Who does your tuning? Do you still have your stock TB? If so throw that on and see if you still get the ping. Seen lots of issues and trouble tuning larger TB's over the years with funny behavior. With those few of mods there should be no reason to go one step colder on plugs
Pretty good increase in numbers. When you say non-mds cam, is that a stock non-mds cam from another vehicle or like a comp cams non-mds cam? For a stock cam those numbers seem solid but with a cam id suspect more than that. I put down 404 tq and 407 hp on stock tune and just an intake on 91
Pretty good increase in numbers. When you say non-mds cam, is that a stock non-mds cam from another vehicle or like a comp cams non-mds cam? For a stock cam those numbers seem solid but with a cam id suspect more than that. I put down 404 tq and 407 hp on stock tune and just an intake on 91
looking at that graph, is it possible you have to much timing down low? your HP and Torque fall off low, mine pulled and made HP all the way up to the stock 6200 redline as with most others I have seen. You make HP really low and then it falls off quick. Attached mine for reference. But you can see your stock numbers climb the same as mine. Then after the tune its all down low and falls off up top.
looking at that graph, is it possible you have to much timing down low? your HP and Torque fall off low, mine pulled and made HP all the way up to the stock 6200 redline as with most others I have seen. You make HP really low and then it falls off quick. Attached mine for reference. But you can see your stock numbers climb the same as mine. Then after the tune its all down low and falls off up top.
I know for sure that timing is being pulled too much down low with audible pinging/detonation... I'm still trouble shooting and trying different things at the moment.
Who does your tuning? Do you still have your stock TB? If so throw that on and see if you still get the ping. Seen lots of issues and trouble tuning larger TB's over the years with funny behavior. With those few of mods there should be no reason to go one step colder on plugs
Stock TB no difference. Cleaned MAP and IAT sensors too also no effect.
I did however discover that my intake manifold was caked up with gunk... My UPR catch can is not doing a very good job. Next, I'll clean the injectors with a sonicator and check spray pattern/volume.
Got some updates for anyone interested:
1- Injectors were good, regardless I had them cleaned and it made no difference.
2- Bought myself a MPVI2+ (hp tuners dongle) and started digging deeper. Long story short, my tuner raised the threshold for knock sensors way high (about 2x the stock setting), in addition to finding multiple modifier tables zeroed out, meaning the ignition timing was not responsive to things like coolant temperature, air intake temperature...etc Needless to say I removed that tune and now the pinging is mostly gone.
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