ANyone have 1/4 mile times on a regency rst 4.8L 5 speed?
#11
2.4 60 foot and your ran a 14.8 come on.
Here is my video and time slip link. I ran a 2.3 60 foot never missed a gear and 15.3
https://www.performancetrucks.net/fo...9/#post4789716
Here is my video and time slip link. I ran a 2.3 60 foot never missed a gear and 15.3
https://www.performancetrucks.net/fo...9/#post4789716
#12
I know I need a much better 60'. My truck isnt stock if your doubting my time I'm not sure from the way you wrote it, I have a cam and tune over you so I expected a bit better than it it. It has a posi and tires coming soon I'll see if I can get it in the 13's on motor.
#13
you can get there, just have to get the right setup going. i'm still working on mine. i'm down to little adjustments now.
mods: 6.0 LQ4, t-56 6-speed, 225/229 .585/.585 111lsa, 799 heads milled .030", tbss intake w/tb and dr.x harness, 44lb/hr injectors, lpp long tubes w/ory to a magnaflow catback (3"si/2.5"do), custom driveshaft, 4.88 gears, detroit true trac, caltracs, ta girdle cover w/ bearing cap studs, 16" stock alloy wheels w/m/t et street dr (28" tall), roughly 4600-4800lbs day of race, tuned by me with hpt.
Red04RegencyRST NPB 12.89 @ 107mph - YouTube
mods: 6.0 LQ4, t-56 6-speed, 225/229 .585/.585 111lsa, 799 heads milled .030", tbss intake w/tb and dr.x harness, 44lb/hr injectors, lpp long tubes w/ory to a magnaflow catback (3"si/2.5"do), custom driveshaft, 4.88 gears, detroit true trac, caltracs, ta girdle cover w/ bearing cap studs, 16" stock alloy wheels w/m/t et street dr (28" tall), roughly 4600-4800lbs day of race, tuned by me with hpt.
Red04RegencyRST NPB 12.89 @ 107mph - YouTube
#14
If you want a failsafe setup for a fun, reliable, and fast street truck, follow him ^. My man knows his **** and knows what works. Driving his truck made me want to swap my built/stalled auto out for a T-56. He's an RST O.G.
#15
aww... i want a T-56
have for a long time
somebody make me a t-case tail housing!!
the best i've been able to do so far with just intake/headers/tune on my tired ol' 5.3/5spd is a 2.1 60' & 9.6 1/8 (no 1/4 anywhere close
) granted, that's with 31.5" tires
have for a long timesomebody make me a t-case tail housing!!
the best i've been able to do so far with just intake/headers/tune on my tired ol' 5.3/5spd is a 2.1 60' & 9.6 1/8 (no 1/4 anywhere close
) granted, that's with 31.5" tires
#17
Zebra - I believe that a member in here had an avalanche with a t-56 with a modified tail housing and a transfer case for a 4x4 application.
1979 - have you done the drill mod on your hydraulic line from your clutch master to slave? It won't completely correct the problem, but it will help. Do a search in the rst writeup for drill mod, I linked it in there somewhere.
1979 - have you done the drill mod on your hydraulic line from your clutch master to slave? It won't completely correct the problem, but it will help. Do a search in the rst writeup for drill mod, I linked it in there somewhere.
#18
old fluid = double-clutch 3rd above 5000rpm
new fluid = normal shifts at 5500+
...at least for my truck
zebra - I believe that a member in here had an avalanche with a t-56 with a modified tail housing and a transfer case for a 4x4 application.
1979 - have you done the drill mod on your hydraulic line from your clutch master to slave? It won't completely correct the problem, but it will help. Do a search in the rst writeup for drill mod, I linked it in there somewhere.
1979 - have you done the drill mod on your hydraulic line from your clutch master to slave? It won't completely correct the problem, but it will help. Do a search in the rst writeup for drill mod, I linked it in there somewhere.
and the drill mod only works on the new style clutch line with the quick connect at the master - lucky y'all
#20
If the quick connect is at your master, the end you need to drill at your slave. That's where mine was. I had to knock out the roll pin that held it in the slave and then did the drill mod. So if you have the old setup there is hope, but it requires you to drop the tranny to remove the slave.


