G2IntegraGS

Hey,

I currently have a ebay short ram intake, BPI stack and K&N filter. No problems with it but from what I've seen longer piping works better. I dont want to spend another $40 on a cold air from ebay for several reasons. 1, all the sellers have bad feedback and 2, they dont have them in black.

So basically I'm just looking for an extension to connect to my SR.
I have an old AEM CAI that I could hack and make the extension but the piping is smaller than my SR . Do you think it would effect performance to go from a smaller pipe to a bigger pipe? Then there is the flow stack. It fits a 3" pipe so I dont know how I would get it to connect to the smaller pipe without another size adapter.

Any input is appreciated.

viper_boy403

iTrader: (1)

You could always just build a cold air box around the filter using aluminum sheets. Not hard at all, just measure, cut and bend

Apex1972

you could also go to a local muffler shop and have them make your piece fpr you and just paint it black to match.

Acidcrakker

You can always paint the cheapo intakes diffrent colors. thats what Ive always done.

If you dont want to paint them, i have a name brand cai for you.

G2IntegraGS

Im not looking for the "cold" air, I need the length of the tube.

jlude90

KTeller sells AL piping at good prices, that what i'm going to be doing when i get ready to finish my intake

and a larger pipe going to a smaller pipe with a smooth transition would net a higher airspeed at the throttle body

the formula of Pressure over density times volume squared = pressure over density times volume squared

you can see if density stays the same, P/V^2=P/V^2

so P(2)= (P(1)*V(2)^2)/V(1)^2

kingh90

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlude90 &raquo;</TD></TR><TR><TD CLASS="quote">KTeller sells AL piping at good prices, that what i'm going to be doing when i get ready to finish my intake

and a larger pipe going to a smaller pipe with a smooth transition would net a higher airspeed at the throttle body

the formula of Pressure over density times volume squared = pressure over density times volume squared

you can see if density stays the same, P/V^2=P/V^2

so P(2)= (P(1)*V(2)^2)/V(1)^2</TD></TR></TABLE> Werdddd

G2IntegraGS

thanks for the reply but thats way over my head. I was actually going to go from small to big. I assume that would be bad.

gstrudler

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by G2IntegraGS &raquo;</TD></TR><TR><TD CLASS="quote">Im not looking for the "cold" air, I need the length of the tube. </TD></TR></TABLE> No, I'm pretty sure you're looking for cold air. The reason CAI make more power than SR is because of the colder air. Most SR I believe are better tuned for the operating range of our engines, but get heat-soaked quickly. It's not the length of the tube necessarily that is helping a CAI, it's the colder air (about 1% power for every 10 degrees in the engine).

I'm going to be trying a custom cold air box (similar to the ARC) on the end of my SR with an extension down (similar to a CAI), to hopefully keep the tuning of the SR, get good throttle response with the box (more air available when you mash on the throttle), and get my colder air...

98vtec

its not because of the colder air.

research intake resonance tuning.

gstrudler

I'm aware of resonance tuning, hence why I mentioned it. I was under the impression that SRI usually provide more usable tuning effects than the long pipes of the CAI at least on a daily driver, but I could certainly be wrong. I assumed (perhaps incorrectly) that the difference in temperature between the two provides more distinction than the tuning effects.

To the OP, I would stick with 3" piping so you can use your flowstack and also don't lose too much charge velocity going into a bigger pipe. Just my opinion, however.

commandff

Why does everyone always rave about building a cold air box, when the prelude already has one? You know that hole under the stock intake? plant a filter under there, with a tube (atleast 2.5", pref 3+) going to the TB.

On another note: with a short ram, and my hood closed, I get 227 WHP; with the hood open I get 236; with an AEM CAI, routed to the "stock" cold air box, I get 231-233, reguardless of the hood being open.

So, to make a long story short, Short Ram = better HP, but not when it's sucking hot air under the hood.

Awhile back, I saw a project on PO where a guy made a quazi-ram air setup, that pulled air from a hole in the skid plate, and was piped to push air up, in to the engine bay, to a short ram... he supposedly made some decent gains off of it.

Just my -0.02

V/r,
Mike

teambk8

I say the SRI with the flowstack is the best setup, I went from a AEM CAI to a ebay 3" short ram with a flow stack and "felt" an increase. Now whether that was a self fullfilling prophecy or it actually increase power thats anybodys guess. I think that since I live in the desert (southern Arizona) that I gained from the SRI cause while I am driving the air 3ft off the ground is much cooler than the air 1ft off the ground due to the pavement "heatsoaking"

my 2 cents

jlude90

i'm going to have to go with a solid no on that one

and you can't make a claim like that on a butt dyno, no offense

but the air immediately close to the engine is much warmer then the air farther out, whether you're in hot AZ or not

autoluder

not if it is a cold air, the metal box is for short ram, if cold air needed a box then they wouldnt call it cold air intake.