Comptech Air Box Whistle
- Thread starter LJSB
- Start date
This may be far fetched, and is probably unlikely, but you can take it for what it’s worth. The whistling noise may indicate a leak path.
I remember about 10-years ago somebody patented an air filter with a small orifice in it. Over time, as the filter got dirtier, more air would take the path of least resistance, which is the orifice.
The orifice was sized so that it would whistle as air passed through it. As more air went through the orifice, the whistle would go from inaudible when the filter was new and clean, to fairly loud when the filter needed to be changed.
I remember about 10-years ago somebody patented an air filter with a small orifice in it. Over time, as the filter got dirtier, more air would take the path of least resistance, which is the orifice.
The orifice was sized so that it would whistle as air passed through it. As more air went through the orifice, the whistle would go from inaudible when the filter was new and clean, to fairly loud when the filter needed to be changed.
I have the CT airbox along with an SC and my setup produces a whining noise at acceleration (the higher the RPM and the harder the acceleration the higher the pitch). The noise is associated with the airbox/SC combination and I think it sounds nnaassttyy and love it. I'm not sure if your whistle is the same as my whine; but, if it is, then there is no problem.
Doesn't sound far fetched at all.
The unit is pretty straightforward and the top and bottom seals appear to be seated and all hoses securely in place.
I have a stock filter in the box not the Uni which it came with.
Overall it is little quieter than the Uni but this sound has always been there.
I thought it may be due to the different design at the actual point of air intake or perhaps a resonance produced/conducted by the carbon fiber box.
I have heard the same sound in a CTSC car only louder or it seemed so. So much happens so quickly in a CTSC car that there is a lot to appreciate all at once.
The unit is pretty straightforward and the top and bottom seals appear to be seated and all hoses securely in place.
I have a stock filter in the box not the Uni which it came with.
Overall it is little quieter than the Uni but this sound has always been there.
I thought it may be due to the different design at the actual point of air intake or perhaps a resonance produced/conducted by the carbon fiber box.
I have heard the same sound in a CTSC car only louder or it seemed so. So much happens so quickly in a CTSC car that there is a lot to appreciate all at once.
I realize it is late in the season; but, if you folks in NY decide to have a run or a track event next year, I'd love to join you and meet some northeastern owners. Keep it in mind, ok?
Believe it or not I just put a K&N drop-in filter in my car and I now get that same high pitched whistle. It is the same whistle I got with my CRX Si when I had a cone filter on it. I think we are just hearing natural sounds of the intake that we couldn't hear before because the stock air filter was too restrictive.
I have the CF Comptech Air Box also with the best filter for the NSX the stock one and I hear nothing like what you described.
Steven 91 Blk/Ivory
Steven 91 Blk/Ivory
hey Joe, I have the ct box and uni filter and don't get a whistle but I do hear a sucking or whooshing noise.I have not tried the ct box with stock filter.Plus my exhaust is so loud I would'nt be able to hear Linda Lovelace screaming behind me,,or doing whatever.
