View Full Version : short ram vs C.A.I
phreek82
07-08-2007, 06:23 PM
so i know the physical difference but can anyone
tell me any pro's or con's of ether or
BCScion
07-08-2007, 09:01 PM
short ram = more air than stock and very loud usually, but more heat soak and hotter air entering engine.
CAI = is quieter and the air is colder which means more power. Bad side depending where its located opens up possibilities of hydro lockings(pulling water into engine and blows engine)
El_Jorge
07-08-2007, 09:10 PM
Dont know whether its in my head or not, but Ive had both. And the ShortRam seemed to make my xB sluggish on lowend
jwaj2002
07-08-2007, 09:20 PM
I think I read that both bog it down on the bottom end, CAI adds power but can fry your motor if you deal with much rain, RAI just makes it sound cool and look good
silver_bullet
07-08-2007, 09:21 PM
i like my cold air...but i worry soo much with my new kit that motor is gonna lock....but its def noticable power....
Voltage
07-08-2007, 10:15 PM
If you are really worried about Hydrolock, go with the Injen Hydroshield thing. I've never used it but it should work.
phreek82
07-08-2007, 10:29 PM
so with a difference of about 100 dollars in price usually
short ram is probally the way go
jester4666
07-08-2007, 10:35 PM
i like my SRI and i've not had any trouble with it....and i just took my xB on a 2000 mile round trip through new mexico, colorado...
Voltage
07-08-2007, 10:41 PM
Also just looked it up. If you are insanely worried about your CAI sucking up water, there is a Bypass Valve available by AEM. Should calm all fears.
http://www.aempower.com/ViewCategory.aspx?CategoryID=20
Edit:
The common consensus that I've read as well is that in order for you to really get a damaging hyrdolock then your filter needs to be <b>nearly completley submerged</b> in water. Or else some bad luck along the way.
_Keith_
07-09-2007, 02:39 PM
To hydro lock a engine the pipe would have to be submited over a foot..
On you lowered guys thats 2 feet of water about... if you drive into somthing that deep well you know.....:p
CAI Soppose to be more top end and cooler air - quiet
Short Ram hotter air and more mid range - loud
_Keith_
07-09-2007, 02:40 PM
And that aem bypass valve is worthless... It turns your cold air into a short ram
engifineer
07-09-2007, 03:11 PM
niether makes a noticeable gain on the tC, so it doesnt matter really. Try running one for 2-3 months (I did.. it was free and looked nice :P ) and then take it off after your butt dyno is used to the noise it made. No difference. Actually I had slightly better fuel mileage after it came off, but it was a tiny difference that could be washed out with other variables, so not a number I can statistically rely on. The slightly worse mileage with one would say it was at least doing some of what it is supposed to (cooler air = denser air = more fuel burned). In the end, they make noise and look shiny... they also heat soak worse than a stock pipe, which is why those that actually wanted some advantage from them built thier own with better heat shielding.
The bypass does nothing to turn your cai into a short ram. It only opens under the right amount of suction (like when you submerge your intake). The guy that designed it had a video for a while of him running his NSX up to about 5000 rpm with the intake in a tank of water, so it obviously does its job. The rest of the time you have a CAI just like any other.
But as with any of these cheapo mods that are supposed to provide such good results, no one has ever been able to show me reliable differences in track times with any intake. So unless you care about .00001 second, you wont see much change at all. Any power you gain in one part of the band you lose somewhere else.
El_Jorge
07-09-2007, 03:12 PM
On the box, Ive had
1. Ebay short Ram
2. Injen Cold Air intake
3. AEM cold air
4. Injen Short Ram
I think the Injen CAI and AEM worked best. The AEM was the long L-shaped one. But that filter was WAY close to the ground.
Didnt FEEL like I lost too much lowend. But also remember I have an auto. And auto boxes are cows off the line.
_Keith_
07-09-2007, 03:40 PM
niether makes a noticeable gain on the tC, so it doesnt matter really. Try running one for 2-3 months (I did.. it was free and looked nice :P ) and then take it off after your butt dyno is used to the noise it made. No difference. Actually I had slightly better fuel mileage after it came off, but it was a tiny difference that could be washed out with other variables, so not a number I can statistically rely on. The slightly worse mileage with one would say it was at least doing some of what it is supposed to (cooler air = denser air = more fuel burned). In the end, they make noise and look shiny... they also heat soak worse than a stock pipe, which is why those that actually wanted some advantage from them built thier own with better heat shielding.
The bypass does nothing to turn your cai into a short ram. It only opens under the right amount of suction (like when you submerge your intake). The guy that designed it had a video for a while of him running his NSX up to about 5000 rpm with the intake in a tank of water, so it obviously does its job. The rest of the time you have a CAI just like any other.
But as with any of these cheapo mods that are supposed to provide such good results, no one has ever been able to show me reliable differences in track times with any intake. So unless you care about .00001 second, you wont see much change at all. Any power you gain in one part of the band you lose somewhere else.
True and not true...
Once it gets so hot the rubber conforms a bit different in there... Kind of like the version one rad shield :smile:, and if you dont keep it clean it defeats the purpose.
Iateacricket
07-09-2007, 05:46 PM
I've had no issues with my Fujita SRI.
road_warrior
07-09-2007, 08:29 PM
I just bought a Fujita CAI. I am hoping to get it installed this weekend.
Binder86
08-01-2007, 12:57 AM
The power gain is minimal with both. I was running an injen CAI in my 07 tc b4 putting in the turbo. FYI H_Town is having a really wet summer and i have not had any problems at all. But to answer your question the SRI will give you a little higher idle and the humble inline 4 vvt-i a little rev happy, while the CAI does give a bit more power due to the denser colder air that it's sucking in. Honestly save your money for a better upgrade
Krdshrk
08-01-2007, 09:27 AM
An intake is really just a sound mod - it sounds pretty nice is all. It'll give you a couple HP but not much. Any difference between SRI and CAI is all in your head.
ntwrkguru
08-03-2007, 01:21 PM
I just wanted it cuz it looks all pretty! It does have a nicer sound now too, which is a bonus.
aalbertson3
08-03-2007, 02:11 PM
I just bought a Fujita CAI. I am hoping to get it installed this weekend.
Make sure you post pictures when its installed. :smile:
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