How much boost are you seeing??

 

about 3 lbs i think. i was seeing 6psi with the5.3, but i probably lost the psi due to the larger motor, and cam.

 

i keep showing a lot of rich correction on my long fuel trims and short fuel trims while driving around at 2000 rpms. when i nail it. both the short and long fuel trims are at 0. On bank 1 sensor 1 oxygen sensor it averages a .579 it will go to around .700 or .800 then drop to like .030 and then go back up and down while cruising. when i mash the gas, its around .900

 

ltft are at 0 @ wot and 900mv @ wot, looks good there.. donnt worry how the fluctuate during cruising,

 

don't bother trying to tune from the stock 02's....they will tell you nothing except that there is fuel in the exhaust !!

 

hmmm,, got my idle fixed, i just cranked on the screw and ajusted teh set screw so the throttle sensor read 2.4 percent, then i unhooked the sensor, turned the truck on, turned the truck off, and hooked the sensor back up, and bam it reads 0 persent, and it idles perfectly. now if i can just find out where my power is goin. my fuel pressure was above 60 psi at wot in first gear. so i got plenty of pressure.
so something else must be the culprit. or else i just spent over 2 grand on a 6.0, cam, stall, and lost a second in the quarter!

 

my 43 # injectors are tuned to 5.15 across the board. is that about right? my whipple computer is unhooked, but i have yet to do the bypass valve mod. im fixin to do that.

 

anyone want to look at my tune? i got till tonight to fix this puppy. i got a road trip tomorrow. my truck seem to run fine, just way underpowered. im fairly sure a stock 5.3 could out run me

 

it's your timing. it needs to be increased quite a bit. e

 

yep, do a log on your timing and let us know what it is doing.
log these things.

timing
knock retard
rpm
throttle pos
b1s1 o2
b2s1 02
speed

oder a 3/8"-1/2" smaller pully too. your giving up alot of power there.