My stock L83 5.3 in the 2017 4x4 went 9.25 @ 75mph and 14.45 @ 94mph. Best results came from 4wd launch, full throttle power brake and TC off. Then shifted to 2wd after the 1-2 shift.

Biggest difference other than motor is mine is lowered instead of lifted.

 

Hmmm that seems a little quick for stock. I know your truck is a standard cab short bed but my Z71 stock went 9.70 @ 70.46 and 15.21 @ 89.86. 93 tune only best time was 9.22 @ 75.31 and 14.40 @ 94.78. Best e85 tune only pass was 8.91 @ 77.76 and 13.96 @ 97.05. I run my truck the same way just didn't think the standard cab short bed was that much quicker than the double cab with the same size bed. That would mean with a Klug Performance 93 tune your truck would possibly be running 13.6s and 13.2s with an e85 tune... I would have to say it sounds like you got one hell of a factory freak from what I've seen the other stock 5.3 trucks run at the track where I live.

 

^^^ yup the reg cab short bed makes a huge difference when comparing to my loaded Crew Cab. Gm needs to put a 6.2 4x4 in a rcsb from the factory. itd be a hot ticket.

with a Tune, catback and intake I went 8.8 at 78mph and a 13.8 at 99.

 

Yep if it were available that's what I would've bought.

 

I've gotta get to the track soon and see how I compare.

There's a highway on ramp near my house that's probably about 1000 feet (hopefully it's closer to 800 or so ft but it's also uphill) from the stop sign to a sign near where the entrance dumps onto the highway, when my truck was stock it hit around 70 mph at that sign. Now with the tune, on e85, magnaflow and flapper delete it's hitting 85-86, that's huge so I'm hoping to get near y'alls numbers, but 2wd is gonna f me hard at the track.

Y'all all cutting 2.0-2.1 60 ft's?
(Gorske, before your blower)

 

2.0 60ft here. (1.5 in my Syclone heh)

 

Thanks. I really hope I can get a 2.0, but I really doubt it since y'all are in the 4wd trucks.

Your syclone can 6.0ft 1.5, but I can almost put it in the bed of my truck lol.

 

You can probably 2.0 if launched just right.

haha gotta catch me first!

 

Hmm- starting to sound like I can settle for the 5.3...……………..

 

Personally I don't think its settling. With bolt ons and cam and cnc heads people are making 450whp. And the forced induction stock bottom record is like over 860whp.