^^

 

its been dyno'd that k&n replacement filters actually lose 1 hp or so on the WRX... and I recall the dyno's for the ITR that showed the same. The only good thing about a K&N filter is that you can save money in the long run by cleaning it.

whatever the case, as said before... its just the computer adjusting.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PatrickGSR94 &raquo;</TD></TR><TR><TD CLASS="quote">

If I remember the pics on BSQ's website correctly, the 3130 is more of a tapered, cone-shaped filter. When I installed the 2820 in my airbox, I took the endcap piece from the stock filter (the piece w/ the rubber thingy on it that fits in the airbox to support the end of the filter) and attached it to the end of the K&N w/ screws. It turns out that the 2820 is the EXACT same diameter as the stock filter. With both the elbow and endcap from the stock filter installed on the K&N RU-2820, it fits in the airbox exactly like the stock filter does, almost as if the 2820 were designed for the Integra airbox.

FWIW, the supposed "drop-in" K&N filter for Integras does not have that endcap on the filter, and it also does not have the rubber gasket that fits in the airbox near the elbow where the intake hose attaches. </TD></TR></TABLE>

Exact same size as stock does not mean that's the optimum size for power. And the little rubber thing that holds the end of the filter is not a big deal. The filter is not going anywhere so it is completely not needed.

The 3130 attaches to the oem elbow so there are no fitment worries.

 

gee I just purchased the E-2427 (drop in filter) for my comptech icebox.. almost made me worry that I went the wrong route.

Thanks for clearing that up Todd00