Cold Air Intake my A**
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RE: Cold Air Intake my A** - 3/6/2007 7:08:58 AM
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imnothot02
Posts: 2245
Joined: 7/18/2005
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haha nothing realy, makes people feel beter, you should see they dyno curve, there is about .5 hp gain, one benifit is the air moves more freeley, in the tube no baffling, this is known as one of the most expensive dollar per hp out there...be cheaper per hp to bore out the whole motor...
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---Travis---
2002 Chevy Trailblazer LT 4.2
1996 Subaru SVX LSi AWD 3.3 L Flat 6 (Highway car)
1987 Grand Am 2.5 L Inline(Just keeps going and going...)
Can't forget the work van 04 3500 EXPRESS lol
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RE: Cold Air Intake my A** - 3/6/2007 10:27:29 AM
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HankL
Posts: 2719
Joined: 8/20/2005
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The "cold air intake" aftermarket business is highly profitable.
Mark ups are in the 100-200% range.
If vehicle owners began checking their
MAP sensor (manifold absolute pressure)
and IAT sensor (intake air temperature)
before and after the modification
this whole business would collapse.
But 99% of vehicle owners don't check the MAP or IAT.
They just hear the new noise,
and are happy,
are usually extra happy
if the aftermarket gizmodo is brightly colored.
This is a shame
because there are ways to spend $200-300
that will improve both acceleration and fuel economy.
As far as the common question:
does it matter if the intake materials are conductive metal versus insulating plastic?
The short answer is: it only matters at engine idle where air flow is slow and times for heat transfer are long. At full throttle and rpms above 2000 the airflow is fast enough that the time spent travelling through the intake does not allow for much heat transfer.
Want to know how to calculate this for yourself
and are not afraid of math?
http://www.hrs-spiratube.com/en/resources/heat_transfer_fundamentals_01_05.aspx
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RE: Cold Air Intake my A** - 3/6/2007 10:41:02 AM
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rtkota5point9
Posts: 892
Joined: 11/13/2006
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Well if you get a REAL CAI then it does help. Anything with the filter under the hood isn't gonna help. It's sucking hot air. My filter is right behind the bumper directly behind the foglight. That's about as far away from engine heat as you can get. The air IS gonna get heated by the tube it's flowing through. But if the air you're sucking is ambient air (70*-100*) and is cooler before it goes through the tube, it's still gonna be cooler when it reaches the intake manifold than if the air was sucked from beneath the hood (200*). Factory airboxes are WAY better than most aftermarket "cold" air intakes. The engineers at the factory didn't spend all that time designing the intake to suck air from the fender, hood, or some other location outside of the engine bay just for shits n' giggles. The only disadvantage of factory intakes is air flow. They are usually pretty restrictive. So if you get an aftermarket intake, and suck the air from outside the engine bay, you are most certainly going to see an increase in power. Every 10* temp change is equal to 1HP! So if you're cooling the air at the manifold by 50*-100*, that's 5-10HP. Doesnt seem like a whole lot, but a true 5-10Hp is quite a bit, and it's a lot more when combined with other aftermarket mods.
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GOT BOOST?
Kenne-Bell Supercharged, SCT Tuned 99' R/T
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RE: Cold Air Intake my A** - 3/6/2007 11:38:12 AM
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Twiztid
Posts: 354
Joined: 8/30/2006
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while it is called a CAI, the only purpose is not to just suck cooler air. It is to suck a larger volume of less turbulant and hopefully cooler air. If you live in the desert at 120 (havasu is hot as f*ck) then pulling cold air is not going to happen, but you can still get more air and due to the design of the intake being just a tube without bends and ribs and such, you will feel a difference.
Dyno charts don't lie ;)
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99' Dakota 4X4 Single Cab 5.2L V8
Rancho RS5000 Shocks
Poly Bushings
Custom CAI w/K&N filter
Flowmaster 50 series Single 3" exit
Modified 50mm TB
Transgo Shift Kit
32x11.5x15's
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RE: Cold Air Intake my A** - 3/6/2007 2:34:59 PM
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2000Dakotadriver
Posts: 72
Joined: 4/27/2006
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I bought my "CAI" off of ebay for less than 40 dollars shipped to me. The whole setup looks alot like the one that virused put on his truck, except that my filter is not as long, and there is no air hat it goes directly in the the throttle body. Yes i knew right off the bat that it is suking air almost straight off the manifold but I wanted to try it for 40 bucks I didn't have much to lose. When i took it for a drive and romped on it two things happened: I liked the new sound, and there was a fairly significant gain in how much harder the truck pulled. I plan on addressing the fact that I don't have a heat shield next to the filter and I also plan on wrapping the tube with header wrap or somthing like it. But my $40 intake has definitly earned its keep to stay on my truck.
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2000 Dakota 4.7
Cold Air Intake (or lukewarm intake)
TIG welded Aluminum Bed rack (made it myself)
One-million candlepower Lightforces
Pioneer deck, Kicker Speakers
Be a thermostat and not a thermometer.
http://www.cardomain.com/ride/23343
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RE: Cold Air Intake my A** - 3/6/2007 2:40:39 PM
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rtkota5point9
Posts: 892
Joined: 11/13/2006
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quote:
ORIGINAL: 2000Dakotadriver
When i took it for a drive and romped on it two things happened: I liked the new sound, and there was a fairly significant gain in how much harder the truck pulled.
The sound made your mind believe it was pulling harder. Even with 5-10hp gain from a TRUE CAI, you wouldnt be able to tell by the seat of your pants. Only a Dyno would show an increase like that.
_____________________________
GOT BOOST?
Kenne-Bell Supercharged, SCT Tuned 99' R/T
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RE: Cold Air Intake my A** - 3/6/2007 2:48:56 PM
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rtkota5point9
Posts: 892
Joined: 11/13/2006
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maybe
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GOT BOOST?
Kenne-Bell Supercharged, SCT Tuned 99' R/T
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RE: Cold Air Intake my A** - 3/6/2007 3:33:56 PM
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BoeingMan
Posts: 147
Joined: 2/26/2006
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Reread the title to your post...you don't want to walk through certain parts of town and say that out loud.
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2000 4X4 4.7L V8 Red Club Cab Dak Sport (hauls stuff)
2002 Triple Black Z51 6Speed Corvette Roadster (hauls ass !!)
2001 Blue Saphire Pearl w/Silver Stripes Viper GTS (will spank your ass)
1980 Black Triumph Spider
1973 Piper Cherokee 140
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RE: Cold Air Intake my A** - 3/6/2007 3:57:31 PM
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DevilDog17
Posts: 133
Joined: 1/19/2007
From: Lee's Summit, Missouri
Status: offline
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rtkota5point9 can you post a pic of your intake. You said it is behind the foglight. I am very interested to see how it looks and how it is designed. IGNORE I SAW THE PHOTO GALLERY
< Message edited by DevilDog17 -- 3/6/2007 4:08:30 PM >
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1999 Dakota 4x4 318
Flowmaster 40 Series
Crane TBS
Summit Racing Cap, Rotor, Wires
Accel Supercoil
CAI
Horsepower is how fast you hit the wall.
Torque is how far you push the wall.
-Unknown
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