scratch, rattle and roll...my AEM v2 is making a racket! - Honda Accord Forum : V6 Performance Accord Forums
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Old November 23rd, 2004, 12:31 PM   #1
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scratch, rattle and roll...my AEM v2 is making a racket!

Hi,

I just picked up a 2003 AV6 MT yesterday and really love the car. It was a bit rainy out, though, so i couldn't really toy with the car too much...suffice it to say i did have some fun...

Today the roads are dry and the air is cool, and i've really had a better opportunity to open her up and get a feel for the car. The previous owner installed an AEM v2 CAI in the car just after he purchased it. While during the testdrive i thought the sound was a little offputting, i have grown to really like it....most of it that is.

The first thing that i've noticed is that if i'm sitting at idle and blip the throttle, i hear what could best be described as a 'scratch'... I first thought it was some mechanism/linkage in the throttle body opening up, but after doing the 'stand with one foot in the car and the hood open' inspection, it sounds more like the sudden influx of air as the pressure in the tube drops and the airflow builds up (kind of the 'vacuum packed' sound). I'm not sure what it is exactly, but am just looking for some input to make sure it's nothing bad.

Second is, when i'm WOT and getting into the low 5k rpms, i start to hear a sharp 'blatting' sound from the other side of the firewall. I'm assuming it's the tube, possibly just the sound of air getting sucked into the motor at some huge speed (not sure what the airspeed is around the valve seat when the car is at 5k rpm, but i'm sure it's high). Also just wondering if that's normal or not.

I found that the tube was cool to the touch even after a fairly hard drive, and was wondering if anyone has played with a strip of dynamat or similar down the back of it... I just want to hear the motor, not the tube.
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Old November 23rd, 2004, 12:43 PM   #2
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i don't know about the first one... but as for the second one, i think thats somewhat intended. the only constant complaint that i've heard and experienced with CAIs in general is the little whistle sound at around 2300 rpm. but that happens with everything.
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Old November 24th, 2004, 08:32 AM   #3
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Blipping the throttle at idle with the AEM V2 will cause that sound you are talking about. It is a sudden influx of air rushing into the intake plenum. You cannot hear it that well with the stock intake system due to the baffles and isolation tube(a dead end wavy tube coming off the intake in the fender). The noise at the low 5000 rpm range is the harmonics kicking in with the V2. Also at 4900 rpm the variable timing switches over as well. This will be the loudest sudden change you will hear. You should also hear a change in pitch at 4000 when the intake plenum separation butterflies open up also. And don't forget the 2500 rpm whistle at POT.

Lotsa noise, lotsa power. Let's me know everything is working.

J

Last edited by Jinx32; November 24th, 2004 at 08:48 AM..
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Old November 24th, 2004, 09:42 AM   #4
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I can make my V2 whistle at any RPM . Just have to learn to give it a little more gas as the RPM's climb, and I mean a very very tiny bit. I love driving by cars doing that....

THEM WHISTLES GO WOO WOOOOOOOOOOOOOOO....yea I know...not the same thing, but I can hope haha.

The AEM V2 CAI is a nice intake system, and I'd suggest getting exhaust sometime soon after if you can afford it. I got the GReddy EVO 2's, 2nd most expensive exhaust out for our cars, was $800ish, but well worth it.
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Old November 24th, 2004, 10:03 AM   #5
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[QUOTE=stoner]I can make my V2 whistle at any RPM . Just have to learn to give it a little more gas as the RPM's climb, and I mean a very very tiny bit. I love driving by cars doing that....

THEM WHISTLES GO WOO WOOOOOOOOOOOOOOO....yea I know...not the same thing, but I can hope haha.
QUOTE]



bubb rubb!!!!!!!!!!!!!!!!

BWUAAAHHHHH!!!!!

That shi was classic!!!
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