im having a sucking noise under mild acceleration between 2300 to 3500rpm.
is this detonation or what? doesent sound that much like a ping sound to me.
or is it just a normal sound?

the car is a 93 miata with diy turbo kit and MSpnp.

 

you has turbo.

i assume it sounds like this:

 

lol... reminds me of the story where the old guy bought a turbo'ed supra from a kid and brought it in to the dealer 3 times with a complaint that it "wooshes" between shifting each gear...... needless to say he sold the car to MY friend and my friend found the complaint papers in the glovebox

 

lol..
no this sound disapers when i accelerate a little harder its just under wery light acceleration. when you pick upp a litle speed from cruising and its still na.

 

Loud air filter? Just fill your engine bay with foam and you won't have that problem anymore.

 

possibly a leaky bypass valve...

 

Fixed that for yas.

 

that's the sound of your life.

 

or your mouth

 

WTF?

 

yeah.... you just contradicted yourself in two posts