i originally had a stock 01 gsr with skunk2 stag1 and valvetrain... for about 5 months it was runnin fine... then i put on the msd6al ignition, rc 310 injectors.. and it was fine for about 3 days then as i was about to put in the p72 skunk2 chipped ecu... i noticed when the car was warm and i started it up there was a knocking sound... idk exactly how to explain it but it sounds like it knocks a few times and has a hard time starting... it idles fine except it jumps a little bit about 1000-1200 rpms but notin too bad... anyone have any ideas at what it could be... also when im at around 3k -4k i hear like a metal grinding noise.. thanks

 

tt

 

anyone

 

more info would help, where is it commong from?top end, bottom end, tranny...

 

sounds like top end... realy hard to tell though

 

are the souds the same??? at idle and at 3-4k??? 3-4k could be detonation..but my motor knocks/ticks loud at startup.

 

no... the sound at start up is kinda like if ur shuttin off an OLDER (shot) engine and it doesnt want to turn off and its knocks kinda.... thats the sound at start up... then i hear a faint metal sound at 3-4k... not nearly the same noise... i have a feeling is something loose ... what could i check i think its something in the head