success07

Just had the MA CAI installed yesterday and I have a couple questions that I couldn't find answers to through the "search" function.

#1 - I put the "sock" over the cone filter but is it necessary? Is there any restriction becasue of it? I'll probably only get 3hp from it anyway so I want what I can get out of it.

#2 - There is an annoying/ overly obvious high pitched sound coming from it/ the engine compartment. I read that a couple of folks with this intake have experienced it but nothing more was said. I want it to go away. Is there a fix for this noise?

Thank you in advance for any help you can provide.

maxxdamigz

iTrader: (1)

I think the "sock" cuts down on the amount of moisture and larger debris particles that will get sucked into your filter. If you have ever cleaned and re-oiled an aftermarket filter, you will see that you get seeds, pieces of leaves, and other junk in the pleats. Also, if the road is wet, a sock type device will cut the amount of water hitting the filter. It should be breathable enough to not disturb the intake flow much.

As for noise, what is making the noise? Can you identify where it is coming from if you have the hood popped and you have someone work the throttle? I haven't seen an MS intake upfront. Most aftermarket intakes will make more noise than stock. They aren't usually in the "squeal" family, but maybe.

JB_Rotary

If it sounds like a vaccum cleaner it is probably normal.

peterisurhero

if it sounds like a little whistle its okay. i have an aem cai and it does the same. a lot of people actually have talked about that noice. i dont think its really bad.

RazzyBRX-8

I have the MS CAI, also. When I'm not pushing it I can hear a little whistle from it. I have no problems with it at all.

success07

I should have mentioned that it does seem to be working fine. My drive home from the shop was fun and spirited but when I got home to show my wife she immediately asked what that whistling was and I agreed with her that it was bad.

The high pitched noise is similar to a teapot when it's whistling. To me it takes away from the natural sound of the rotary engine and is annoying.

Anyone else with experience?

Mazda-Rati

I used to have to AEM CAI and it made the same whistle sound at idle you are talking about. It is normal.

AcidChris

Hi,
first sorry for my bad English I have the same problem with whistle since a few month. Sometimes it is extremely loud It can unfortunately be difficult to locate where it comes from. I have the CAI already 2x dismantled and assembled again. But unfortunately no improvement.
Here are two Vids from my RX8

http://www.youtube.com/watch?v=U4DPOrwI5Lk
http://www.youtube.com/watch?v=nKfcvMTEnYY

Jon316G

iTrader: (1)

I used to have the AEM intake and I never heard it whistle!
Funny thing is when I was playing that video, my wife asked if I was watching a video of someone vacuuming

Only one thing I can think of, pull the cap for the VFAD nipple that is behind the throttle body and see if its cracked.
If it is, go to Autozone and replace it.
You can buy a pack of various sizes for a few dollars.

AcidChris

i have checked the VFAD cap but its ok when i pull the highest under-pressure hose is the whistle louder. The Whistle appears directly from the hose to come. When i put my finger on this hose then the wistle is away.

Jon316G

iTrader: (1)

Which hose?

AcidChris

The Top (highest) Hose on the CAI wich the most under pressure

Jon316G

iTrader: (1)

Have you removed that hose and checked for cracks?
Is that hose just not sealing well where it connects to the intake pipe?

AcidChris

Jon316G

iTrader: (1)

Oh... because in your video I didn't see a clamp.

You must have installed the clamps after you took this video?

AcidChris

yes, sorry i forget it to say

AcidChris

So, i have maked a new Video...here you can see that the whisple comes out of the under pressure hose. Is it normaly ?
possibly the original Airbox insulates the whistle?
Thanks

http://www.youtube.com/watch?v=IlTZluv9jtw

AcidChris

Has nobody an idea ?

myriadshalaks

iTrader: (1)

sounds fine now with the clamps on.

AcidChris

no, it is not better than before sometimes it is louder sometimes quietly....

AcidChris

???
There more and more RX8 with same problem in German RX8 Forum.
Is there any possibility to fix the problem?

mindlessadema

I just installed my aem cai which i believe is almost identical to the ms cai. it does make the buzz, whisttle noise you describe, but heck its hot... isnt that why you installed it, to make your engine louder? if not put the stock back on, and let ur ears rest... i know im leaving mine on!

rodjonathan

iTrader: (6)

yea i recently put the aem cai and theyre identical and i love the whistle its not a problem its meant to do that. also does anyone know where i can get the sock? im missing mine and i would like to put it on

DarthRX8

I tried to buy a sock separate and could not find one. I bought a pre filter (K&N) instead (for the colorado winters).

http://www.knfilters.com/search/wrap.aspx

I can't remeber exactly what model it was that I ordered, but it fits perfect. G/L

rodjonathan

iTrader: (6)

thanks alot for the info ima prolly try that out