disadvantages of cold air intake?

[ToyTun21]

I was think of getting a cold air intake to gain a little HP and maybe mileage. Will I lose anything by adding this other than $? Are the cold air intakes susceptible if going through deep water? I mean if water splashes around the engine will that get to the filter.

[v8Toilet]

Originally Posted by ToyTun21

I was think of getting a cold air intake to gain a little HP and maybe mileage. Will I lose anything by adding this other than $? Are the cold air intakes susceptible if going through deep water? I mean if water splashes around the engine will that get to the filter.

Disadvantages are,

Not a true cold air intake except for Volant, stock already is
More intake noise
Less low-end torque making everyday driving in traffic less enjoyable
Cotton filter lets more dirt in
May be some warranty issues
Truck will feel slower than stock or at least mine did!!!!

[DevinSixtySeven]

Originally Posted by ToyTun21

Are the cold air intakes susceptible if going through deep water? I mean if water splashes around the engine will that get to the filter.

it will get to the filter even quicker than the stock setup, unless there's a shield around the filter area like the fipk, even then don't go messing with deep water. no snorkel yet for a tundra, a couple guys have ideas up their sleeves, but before you hunt for either, make sure of what you want--performance (dubious) or capability...

[Jack Burton]

Originally Posted by ToyTun21

I was think of getting a cold air intake to gain a little HP and maybe mileage. Will I lose anything by adding this other than $? Are the cold air intakes susceptible if going through deep water? I mean if water splashes around the engine will that get to the filter.

Alohas,

Ask yourself what you want to do w/the truck....

Do you want to be a freeway flyer ?
Do you need to tow or need lower rpm power ?
Do you have bigger than stk height tires ?

If you want a freeway flyer, then the aftermarket intakes will give you more power over 3000rpms and would be useful. You will lose some low end push off the line.

If you need lower rpm power or have bigger tires, then you'd be better off going w/a modified stk airbox. Get an aftermarket filter. TS member Tremo makes a RAPS kit that will provide colder outside air to the airbox.

I have the K&N FIPK intake w/a filter wrap, JBA Y-Pipe and a Spin Tech Sportsman Street muffler dumped and dyno'd @ 205 hp and 272 lbs. of tq. I'll be doing another dyno run w/the stk airbox vice the K&N intake on 11/15/03.
Check my pix for the dyno graph.....

JB

[cowmasher03]

.

The TRD Performance Air Intake System improves both horsepower and torque. Dyno testing measured the following power improvements at the rear wheels:
Horsepower Torque
5.7L V8 +8.0hp @ 5,600 rpm +7.5 ft-lbs torque @ 5,600
4.7L V8 +4.3hp @ 5,100 rpm +4.5 ft-lbs torque @ 5,100
Individual performance improvements may vary depending on test conditions and vehicle configuration


Note: 2008 model year applicability pending emissions approval.



TRD Performance Air Intake
5.7L V8 PART # PTR03-34070

4.7L V8 PART # PTR03-34072

PLEASE INDICATE WHICH ENGINE YOU HAVE UPON ORDERING



does that help????????? there is a ca carb# for the k&n also probally the same power increse. to awencer the water question get a snorkel kit for the jeeps and convert it for the tundra if you like water that much, yes when you suck water you get BIG problems

[Jetes03tundra]

im actually tempted to take mine off once to see if i noticed anything or not...

[Burger Steak & Eggs]

Those types of differences you need to use a dyno or dragstrip to notice.

[bentarm13]

My opinion: Unless your a proffesional driver or vehicle tech, your not gonna notice any power difference. I got the K@N CAI system and I love it. The sound is incredible. I will tell you I notice a horsepower difference, but I am pretty sure I am saying it because I can hear it and not feel it. Mileage difference has not been noticable.

[wirelessf]

Open air filter intakes like the K and N, airaid, etc suck in hot air from the engine bay. This is why it probably loses torque at the low end, like if you were to acclerate from a stop light. One at the freeway at high speeds, it starts sucking in cooler air because of the cooler air entering in the engine bay.

[kathyricks]

Originally Posted by ToyTun21

I was think of getting a cold air intake to gain a little HP and maybe mileage.

Since 1975 every Toyota truck has come standard from the factory with a cold air intake.

[Hi Volt]

Originally Posted by kathyricks

Since 1975 every Toyota truck has come standard from the factory with a cold air intake.

You are right. The trick is to get all the air that teh engine wants readily available into the air filter/airbox. See the post on this forum " Stock Airflow Numbers and Mod " it is a mod that works and only sets you back about $23.00.

[Puffnstuff]

Well I didn't lose any low end with my injen cai and it makes a very mean sound. However if I had it to do over again I would've saved my money for something else. My mileage did not improve after I installed it and fluctuates like it always has with fuel blend playing the greatest part in my mpg's.

[elrod94]

what did you mean when you said fuel type affects your mileage? are you saying that higher octane gas gets you better mileage?

thanks!

[Hi Volt]

Higher octane fuel can improve mileage for the folllowing reason. You are less prone to "ping" as octane rating increases. The Tundra engine uses detonation sensors to detect ping, when detected the timing is retarded. Less ping keeps timing high which results in better power and fuel economy. Some drivers notice the gain and others don't. A driver that putts around and doesn't make the engine work will most likely not see any difference. On the other hand, a driver that makes the engine work whether towing, hill climbing or other should see gains over lower octane fuels under the same conditions. Another key note in fuel blend is oxygenates which result in cleaner emissions but less energy from the fuel, i.e. less power and economy. The same holds for "winter" fuels that contain alcohol to reduce freezing, this has a similar effect as oxygenates.

[Puffnstuff]

Less btu's per gallon means more gallons used to perform the same work as a higher quality fuel. I always run 87 octane but the blend varies depending on the time of year.