Is Intake change of any value?
Is Intake change of any value?
I just took the air filter out of my Hondatafied 06 TSX 5AT, and bolted the stock filter box back together. This gives one in essence a cold air intake (the intake tube is in front of the lower radiator, visible through the grill); and of course, unobstructed air flow directly into the intake manifold.
I then took the car out onto a clean stretch of road near home (scared for the lack of any air filter), and ran several 0-60 attempts. I used a standard stop watch and ran several in straight auto and several in Auto-stick shifting at 7200 rpm.
I could measure no significant difference from full filtration. (Also there was no discernable change in sound or sound level)
Is all this simple intake mod stuff a bunch of hype?
I then took the car out onto a clean stretch of road near home (scared for the lack of any air filter), and ran several 0-60 attempts. I used a standard stop watch and ran several in straight auto and several in Auto-stick shifting at 7200 rpm.
I could measure no significant difference from full filtration. (Also there was no discernable change in sound or sound level)
Is all this simple intake mod stuff a bunch of hype?
Originally Posted by eo11
I just took the air filter out of my Hondatafied 06 TSX 5AT, and bolted the stock filter box back together. This gives one in essence a cold air intake (the intake tube is in front of the lower radiator, visible through the grill); and of course, unobstructed air flow directly into the intake manifold.
I then took the car out onto a clean stretch of road near home (scared for the lack of any air filter), and ran several 0-60 attempts. I used a standard stop watch and ran several in straight auto and several in Auto-stick shifting at 7200 rpm.
I could measure no significant difference from full filtration. (Also there was no discernable change in sound or sound level)
Is all this simple intake mod stuff a bunch of hype?
I then took the car out onto a clean stretch of road near home (scared for the lack of any air filter), and ran several 0-60 attempts. I used a standard stop watch and ran several in straight auto and several in Auto-stick shifting at 7200 rpm.
I could measure no significant difference from full filtration. (Also there was no discernable change in sound or sound level)
Is all this simple intake mod stuff a bunch of hype?
You don't actually have a cold air intake by doing that. The resonator is still in place and the intake is still drawing air from the hot engine bay.
A proper intake mod (e.g injen CAI, comptech icebox/mugen airbox) DOES actually improve performance and give more power and torque (this is also dyno tested). The comptech icebox and mugen airbox will both improve throttle response and you will definitely feel it. There will also be a change in engine sound from all these intakes. Injen being the loudest and the icebox being the quietest.
A proper intake mod (e.g injen CAI, comptech icebox/mugen airbox) DOES actually improve performance and give more power and torque (this is also dyno tested). The comptech icebox and mugen airbox will both improve throttle response and you will definitely feel it. There will also be a change in engine sound from all these intakes. Injen being the loudest and the icebox being the quietest.
Trending Topics
Try putting the filter back and removing the resonator. You should be pleasantly surprised.Its pretty dangerous to run without a filter at all. At a minimum you're sucking in dust and stray bugs. I use the Comptech icebox setup (no resonator, with air horn), when I changed my filter last I found about 8 leaves and 4 twigs under my filter.
Originally Posted by PixelHarmony
Hmm... what happens if you suck in a little leaf?
Originally Posted by eo11
I just took the air filter out of my Hondatafied 06 TSX 5AT, and bolted the stock filter box back together. This gives one in essence a cold air intake (the intake tube is in front of the lower radiator, visible through the grill); and of course, unobstructed air flow directly into the intake manifold.
I then took the car out onto a clean stretch of road near home (scared for the lack of any air filter), and ran several 0-60 attempts. I used a standard stop watch and ran several in straight auto and several in Auto-stick shifting at 7200 rpm.
I could measure no significant difference from full filtration. (Also there was no discernable change in sound or sound level)
Is all this simple intake mod stuff a bunch of hype?
I then took the car out onto a clean stretch of road near home (scared for the lack of any air filter), and ran several 0-60 attempts. I used a standard stop watch and ran several in straight auto and several in Auto-stick shifting at 7200 rpm.
I could measure no significant difference from full filtration. (Also there was no discernable change in sound or sound level)
Is all this simple intake mod stuff a bunch of hype?
With the intake installed, we fired up the car again, and after bringing the coolant temp back up to the same level as the earlier runs, we made a pass. The results were not too good. Scratching our heads, I noticed the check engine light was illuminated. Uh-oh. I looked on the OBD-II software screen and saw that an odd code had been thrown by the ECU. It was related to the IAT sensor. Thinking back, before installing the intake, I believe I accidentally disconnected the IAT sensor earlier while the ignition was still on (I was running the radiator fan to cool the car down quicker) and this likely tripped the code. Using my OBD-II tool, I reset the code and we made another pass (the same thing could be accomplished by pulling the fuse to the ECU and resetting it). This time the results were much better, beating the baseline by several hp. We made another pass and the car picked up a few more hp. The ECU was "learning" about the additional air the intake was providing. I decided to run the car "free" on the rollers for a few minutes to allow it to "learn" more about the additional air and make the proper fuel trim adjustments.
After this "learning period", we made another dyno pass and the car again made a bit more power. Subsequent runs were consistent with this pass so we decided that it had stabilized. The result? A peak of 185.7hp to the wheels, and 159.6 lb-ft of torque. According to our dyno runs, a bit of torque is lost below about 3000 rpms, but at 3300 rpms it starts making more torque (and thus power) than stock, and it continues delivering more power all the way to the 7300 rpm rev limiter. The peak gain is 8.2hp but peak torque is only up by about 1.7 lb-ft.
After this "learning period", we made another dyno pass and the car again made a bit more power. Subsequent runs were consistent with this pass so we decided that it had stabilized. The result? A peak of 185.7hp to the wheels, and 159.6 lb-ft of torque. According to our dyno runs, a bit of torque is lost below about 3000 rpms, but at 3300 rpms it starts making more torque (and thus power) than stock, and it continues delivering more power all the way to the 7300 rpm rev limiter. The peak gain is 8.2hp but peak torque is only up by about 1.7 lb-ft.
Full article:
http://www.vtec.net/articles/view-ar...&page_number=2
I was wrong
Yes, I put the filter back in within 30 minutes. It was only a test.
After reading the replies, I took another look; and I was wrong. The stock air intake is at the top of that tube from the resonator up in the engine compartment. I can now see that removing the resonator and the indirect air path might well improve induction efficiency and lower inspired air temp.
After reading the replies, I took another look; and I was wrong. The stock air intake is at the top of that tube from the resonator up in the engine compartment. I can now see that removing the resonator and the indirect air path might well improve induction efficiency and lower inspired air temp.
Thread
Thread Starter
Forum
Replies
Last Post
cycdaniel
1G TSX Performance Parts & Modifications
8
Dec 17, 2019 10:58 AM
nanos
Car Parts for Sale
26
Nov 12, 2015 08:41 PM
Abe_Froman
Car Parts for Sale
1
Sep 16, 2015 01:27 PM


