Hahaha, believe me, when I drove the car after that I felt like "ok, it doesn't feel like 450hp! It is 450 with that Vortex, right? Right!?". It sounds that bad, mate. 😃
Yep.. I am waiting to receive my hydraulic jack, as last time I borrowed one from a friend and then will pull the box down. Will inspect what I can inspect.. will change the pilot, at least I can easily do that. If the noise remains, I can put the stock fw and clutch for the test... then will need to open the box.
At least I wanted to verify that this noise isn't part of the "chatter". Thanks guys. @ZMANALEX, by crank pilot bearing, you mean the bronze one, right? That the gearbox mainsfaht goes to?
Amm two more things
1) The only suspicion that I have is, if by not engaging* 2nd gear properly, something is now twisted or disaranged. Like fork, sleeve or a gear. And if there is some contact between metal parts due to twisting. Or some bearing is disarranged axially. But if that is the case, the noise should be there all the time, not only when there is a load from the engine. Or if there is a twisted fork or sleeve on a specific gear.. the noise will be only when this gear is engaged.
2) It is still confusing me, why if the car is.. lets say on 3rd gear, so both main and counter shafts are spinning, if I engage the clutch pedal so the traction disk is not pushed by the pressure disk anymore, the noise disappear. Even if I rev the engine with engaged clutch pedal.. everything is spinning (crankshaft, clutch, CSC, main/countershafts). The symptoms are just... amazing 😖
*By not engaging I mean.. the grind when a tooth meets the opposite tooth, like.. if you try to engage a gear by not engaging the clutch pedal. That painful grind.
Thanks for the answers, wish me luck. I will update the thread once I have more info. Hope it will not take too long.