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Home > Performance Mods > Intakes > intake questions....

intake questions....

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WhooKid
New York, US
  • Oil Changer
I don't know too much about CAIs but I have read about them here on the site, but I still have some questions...

Do they increase or decrease miles per gallon?

How much horsepower will it add to my 07 tc with everything stock under the hood? (if it goes by specific brand, assume its an injen)

And speaking of Injens, why are they so popular with tc owners when you can get one for much cheaper, like this....

http://www.customstore44.com/coldair.htm

obviously they are better, but how?

Just trying to learn as much as I can before I get one, I just want to increase the hp a little bit and I figure this is the best way.

Thanks.

[#] Aug 11, 2008 10:50pm
LBTC
Long Beach
California, US
  • Detailer
I would think your MPG's decrease because you're mixing denser air and causing a bigger combustion thus burning a little bit more fuel, I know it's been discussed before, but I could be wrong.

INJEN is popular with TC because of the quality and performance it brings. You get what you pay for. I've looked at e-bay and TENZO-R intakes, but see many people having problems with them; either with Sensor fitment or check engine light. Myself, I'm saving for an INJEN CAI.

No it won't increase HP, it'll only free up what you already have. It'll increase your pick-up speed (i think) Only Forced Induction will give you an increase on HP. Header, pulley, intake, exhaust only free up HP on your otherwise restricted engine. Correct me if I'm wrong.

[#] Aug 11, 2008 11:01pm
WhooKid
New York, US
  • Oil Changer
so it burns more gas, doesn't increase hp, yet people still dish out a few hundred for it? Is its only purpose to help your engine breathe (which I thought meant a few more ponies, at least) and to make it sound cool?

[#] Aug 11, 2008 11:11pm
Kurisutaira
  • Godlike Advisor
read this....
http://clubsciontc.com/in...d=11687&page=1#138102



"This is what happens when an unstoppable force meets an unmovable object"
[#] Aug 11, 2008 11:17pm
caldwell246
New Jersey, US
  • Window Washer
An air intake is supposed to increase mpg and wheel horsepower. Air intakes also give the engine a nice, louder sound. I have a K&N Typhoon short ram intake, but I have not noticed any change in the mpg. The car has a tiny tiny bit more pick up from the line, but not very noticeable. K&N diagnostics says that the car will have about 8 more horsepower at around 5k rpms, but again it is not very noticeable. I bought it solely for the sound quality. It really is not worth getting an intake if you are looking for mpg or hp increase. A supercharger will noticeably increase hp though. (And an air intake might make you have less mpg since you rev the engine too high all the time since it sounds sweet haha).

[#] Aug 11, 2008 11:21pm
senciz2
Des Moines
Iowa, US
  • Tire Changer
oaguilar wrote:
No it won't increase HP, it'll only free up what you already have

Alright Ive seen you say this before and I dont think that you are expressing it the way you should be. No an intake does not "ADD" horsepower to your engine. but it does "INCREASE" the engine power output(very little in most instances) but it DOES INCREASE you engines power output. Increase does not mean ADD. if you are going to lecture people on this make sure you get it right. AND TO THE STARTER OF THIS THREAD... yes an intake will INCREASE the power output of you engine. but by just a tad bit LOL. And so will exhaust, header, and pulleys.


[#] Aug 11, 2008 11:41pm
Kurisutaira
  • Godlike Advisor
^^^^i think all of u need to read the link i posted.....
it might learn u somethin'



"This is what happens when an unstoppable force meets an unmovable object"
[#] Aug 11, 2008 11:43pm
senciz2
Des Moines
Iowa, US
  • Tire Changer
Kurisutaira wrote:
^^^^i think all of u need to read the link i posted.....
it might learn u somethin'

You need to go learned something yourself before you tell other people to go look at stuff that might learn them something... Effin retard.

[#] Aug 11, 2008 11:45pm
Web
Maryland, US
  • THE SHADOW
Keep it civil or it gets locked.

Search the site for basic information like this rather than posting another thread asking random questions that have already been answered.

Intakes and other bolt on components, as mentioned in the above post, will "increase" the power output of the engine by simply removing the stock/factory restrictions. The only way to physically GAIN power to the already existing power produced by the engine is Forced induction (S/C, Turbo) or Nitrous...





Complaining is futile when you supported the victory.
[#] Aug 12, 2008 12:38am
Web
Maryland, US
  • THE SHADOW
WhooKid wrote:
I don't know too much about CAIs but I have read about them here on the site, but I still have some questions...

Do they increase or decrease miles per gallon?
Some say yes, others say no. I've come to the conclusion that with just an intake, it's MINIMAL what gains/losses you will see in mpg.

How much horsepower will it add to my 07 tc with everything stock under the hood? (if it goes by specific brand, assume its an injen)
Injen claims somewhere around 9-12 hp. What you have to realize is that is CRANK horsepower, not WHEEL horsepower. And, that's at PEAK power rpms, not throughout the power band. The number they claim is translated to about 4-5 WHEEL hp and that's at 5300-5400 rpm. Pretty much, everywhere else on the power band, it's about .5-1 whp.


And speaking of Injens, why are they so popular with tc owners when you can get one for much cheaper, like this....

http://www.customstore44.com/coldair.htm
The brand is well known and it "claims" the most gains for the tC


obviously they are better, but how?
Namebrand companies spend a lot of money in R&D (research and development) for their products. "Usually," that means that their products are better than generic competitors but, for some things, that is not true. Intake tubing is just that, tubing. But, how it's bend and the length of the tube, and the positions of the MAF sensor, and the position of the valve cover vent tube and the texture of the metal all come into play when designing an intake as well. After some intakes have been out on the market for a while, other generic companies will mimic the designs the best they can and get similar results. In the end, it's simply a noise maker for the engine that will help minimally alone.

Just trying to learn as much as I can before I get one, I just want to increase the hp a little bit and I figure this is the best way.

Thanks.





Complaining is futile when you supported the victory.
[#] Aug 12, 2008 12:59am
WhooKid
New York, US
  • Oil Changer
^^Cool, I think I understand now.

I'm checking out the Injen SP2114
on injenairintakes.com. They offer a HydroShield and a cleaner kit, but they aren't necessary are they? (I know what they do, just want some opinions.)

[#] Aug 12, 2008 01:24am
Spitfire
Kingsville
Texas, US
  • Scion Guru
cleaner kit: i think you can get at autozone, atleast the one i use. not sure about the hydroshield, i guess it wouldnt hurt.


-wayne
08' BRM tC

A monkey in a suit is still just a monkey...
[#] Aug 12, 2008 01:28am
BlazednSleepy
Chatsworth
California, US
  • Chief Mechanic
hydroshield to me is a must if you get a cold air intake..it doesnt sacrifice airflow and keeps water out and it can also keep your filter from getting so dirty. I highly recommend getting it.

[#] Aug 12, 2008 01:34am
Web
Maryland, US
  • THE SHADOW
^Yeah, I like that after 25K, my filter is still nice and red rather than black from dirt. I'd get the filter wrap if it's a separate option.



Complaining is futile when you supported the victory.
[#] Aug 12, 2008 09:21am
minger_88
  • Tire Changer
What the intakes are supposed to do is reduce friction that the air gets imposed on it by the filter. However, gaseous friction is a function of velocity squared, and under normal driving conditions there will be negligible difference.

At engine speed increases the effects also increase and there may be a slight difference in available power output at high RPM, but at that point, you're not concerned about MPG are you? I guess if you drive in 3rd gear around town, you may increase from 18 to 21 mpg, but for the typical person, you won't see a difference in MPG.

[#] Aug 14, 2008 09:01am

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