8L90E I want a crisp shift. Seems to drag between gears

[67firebird455]

[QUOTE=6point2turbo;712642]

Tune still working good for you? thinking bout using it on my yukon denali with the 8 speed

Also wondering the same thing. I?ve already used credits on my 15 Yukon XL Denali, and would like to smooth out the shifting some? a bump in low rpm torque would be great too!

[67firebird455]

I get quite a bit of KR (consistently 3-4*) using Russ’ 2018 Denali 6.2 timing tables. The shift programming is much better, but need to find a way to smooth out the shift to first at 5mph, coming up to a stop, it bucks once as it downshifts. These things are a hell of a lot harder to tune than my 67, I’ll tell you that much!

[voodoo tuner]

Knock yourself out! The engine side is pretty much stock on mine as well. But this will show you what I've done to the trans settings.

Attachment 104136

bring this back i have applied your Trans Tables on my 2017 denali but before i load the tune in the car i have to make sure it will be doing the same results that it should do

because my TCM is T87A and yours is T87 and the OS is different .

[1scls1z]

Setting Upshift torque management to NONE doesn't seem to be a big deal on A8's. The ECU still pulls timing on the shift. Disabling Upshift "torque reduction" is what will shorten the transmission life because the trans will shift with full commanded timing. On lower power <600whp stuff the 8l90 will tolerate it, but when you start pushing past that, I would go back to pulling timing on the shifts. I set mine up to shift with 0-5 degrees of timing, then immediate recovery. Haven't had any issues doing it this way since 2017 on my car.