Rep Power: 0

ok after reading all what i could about intakes and realizing that most of them dont work that much (had 2 previous intakes before ) i decided to make my own v2 intake i just finished last night and tested it today i really have low end now and the car really seems responsive at any rpm range!!
my own 0-6 test was like this:
with aem sri:9.0 - 9.2 / 8.8 with the hp racing catback exhauset
with hp racing sri 9.1 stock exhaust
and with my custom v2 intake this morning 8.6 -8.7
before i couldnt spin my tires when going to 2nd due to my yokohamas avs es100 but now i can!
this is the parts that i used
used ebay intake tube 3inches $15
pepboys 2.5 tube $5
arospeed filter $25 (i had it from my hp racing intake)

this is a drawing when i get home i'll get a photo posted

i just wanted to share this and if someone has it tell me ways of how to improve it.

 
Rep Power: 0

i will post pics when i get home
i used the stock top portion of the airbox to keep my low end and since the hole in the box is 2.5 no cutting or anything was needed
im also thinking about putting heat resistant tape to keep it cooler

 
Rep Power: 370

so I'm assuming you removed the stock filter and the top portion of the intake is just an empty OEM airbox right?

 
Rep Power: 0

yeah i took it off

 
Rep Power: 362

I recommend that you extend the tube down to where most people's intercooler would sit... like have the filter sit in back of the lower grill

 
Rep Power: 0

Masn this is the oldest (and dumbest) homemade intake theres ever been. It doesnt come near the performance of an off the throttlebody SRI. The drastic arc the air needs to make inside the box defeats its prupose. Thats where the clog is. Get a real one. and yes I have done that one too and quickly got an SRI. If an iontake doesnt attach directly to the TB it aint worth squat but noise.

 
Rep Power: 276

^its so dumb 'he' actually noticed difference with it

waiting on pics... this is interesting. but im pretty sure its just gonna end up like any other intake on the market.

 
Rep Power: 0

i think the whole idea with the box as part of the intake design is a good idea. Or at least some way of having the open-element cone-type filter encased in something so that like vacuum pressure could be created.

Integra, RSX, S2000 and NSX airbox (i think) have piping directly from the TB to a cone-type filter which is then enclosed in a box. Highend is achieved through more filter surface area achevied with cone as opposed to flat type filter elements, low end is retained through box and small opening in box that creates vacuum pressure (i think, dunno for sure)

When i had an SRI, i found this wierd *** liek bucket thing with a 3 in opening in the side for storm draining. i bought a $10 filter, plastic welded (like glue) the filter to the edges inside of the wierd bucket so that the filter was enclosed and air flow was directed to the filter itself via the 3 in opening. i noticed gains in the lowend lost through the SRI and the highend was pretty much the same. sounded different too, more boomy and low-basesed-ish with some growl. haha

However, i still like this idea Props!

 
Rep Power: 278

OK i know this sounds kinda ghetto BUT how do you think a true custom V2 would work?
Like this:


Basicly a cone filer, a cut down 3" ebay intake (end with the bend), 3" to 2.5" 45 degree silicone coupler, 2.5" pipe w/ collar for heater bypass, and 90 degree silicone elbow with hole for air temp sensor. Not something I plan to build but this thread got me thinking, just wonder how it would work.

 
Rep Power: 0

no, that's not how the v2 works...i have it so i think i can have a say in this thread...

the design is simple, the design was made by information from fluid dynamics which includes friction loses, entrance and exit loses etc....

the design they have there is a high friction entrance loss intake....the 3" diameter pipe is basically like a big air box...while the 2.5" diameter pipe is the real intake pipe....the air is trapped inside the 3" pipe, and the 2.5" sucks it in...

so to me, you can't really say a v2 is a sri/cai...because it's not, it's basically an airbox kinda like the Mugen or ARC intake chambers..

and also the design of the intake does not look like this:


the 3" pipe doesn't gradually decrease to the 2.5" pipe...the 2.5" pipe actually goes into the 3" pipe a good 6-9"...

if you guys wanna learn more about entrance/exit loses, u might wanna search it up on google...or u can search up "bernoulli's equation" and hopefully you'll get something....

 
Rep Power: 0

wll bad news my experiment did not work that well the first day was fine second day was ok but now i noticed a lot of lag in the 4-5k rpm range but below that it does has a lot of pull better than stock im not sure about high end because i dont trust my butt
im driving to moroso today or next week depending on the weather but if i dont see any diference i'll put the aem one or the stock aribox dam i just wasted 5 dollars
on that
i took some pics but my uncle camera is stupid and doesnt let me upload them into my mac on saturday i'll try to upload them from his pc

one thing that i'v noticed is that the tube doesnt heat up that much even when driving hard

 
Rep Power: 0

basically thats what i did i used 2.5 piping and 3 u have to let the 2.5 pipe slide a little into the 3 look at the AEM website and look at the v2 demonstration thingy so u get the idea

 
Rep Power: 0

^ it's not as easy as it looks....by just changing the length of the 2.5" pipe that goes into the 3" pipe, it'll give u different results...