Well I had it for about a month now waiting to get my Evo. Now I got it the Evo so I want to install it. I was wondering if I can install it now seeing as the car only has 185 miles, or just wait intill i finish breaking it in?

 

Sweet....

you'll love the sound.......

 

Do you think I can install it now or should i wait intil break-in?

 

I can't see where it would matter, normal break in process (whatever your preference may be) is the same w/ any intake. Stock or otherwise

 

nice kit but I think wait tell you break in ............. because if you installed it now you will not stop hearing the sweet woooosh so you will keep reving the car coz you will love the sound

 

Put it in, and just lay off the boost until it is broken in. It will probably be hard to do though

 

make sure to run some sort of cold air outlet to it or your just gona lose some hp = /

 

You are gonna need some fuel tuning for that intake. Get a flash.

 

Wait until you get a few more mods like exhuast, DP, and maybe an EBC or an MBC. You will have to get it tuned and it's better to have a good amount of mods to tune at once than one at a time.

 

Not true. I had no issues whatsoever after I installed the intake on my Evo. Didn't have any flash, safc, etc. before and it ran fine. All I did was disconnected the battery and went on with the install.

 

Wait until you get the "glitches" ironed out.. put a few hundred miles on the car after breaking it in.. get a feel for what is "normal" for your car.. then go ahead and install it. Most aftermarket air filter setups will have some odd anomolies, nothing major, but many say they felt a loss in low-end power (Disconnecting the battery and forcing the ECU to re-learn may help since I think its mostly a perception of loss until the ECU adjusts)

Now, there is data showing that an aftermarket air filter WILL Increase horsepower slightly due to its affect on the MAF sensor (the sensor that goes between the pipe and the filter) however that effect has to do with its altering the sensor reading more than increasing airflow. Keep that in mind, I also have some graphs showing the MAF readings jumping around a bit which could lead to a sensation of surging, possibly bouncing into a lean condition)

With all that said, on a stock car, if you like the sound, there's no reason why you shouldn't install it. However from personal experience, and the experiences of others, its not really necessary unless you like to hear the sound of the turbo and the whoosh of the diverter valve. Many of us who have modifications on our cars find that its necessary to "tune around" a filter setup like this, and from a airflow standpoint, didn't offer much gains since the restriction in the intake is currently that MAF sensor more than the Airbox.

Again, go ahead and install it.. But definitely put a few hundred to a few thousand miles on the car before you do. It won't hurt anything, but you will want to have a feel for your car when its stock, and feels right, otherwise changes you make will be difficult for you to tell if its hurting or helping.. Trust me..

 

Agreed..........

 

The HKS filters cause altered MAF readings in the low rpm's up to about 4500 RPM. This causes the car to run a little lean. I have datalogged before and after and you can see a fairly big change in the O2 voltages under WOT below 4500 RPM. With the stock airbox, the O2 voltages are .94 to .96 volts in this area. With the HKS filter, I saw .88 to .90 volts up to 4500 RPM, then it would richen up to .96 or higher. It will run fine without a fuel controller, albeit a little lean. It will run much better with an ECU flash that takes this into account.

Under lite throttle (closed loop ECU control) the computer should adjust the fuel trims to correct this issue.

Brian

 

Great info Brian!

I don't meand to get off topic or steal your thread Jovani. It just makes me wonder about my set up. Maybe you can help me?

I've got and Evo with the same type of induction. My car ran a 13.1 @ 102mph. with this induction and the restrictor removed.

I then installed Denso IW24's and the car felt quicker under part throttle, but slower under full throttle. I later found out the 1 step colder Denso's made the car run richer in the upper rpm's. Enough so to make the car actually have a dip in the rpm's around 4500-5200 rpm's. I never reset the ECU. The car ran a best of 13.2 @ 101mph with consistent 13.3 @ 100mph.

I changed back to stock plugs and have been fine since.

Just last night I installed an Espelir JGT500 catback exhaust. The car is louder. It feels much quicker driving around town with part throttle pulls. Full throttle feels much like with the denso's, if not worse. From about 5000rpm's to redline the car stumbles or dips throught the rpm range. I hate this. Feels like the Denso's did, but more noticable. I did not reset the ECU either.

Any thoughts?

 

i agree with the above statements, wait until you brake it in, then get a reflash(i'm not sure if it's available for the 04 models yet)