K ive got a d16a6, fully built high compression what not. and its been running super strong for the week i had it in the car, but today it starting making almost like a knocking noise. Sounds almost like its in the oil pan, but not sure. I loose power at 5500 rpms.. at idle its semi loud, but as the motor revs higher it fades a little.. I know its not a rod knocking. not a valve. what the hell could it be! please help with ideas or suggestions, remember this is a fresh motor, had 0 miles after i was done working on it. just passed 600 miles.

 

try to check your engine water pump. Maybe its time to get new one. hope it will help.

 

hurm, cause i just put a new water pump in. n then it started kocking, but it really does not sound like a rod...