Stock intake vs. K&N intake and VBOX accuracy
08-20-12, 05:53 AM
#17
Young, Definitly stick with the stock intake or a pipe replacement option only as well as the OEM filter. There are no real world gains away from the dyno. Any other intake on the market that deviates from the stock configuration will be inferior. Ran my 11 second run with stock intake/filter and pulled 400+ whp on both dynojet an dynapack. Focus on the exhaust and the weight savings as you have been doing and you'll be good to go.
Good luck man!
Good luck man!
Last edited by caymandive; 08-20-12 at 06:04 AM.
08-20-12, 08:16 AM
#19
No problem Doc, I remember that thread and indeed it was convincing!
My bad. Sorry didn't mean to screw it up Juanca. My memory is foggy after 4 years of beers LOL. But there was a rather convincing writeup and test of the K&N intake by that one dude who did all sorts of dyno testing and I really was hoping it was going to give me some easy HP.
08-20-12, 11:54 AM
#20
Driver School Candidate
Very nice write up. I like this kind of apples to apples comparison. I do have the K&N intake but there is absolutely no gain that I perceive and the fuel economy is poorer, but that said sound is better. Weight reduction is the key. However 18" tires are hard to digest for a pretty car like F. I know they will run faster, but will not do justice to how the car looks. I think we should wait until someone cracks the engine for force induction. Without that we will never see a perceivable difference.
08-20-12, 02:59 PM
#22
Great read, thanks!
I put on the K&N while waiting for an exhaust because I figured it would give me some noise to enjoy. I do love it but I'll likely go back to the stock intake now that I have the exhaust on the car. The K&N sound is absolutely amazing but I don't think it's doing much besides noise.
I mean, it's been 4-5 years of the ISF being on the road and there is still such uncertainty about intakes. I think it's fairly safe to say that any gains are negligible in either the + or - direction. The K&N *appears* to shift the powerband up a bit, but I agree that it may just be the rawkous noise deceiving us.
On a side note...with temps between 90-100 for the past couple weeks I have to admit that the stock intake box seems the best bet for me personally. So I will likely switch back to it this week to see if I can tell the difference.
I put on the K&N while waiting for an exhaust because I figured it would give me some noise to enjoy. I do love it but I'll likely go back to the stock intake now that I have the exhaust on the car. The K&N sound is absolutely amazing but I don't think it's doing much besides noise.
I mean, it's been 4-5 years of the ISF being on the road and there is still such uncertainty about intakes. I think it's fairly safe to say that any gains are negligible in either the + or - direction. The K&N *appears* to shift the powerband up a bit, but I agree that it may just be the rawkous noise deceiving us.
On a side note...with temps between 90-100 for the past couple weeks I have to admit that the stock intake box seems the best bet for me personally. So I will likely switch back to it this week to see if I can tell the difference.
Last edited by anxiouz; 08-20-12 at 04:27 PM.
08-20-12, 05:35 PM
#24
11 Second Club
Thread Starter
LOL... sorry, literally TODAY was garbage day and now it's already in a landfill somewhere. Too bad because It was practically brand new - but I figured nobody would seriously want it after what I posted.
08-20-12, 05:37 PM
#25
11 Second Club
Thread Starter
Very nice write up. I like this kind of apples to apples comparison. I do have the K&N intake but there is absolutely no gain that I perceive and the fuel economy is poorer, but that said sound is better. Weight reduction is the key. However 18" tires are hard to digest for a pretty car like F. I know they will run faster, but will not do justice to how the car looks. I think we should wait until someone cracks the engine for force induction. Without that we will never see a perceivable difference.
08-22-12, 05:47 PM
#26
Young, Definitly stick with the stock intake or a pipe replacement option only as well as the OEM filter. There are no real world gains away from the dyno. Any other intake on the market that deviates from the stock configuration will be inferior. Ran my 11 second run with stock intake/filter and pulled 400+ whp on both dynojet an dynapack. Focus on the exhaust and the weight savings as you have been doing and you'll be good to go.
Good luck man!
Good luck man!
08-23-12, 06:05 AM
#27
A little off topic, but saw reference to a vbox and don't know too much about it. I have been thinking of getting one for some time. I don't want to spend a lot, and only want the ability to accurately calculate acceleration and lap times. I would like to be able to quickly transfer from my ISF to my CBR1000rr. Is the VBOX in the link below my best bet? Thanks in advance.
http://vboxusa.com/store/index.php?m...d4fdac91217767
http://vboxusa.com/store/index.php?m...d4fdac91217767
08-23-12, 09:46 AM
#28
The more I read and think about the vbox the cooler I think it is. I would enjoy playing around with something like that.
My random comment of the day: the temps have gone down recently and my car certainly "feels better" slightly. I'm still using the K&N. Saturday morning I'm planning on going back to stock before it gets too warm and doing back-to-back tests to see if I can tell a difference.
I do feel like down low (around 2k rpm) there's a little dead area where the car has a slight...not hesitation but a hair of a lag or lull for an instant. Only under partial throttle. It's audible too. I don't think it's specific to any intake, but does anyone know what that is? I've always thought it was the variable intake timing changing. But does anyone know? I think with the K&N it's more noticeable but even stock I'm pretty sure it felt about the same.
My random comment of the day: the temps have gone down recently and my car certainly "feels better" slightly. I'm still using the K&N. Saturday morning I'm planning on going back to stock before it gets too warm and doing back-to-back tests to see if I can tell a difference.
I do feel like down low (around 2k rpm) there's a little dead area where the car has a slight...not hesitation but a hair of a lag or lull for an instant. Only under partial throttle. It's audible too. I don't think it's specific to any intake, but does anyone know what that is? I've always thought it was the variable intake timing changing. But does anyone know? I think with the K&N it's more noticeable but even stock I'm pretty sure it felt about the same.
Thread
Thread Starter
Forum
Replies
Last Post
Gathering Interest Speed Freaks USA: aFe Intake feeler thread
SpeedFreaksUSA
CL Vendor Products for IS-F
25
08-28-15 03:25 PM
