jeff, my a/f is very similar to yours. that lean blip at ~5k rpm is what i have too. do you think it could be the nismo cams?? i kinda think so; these cams need to be tuned to optimize their performance. i was hoping technosquare would be able to do this, still waiting......

 

My car is down for the StopTech big brakes today and next week is the audio/video system from hell install. So I wont be able to get back to T/S until the end on Nov.

 

Jeff
I have a reappintment with Techno Square today and will post results after Stillen dyno. The pulleys feel great and Rocky advanced the timing 2 degrees helped a lot. Thanks for your assistance.. Ive got to slow down on this mod thing. Ron's ultimate Mod ... 2004 Black on Black Base''Z''''''''

 

Hey Ron.... Won't the download from Techno Square overwrite your 2 degrees of advance we put in???? You might want to ask them.

 

I don't know I'll ask. If it does, can't Rocky put it back in after techno takes care if its issues.....? Heck you guys are the race guys I'm just a money funnel...Sure glad I didn't get into boats..

 

No problem!

 

trust me.. the 2 degree advance will be overwritten with an entire map with ignition timing advances throughout the RPM band... so you dont have to worry...

 

BTW Jeff started the car this morning No sqeeal,chirp or hum.. and it was freezing a$$ cold and moist. Maybe your belts are the wrong ones or maybe Rocky does a better job on silver Z's No complains from me.............

 

that is SOOO FUNNY because Jeff and I went out to his car and started it 3 or 4 times and NO SQUEAL! Very odd!

 

Alright, this is just too strange. But it's gone. No more noise. Guess it was just too much partying the night before!!!

 

Jeff the startup squeel comes and goes for me, sometimes for days. So don't be surprised if it comes back!

Removing that plastic cover is such as hassle i'm just waiting till I do my next oilchange.