b1pig
08-28-2007, 11:01 PM
I came across a K&N FIPK for my JK.
Install was done yesterday. It surprised me, but the JK intake and airbox came out in about 5 minutes... it would have been 4 and a half if i had not taken the time to look at the watch and time it.
install was as it was with my Tahoe's intake kit.... some assembly with the heatshield.
Here's the impressions driving:
if i drive it like my wife... babying it, there is little indication that there is anything done to the engine.
if i give it just a little more throttle, there is a light rumble from under the hood... nothing major.
here is where the difference is between the Tahoe and the JK. I floored it. buuuuUUUUUURRRRRR!!!!
The resonance vibrates through the whole Jeep. I took Lori out for a ride after it was all done, and she agreed that it was fine for normal driving, but it would let you... and anyone near by know that you had kicked the afterburners in. smile.gif
Ok.
The fuel economy. I have yet to run it through a tank of fuel. i have also heard from various other owners that after doing any mod, it wook some time for the computer to equalize... or settle down. also, i have seen in my own JK what others have. That is to say that the trip computer is fairly kaotic.
with that thought in mind, i spent about an hour and a half driving the JK and fiddling with the trip computer. prior to installing the intake, the JK was averaging about 15-16.5 miles per gallon. (i didnt take this into account until after i got home and parked... but the weather was quite pleasant this morning, so I had the windows down and a/c off... but the catch is that i have run without the a/c many times before with pretty much the same results...)
So, after plunking around in town and spending about 30 minutes on the highway at roughly 60-65 mph, the JK was returning numbers around 19.5 mpg. This included several minutes in town at 25-35 mph. Not bad...
there is another benefit. There is a hill a couple of miles from the house. The JK always required my to conciously add more throttle in order to maintain my speed of about 60... and often while driving on level roadways, i always felt like i had to coninually manipulate the throttle...today that was not the case. not only did i have the throttle in one position, it maintained its speed just fine.
nice.
now for the exhaust. :D
Install was done yesterday. It surprised me, but the JK intake and airbox came out in about 5 minutes... it would have been 4 and a half if i had not taken the time to look at the watch and time it.
install was as it was with my Tahoe's intake kit.... some assembly with the heatshield.
Here's the impressions driving:
if i drive it like my wife... babying it, there is little indication that there is anything done to the engine.
if i give it just a little more throttle, there is a light rumble from under the hood... nothing major.
here is where the difference is between the Tahoe and the JK. I floored it. buuuuUUUUUURRRRRR!!!!
The resonance vibrates through the whole Jeep. I took Lori out for a ride after it was all done, and she agreed that it was fine for normal driving, but it would let you... and anyone near by know that you had kicked the afterburners in. smile.gif
Ok.
The fuel economy. I have yet to run it through a tank of fuel. i have also heard from various other owners that after doing any mod, it wook some time for the computer to equalize... or settle down. also, i have seen in my own JK what others have. That is to say that the trip computer is fairly kaotic.
with that thought in mind, i spent about an hour and a half driving the JK and fiddling with the trip computer. prior to installing the intake, the JK was averaging about 15-16.5 miles per gallon. (i didnt take this into account until after i got home and parked... but the weather was quite pleasant this morning, so I had the windows down and a/c off... but the catch is that i have run without the a/c many times before with pretty much the same results...)
So, after plunking around in town and spending about 30 minutes on the highway at roughly 60-65 mph, the JK was returning numbers around 19.5 mpg. This included several minutes in town at 25-35 mph. Not bad...
there is another benefit. There is a hill a couple of miles from the house. The JK always required my to conciously add more throttle in order to maintain my speed of about 60... and often while driving on level roadways, i always felt like i had to coninually manipulate the throttle...today that was not the case. not only did i have the throttle in one position, it maintained its speed just fine.
nice.
now for the exhaust. :D