Weird noise

[Jeremy16]

Hey, iv had my msp since november, my first car im 17, and i love it.
i just registerd on this forum, my car is all stock.

i jsut got a question, lately iv been hearing this noise that sounds like screetching when i accelerate around 5000Rpms and iv been wondering what it is. i was thinkin maybe something wrong wit the turbo or transmission maybe i dont know.
Anybody have any clue?

 

[mspHtown]

how many miles are on the car?

 

[Jeremy16]

52000

 

[mspHtown]

i take it you know wut the turbo spooling up sounds like. ive heard that the wastegate starts making a whistling noise when it starts going bad.

 

[Jeremy16]

go on about this waste gate and spooling.....

 

[mspHtown]

the wastegate controls the amount of boost the turbo will allow (unless you have a boost controller of some sort). the stock wastegate tends to crap out over time and i beleive the diaphragm tears which causes the turbo to overboost. in the past, you had to buy a new turbo because there was no cheap replacement for the stock wastegate. ATP carries a direct swap for like 50-60 bucks i beleive. this may not be ur problem at all. the turbo should make noise especially when it is spooling up. if your wastegate is ******, you will know. does the car feel faster than usual?

 

[Jeremy16]

idk not rele, it seems a like louder. it only happens sometimes i hear this liek screetching. should i like take it to mazda dealer or something

 

[reg_2004]

i wish i could have got my car when i was 17 i guess it takes a while to save when u have to pay for it urself

 

[benflagg]

i wish i could have got my car when i was 17 i guess it takes a while to save when u have to pay for it urself

Cmon dude, that was a dueche-bag thing to say, for somebody who just asked about if its normal that his cai was making sucking noises.

 

[jdm4lyf9]

I agree its the intake, but then again I hear the air being sucked into the intake at around 3grand.

 

[mspHtown]

i wish i could have got my car when i was 17 i guess it takes a while to save when u have to pay for it urself

thank god ur contributing so much to this forum.



also the thread starter said his car is stock. so no cai.

 

[lisevolution]

Take it to the stearlership and let them look at it. Did you buy the car from a dealer or through a person directly?

 

[B1GHAM]

My advice would be to check the wastegate - definately sounds like a tear in the diaphram. @ full boost it causes the wastegate to whistle because of the tear...

 

[Jeremy16]

alright thanks. ill bring it in to the dealer.
and i bought it through a person directly. this guy was like so anal about the car tho, he like didnt even alow water bottles in it hah.

 

[msp35]

if you have a bov, (specifically the forge) then it does that @ partial throttle. It's the biggest piece of s*** I've purchased for my msp.

 

[MSPHXC]

Tryin not to thread jack, but I also have a question. IM thinkin my wastegate is goin b/c of that sorta screeching noise, but also i have realized that it seems to want to sort of hesitate when im in the higher gears. I have the split second afc and was wonderin if the split second would cause it to hesitate. Also I am running forged rods and pistons so where can I find a wastegate that can handle high boost?

 

[Jeremy16]

i feel the same thing, when accelerating i feel like im sputting a little.

 

[mspHtown]

i feel the same thing, when accelerating i feel like im sputting a little.

the stock fuel and timing maps are garbage. mazda did come out with a "flash" which i believe only advanced the timing but helped with the hesitation.

check this thread out:

http://www.msprotege.com/vbb300/showthread.php?t=123625276

 

[mspHtown]

Tryin not to thread jack, but I also have a question. IM thinkin my wastegate is goin b/c of that sorta screeching noise, but also i have realized that it seems to want to sort of hesitate when im in the higher gears. I have the split second afc and was wonderin if the split second would cause it to hesitate. Also I am running forged rods and pistons so where can I find a wastegate that can handle high boost?

what are you boosting?
what are you using to control timing for this higher boost?
are you using a general map on the a/f controller?
or did you get the controller retuned for the higher boost level?
do you have a wideband or do you know what a/f ratios you are at?

 

[reg_2004]

sorry about the gay thing i said b4 and hatin on the starter of this thread it was unnecessary and off topic i apologize