from 3rpm and up i hear this whisling sound. Does anyone else have that sound occur that is coing from the pop charger?

 

yes that is normal for most types on cone style filters. sounds cool don't ya think?

 

yea i have it to, mostly when taking off.
i posted a thread about it, you might want to do a search on pop charger whistle

 

One last concern guys! After installing the pop charger i get thise rattle when i turn off the car that seems to be coming from the exhuast when its parked in nutural. However if i park the car and i have the clutch in and i turn off the car it shuts down like normal with no rattles. Is that also normal?

 

Old thread I know, but it's better than starting a new one on the same subject.

I just installed mine today, and I was wondering about the whistle. Could it be coming from where the MAF seats to the filter housing? I know it could be a normal sound for cones, but what if the surface of the filter housing wasn't flat enough to seat the MAF housing all the way around? Maybe the air rushing in through a small gap is making the whistle sound, or at least contributing to it.

I may try a gasket between the two to ease my concerns.

What do you guys think?

Regards,

John

 

It's not the MAF, it is the nature of the Venturi ring. The way it funnels the air causes a whistle, very common, mine seems to only happen whent he outside temp is over 70.

03 - Black - Premium - Wood - Aero w/ Spoiler - Z Tube - Grounded - Stillen CAI

 

I've only heard this whistle a few times... and I can't seem to figure out exactly when it happens... can you guys be more specific?

I think it only happens during light acceleration around 3krpm?

 

Xenon,

You almost answered your own question:

The rattle you near when shutting your car off in neutral is the clutch. When you push the clutch in and turn it off, the plates are pressed together and therefore can't rattle. I noticed the same thing on my 6MT sedan long ago.

Perhaps it's a characteristic of a "high performance" clutch (that handles loads from a high power engine). My previous S2000 used to do it too.

DEJim