04 wrx 255 hybrid. common mods and custom tune. i get a pretty annoying ticking nosie coming from both heads, spark plug-injector area. NGK one step colder plugs and stock wrx injectors. walbro fuel pump. tgv deletes. car runs fine, just loud. any ideas? Thanks

 

Is that on warm or cold start up?

Forged pistons?

Have you checked all your coil packs to see if one is lose?

 

all the time, always loud. stock pistons. i will check the coils but i dont think they would all be lose.

 

How many miles?


Valve's lashed? Properly adjusted?

What size injectors? Sounds like the injectors firing off just really loudly.

 

Did a shop put the engine together? Has it always sounded loud since it was installed?

 

my heads are loud too

 

Damn that's pretty loud, and I've got a loud noisy motor with many ticks and etc that aren't my forged pistons

I've been told injectors or the timing is off

 

check your oil level..you probably need to adjust those valves

 

who did your build and tune?

 

Plus one.

 

My car sounds similar, stock motor 240k miles. Does it get louder as you rev?

Mike at GST told me I had noisy injectors, and it was pretty normal.

 

I get this alost whacking noise (sounds faintly like a belt hitting the timing cover o.0) on a cold start but it goes away pretty soon after maybe 10 or so seconds of doing it... any one else experience this?

 

Yes.

 

ya, im thinking its loud injectors too. what would cause this? age? and is there a way to possible fix this other then buying new injectors? injector cleaner?

 

I throw Lucas fuel treatment in at every oil change.

What oil are you running? Should be Rotella 5w40.

Your car isn't quite old enough for it to need valve adjustment.