Well it rained yesterday so I couldn't log anything but today I did. I was at 6% low, 7% mid and 12% high. Still had knock throughout the run but it was lower. I added 1% more to mid and high however, the place where I was making my runs started to get crowded with traffic so I couldn't log anymore ...

Thanks, I'll give it a try tomorrow and post the results when I am done.

I thought I had the retard down but today I ran a 0-82mph run and had st knk the whole way through. It ranged from 1.5-4.5 and I also have lt knk above 78mph, it gets up to 2. I noticed this two days ago on a 0-80mph run. Both runs were made with the car at 200 degrees. Right now I have added 5 ...

Well I did have some st knk retard during WOT. Was getting up to about 3.5 in lower rpms and up to around 6 above 5000rpm, so I added 5% across all ranges. It's now down to 1 or 1.5 in the lower rpms but still up to 5 in the higher ranges. I will bump up the fuel in the high rpm range to 8% and see ...

I added 3% fuel and it pulled harder. I haven't done any datalogging yet so I may bump up the percentage if everything is ok.

Thanks. I guess I'll try it and see what happens.

I have a 2006 Charger SRT8 and I've only added a CAI, Magnaflow Hi-Flow Cats and Magnaflow Catback. The gas octane rating over here is a bit different as it says 98 but is really 93 or 94. Should I add fuel with these mods seeing as I don't have longtubes? Thanks for the help.