What is CAI
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,079
From: Guelph, Ontario
Cold Air Induction, such as the Vararam unit.
A lot of intake makers misuse this term though. The ones which just use a big open air filter that sits in the hot engine bay, cannot be called cold air induction, IMO. They aren't drawing in cold air at all.
A lot of intake makers misuse this term though. The ones which just use a big open air filter that sits in the hot engine bay, cannot be called cold air induction, IMO. They aren't drawing in cold air at all.
Former Vendor
Joined: Aug 2001
Posts: 5,798
Likes: 50
From: Dallas & Chicago TX & IL
Yeah, but you add the Vette-Air, then what?
We've used the Vette-air we great success. Don't know who Vette-Air is? Check the website below, see which system has achieved fast times.
I speak the truth…can the rest handle the truth?
www.vette-air.com
Thanks,
Carlos
Pro
Joined: Sep 2000
Posts: 678
Likes: 0
From: St. Augustine FL
Alhtough......come to think of it, the term Cold Air is also subject to interpretation. It really should be Outside Air Induction, which if rammed, would be of ROAI
Just tryin' to keep the conversation lively.
Pro
Joined: Sep 2000
Posts: 678
Likes: 0
From: St. Augustine FL
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Melting Slicks
Joined: Jul 2007
Posts: 2,146
Likes: 31
From: Minot North Dakota
St. Jude Donor '12-'13-'14-'15, '21
You know with this cold air intake business I always wondered why general motors does not do this from the factory. Almost everyone puts in a CAI kit and different exhaust. More air in, more exhaust out. I just can't figure out why they don't do it up front. Seems it would be less costly if they did it as a standard feature than all of us going after market to get it done. Go figure
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,079
From: Guelph, Ontario
The main reason they don't do it is because of the increased risk of hydrolock if someone drove through a deep puddle. The average person isn't smart enough to avoid super deep puddles, but those of us with Vararams and other similar systems are smart enough to slow right down when driving through deep standing water and if we know the front end is going to be completely submerged, we would completely avoid it. You'd be surprised how many people out there aren't smart enough to know this, and think that they can drive their car in 2 feet of water.
Instructor
Joined: Jun 2005
Posts: 219
Likes: 0
Read the info on this link.
http://secure-order-server.net/caull...=6270663_19055
This works and no fear of Hydrolock
Drifting
Joined: Jul 2003
Posts: 1,789
Likes: 0
IMhO...any air temp below engine operating temp is cold air. The colder the better is the ultimate objective.
It's more about Marketing termonolgy of an aftermarket product. Whether the breather source is from oem airbox, forced, ram, turbo, intercooled whatever...it's all cold air. The changes might be design of air flow methodology and filter element/ placment.
Design "theory" plays huge in CAI with enviornmental conditions being the conundrum. Some brands do better than others in the rain/humid areas while others are better in more arrid enviorns. User data in one's area speaks volumes towards a products success/failures.
It's more about Marketing termonolgy of an aftermarket product. Whether the breather source is from oem airbox, forced, ram, turbo, intercooled whatever...it's all cold air. The changes might be design of air flow methodology and filter element/ placment.
Design "theory" plays huge in CAI with enviornmental conditions being the conundrum. Some brands do better than others in the rain/humid areas while others are better in more arrid enviorns. User data in one's area speaks volumes towards a products success/failures.
Race Director
Joined: Oct 2004
Posts: 10,516
Likes: 2
From: Virginia Bch VA
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06
Bob,
Cold Air Induction.
As delivered from the factory the Vette air intake is within the engine compartment (ie Hot Air)
The CAI draws air from outside the engine compartment. Maybe not Cold, but a heck of a lot cooler than what's inside.
Cold air is more dense (read that as more O2) and burns mo betta resulting in more RHWP & TQ.
Cold Air Induction.
As delivered from the factory the Vette air intake is within the engine compartment (ie Hot Air)
The CAI draws air from outside the engine compartment. Maybe not Cold, but a heck of a lot cooler than what's inside.
Cold air is more dense (read that as more O2) and burns mo betta resulting in more RHWP & TQ.
Former Vendor
Joined: Aug 2001
Posts: 5,798
Likes: 50
From: Dallas & Chicago TX & IL
Bob,
Cold Air Induction.
As delivered from the factory the Vette air intake is within the engine compartment (ie Hot Air)
The CAI draws air from outside the engine compartment. Maybe not Cold, but a heck of a lot cooler than what's inside.
Cold air is more dense (read that as more O2) and burns mo betta resulting in more RHWP & TQ.
Cold Air Induction.
As delivered from the factory the Vette air intake is within the engine compartment (ie Hot Air)
The CAI draws air from outside the engine compartment. Maybe not Cold, but a heck of a lot cooler than what's inside.
Cold air is more dense (read that as more O2) and burns mo betta resulting in more RHWP & TQ.
Thanks,
Carlos
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,079
From: Guelph, Ontario
Today I proved one of the reasons why the Vararam works so well, it lowers the IAT very quickly. It was about 85 degrees here, and we were playing around in HP Tuners, and with the engine shut off hot, my IAT would spike up to 140 degrees! But within about a minute's worth of driving, it would be down around 90 degrees or so, thanks to the Vararam!
Former Vendor
Joined: Aug 2001
Posts: 5,798
Likes: 50
From: Dallas & Chicago TX & IL
Today I proved one of the reasons why the Vararam works so well, it lowers the IAT very quickly. It was about 85 degrees here, and we were playing around in HP Tuners, and with the engine shut off hot, my IAT would spike up to 140 degrees! But within about a minute's worth of driving, it would be down around 90 degrees or so, thanks to the Vararam!
The Vette-Air does the same thing but a little sooner since the air travel distance is not as long. So yes, getting outiside air does help!
Thanks,
Carlos
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,079
From: Guelph, Ontario
Yep, not to single out Vararam, but any good cold air induction system will do wonders for lowering the IAT very quickly on these engines. It's amazing how quickly the IAT rises due to heat soak, once you shut off the engine. And so you want it to drop down as quickly as you can.