| Knock on 150 shot - scan inside...Guru advice please |
Subject: Knock on 150 shot - scan inside...Guru advice please by jonecap on 2008/6/29 18:21:58 Gurus...help. I can't figure out why I am seeing knock at certain rpms. The link to my datalog is below. I started out with the bottle coming on at 3,000rpm and then changed it to 3,500 rpm later in this scan. This is with 150 shot jets on a stock(tuned) LT4 with a hotcam. I had the car on a dyno yesterday and it made 498/547 with the A/F being pretty rich. I have a FJO Progressive Controller bringing the nitrous on at 30% and ramping to 100% over .4 sec. With 100 shot jets I don't see any knock. What's up with this...help please?? http://www.scandepot.net/viewscan.php?pk=5142 Thanks in advance for your advice! |
