buddhaz06

iTrader: (8)

Where to start... I have an 01 z06. Its auto swapped, and I had heads, cam, fast 90 and ls7 manifolds. I had to have my transmission looked at so I did s few things while it was down. I replaced the big ported 243 heads with some stock 243's and put headers on and went to a Vic Jr/elbow. My o2's weren't reading last time I tried to have it tuned so I got new ones when I did all this stuff. Now I have a what I would call pinging under a heavy load. 75% throttle or higher. The higher the louder the noise. The coolant temp goes up just a little bit when It makes the noise and I stay in it. The noise sounds like a tinny noise from the header. Sounds like gravel in my fender well kind of. Has to be over 3000rpm. It's done it ever since I got the car running except for one night it didn't do it at all and it ran smoother through the rpm's. I just put in some 110/91 mix fuel and filled it up but haven't got it to mix in and drive it much. Started raining.

Basically what I'm doing is trying to get the noise to go away again by something I can change to get a direction where to go with it. I want to get the car retuned but I don't want to go get it tuned just to find out I have a bad head/gasket problem. If I know it's tune related I'll gladly go get it tuned and be done worrying. Any advice would be awesome!! I have a snap on solus scanner and s couple buddies with hand held stuff that we can read data if I know what to look for. Please help! Thanks in advance!

PREDATOR-Z

My first advice would be to post in the right section forum.

garygnu

your A/F mite be off with a lean condition.have your knock sensors checked.consider a mail order tune by Frost.

buddhaz06

iTrader: (8)

Sorry i figured head swap or head gasket or warped head was internal

2000ultraZ1911

I hear ya dude gotta love the forum police that don't realize this is where all the ppl that know stuff are looking. Good luck with ur problem bud.

PREDATOR-Z

The people that know stuff do so because they learned and researched in proper areas instead of piling a bunch of crap all in one spot.
Things in life have to have some degree of organization. If you paid attention to your teachers, you would have understood this concept a long time ago; well at least by Junior High