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Does anyone have a Allison 1000 tune that has the " Flare and Bump " fix that GM warrantied?
I am trying to tune the problem by adjusting the 2>1 downshifts I think that's causing the problem but...

Anybody know why in the stock tune for the part throttle downshifts, the 0 % TPS downshift speed is 2 mph higher than the 6.3 % ?
I have a 2002 Allison which has a known problem called a flare and...

My 2002 8.1L Spark table has a big drop in the 800 to 1400 rpm range. At 1600 rpm it jumps back up to normal. Is this timing drop of about 15 degrees supplemented by the EGR Spark Correction? Or is...

I've had EFILive for 3 years but never changed the stock tune. I want to start by doing a seat of the pants tune on the WOT PE for this 2002 8.1L. The stock setting range from 0.87 to 0.81 as rpm...

B6612 limits throttle opening, it's used for torque management. I have no doubt that this is limiting performance. An 8.1 litre engine should fry the tires when you stab the throttle, this truck is...

No I didn't change the throttle cracker or follower, all stock settings. I just tried setting the B6612 to 100% in all fields. The throttle hangs open after you release it. Back to stock settings and...

Anybody have a working performance calibration of B6612 for a 2002 L18? If I set all the fields to 100% the throttle hangs open for a second after I release the throttle. Not good.

2002 Silverado 8.1L L18 with 5 sp Allison auto trans.

Anybody know if the value of the cell B1901 is merely used for calculating in other areas or does it actually limit your max torque?

I...