Volant CAI
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JK Newbie
Joined: Aug 2007
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Volant CAI
OK just installed a Volant CAI on the spousal unit’s JK. It took all of 20 minutes. 
Fabricating up a “critter/debris catcher” for the bottom of the Volant took another 10 minutes.
The instructions included were pretty simple and anyone should be able to install this CAI with no problems. There were only three issues I had with installing this CAI and all of them were minor.
My instructions for installing the Volant CAI
Loosen the hose clamp closest to the stock box and remove the rubber tube from the stock box.
Remove the hose from the stock box to the valve cover from the stock box side.
Unclamp the four clamps holding the top of the stock box and remove the top half of the stock box, the ari filter and set aside.
Gently, but firmly pull straight up on the bottom half of the stock box and it will come out. It is held in place by three (3) pins on the bottom of the stock box that are pressed into rubber grommets. If a grommet comes out when you are removing the bottom half of the stock box simply put it back in.
Loosen the hose clamp on the throttle body and remove the tube from the throttle body. Take care not to pull it off too far as the air sensor is still attached.
Remove the air sensor by pushing straight up on the orange tab and then gently squeezing the two tabs at the top of the connector. The connector will separate and you can now safely remove the tube.
To remove the air sensor from the tube, use a small screwdriver and gently work it into the opening around the air sensor. Push the screwdriver through the opening until it protrudes inside the tube. Gently pry on the screwdriver until you can start the air sensor in the hole. Once started, the air sensor comes out real easy. Set aside the stock tube.
Insert the air sensor into the new Volant tube and set aside.
Use a 10mm socket to remove the now visible bolt that was under the stock airbox.
The “mod”
To keep critters and larger debris from getting into the airbox, I fabbed up a “critter/debris catcher” for the bottom of the opening. I used a 3-inch to 2-inch rubber reducer for pipe and cut the 2-inch portion off flush. I did just a little trimming to clean up the edges. I inserted a plastic drain catch and glued it in place and clamped the rubber reducer to the bottom opening of the airbox. I removed the center piece from the drain and the rubber grommet. I trimmed one side of the rubber grommet and used it as a rubber washer on the 10mm bolt (see above picture of bolt). Cost for this was about 7 dollars and I got the parts at Home Depot.
With the mod now securely fastened, set the Volant CAI box in place. Use the 10mm bolt and snug down the box. It does not have to be “gorilla tight,” just snug or you run the risk of cracking the airbox.
Using one of the hose clamps provided, clamp the hose connector to the airbox and snug down.
Using one of the clamps provided, clamp the hose connector to the throttle body and snug down.
Slide a hose connector onto both hoses before inserting the tube. I found it easiest to insert the tube into the airbox and then put it on the throttle body. Tighten both hose clamps to the tube.
Insert the air filter into the airbox and snug down using the provided hose clamp.
Re-attach the air sensor connector.
Re-connect the valve cover hose. The hose Volant provided in this kit that runs from the valve cover to the airbox was a little too short for my liking so I just used the old one and added a hose clamp to the airbox side.
Double check all clamps to ensure they are snug and then put on the top of the Volant using the four (4) screws provided.
Start it up and take for a drive.
Both the Spousal Unit and I were impressed with the response – only used the seats of the pants dynamometer. It has a nice little “roar” when you step on the throttle. When you really open it up, it sounds bad to the bone.
It did get up to speed a litte quicker than before and spousal unit said she did not have to use as much “pedal” to keep the JK at speed.
I will eventually fabicrate up a “ram air” tube for the bottom opening of the airbox. But, for now, the “critter/debris catcher” will do.
Enjoy
Russ
Fabricating up a “critter/debris catcher” for the bottom of the Volant took another 10 minutes.
The instructions included were pretty simple and anyone should be able to install this CAI with no problems. There were only three issues I had with installing this CAI and all of them were minor.
My instructions for installing the Volant CAI
Loosen the hose clamp closest to the stock box and remove the rubber tube from the stock box.
Remove the hose from the stock box to the valve cover from the stock box side.
Unclamp the four clamps holding the top of the stock box and remove the top half of the stock box, the ari filter and set aside.
Gently, but firmly pull straight up on the bottom half of the stock box and it will come out. It is held in place by three (3) pins on the bottom of the stock box that are pressed into rubber grommets. If a grommet comes out when you are removing the bottom half of the stock box simply put it back in.
Loosen the hose clamp on the throttle body and remove the tube from the throttle body. Take care not to pull it off too far as the air sensor is still attached.
Remove the air sensor by pushing straight up on the orange tab and then gently squeezing the two tabs at the top of the connector. The connector will separate and you can now safely remove the tube.
To remove the air sensor from the tube, use a small screwdriver and gently work it into the opening around the air sensor. Push the screwdriver through the opening until it protrudes inside the tube. Gently pry on the screwdriver until you can start the air sensor in the hole. Once started, the air sensor comes out real easy. Set aside the stock tube.
Insert the air sensor into the new Volant tube and set aside.
Use a 10mm socket to remove the now visible bolt that was under the stock airbox.
The “mod”
To keep critters and larger debris from getting into the airbox, I fabbed up a “critter/debris catcher” for the bottom of the opening. I used a 3-inch to 2-inch rubber reducer for pipe and cut the 2-inch portion off flush. I did just a little trimming to clean up the edges. I inserted a plastic drain catch and glued it in place and clamped the rubber reducer to the bottom opening of the airbox. I removed the center piece from the drain and the rubber grommet. I trimmed one side of the rubber grommet and used it as a rubber washer on the 10mm bolt (see above picture of bolt). Cost for this was about 7 dollars and I got the parts at Home Depot.
With the mod now securely fastened, set the Volant CAI box in place. Use the 10mm bolt and snug down the box. It does not have to be “gorilla tight,” just snug or you run the risk of cracking the airbox.
Using one of the hose clamps provided, clamp the hose connector to the airbox and snug down.
Using one of the clamps provided, clamp the hose connector to the throttle body and snug down.
Slide a hose connector onto both hoses before inserting the tube. I found it easiest to insert the tube into the airbox and then put it on the throttle body. Tighten both hose clamps to the tube.
Insert the air filter into the airbox and snug down using the provided hose clamp.
Re-attach the air sensor connector.
Re-connect the valve cover hose. The hose Volant provided in this kit that runs from the valve cover to the airbox was a little too short for my liking so I just used the old one and added a hose clamp to the airbox side.
Double check all clamps to ensure they are snug and then put on the top of the Volant using the four (4) screws provided.
Start it up and take for a drive.
Both the Spousal Unit and I were impressed with the response – only used the seats of the pants dynamometer. It has a nice little “roar” when you step on the throttle. When you really open it up, it sounds bad to the bone.
It did get up to speed a litte quicker than before and spousal unit said she did not have to use as much “pedal” to keep the JK at speed.
I will eventually fabicrate up a “ram air” tube for the bottom opening of the airbox. But, for now, the “critter/debris catcher” will do.
Enjoy
Russ
JK Enthusiast
Joined: Aug 2007
Posts: 135
Likes: 0
From: Chicago
I just installed my Volant CAI today. Thanks for the writeup. I did notice that the bottom of the box was rubbing on the upper radiator hose. So I removed the box and placed one of the rubber grommets from the old box in between the Volant box and the fender where the 10mm bolt is shown on your writeup. This seemed to bring the box up just enough that it was close but no longer rubbing the upper radiator hose. I may have to make a bracket to hold up the front of the box if it starts to rub on the hose in the future. I haven't driven it enough to notice a diffrence yet and can't notice any sound changes over the factory box. I will update this in a couple days and post if there were any changes in mpg or throttle response.
JK Jedi
Joined: Oct 2007
Posts: 5,537
Likes: 0
From: Colorado
Maybe check to see when Volant will come out with their JK snorkle. It should be compatable with the Volant intake if it is like the TJ version.
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JK Enthusiast
Joined: Aug 2007
Posts: 135
Likes: 0
From: Chicago
After driving around all morning I did notice a more aggressive sound and while I didn't notice any increase in mpg I didn't notice a decrease either. Which is pretty good since I was revving it up frequently to hear the rush of air coming in. No noticible acceleration or performance gains but I was in local stop and go traffic.
JK Newbie
Joined: May 2008
Posts: 33
Likes: 0
From: Barrington,IL
installed
well ...... birds chirping ..... cold air blowing ... wife and kids sleeping (important fact - wife was asleep). Installed - was a cake walk! ... short of that damn little sensor! getting the grommet installed back into the volant.
Not too bad with no coffee! ...
Now the challenge .... how can one test MPG while at the same time testing pickup and sound? ... seems to me that is on both ends of the spectrum.
Borla Dual exhaust is going in this week - and the throttle body spacer ...
Not too bad with no coffee! ...
Now the challenge .... how can one test MPG while at the same time testing pickup and sound? ... seems to me that is on both ends of the spectrum.
Borla Dual exhaust is going in this week - and the throttle body spacer ...
JK Super Freak
Joined: Feb 2008
Posts: 1,073
Likes: 0
From: Bartlett IL
Are you sure it's on there right? I can't even focus my eyes without coffee!
Have you read this thread?
https://www.jk-forum.com/forums/jk-write-ups-39/results-848/
Have you read this thread?
https://www.jk-forum.com/forums/jk-write-ups-39/results-848/