Hit 13s in my Z71 tune only!
10-13-2017, 10:50 AM
#11
10 Second Truck Club
Our season is over, the rains are here. In the spring I am going to tune for 92 pump for daily use and flex fuel the truck so I can toss some e85 in whenever I feel like it. We'll see if it goes any quicker.
10-13-2017, 12:08 PM
#12
Took my truck to the track today and finally hit the 13s! My best two times were 14.016 @ 96.38(1/4) 8.925 @ 76.99(1/8) 1.94 60ft. and 13.967 @ 97.05(1/4) 8.915 @ 77.76(1/8) 1.96 60ft. vs the stock time of 15.219 @ 89.86(1/4) 9.703 @ 70.46(1/8) 2.13 60ft. which I think is a huge gain for a 2017 Silverado Z71 Double Cab 5.3 4x4 that weighs 5500lbs with me in it 3.42 gears, 265/65/18R wheels, Spintech 6000 muffler, K&N drop in filter, e85, and most important the Klug Performance tune. It was 47 degrees today with a DA of 865. I launched the truck in 4wd, kept it in 4wd, and manually shifted it to 6200 rpm in each gear for both passes. He thinks we can still get another tenth or two from some more changes. I am very happy with how the truck is now. Just shows what these trucks are capable of. 
It's just releasing the clutches, not going to do any damage
10-13-2017, 12:15 PM
#13
what's different about these motors than the 99-07 5.3? I had a stock 5.3 run 13.88, but it was a hell of a lot lighter and also a lot more mods.
2001 ECSB 2x4, removed front seat and rear seat, short belt, CAI, ported throttle body, longtubes, cutout, removed tailgate, 4.10 gears, tbss stall, 26" et streets, underdrive pulley, tune. I was the only one that I knew of that made it into the 13's on a bone stock 5.3.
I think that truck was around 4,300 race weight. it's crazy to me that a 5.3 now days runs 13.9 in a 4x4 on tune only.
2001 ECSB 2x4, removed front seat and rear seat, short belt, CAI, ported throttle body, longtubes, cutout, removed tailgate, 4.10 gears, tbss stall, 26" et streets, underdrive pulley, tune. I was the only one that I knew of that made it into the 13's on a bone stock 5.3.
I think that truck was around 4,300 race weight. it's crazy to me that a 5.3 now days runs 13.9 in a 4x4 on tune only.
10-13-2017, 12:34 PM
#14
TECH Apprentice
Thread Starter
what's different about these motors than the 99-07 5.3? I had a stock 5.3 run 13.88, but it was a hell of a lot lighter and also a lot more mods.
2001 ECSB 2x4, removed front seat and rear seat, short belt, CAI, ported throttle body, longtubes, cutout, removed tailgate, 4.10 gears, tbss stall, 26" et streets, underdrive pulley, tune. I was the only one that I knew of that made it into the 13's on a bone stock 5.3.
I think that truck was around 4,300 race weight. it's crazy to me that a 5.3 now days runs 13.9 in a 4x4 on tune only.
2001 ECSB 2x4, removed front seat and rear seat, short belt, CAI, ported throttle body, longtubes, cutout, removed tailgate, 4.10 gears, tbss stall, 26" et streets, underdrive pulley, tune. I was the only one that I knew of that made it into the 13's on a bone stock 5.3.
I think that truck was around 4,300 race weight. it's crazy to me that a 5.3 now days runs 13.9 in a 4x4 on tune only.
10-13-2017, 01:04 PM
#15
Hell of a tune for sure, is that stock stall-2500ish rpm? Any idea how much power the DI injectors will support? And if nothing has changed with the AFM (lifters) no worries up spinning the rpm up that high?
10-13-2017, 01:34 PM
#16
10 Second Truck Club
I also ran it the same way but as soon as it was out of the hole flipped it to 2wd. Only difference was alot less vibration after 70mph, still ran a 14.4.
As far as power goes, stock 5.3 injectors and hpfp seem to do mid 500's before they're starting to max out. People have done electric lift pumps down on the frame rail to assist, as well as LT4 hpfp and injectors too and been much higher. Oh and a larger fuel pump lobe on the cam.
Allenp was at like 734whp on a procharger on the stock bottom end, now he's at 868whp/811wtq on a turbo. He does spray meth on top of those fuel upgrades tho.
10-13-2017, 01:52 PM
#17
TECH Apprentice
Thread Starter
I ran mine in 4WD Auto for the full pass, it ran a 14.4
I also ran it the same way but as soon as it was out of the hole flipped it to 2wd. Only difference was alot less vibration after 70mph, still ran a 14.4.
Damn, 6400? I'm still revving to 5500.
Mine stands on the stall in 4wd at 2500 dead-on.
As far as power goes, stock 5.3 injectors and hpfp seem to do mid 500's before they're starting to max out. People have done electric lift pumps down on the frame rail to assist, as well as LT4 hpfp and injectors too and been much higher. Oh and a larger fuel pump lobe on the cam.
Allenp was at like 734whp on a procharger on the stock bottom end, now he's at 868whp/811wtq on a turbo. He does spray meth on top of those fuel upgrades tho.
I also ran it the same way but as soon as it was out of the hole flipped it to 2wd. Only difference was alot less vibration after 70mph, still ran a 14.4.
Damn, 6400? I'm still revving to 5500.
Mine stands on the stall in 4wd at 2500 dead-on.
As far as power goes, stock 5.3 injectors and hpfp seem to do mid 500's before they're starting to max out. People have done electric lift pumps down on the frame rail to assist, as well as LT4 hpfp and injectors too and been much higher. Oh and a larger fuel pump lobe on the cam.
Allenp was at like 734whp on a procharger on the stock bottom end, now he's at 868whp/811wtq on a turbo. He does spray meth on top of those fuel upgrades tho.
10-13-2017, 02:30 PM
#19
I would bet the 5.3 being so closely related to the l86/lt1 would have a similar redline
The lt1 has a stock redline of 6500 in a c7. The same motor in the truck has a redline of 6000rpm.
Might make you feel better about revving it out.
10-13-2017, 02:43 PM
#20
TECH Apprentice
Thread Starter
I started at 6000rpm, then went to 6200 rpm, and now at 6400 rpm. I have made about 10 passes at the track and a total of 15 logged passes with my shift points at 6400 rpm. No valve float shown in the logs and shows no drop in power in the logs also. Truck has just over 12,000 miles on it now probably 5,000 miles with the shift points at 6400. Day to day the truck is only reved to the stock shift points and drove like an old man. It is only reved to 6400 at the track, when doing tuning logs, or from a stop light here and there. If there ends up being any issues like valve float or god forbid valve breakage I will let you guys know.
Last edited by Gorske; 10-13-2017 at 03:18 PM.