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Author Topic: Cold Air Intake Back to Topics
wiskeyoutpost
Rookie Author
Orange County

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Message Posted: Mar 31, 2014 1:15:29 PM

Have you installed a cold air intake kit for your vehicle? Most manufacturers (mine is a K&N) have documented results of higher fuel economy and more HP (horse-power) I do feel more power, but I think that I am now driving with a heavier foot, so the mileage is about the same. I would like other folks opinion on this. Regards, Wiskey
REPLIES (newest first) Post a Reply
dontuknowOH
Champion Author Ohio

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Message Posted: Jan 22, 2015 7:01:41 AM

Anyone that has shopped around a lot for bargain merchandise or items for a project, ETC. They probably noticed somewhere savings on items called refurbished, or remanufactured.

That tells Me some OEM didn't get it quite right the first time around. Perfection doesn't come easy, like one sour potato in a fresh bag of potatoes purchased. "Opp's"! "Say What's"! and "What did you say"? Those phrases are common in the real world still today.

I think OEM tinker, but often call it testing, that's why they offer warranties, and not use crystal balls. Maybe Oh Well!..... HAGD1
MertieMan
Champion Author Lexington

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Message Posted: Jan 22, 2015 5:05:59 AM

Why do you and everyone else have to mess with an engine after it comes from the factory?
GrumpyCat
Champion Author Alabama

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Message Posted: Jan 21, 2015 5:09:34 PM

On a fuel injected gasoline engine reduced intake restriction does nothing for anything less than full throttle. The engine needs X amount of air and always adds Y amount of fuel for any given Z amount of power. Less restriction in air filter is met with more restriction at the throttle plate for exactly the same amount of fuel and air as before.

K&N is selling snake oil. You are far better off with a high quality paper air filter keeping the air clean than an expensive troublesome oily see-through dirt-passer from K&N.
dontuknowOH
Champion Author Ohio

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Message Posted: Jan 21, 2015 4:28:55 PM

Any combustion expansion/pressures that don't ever reach the engines piston rings, that would be a useless ICE engine. I'll go with hoopitup2000 explanation as an engine's preference.

There are a lot of other variations to consider for each engines HQ operational use >>>. Economy or full out performance.

I use both, a colder air intake during Summer, warm ambient air filtered during the other Seasons.
roadrunner7669
Champion Author Florida

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Message Posted: Jan 21, 2015 4:21:42 PM

yes
hoopitup2000
Champion Author Virginia

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Message Posted: Jan 21, 2015 6:22:33 AM

Cold air intake=better performance
Warm air intake=improved MPG's
Sugarshaneo7
Veteran Author Michigan

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Message Posted: May 11, 2014 8:31:21 PM

no idea.
outlaw329
Champion Author Austin

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Message Posted: May 2, 2014 9:44:07 PM

Have it on my 95 YJ Wrangler and there is more power and about 1 mpg more.
arnerator
Champion Author Seattle

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Message Posted: May 2, 2014 9:41:15 PM

Never heard of it
usmc5home
Rookie Author Pennsylvania

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Message Posted: May 2, 2014 4:55:07 PM

Nope
Nuzan
Champion Author Nevada

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Message Posted: May 2, 2014 2:09:46 PM

No
Rob655321
Rookie Author Virginia

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Message Posted: Apr 23, 2014 12:19:37 PM

I use the K&N air filter that fits the stock air box on my car. I detect more HP and a better exhaust sound, not sure about a gas mileage increase.
drgeeforce
Veteran Author Los Angeles

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Message Posted: Apr 21, 2014 7:30:40 PM

I used to have a '67 Chevelle with a short snorkle sucking hot air from the engine bay. When I ducted air from the grille I got a small Ram-air effect and got very little increases in HP. The carburetor wasn't tuned to compensate for this. When I ducted from the wheel well I lost HP probably because of a Venturi effect.
Awing1
Champion Author Ontario

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Message Posted: Apr 19, 2014 4:19:47 PM

No.
sanderstheparro
Champion Author Wilmington

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Message Posted: Apr 19, 2014 3:16:45 PM

"....Then it's oxidized during combustion and then exhausted. It never gets a chance to reach the piston rings...."

----------------

What a imaginative explanation and totally BS. You always have blowby through the piston rings. You never have a tight seal. That's why vehicles have PCV valves. A certain amount of air and fuel mix is pulled down by the piston and slips through the piston rings into the crankcase. This escaping gas is called blow-by -- and it's unavoidable.

[Edited by: sanderstheparro at 4/19/2014 3:17:41 PM EST]
sanderstheparro
Champion Author Wilmington

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Message Posted: Apr 19, 2014 3:00:54 PM

Cold air intake only increases horsepower. It does NOT!!! increase fuel economy. How many times must this point must be made? Cold air is heavier and therefore air contains more oxygen and requires more fuel to prevent a lean condition. Likewise, cold air intake makes it easier for your car to breathe so it doesn't work as hard.

Manufacturers who advertise better fuel economy with their cold air intake systems will often say you get better fuel economy because they want to sell you their product and they know you're a sucker who beleive anything.
dev9069
Rookie Author New Jersey

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Message Posted: Apr 19, 2014 12:50:45 PM

no
drgeeforce
Veteran Author Los Angeles

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Message Posted: Apr 19, 2014 12:38:46 PM

CAI can benefit most diesels as the intake is not linked to a throttle. Throttles limit stoichiometric intake by using more fuel to achieve a richer mixture, where diesels are at default a lean burn. Gasoline systems are regulated by the mass air intake sensor, so a restrictive air cleaner will cause the throttle to use less gas, reducing power overall.
hoopitup2000
Champion Author Virginia

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Message Posted: Apr 17, 2014 6:28:46 AM

I always thought;
Cold air intake= Better performance
Warm air intake= Better MPG's
MertieMan
Champion Author Lexington

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Message Posted: Apr 17, 2014 5:19:50 AM

I don't mess with it and mine is purely stock.
twt
Champion Author Virginia Beach

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Message Posted: Apr 17, 2014 2:49:33 AM

No. Just another scam.
the1roadhog
Champion Author Atlanta

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Message Posted: Apr 16, 2014 7:02:21 PM

nope
MNJ2
Champion Author Minnesota

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Message Posted: Apr 16, 2014 4:41:34 PM

In Minnesota, I'm sick and tired of cold air intake. Don't want anymore of it. :)
contiki
Champion Author Ontario

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Message Posted: Apr 16, 2014 7:20:16 AM

Never......
deant99
Champion Author Ontario

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Message Posted: Apr 13, 2014 9:00:48 PM

no
contiki
Champion Author Ontario

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Message Posted: Apr 11, 2014 7:13:18 AM

never...........
mybigtruck
Champion Author San Jose

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Message Posted: Apr 10, 2014 12:15:18 PM

Nope. You feel more responsiveness since there's less of a restriction on the intake...ie. less dirt filtering.
jimmy544
Champion Author Boston

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Message Posted: Apr 10, 2014 8:55:31 AM

None of these systems work very well unless you have some kind of feedback on you gas consumption. It is difficult to tell if there are difference unless you are so equipped.
Floridaman2013
Champion Author Florida

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Message Posted: Apr 10, 2014 8:17:51 AM

Not worth the cost of the system. I use the factory system and sometimes just switch the air filter with a HP model. If on off roads or dusty conditions, i will use the paper filter. Cheaper to change.
hoopitup2000
Champion Author Virginia

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Message Posted: Apr 10, 2014 6:39:01 AM

Not worth it. Grill blocking is a much cheaper option & it works!!
thirstyV8suv
All-Star Author Columbus

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Message Posted: Apr 9, 2014 8:53:47 PM

at $250+ for one of those CAI systems are you really saving money? Let's assume you get 0.5 more miles per gallon (unlikely but let's assume). You'd have to drive quite a bit to recoup the cost of the system. I have one on an old Jeep of mine but it's for performance purposes as part of a larger overall tune and nothing to do with fuel economy.
luvmyrv
Champion Author Winnipeg

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Message Posted: Apr 9, 2014 2:37:11 PM

no
santa_banta
Rookie Author San Jose

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Message Posted: Apr 9, 2014 10:34:08 AM

looking into it
Vin63
Champion Author San Bernardino

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Message Posted: Apr 9, 2014 9:41:34 AM

It really comes down to driving behavior.
ricebike
Champion Author New Jersey

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Message Posted: Apr 6, 2014 12:06:24 PM

Cbob says, "I will not be buying one , when a paper filter for 10 bucks keeps my intake cleaner than a 100 dollar filter , the paper wins . "

i agree. i saw a couple of online sites proving that the paper wins over a pre-oiled soaked fiber filter
Dinker
Champion Author Illinois

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Message Posted: Apr 6, 2014 11:50:15 AM

looking into one
dontuknowOH
Champion Author Ohio

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Message Posted: Apr 6, 2014 10:38:07 AM

My truck has an OEM cold air intake with standard paper element filter. The EFI gets is ambient air from the outer fender well area, free from engine compartment/radiator expelled heat and heat from the exhaust system.

The filter air box does heat up with under-hood temps which is normal for economy but a little stressed for extremely hot Summer days. Being I have never needed to work the engine to it's extreme energy load output since I have owned the vehicle(no problems).

I do know that I can get better economy during weather below 60* F if the incoming air was removed from the fender well area an then picked up with the warmer under-hood sources of warmer temps during Spring, Fall, and especially Winter. Once the engine reaches normal operation temps at anytime the EFI system does decent balance for any normal type of operational service.

I can't fault my filter system for my requirements yet, but for economy the air supply is too cold at times, for top performance it could be improved upon. That would be mods to the location or switching over to another air-box location, to bring up total performance image(meaning more mods) needed also. Just not for my purposes, no severe load duty use planned.
OilerFan
Champion Author Tulsa

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Message Posted: Apr 6, 2014 9:54:25 AM

The cold air intake doesn't cost that much.
WEPSMAN
Champion Author South Dakota

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Message Posted: Apr 6, 2014 9:20:30 AM

Even if you do get better mileage, how long will it take to make up for the price of the cold air intake? Are you still going to have the vehicle then? Is it really worth it?
dassfg
Champion Author Fort Worth

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Message Posted: Apr 6, 2014 8:28:13 AM

Never put one on my truck but know those who have. Seems like a lot of money.
tklsr
Champion Author Akron

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Message Posted: Apr 6, 2014 7:50:35 AM

yawn
contiki
Champion Author Ontario

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Message Posted: Apr 6, 2014 7:29:53 AM

No never...........
Houckster
Champion Author Atlanta

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Message Posted: Apr 5, 2014 1:43:21 PM

What I was trying to point out is that just about any air filter you use, K&N or conventional, will protect an engine sufficiently for it to last well beyond the number of miles most people will drive.

I expect my engine will last 200-300K just like yours though at the rate I'm driving, it's academic.
CactusBobs
Champion Author Arizona

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Message Posted: Apr 5, 2014 12:17:11 PM

Houckster: all i can say is enjoy your k&n .
I will not be buying one , when a paper filter for 10 bucks keeps my intake cleaner than a 100 dollar filter , the paper wins .

50K is no mileage to find out whats going on , you could have gone half that with no filter and still had the same result . engine wear is slow and a good filter makes the difference of an engine lasting 100k or one that lasts 300k

In today's world any well made (sorry Chrysler) engine lasts at least 200k ,even with not the best care.

A K&N has no place under my hood , if i find one there i sell it on e bay.

like i said enjoy "your" K&N.

[Edited by: CactusBobs at 4/5/2014 12:18:31 PM EST]
Houckster
Champion Author Atlanta

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Message Posted: Apr 5, 2014 11:10:03 AM

CACTUSBOB writes: So what do you get for your 100 bucks........premature engine wear !

gota love marketing !!!
______
Not necessarily. While K&N filters don't stop as much dirt as conventional filters, that doesn't mean the dirt that gets past the filter will cause wear.

Even K&N filter will stop dirt that's not visible to the human eye and that means we're dealing with microscopic particles that travel in the current of air that constantly gains speed as it travels through the engine. By the time the dirt particle reaches the combustion chamber, it is traveling hundreds of miles per hour. Then it's oxidized during combustion and then exhausted. It never gets a chance to reach the piston rings.

I've had a K&N filter installed for over 50K miles and my engine burns no oil. Oil consumption is on the order of about 1 ounce every 12.5K miles.

[Edited by: Houckster at 4/5/2014 11:11:29 AM EST]
MertieMan
Champion Author Lexington

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Message Posted: Apr 5, 2014 8:43:22 AM

Most of this so called add on junk causes nothing but troubles in one way or another.
jes
Champion Author Pennsylvania

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Message Posted: Apr 5, 2014 8:18:32 AM

No
pghbill
Champion Author Pittsburgh

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Message Posted: Apr 3, 2014 12:29:38 AM

never tried
dontuknowOH
Champion Author Ohio

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Message Posted: Apr 2, 2014 11:18:27 PM

On a 90+ degree day my engines can use a cooler breath of intake air, considering what the under-hood temps are, even a bit of moist air perks their response noticeably, over the normal rpm ranges.

Any time below 70 F degrees I have never found a benefit, only with heavy upper range to WOT use for total performance and not economy.
PatAZ
Champion Author Tucson

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Message Posted: Apr 2, 2014 4:43:34 PM

I've heard too much bad about doing it.
twt
Champion Author Virginia Beach

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Message Posted: Apr 1, 2014 4:31:09 AM

Bad, idea.
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