Torque management in action

[Brayden]

The only stacking going on in that trucks is with the bills... LS6 crate motor,MP112 Radix Maggy intercooled, rear end, tires, tires, tires, tires, tires, diffs, tires

I'm gonna have to get another turbo now.. Fockers

[Danville Performance]

Better get two just to be on the safe side. Hehehehehe! You should hear it with the dump plate off, sounds like a nascar!

[Brayden]

Well I've already got one.. Two will do just fine I'd say

[joecar]

Some pictures (from my friend's car)... Ouch..!!

[agreif]

Hey, is there any way I can get a look at this graph again?

Thanks,
Andrew

[joecar]

Andrew,

The diagrams were lost when the forum went to a new engine.

The diagram showed that during a gear shift, the spark advance went to something like -5 degrees for about 0.2s and then went back to 25 degrees;

the point being that torque is reduced only for a very short time;

the amount of torque reduction is programmable, there are tables for this in the transmission calibration.

[Travis@FIR]

Does TM affect throttle plate opening between shifts on Electronic TB equipped vehicles? The timing drop explains the "pop" that I'm getting between shifts.. but I was wondering about the throttle plate opening/closing. Also.. under partial throttle/boost situations.. the ECM sometimes goes into "reduced power mode". Turning the key off, and then back on again, fixes the problem. This is a turbocharged 4.2 liter (I6) Trailblazer.. Can't wait to get some tuning options!

Travis

[GMPX]

Sounds just like what happens with the ETC LS1's. Should be fun getting these sorted.

Cheers,
Ross

[Black LS1 T/A]

When I had torque reduction enabled, on the track, each shift (an A4), I could see the nose dive down (like a granny-shift) and come back up. It was a tight race, and I barely beat the guy. With TM disabled, the car shifts without this dip, and I often can't tell exactly where it shifted without checking the logs... it's that quick/seamless.

Though I had a dip, would it REALLY make much difference in ET? I can't say. I just don't run enough to get that statistic nailed down pat. But, trust me, when your car is making excess of 500 RWHP and 700 RWTQ, you can tell the difference when timing is cut like that.

Keep in mind, I'm also the guy tht's putting his 4L60E back in this week (for the 5th tme in two years).

[Travis@FIR]

Sounds like it's time to switch to a 4L80E...