I'll be working on mine today, but I am hoping that the culprit is my MIVEC cam gear. Just makes no sense after swapping out to a fresh new short block from Mitsu, 0 miles that the same exact noise continues after the same amount of warm up time.

I'll post my results after.

 

OK hope it is man, I won't be able to look at mine for at least 7 more months lol, currently deployed, hopefully when I get built it doesn't return

 

Update:

Swapped out MIVEC gear, and the super loud noise under boost is gone, but the really loud lifter ticking like/knock sound form head still remains.

I swapped out lifters, bled them, still same result.

Now I am on to believing it could possible be my BC camshafts in the car.

 

Hope all goes well so you can, start enjoying , what cams will you be going to replace it with? Just going back oem for diagnostics purposes? Are bc known to problematic?

 

I bought OEM Camshaft set off a Evo IX off a user. Said they only had about 30k miles. When I discovered I had BC, I did some research and most claim they are a pretty bad cam set.

 

Update:

An entire brand new short block, and countless parts thrown at this. The issue ended up likely being the Camshafts. While I am getting some ticking noise due to the lifters which will probably get quieter over time, I can say the ticking noise is much quieter and almost not even comparable to the loud ticking noise I was hearing before since swapping back to OEM Camshafts ( I had some BC stage 2 before that previous owner had put )

A very expensive lesson, but glad I can finally drive the car a bit now and break in the clutch and put some miles on the new short block.

 

Unfortunate to hear that, I have read that somewhere with the BCs. The casting has caused issues.

Glad you got it figured out!

 

How has it been? Hopefully its running great and you are enjoying it!

 

Car is running great! There is still some valve-train noise that bothers me a bit, but I've learned to just sort of live with it. I've done my engine oil changes and broken the short block in. Not metal shavings, and runs like a top.

Maybe someday I'll re-do the head with brand new everything to get rid of the noise. For now though, I'm just enjoying it before winter hits.

 

Definitely enjoy, it. I can't wait to get my functions again! Already retuned ?