modding stock air box

[Dv8]

is there any way to chop up the stock airbox for more power? just wondering..

[Chan_Man]

I don't even want to say anything anymore.

[NoSloCB7]

Must....utilize....search....feature

[Dv8]

nevermind!!!

[NoSloCB7]

nevermind!!!

OK!!!!!!!!

[Chan_Man]

OK!!!!!!!!

Yeah!!!!!!!!!!!

[tommi]

gosh! plz delete this thread...

[Kurobei]

Airbox Modz

is there any way to chop up the stock airbox for more power? just wondering..

My friend chopped something on his stock 2k Civic Si airbox to "supposingly" improve power but i'm not sure what and nor did I get to be in his car for the before and after effect to state my opinion... My opinion would just be to leave it alone... i'll explain why.

A stock CB7 airbox somewhat works just like a regular Cold Air intake and a real good side to it is that...even restrictive as it may sound it really helps with low-end acceleration on a stock CB7.

Here is my theory as far as automatic CB7's go and this is more than likely not a real problem with manual tranny people because u are doing the shifting not the TCU.

This is what I've experienced and noticed since a shortram was my very first performance mod on my auto F22a6 back in the day.

My tenzo-r intake wasn't smog legal so times when i had to get my car smogged I would take it off and throw my oem airbox on and be like WOW! my car feels hella faster with the stock box. It really bothered me since I've had a few runins with stock CB7's and wondered why they would get ahead of me and accelerate more quickly off the line.

Stock intakes work almost like the CB7 A6 manifold as it has it's own "butterfly" flap that opens up or closes depending on the drivers foot load.
AEM or any other intakes short/cold just gulp air thats it and doesn't have any way of controlling the amount of air it's sucking in. So in my opinion, tampering with the stock airbox might hinder it's functionality.


If you have a stock accord and the only bolt-on u have is a shortram, a heavy footed grandpa with cb7 that u meet at a stoplight may get u off the line. If you mash it, u may get the "lost in revs" symptom where ur car jumps from lets say 1k-2k-3k-then BAM! the needle jumps to 5k for a quick second then drops back to 3k while ur auto tranny shifts to the next gear. This happens because of the air surge coming in is so great. In between the time where ur car got rev-happy, the stock accord next to u is accelerating on more smoother linear level and made a swifter gear shift.

U can't expect to just put a shortram on your car and expect to be hotter than the guy next to u with a completely stock CB7. However the stock Accord may get u in 1st, but as the mph climb, your car will love to breathe alot more and will benefit from the shortram thus overtaking the stock accord from 2nd on up to 4th.
Think of it in terms of how the human body works. When you're walking you may breathe through your nose because it's easier, but when you are running you need to take up more oxygen so you will most likely be breathing out of your mouth.

This is why when u buy an Intake, it's very important to follow up with a header and exhaust system to complete the "lungs" of your car.



Some Budget Intake Mods People use:

I don't know if it'll make any difference or not...but a few cars like the Mitsubishi Eclipse,Ford escort and alike that have a OEM "shortram", u can just take the air Filter Plastic cover off to expose the filter to make it appear like a everyday shortram. The downside to this is that the filter was shrouded in plastic in order for it to last longer and also it's a cheap disposeable filter in which u change often like when getting or oil change etc.

Another budget way of creating a shortram would to be air intakes just take a adapter plate and slap a 15-20dollar cone filter that u can find in the "rice" section at Autozone.


Conclusion:

If keeping the stock box is your thing, I highly recommend just dropping a K&N filter in ur stock accord box. These filters alone have been proven to free up a little HP since flow more better than the cheap regular filters + u can clean and reuse them thus saving u $$$ in the longrun.

I'm sad that FushigiRes stopped on the fabrication of what would've been something very unique and probably would've functioned like a performance OEM airbox. There are companies like ARC and Mugen that make custom airboxes that excel over oem units. I was reading a japanese magazine earlier this year and saw a ARC like airbox for a CD6 accord and it got me thinking would this fit a CB7??

[Dirty Harry]

However the stock Accord may get u in 1st, but as the mph climb, your car will love to breathe alot more and will benefit from the shortram thus overtaking the stock accord from 2nd on up to 4th.
Think of it in terms of how the human body works. When you're walking you may breathe through your nose because it's easier, but when you are running you need to take up more oxygen so you will most likely be breathing out of your mouth.

...WHAT! You HAVE to be kidding. You mean to tell me that stock vs. short ram, stock will be faster at all RPMs of 1st gear? And the rest of that... wtf man. You get an A for effort on the long ass writeup but the misinformation is terrible. You have alot to learn on power/drivetrain operation apparently. Know your shit before you post, you're poisoning people's minds.

Double cha-ching for your post and thread topic

[HondaGuy1212]

...WHAT! You HAVE to be kidding. You mean to tell me that stock vs. short ram, stock will be faster at all RPMs of 1st gear? And the rest of that... wtf man. You get an A for effort on the long ass writeup but the misinformation is terrible. You have alot to learn on power/drivetrain operation apparently. Know your shit before you post, you're poisoning people's minds.

Double cha-ching for your post and thread topic

he made sense to me

[Dirty Harry]

It makes no sense whatsoever! Re-read the part I quoted above and then really think about how he's saying that works. If you really need me to spell it out for you, think about it this way. The human body's mobility is direct drive... muscle exertion moves the legs faster. There is no provision for "gearing" (this is so elementary I'm suprised I even have to explain this!)

I'm sorry but the guy's theory was wrong and the analogy was terrible.

[airridewagon93]

airbox

he is right the stock airbox out performs cheap air intakes .it is prven in sport compact magazine on a civic si that the stock box out performs cheap ass intakes .that is why all the top manufactures make intakes that are of same design of factory.like mugen,comptech and so on so do your math and home work before you batter some ones thread "doc"

[Kurobei]

...WHAT! You HAVE to be kidding. You mean to tell me that stock vs. short ram, stock will be faster at all RPMs of 1st gear? And the rest of that... wtf man. You get an A for effort on the long ass writeup but the misinformation is terrible. You have alot to learn on power/drivetrain operation apparently. Know your shit before you post, you're poisoning people's minds.

Double cha-ching for your post and thread topic

I'm not intentionally trying to misslead people and saying a stock airbox is 10x better than a aftermarket intake. Thats why I gave the example of how my auto F22a6 accelerated better with it compared to having the aftermarket shortram only in 1st. This is what I have noticed in my auto F22a6 Accord back in the day that the response was much quicker with the stock airbox. This is why I said maybe for a manual car this may not be the case since u can control the launch rpms but as far as my automatic the TCU will always bog everything. I have raced several other auto CB7's that were stock and they were faster off the line than my car in 1st. Autos will always have a bogdown slow response b4 getting up. Thats why i mentioned the "lost revs symptom" when the car finally picks up. Try doing this with a stock airbox and it's harder for the car to get lost because the airsurge isn't as great.

I appreciate your response because I want to know how others others feel about bolting only a shortram. Maybe my analogy is wrong 2u but I thought i was making sense. When you work harder by running, your heart beats so much faster and requires more oxygen. Thats why you start to pant and breathe out through your mouth to takeup more oxygen. Sure you can breathe out thru ur nose still but it's much easier breathing through your mouth. I was trying to word it a compare this to a oem box like being the nose for relaxed and aftermarket gulping more air for a running stage. I'm not talking about muscle exertion and how the human body specifically works, I'm talking about how a car can breathe easier with a aftermarket intake at higher speeds than a oem box. Maybe there is a better anology comparing how the two can work differentally on a automatic car but I'm just posting my experiences with oembox vs a shortram in 1st. This happened to me several times and thats why I've decided to post my experience.

Keeping a stock airbox I would just help it with a K&N filter rather than modifiying anything else than chopping it up.

[Mike]

he is right the stock airbox out performs cheap air intakes .it is prven in sport compact magazine on a civic si that the stock box out performs cheap ass intakes .that is why all the top manufactures make intakes that are of same design of factory.like mugen,comptech and so on so do your math and home work before you batter some ones thread "doc"

im not trying to argue with u, that might be tru, and i dont even have an opinion on this thread but u might not wana quoke everything u read from a magizine becuase there are maney differnt factors that the magazines normaly dont test....again im not trying to rase an arguement im just sharing wat ive noticed about magazines test

[homegrown_xt]

is there any way to chop up the stock airbox for more power? just wondering..

Just take out the restrictive resonator in the fender and put a k&n filter in the box. Run the stock pipes that were hooked up to the resonator into the fender to get the COOL air. That seem to help my car out when I did that.
Just my.02