Weird noise on full throttle?
 

These 2 days, I started noticing weird noises coming from the engine compartment. It happens when it's in gear under full throttle (2nd, 3rd) (Neutral and 1st doesn't have that noise, and I havn't tried 4th yet). And only when the engine revs past 6k. it start making this weird wind noises, it sounds like it's coming from the intake, but I'm not sure.
Do you know what might be the problem? Should I worry?
Can someone please help me out? :bowdown:Should I worry?:rofl:

p.s. i have a hks racing suction kit

wind noise?
have you checked the HKS intake to make sure everything is tightened down properly?

it's like... idk how to describe the noise.. it's like wind blowing 60miles an hour and sth is flapping...
yea everything's tied down, there shuddn't be any leaks and all

random noises are very difficult to track down. a video would help.
any other issues other then the noise? loss of power? CEL? etc?

nope... none
just the noises

record video with sound of noise and post back!

hm... i'll try and see if i can get it up, but you guys thinks its a loose intake?
It really doesn't happen all the time. Just when its under full throttle, in gear and over 6k rev.
And its'a flapping noise, it sounds like it's coming from under the car. ARGH
it's really hard to explain and a video wuddn't really do much, cuz it's just from 7k -9k, it probably won't be that noticeable in a video

anyone got an idea of what this is?

The 6 port or the variable intake or something? I get one in my glovebox at 7500

same here i get it att full throttle still trying to figgure that out but mine only does it if i drive my car for about 1 hr and then it will start... I got my compression done and my compression is fine so motor is good.

I have no clue wut it is and have talked to other people on the forum here and they are trying to figure it out then going to let me know wut they find out....

Mine comes from my intake and it sounds like a gargling sound. It kinda even sounds like a muscle car. I also lose power

I tryed making a video but u cant hear it since i was just using a cellphone recorder. Maybe a more exspensive mic video camcorder will work better

Motor is not running lean during this its in the 12's AFR normal crusing is fine.. Sound goes away after awhile idk why

o i forgot to mention... idling is kinda weird as well.

OMFG, the sound is coming from under the car, and so i checked under the car today after i parked it. Some liquid was dripping and leaking from under the engine???
Somebody please tell me it's not as bad as it sounds

http://i34.tinypic.com/2lsi3i9.jpg
http://i36.tinypic.com/358nhnn.jpg

what color is the liquid?

not to thread jack

but my car i just installed the RB intake w/o duct 2 weeks ago ive removed the Vfad and at 4.5k rpm it goes from deep which is normal to like high pitch air sucking noise which i know isnt cuz when i first installed it it was all deep thoughtout the rpm range. Also ive had a CEL the past 2 days. idk.

it helps if you MOVE THE CAR and then take pics of the fluid. I can't tell what it is from there.
could be anything form A/C to oil to transmission fluid.

can you touch the fluid? what color? consistency?

ahhh... i'm so fucking stupid!
i'm at a mazda dealer right now, and waiting for it to get diagnosed...
could it be fuel grade?
cuz i think i might accidently put 87 on the last tank... WTF...
ahhhh WTF???

WTF???!!!!
what does putting 87 fuel have to do with anything? It's not as if the car says, "oh snap! 87 octane fuel inserted. Begin emergency fuel leak!"

wtf??? i bet you anything its the AC leaking, and the flapping sound is the ripped part of the undertray

I get the feeling you're about to get a very expensive quote from the Mazda dealership...

lol thats epic!

^+1 w/jedi

my wallet senses are tingling batman...

...me thinks the op is about to get ripped off! :eek:

no... =_= i wasn't saying the fluid has sth to do with the fuel... i was talking abt fuel and the popping flapping noise
yea... the fluid is just from the a/c... =_= i just checked...
and um uh... abt the noise... they are saying is missfiring, so it's either plugs or coils
they are looking at it on the lift right now. what do you guys think?

misfires??? you said you havent had any Check Engine lights...or did you?

if you're misfiring, you usually get a blinking CEL. (not always but usualy) If the only problem you have is misfires, you can fix that yourself for MUCH less then the dealership is going to charge you.