I am planning on buying a Cold Air Intake for my 07 Civic Si. I have always had AEM products before and I am leaning that way but I was wondering to those who may have already put an intake on there Si as to what your opinion is. I know its gonna be close as far as power gains, but just wanted some feedback before I bought something, thanks alot

<FONT COLOR="red">&gt;!GUYS: THE LINKS BELOW ARE FOR VOTING ONLY!&lt;</FONT> They do not <U></U>take you to a website or anything other than placing a vote. If you made a mistake and voted erroneously, please contact moderator "builthatch" and he will correct the mistake vote.

 

Well you cant' do the 'custom X' one because he hasn't released how he did it yet. But regardless of that, I would wait a while to see what damage, if any, he has done to his car. It hasn't been out long enough, and he's swapping parts from a CR-V, and messing with intake sensors.

 

the AEM sounds nice yooo but i'd go injen thooo

 

thanks for the info

 

why do you keep posting and deleting it to bump this thread?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by elohel &raquo;</TD></TR><TR><TD CLASS="quote">Well you cant' do the 'custom X' one because he hasn't released how he did it yet. But regardless of that, I would wait a while to see what damage, if any, he has done to his car. It hasn't been out long enough, and he's swapping parts from a CR-V, and messing with intake sensors.</TD></TR></TABLE>

While I see what you're saying. He's using an intake tube from a CRV; I don't quite see how that could cause any issues....its a rubber hose almost identical to the stock one but a little lager in diameter..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by elohel &raquo;</TD></TR><TR><TD CLASS="quote">Well you cant' do the 'custom X' one because he hasn't released how he did it yet. But regardless of that, I would wait a while to see what damage, if any, he has done to his car. It hasn't been out long enough, and he's swapping parts from a CR-V, and messing with intake sensors.</TD></TR></TABLE>

Hondas swapping parts with other Honda models for increased performance???

never! who would ever think of that....seriously..

more on topic. I've got a K&N SRI, but I'm waiting on password to come out.

 

do you honestly think that intake giants like AEM and injen test a car for several months before releasing it to the public... injen told me they only need my honda Fit for 2 days... i have numorus dyno sheets and more importantly AFR's that prove my intake is not only SAFER than the competion but makes alot more power and is one of the only intakes that will give you big gains in tq. the injen CAI lost tq on the dyno and so did the fujita SRI... while the fujita gave the most gains in power out of the 3 tested intakes vs stock (8WHP) my intake gave another 5WHP on top of that and an average of 5-7 WHP over the fujita across the whole RPM range. the dynos dont lie

 

well it made power over the stock peice so i don't see your point here.

and the intake sensor was never touched.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lando Griffin &raquo;</TD></TR><TR><TD CLASS="quote">why do you keep posting and deleting it to bump this thread? </TD></TR></TABLE>

he's not. when someone votes, it bumps the thread.

also, i think it should be noted that the polls on h-t are not reliable. the software design is flawed and most people end up voting for the first choice by mistake because they think it's some sort of web link.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xfactorwrx &raquo;</TD></TR><TR><TD CLASS="quote">do you honestly think that intake giants like AEM and injen test a car for several months before releasing it to the public... </TD></TR></TABLE>

i have faith in AEM's R&D. i don't necessarily believe they needs 'months' to realize at this point if an intake they make is 'safe' in a platform that has been out for quite some time. the biggest problem is parts additions are not just a matter of throwing parts on, it's a synergy that needs to be found. unfortunately, it's impossible for a manufactuer to realistically recreate all potential combinations of parts and guarantee gains. What they have to do is figure out what is the best compromise that will give the best overall performance for the biggest cross-section of people. I believe that AEM does this. Injen, Fujita, etc...i can't speak for them, but AEM i can.

 

alot of problems with AEM, there DRYflow might trap more particals but it cokes power at the same time, numerous issues with there fitment were the botton of the CAI tube will rub agaisnt the body of the car and break. 1st versions of the actual CAI gave CEL's for a long time. gains are poor and AFR's go lean when more mods come to play, espeically cams. while AEM may make great products for other cars it has certainly fallen short on the FG2 FA5.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xfactorwrx &raquo;</TD></TR><TR><TD CLASS="quote">alot of problems with AEM, there DRYflow might trap more particals but it cokes power at the same time, numerous issues with there fitment were the botton of the CAI tube will rub agaisnt the body of the car and break. 1st versions of the actual CAI gave CEL's for a long time. gains are poor and AFR's go lean when more mods come to play, espeically cams. while AEM may make great products for other cars it has certainly fallen short on the FG2 FA5.</TD></TR></TABLE>

i find that interesting because the intake tubes are made with incredible consistency from one to the next and the cars themselves are of course mirror images from one to another, so i'm unsure of how one guy's AEM unit could rub and another guy's wouldn't, unless of course it was not adjusted properly...

also,

if the AEM causes lean afr's when combined with other mods, doesn't that mean the car needs to be tuned? And at that point might offer great gains since we do need synergy sometimes when combining parts? Since when in the Honda world do we installed several parts, particularly cams, and not tune?

 

I think AEM had an early design issue that they rectified on later production runs.

I don't see how a CAI or SRI could lean out these cars. The mass air meter is actually measuring the amount of air coming in and adding fuel to compensate for some additional airflow (like i/h/e). As far as cams go, they're kinda pointless right now without tuning options..

alot of CEL issues had to do with people not unplugging the battery and resetting the ECU. I just don't think the Honda guys are used to Mass Air yet. Lean issues could have been caused the same way.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IT GUY &raquo;</TD></TR><TR><TD CLASS="quote">I don't see how a CAI or SRI could lean out these cars. The mass air meter is actually measuring the amount of air coming in and adding fuel to compensate for some additional airflow (like i/h/e). </TD></TR></TABLE>

i had the same question, but figured that would be addressed with said resets and stuff before complaining about lean conditions and mil's.

 

ive dynoed all of them, the AFR's lean out on AEM and fujita and go crazy rich with injen. point is my intake beat all these on the same dyno by ALOT. and made alot of tq on top of that.

 

but...how? it's a MAF. if you are letting more air in, you reset the ECU, and it adjusts to a pretty wide extent, no?

 

as doug from hondata said the new MAF on the Si is now the main ECU tool for controlling the amount of fuel the car uses, the vanes honda uses inside the top cover housing are designed in such a way to alow the MAF sensor to accurately read air and adjust fuel accordingly, take them out like all aftermarket intakes and all you get is a bunch of turbulent unmetered air going through. this is why you only see gains if any up top on the 2nd lobe in vtec with aftermarket intakes. but down you low you will lose hp and lose alot of tq. CEL's, hesitation, studdering are common problems with CAI's and most SRI's, my intake retains the honda vanes and this give you a steady AFR, not some jaggy up and down reading like the AEM and injen, fujita was better but still not good. another reason my intake gives great gains down low and much improved drivabilty.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xfactorwrx &raquo;</TD></TR><TR><TD CLASS="quote">ive dynoed all of them, the AFR's lean out on AEM and fujita and go crazy rich with injen. point is my intake beat all these on the same dyno by ALOT. and made alot of tq on top of that.</TD></TR></TABLE>

wouldn't the easiest way for you to help us understand is post those dyno sheets for all the intakes you tested?

oh and about the "vanes" you are talking about... what exactly do you mean?

There are two different types of Mass Air Flow sensors: Hot Wire and Vane Meter.

A Hot Wire design places an electrically charged hot wire in the air stream and the sensor reads changes in the resistance of the wire brought on by the temperature/density of the air flowing past it. The sensor tries to compensate for the resistance in the hot wire and keep the resistance constant. During the act of rebalancing the resistance is converted into a voltage signal of between 0 and 5 volts and sent to the ECU.

The Vane Meter uses a flapper door contraption that is lightly spring loaded. As the air comes into the engine the movement of the flapper generates the 0 to 5 volt signal that is forwarded to the ECU. The drawback of this sensor is its potential as a restriction as air volume is increased, i.e. turning up the boost.

never noticed a flapper door on my mass air sensor



Modified by IT GUY at 11:58 AM 10/5/2007

 

AEM in pic





i am vey tight lipped about what i do to the MAF housing right now.

heres the AFR vs stock on a bone stock car.







heres another stock FA5 that had more time with this intake not just swapped on while on the dyno. this car was dynoed a day after the intake was installed.

 

so you're not gonna tell me about the "vanes"?
on a mass air meter that's a hot wire?

I understand what you're saying about how it is placed in the tube.. my K&N actually has a little tab inside to regulate airflow to the MAF sensor.

I think the distance from the TB has more to do with other intakes lean conditions you mentioned.. On mustangs (when I used to work on them) the turbo/supercharger guys always had trouble after moving the MAF sensor from the stock location (usually further away from the TB). This isn't new technology by any means if ford started using it in '89. There's lots of info on mass air out there.

I'm not seeing a good comparison here... dyno'd on different days, no mention of ECU reset.. stock AF ratio graph but no graph supporting the lean condition you spoke of... help us understand

 

well they make the car run correctly and they allow the car to show its max gains from a intake. the K&N flap was a cheap fix for them as it was probably cost affective for them.

the FG2 was dynoed SAME day and had a ECU reset right before we did the pulls on the dyno with my intake.

fujita vs my intake on my car with 06 TSX CAMS



fujita vs my intake in power output... AND TQ... haha






Modified by xfactorwrx at 10:08 AM 10/5/2007

 

you're not really explaining anything are you?

you say you're intake is better, but you have no proof and you won't explain why, or show any definitive proof

got a pic of those "vanes" you keep talking about? oh I forgot, that's a big secret

 

so none of this really applies to the rest of us with stock cams then?

I appreciate the other dyno graphs you added

I'm following you a bit better now

 

xfactor, i applaud your efforts with this platform. I think we all appreciate someone who is trying to make something better!