7.50g/cyl??? the table only goes to 1.2g/cyl

Grams per Cylinder is figured by: [(grams per second) x 15] / engine RPM

Here is one of my older timing tables just for referrence on the lower rpm numbers (i'm boosted too, so you can get away with more -be aware of knock):

 

Here is my latest table.

I was way wrong - I'm only at the mid-teens down low - I looked at a log and thought I was set to 20 down there.

I just looked at one of my runs at the strip, and I'm actually getting something very similar... I just never paid any attention to it.

Here's it is...

This was before headers... and I cut a 2.13 at full street weight and near full tank of gas. I thought that was fair, so I never looked into the timing dip.

 

Are the 03+ trucks running drive-by-wire TB's? If so maybe the electronics are not reacting fast enough when snapping the throttle wide open from idle. I know my father's 04 Furd and my 03 Hemi does not have the crisp throttle response that the cable/TPS system has. Just a thought...

 

Yeah, 03's are running DBW... Mine definitely has nice sharp throttle responce, but I'm not sure about how quick it's opening vs a standard cable TB. You can get an idea of how mine opens - it's the green line in my scan above...

 

I have an 02 with a cable throttle and the same timing problem.

 

I have HP also and have the same problem. Are you throwing a code 101 MAF error? I was and changed the code trigger values- it seems to have worked SOTP, but I haven't mapped it since.

Ed

 

Oops,I was wrong.It's at 0.63g/cyl.. Im going to try playing with the High octane timeing table a little and see if that works.When would i have to use the low octane timeing table?Dont it read off that table if you get bad gas or alot of knock?
Mark_w for some reason i cant see the tables in the links..I get "Unable to load graphics conversion filter".I would like to see them.
It's throwing no code.

 

Did you figure this out on your timing yet?

 

I have been adding a little timeing to 60-72g/cyl to 2000 rpm at a time and it looks a little better..But, Im still getting the timeing dip..What would smoothing do?