noise

I'm trying to identify the source of this buzzing sound. Setup: -Gen2 gearbox rebuilt and fitted with a Quaife lsd. Fitted on my gen 1. -Rey's cables. -CS stage 2 rmm. Hardrace (OEM+, full rubber) side mounts. It shifts perfectly, works well, no problem. Oil is fresh - Motorsport CRX LS 75w90...

So I just rebuilt my hpfp with e safe orings and have been driving it no issues at all. Then did a minor low gear pull and immediately lost the high pressure in fuel and it started making a horrendous clacking. Only info I have on hand is if I unplug the pump. The noise nearly stops completely...

I finished my port injection setup and I have noticed a strange issue. I thought I was alone in this but it appears that @andale927 and @Bigelow have similar issues. The issue I have noticed is that the FPR is pulsing, it will pulse + or - 3psi at idle. This pulse can be both heard and felt in...

Disclaimer: Tried to search, but there are SO many threads on weird pop/thud/clunk noises I can't comb through all of them. I installed a used street unit RMM recently a mazdaspeed bro hooked me up with. It's in good shape, rubber is intact. It was a bitch to get in, felt like it was too...

NOTE: I have transferred this thread which was created by me on another forum in hopes of helping someone else! Hello fellow MSO'ers, So I've been having a hard time with this weird hum noise under boosted acceleration on my '07 speed 3. I've got some mods done to it, but I have no idea what...