Hi, Guest
07-11-2007, 12:25 AM
A few things to discuss re: shift points, and Ken, before I forget... thanks for clearing that up!
Daniel - your shift point for the ATX from 1st-2nd should be ~6250RPMs. I know the tuning software actually uses MPH increments to judge shift points. It would likely be easier to switch to the digital MPH speedo to get an accurate idea of what the stock shift point is and then make adjustments from there based on MPH vs. engine speed. My observed WOT stock 2-3 shift point is ~6000 RPMs. However, even my near-stock 2.0L will pull nicely to redline in 2nd and be over 120 KM/H by the time the shift is "called" by the shift lever.
The soot in the tailpipe is, from my understanding, too rich of a tune. If you're leaning it out WITH A/F readings saying you're ok... that's good. If you're just eliminating soot by adjusting fuel trims without reading A/F, you'll eventually detonate which is really not good. I didn't know you had a wideband installed Ken.
SVT_ZX3 - you're both right. WOT doesn't learn but does benefit from a flash the night before. The ECU only learns at settings between WOT and idle, but not inclusive of WOT.
I welcome corrections on anything I've FUBARed. :)
Daniel - your shift point for the ATX from 1st-2nd should be ~6250RPMs. I know the tuning software actually uses MPH increments to judge shift points. It would likely be easier to switch to the digital MPH speedo to get an accurate idea of what the stock shift point is and then make adjustments from there based on MPH vs. engine speed. My observed WOT stock 2-3 shift point is ~6000 RPMs. However, even my near-stock 2.0L will pull nicely to redline in 2nd and be over 120 KM/H by the time the shift is "called" by the shift lever.
The soot in the tailpipe is, from my understanding, too rich of a tune. If you're leaning it out WITH A/F readings saying you're ok... that's good. If you're just eliminating soot by adjusting fuel trims without reading A/F, you'll eventually detonate which is really not good. I didn't know you had a wideband installed Ken.
SVT_ZX3 - you're both right. WOT doesn't learn but does benefit from a flash the night before. The ECU only learns at settings between WOT and idle, but not inclusive of WOT.
I welcome corrections on anything I've FUBARed. :)
Daily driver 1: 2007 Jeep Wrangler Unlimited Sport "S"
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.