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thought this would be a good start to a thread, list gears, tire psi, and what posi unit your using and brag your 60' times. See if we can find out who's got the magic combination for a good launch.
My best is 2.30 with 3.08 gears 30lbs and a open diff, not so good I know I hope this thread can give some good combo's to try out.
I've gone 2.1, but averaged 2.2 the last time I was at the track. 4.3 5speed, 3.23 w/G80, stock bald 245/70s. Launching at 3500 and slipping the clutch. My truck has changed a good bit since I've been to the track, so I have no idea what it'll do now. The NV3500 has a very low 1st gear, so if it hooks, it up and goes alright.
#1 is get a good gear and locker in there. That 3.08 is killing you. A stall and good tires is next. Then more power.
1.68 60ft, 11.5 wide Hoosiers, 14 bolt, 3.08 gears, Eaton LSD, caltracs, spraying about 250 out of the hole, 93 ECSB with wimpy 408.
1.60 60', running 315/45R16 mickey thompson ET street drag radials, cal tracs, 4:11 gears, detroit true trac, 60e, with a yank 3600 leaving on a 100shot in a 5.3, best ive got with the 80e is a 1.71 i believe, but it also has a 3200 stall.
1.63, eaton lsd, 4.10's, tb stall, 150 shot on 28" 10.5/16 hoosiers
2.0 60'........4.56's/Detroit Tru Trac/Cal-Tracs/Hoosiers 16x10.5 @13psi (NO Stall converter :( )
best i could get was a 2.38 on 5 yr-old 265/75-16 Michelin LTX @ 26#
stock~enough 5.3 slipping the clutch a bit on a 2000rpm launch with 3.73
1.78, 4.10s true trac, 6.0 , 65e, 3000 tci, 150 shot, on gm ltz 20s, 275/55 20s
1.81 sixty foot, 4.56's, 14 bolt trutrac, h/c 6.0, PI 3600 4L65E, 37" tires, launching in 4wd