Thread: Cold Air

You won't hurt anything by installing a CAI but if you want an appreciable HP gain it's best to get a less restrictive down pipe in the exhaust.

Now if you REALLY want some serious HP save up and get this:
http://www.turbokits.com/grand_prix_gxp_turbo_kits.html

It comes with a new air intake and a less restrictive exhaust...and everything else!

There are only two things I can think of that she might have heard about. First, if you over-oil your K&N when you clean it some of that oil can get on the MAF sensor, and your engine will run a little rough. It's easy to fix with a (at most) $5 can of MAF cleaner. Second, you'll be getting more air into the engine and the air will flow past the MAF differently, so that can cause you to run very slightly richer or leaner, but not in any way unsafe. I've never heard of any issues that MAF cleaner won't fix and most guys see a little better fuel economy. Also, the computer will adjust the fueling over time.

Holy crap. This is why women shouldn't work on cars! Lol just kiddin. Now come on, u can NEVER hurt your engine with a cai kit. I mean hell its just an upgraded version of what u already have. Most people report better fuel mileage. I will say that if u wanna see decent seat of the pants difference u might look into some other mods to "complimant" the cai like a dp or headers.

considering you have a gxp...do they even have aftermarket headers available?

there's potential that an intake could be worse than stock, but that's unlikely because if it was worse how could companies sell it? no doubt, there's more good to be had in a custom intake, but a K&N won't hurt you

swiss chesse or cut a larger opening in the stock airbox at the fender to get better breathing out of it.

you could even cut out the middle of the box and put a cone filter in there. improving flow would net you a nice gain.

most cars with JUST an intake and no tuning behind it will lose gas mileage.

when i had a cone filter on the end of the stock tubing and it hung down near the cross over, i did lose some milage. the car felt real bogish and well there is a simple explination for this. the IAT's were crazy hot because of the crossover so it started to pull timing. pulled timing left me with less power thus the car feeling boggy, plus i dont think it really liked all the heat. (this was also done on my N/A 3.8)

thats why i recemend just moding the stock air box, its cheap, its still in the box so you dont have to worry about an open cone heat soaking from the heat in the engine bay and it can pass you over till you get an intake, or hell it might even be better than one you buy.

if you have a poorly designed intake that sucks in alot of the hot engine bay air (which can be more than 140*) it will be a disadvantage. sometimes diffrent intake set ups will change things alot from stock and the car will be slower till you get a maf tune to acomidate for it.

there is alot of factors here.

It is a win lose situation. You get more MPG's when your not in it normal driving IMO, but when you've got your foot into it...since there is more air the PCM commands more fuel and thus worse mileage then stock...if you want to go fast and get good MPG's...buy a Honda and boost the f**k out of it.

here's an example for ya, i've dropped a full 1.5-2 mpg with just an intake.

well i wouldent really say colder denser air. the only way i could see it being cold are is if the intake were outside of the car to get away from the engine heat, but then what if its hot outside??

increased airflow. yea, but i wouldent nececerly say colder air.

true....but like i said your not really getting cold air.

When I swapped the LS6 intake on I had to change the angle of the elbow slightly. That in turn changed how the air was flowing past the MAF, and it started to read incorrectly (it was about 5% off). The LTFTs (Long Term Fuel Trims) were correcting by 8-10%, so it was really rich. It cost me about 2mpg and the pedal felt like there was a bigger spring under it (I have drive by wire) until I had the MAF curve retuned. A CAI can do the same thing. But when tuned, you should get better mileage unless you have a bad setup and end up with a Hot Air Intake, as was pointed out above. The out of the box K&Ns usually don't mess with the MAF reading too much, but I've heard a few tuners report having to lean things out after a CAI was installed.

Originally Posted by nmp0098

When I swapped the LS6 intake on I had to change the angle of the elbow slightly. That in turn changed how the air was flowing past the MAF, and it started to read incorrectly (it was about 5% off). The LTFTs (Long Term Fuel Trims) were correcting by 8-10%, so it was really rich. It cost me about 2mpg and the pedal felt like there was a bigger spring under it (I have drive by wire) until I had the MAF curve retuned. A CAI can do the same thing. But when tuned, you should get better mileage unless you have a bad setup and end up with a Hot Air Intake, as was pointed out above. The out of the box K&Ns usually don't mess with the MAF reading too much, but I've heard a few tuners report having to lean things out after a CAI was installed.

this.