CAI vs. Short Ram
Thread Starter
Registered!!
iTrader: (1)
Joined: Sep 2001
Posts: 1,201
Likes: 0
From: San Antonio, Texas, US
Rep Power: 0 
hey this is kinda a silly question but what is the difference between a cold air intake and short ram air intake? please help im a bit confused!thanks everyone!
a short ram is jsut a shorter tube compared to the cold air....the piping of the cold air intake leads its air filter all the way down to the bumper....the short ram is just kinda next to the battery....
cold air brings in more air but colder compared to stock........short ram brings in more air but not as cold compared to stock......i personally thing they're pretty much the same thing....for my civic anyways
cold air brings in more air but colder compared to stock........short ram brings in more air but not as cold compared to stock......i personally thing they're pretty much the same thing....for my civic anyways
Registered!!
iTrader: (7)
Joined: Aug 2001
Posts: 7,196
Likes: 1
From: East Tennessee-Knoxville
Rep Power: 373 




depending on your car being an auto or stick, if you have a auto then you need to get cai from injen. if you have a stick you can get either one. More gains for the auto come from injens cai race division.
Injen
Injen
Retired - SoCal FI Mod
iTrader: (4)
Joined: Jan 2002
Posts: 3,139
Likes: 0
From: Boston, MA
Rep Power: 0 
Please read the FAQ next time:
FAQ
1. What is a "CAI"?
The term CAI is short for Cold Air Intake. It's premise is to suck in "colder" air from outside of the engine compartment. Because colder air is denser, you end up getting more oxygen into the engine. The O2 sensor sees this extra oxygen, and in turn, the computer adds extra fuel to the mix.
2. Can X CAI fit on Y model?
The AEM CAI will *only* fit on the DX, LX, and EX with manual transmitions. Since the HX is basically the same as an EX the AEM CAI for the EX with manual transmition should fit the HX with manual transmition, but this has not bean verified.
The reason that this will only work on the civics equiped with a manual transmition is that the AEM CAI mounts to a bracket located on the manual transmission. Also, AEM did extensive tests and concluded that the CAI for automatics did not help in producing more horsepower. They will never make one for automatics.
The Injen CAI is more of a "true" CAI in that it mounts behind the bumper, and is completely outside of the engine compartment; unlike the AEM CAI, which sits rather low below the battery. The Injen CAI is made for all models; DX, LX, and EX. Again, no word whether it fits the HX.
The ICEMAN CAI has recently bean released for the 7th gen civic. There is no concrete information to report as of yet, but expect this to be updated in the next version of this FAQ.
3. What is the best CAI?
There are various reasons to choose a particular CAI over another. Check the dyno sheets to see which CAI you prefer. You might chose AEM's CAI based on it's filter location and the fact that they also make a bypass valve for it that has bean tested to prevent your engine from injesting water when going over water that is deep enough to submerge the filter completely. You might chose Injen's CAI because the filter element is under the right headlight and is completely outside of the engine bay. You might also chose the ICEMAN CAI because it is made out of crosslink polyethylene which has the lowest thermal conductivity rating of any single-layered moldable material available on the market today. Then again, you might buy a no-name CAI and be just as happy with it as you would be if you had bought one of the brand name CAI's. The choice is yours.
4. What is a "SRI"?
The term SRI is short for Short Ram Intake. Think of a CAI which has the lower pipe cut off. It allows for better flow to the engine, but it still sucks air in from the engine compartment since that is where the filter is. Sometimes a SRI is also referred to as a warm air intake.
FAQ
1. What is a "CAI"?
The term CAI is short for Cold Air Intake. It's premise is to suck in "colder" air from outside of the engine compartment. Because colder air is denser, you end up getting more oxygen into the engine. The O2 sensor sees this extra oxygen, and in turn, the computer adds extra fuel to the mix.
2. Can X CAI fit on Y model?
The AEM CAI will *only* fit on the DX, LX, and EX with manual transmitions. Since the HX is basically the same as an EX the AEM CAI for the EX with manual transmition should fit the HX with manual transmition, but this has not bean verified.
The reason that this will only work on the civics equiped with a manual transmition is that the AEM CAI mounts to a bracket located on the manual transmission. Also, AEM did extensive tests and concluded that the CAI for automatics did not help in producing more horsepower. They will never make one for automatics.
The Injen CAI is more of a "true" CAI in that it mounts behind the bumper, and is completely outside of the engine compartment; unlike the AEM CAI, which sits rather low below the battery. The Injen CAI is made for all models; DX, LX, and EX. Again, no word whether it fits the HX.
The ICEMAN CAI has recently bean released for the 7th gen civic. There is no concrete information to report as of yet, but expect this to be updated in the next version of this FAQ.
3. What is the best CAI?
There are various reasons to choose a particular CAI over another. Check the dyno sheets to see which CAI you prefer. You might chose AEM's CAI based on it's filter location and the fact that they also make a bypass valve for it that has bean tested to prevent your engine from injesting water when going over water that is deep enough to submerge the filter completely. You might chose Injen's CAI because the filter element is under the right headlight and is completely outside of the engine bay. You might also chose the ICEMAN CAI because it is made out of crosslink polyethylene which has the lowest thermal conductivity rating of any single-layered moldable material available on the market today. Then again, you might buy a no-name CAI and be just as happy with it as you would be if you had bought one of the brand name CAI's. The choice is yours.
4. What is a "SRI"?
The term SRI is short for Short Ram Intake. Think of a CAI which has the lower pipe cut off. It allows for better flow to the engine, but it still sucks air in from the engine compartment since that is where the filter is. Sometimes a SRI is also referred to as a warm air intake.
Hey! Look At Me!! I'm a Supporting Member!!
iTrader: (3)
Joined: Aug 2002
Posts: 4,255
Likes: 0
From: NJ
Rep Power: 0 

Originally posted by R3DL1N3
a few guys i know call the short ram intake a "hot air intake" is this term correct? like if i tell someone i have an intake they immidiatly ask "hot or cold air?"
a few guys i know call the short ram intake a "hot air intake" is this term correct? like if i tell someone i have an intake they immidiatly ask "hot or cold air?"
Escaped Convict
iTrader: (30)
Joined: Jun 2001
Posts: 6,450
Likes: 0
From: Westminster, California, US
Rep Power: 368 

wow the FAQ is kinda eh.. wrong.
The term CAI is short for Cold Air Intake. It's premise is to suck in "colder" air from outside of the engine compartment. Because colder air is denser, you end up getting more oxygen into the engine. The O2 sensor sees this extra oxygen, and in turn, the computer adds extra fuel to the mix.
first, there's no o2 sensor on the intake system. thats just the air sensor..
o2 sensors are on the exhaust...
an aftermarket cold air intake.. its purpose is to mainly do two things... bring in more air (which the air sensor will sense, and increase the fuel ratio accordingly) and bring in colder air... which, denser, more oxygen.. as stated...
and more oxygen? means more combustion... which means more power.
The term CAI is short for Cold Air Intake. It's premise is to suck in "colder" air from outside of the engine compartment. Because colder air is denser, you end up getting more oxygen into the engine. The O2 sensor sees this extra oxygen, and in turn, the computer adds extra fuel to the mix.
first, there's no o2 sensor on the intake system. thats just the air sensor..
o2 sensors are on the exhaust...
an aftermarket cold air intake.. its purpose is to mainly do two things... bring in more air (which the air sensor will sense, and increase the fuel ratio accordingly) and bring in colder air... which, denser, more oxygen.. as stated...
and more oxygen? means more combustion... which means more power.
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
Crazygrlinak
Mechanical Problems/Vehicle Issues and Fix-it Forum
3
Oct 8, 2015 05:06 PM
Le Ormz
Mechanical Problems/Vehicle Issues and Fix-it Forum
0
Sep 30, 2015 09:24 AM
Hutch1051
Mechanical Problems/Vehicle Issues and Fix-it Forum
2
Sep 29, 2015 09:20 AM





