Track update
60.........1.77
330.......4.59
1/8........6.90
mph...106.33
1000.....8.90
1/4......10.58
mph...133.33
This is a stock 5.3 with a 216/220 cam, 16.5psi in high gear, 14* of timing. 93 octane only. Only left with 1.5psi...I'll work on that. Does the mph sound about right for 16.5psi? Converter slip was around 8.5%. Overall happy with the way it was running.
I also ran through a full 2.5" dual exhaust which may shave some mph.
I have a 5.3 L33 with a 218/218/212 cam, billet S475, 4L80e, 8.8 rear with leaf springs and caltracs. I've ran it at 20 PSI a couple of times. I think its about 200-300 lbs lighter than your mustang. Gives me high expectations for my times knowing you did so well at your weight and boost level.
It might be heavier than I even think with that damn s475 in there, i/c and charge piping, 2 wastegates, DS loop and full dual exh. Need to find some scales.
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Just need to find room to install a cut-out. I have the cut-out sitting on the shelf.
Does 133mph seem light though at 16psi? The last 5.3 with the LS6 cam did the same. Been meaning to try running w/o air filter to see if that would make a difference but don't have the ***** to run w/o one:
Also, I wouldn't worry one bit about popping the filter and tube off at the track. I do mine with no concern. And your filter looks relatively small so I'm sure you'd pick up some.
Also, I wouldn't worry one bit about popping the filter and tube off at the track. I do mine with no concern. And your filter looks relatively small so I'm sure you'd pick up some.
My airfilter is 7" long, it was the biggest I could get in there. I was thinking of installing a back pressure gauge to see if the engine was possibly working too hard for whatever reason to make the 16psi.
I was going 143 at 17lbs with an 8.6:1 5.3... same turbo. 2840lbs race weight. Which calculates to 665hp. At 3600lbs that would be 678hp.
http://www.wallaceracing.com/et-hp-mph.php
For those that don't want to watch the video the results were:
60' - 1.77
1/8 - 7.06
MPH - 107.27
1/4 - 10.679
MPH - 136.84
With that being said, a 5.3, 93 octane, and 14*, I think you are doing alright. I was on E85 and 18* of timing.











