So first a rundown of the build....
2005 silverado 2500 street/pulling truck.
416 inch, 823 heads, 13:1, btr custom cam, 24x crank, 1x cam, drive by wire 87 mm with x link, e85, 100 lb injectors, stick coils.....
So like the title says around 7000 rpm this thing let's out a pop in the exhaust. Rev limits are set at 11k. In the logs I don't see a drop in injector pulse, timing, voltage, tps, nothing. No odd reading from sensors, no drop in cam counts.
I've done a lot with these ecus. swaps, forced Induction, nitrous, where I've got to scale down injector data to keep airmass below 2.38, we had spark gap at .030 so we tightend it to .020, afr's have been from 12.8 to 11.5, fuel pressure is good. I'm using a 1 bar speed density enhanced os.
It will pop on the pulling track, and if I do a power sweep on the dyno it will do it. I feel like I've heard something like this before but I can't find anything. I'm doing this from my phone so no way to post a file but I will when I get the chance tomorrow.
Any help is greatly appreciated
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Originally Posted by blindsquirrel
