4l80e 4000 stall
Thread Starter
Joined: Sep 2012
Posts: 257
Likes: 18
From: Colorado Springs, CO
4l80e 4000 stall I just had a quick question about the tuning for a 4000 stall because I have never had one this loose. The setup is a 228r cam and bolt-on 6.0 with a 4l80e, FTI 4000 Hard Hit stall, and 3.42 gears in a 2002 blazer. The question I have is in reguards to the MPH shift tables. I had to lower the speeds in the normal, WOT, and TCC tables to make it shift where I wanted it to. For instance, I had to set the TCC lockup to come on at 30 for light throttle to get an actual lockup speed of 45. Same with the normal tables but not such a large jump. I can post a tune but everything is where I want it and when I logged, the data matches up so it’s not mechanically missing the shift or something. This same setup had a 3600 stall and everything was perfect but it wasn’t a hard hit. Thanks in advance, I have searched pretty much every keyword to try to find an answer with no luck.
Thread Starter
Joined: Sep 2012
Posts: 257
Likes: 18
From: Colorado Springs, CO
For anyone that stumbles across this, I got it figured out. The box under Speedo>Calibration>Gear Ratio and Tire Size was off. I'm not sure why it didn't update correctly like the VSS box with the gear/tire wizard but I took a stock 4L80E tune and did the wizard for my tire size and gears and put that number in my current tune and all is spot on now.
