Need suggestions on another Intake

[rsmith157]

I'm looking to buy another intake. I bought the K&N Typhoon CAI and started to install it but then noticed how exposed it would be to water. Anybody have any suggestions on the best SRI or one that is not subject to taking in water. I would like one where the filter is easily accessible also. I'm just interested in better performance and don't care about sound.

I installed the Perrin pulley, Dc sports headers, and iridium sparks and really can't tell much difference. I have an auto, that probably has something to do with it. I'm also thinking about having a custom header back exhuast done. I'm talking with some local shops about cost. etc.

THanks, for any input.

[scionxb.org]

There is some interesting talk about intakes in this thread (http://www.scikotics.com/forums/showthread.php?t=20251) that may help.?

:ponder:

[um_lunchbox]

I have always been fond of fujita ... look them up ...

But honestly most intakes need to draw "cold air" and that would mean away from the engine, so almost all will dip low and away, except for those creative few that want to go above the hood like a snorkel ...

[THansenite]

I wouldn't be too worried about water getting into the intake unless you plan on driving through ponds. Unless the intake is completely submerged, you won't have problems. It doesn't matter if the filter gets a little wet, hell, a little water in your engine helps clean out carbon deposites.

[pacosxb]

I have an injen rapround it gave me a lot of power the filter is in my fender and i dont have any proublems with water, and it snows out here!!!

[ShortBus]

I live in SW Louisiana so it rains here every once in a while. No problems with the FUJITA system, but if that worries you dont forget about the Perrin one that mounts just behind the upper grille. They have cool colors too.

[rsmith157]

Thanks for the replies. I'm looking at the AFE. I think it is relatively new. What do you think?

http://www.scionlife.com/forums/viewtopic.php?t=202875&highlight=afe

[scionxb.org]

I really like it, Reggie. I am looking for CAI too and I could see myself rockin' that with a small vent in the hood.?

:wohow:

[phocis850]

Original post at xBsite.com
(http://www.xbsite.com/forum/scion-xb-cold-air-intake-vs-short-ram-t-245.html)
Here's the deal, the first gen Scion xB has very little power and the second gen, while not as bad, but still not something to brag about. This article is to help you understand the difference between a cold air intake (CAI) and a short ram intake (SRI) for the small engine that we have in the xB.

COLD AIR INTAKE (CAI):
The cold air intake has one main benefit, getting colder air. It does this by extending the filter element outside of the engine compartment. The temperature difference can be quite impressive between the engine compartment and the fender. Since colder air is better for the engine, that is what the CAI is trying to provide.

A cold air intake usually consists of multiple bends in the tubing. Since the filter is outside the engine compartment, it is necessary to have at least 2 bends in the tubing. Many people believe that the more you bend the tubing, the more resistance you have in the air.

SHORT RAM INTAKE (SRI):
The short ram intake seems to not have any benefits, but looking past the hot air it seems to swallow, it seems to excel at what it does. The SRI sits inside the engine compartment. Yes, the downside is that it doesn't pull in that cooler more dense air, but it also doesn't have as many bends. Most SRI's only have 1 bend, and it usually is not substantial direction change. With the SRI's lack of bends, this gives the air the ability to have a higher velocity over it's CAI cousin. With the faster moving air, the short ram intake can help "push" the air into the intake manifold.

THE DYNO DIFFERENCE:
CAI = Usually, a CAI will have a higher HP & TQ rating, but not so for the Scion xB. Most CAI systems see performance gains in the upper RPM range, providing better torque gains in that area.

SRI = Most short ram intake systems see performance gains in the lower RPM range, providing better torque gains in that area. Low end torque seems to be something that our beloved xB seems to be missing.

THE WINNER?
That is for you to decide.

Everyone has their own opinion on the CAI vs. SRI issue. Please, do your research. Make your first goal to narrow your decision down between the two difference types of intakes.

What's my opinion on the best intake you ask?
That is for another article http://www.xbsite.com/forum/images/smilies/wink.gif

[rsmith157]

Thanks for the info. I'm probably going to do the custom header back exhuast first and then the intake. This is what I'm looking at doing...

http://www.clubxb.com/forums/f28/7755-new-header-back-system/ (http://www.clubxb.com/forums/f28/7755-new-header-back-system/)

I'm going to try and duplicate that. Again, I really can't feel any difference in performance with the perrin pulley and dc sports header. I'm going to try the exhuast and then the intake and call it quits.

[Big-Kokujin]

ebay short ram...

[Kenrock1000]

Ive been looking into the CAI and SRI also. I know that these little cars dont pump out much and Im not looking for a huge HP gain, and even so, we go from 80rwhp to 90 max? lol

I am definitely not into it for the HP gain...more for the sound and the fact that the motor will breath easier.

So this raises a few questions for me (sorry to threadjack the original poster)

1) Are there SRI'S out there that are smog legal? would think there are not.

2) Is the sound the same in contrast from CAI to SRI?

[slamminxb]

cai-sri for the standered the cai sounds really deep. and or the autos the sri sounds good. as far as the water getting in the intake with out being submerged it canhappen. locked my box up just the other night in very shallow water and i have a sri

[Devodem]

Most CAI now come with bypasses that help with the disapation of water that may get into the intake. For example the AEM CAI have optional bypasses.

[phocis850]

Take the snorkel off the stock box and see if that sounds good enough.

[TastyTuner]

Take the snorkel off the stock box and see if that sounds good enough.


i just put a k&n drop in filter and was thinking about doing this, has anyone done it, or howabout redirecting it behind the grill?

[Kenrock1000]

Now Im sort of leaning toward the SRI...but where is the filter located? Im guessing it differs from kit to kit, but Id go with a SRI if it routed to in front of the grill. My billet is pretty open so good air will flow into it.

Anyone have pics of their SRI installed?? Id like to see

EDIT: Okay, looked around and Im going for the Injen SRI. Because of a few reasons:
1) quality product
2) CARB approved
3) the location of the filter from the CAI to SRI is not that great and why pay more for the CAI?

I cant wait for my b-day now!!

[gta]

every intake I have seen the filter is near the driverside headlight, or driverside foglight. except one. The Perrin intake puts it right behind the grill - http://www.perrinperformance.com/products/show/285/Short-Ram-Intake-System?category=3&model=17

[Kenrock1000]

Yea, I decided on the SRI Injen since its CARB approved. Im just waiting for my tax return :up:

I took out the snorkel just now when I was putting my stock headlights back in...It didnt sound much different, Im getting ancy! lol

[gta]

hehe. nice. if you need help installing lemme know, though a SRI shouldnt be hard at all.

[Kenrock1000]

hehe. nice. if you need help installing lemme know, though a SRI shouldnt be hard at all.

Yea, I couldnt figure out how they installed being that it was near a straight tube, but when I opened the hood to look, I was like wow! Haha

These cars are SO easy to work on. I was just saying to my g/f today that that little business card saved my car. I was planning on trading it in, but now that I found all these cool aftermarket parts for it, I re-fell-in-love. :rofl2:

[gta]

awesome! im glad we could help :D

[phocis850]

Nothings better than box love ;)

[Devodem]

Yea, I decided on the SRI Injen since its CARB approved. Im just waiting for my tax return :up:

I took out the snorkel just now when I was putting my stock headlights back in...It didnt sound much different, Im getting ancy! lol

If you dont have fog lights you can make a Lowes or Home Depot run and make a hole in the plastic piece to create venting to get some air to that SRI Injen.