Bumping this thread. I think in theory all I need to do is get it to pull more timing on decel, but I can't seem to get it to do that. The torque management system on Gen 5 vehicles makes it tricky. You can't simply edit the high octane table and put -30 degrees (or some really low value) in there because the torque management system will fight you and add timing back in. I actually made a video documenting the procedure for creating a burble tune on the Gen 5 platform. It works great and gives tons of pops and cracks, but no flames:
https://youtu.be/mVE5AgcmpP4
So far, I seem to be bottoming out at -13 degrees of timing on deceleration. I have my minimums set to -30 so that's not inhibiting anything. I tried a few things since I made this post:
- Lowering the 0% throttle row in driver demand quite a bit to command a lot less torque when not on the gas (didn't seem to do much of anything)
- Increasing the max torque delta and torque loss parameters in the spark smoothing algorithm (no noticeable difference)
- Disabling DFCO (this did nothing except make the pops go on forever...still bottomed out at -13 degrees)
- Lowered the 0.08 and 0.12 airmass rows of the high octane spark table (decel is at 0.12 airmass typically according to my logs. I thought that if torque management is pulling a fixed amount, lowering the starting point would yield a lower final spark....but unfortunately this is not the case)
- Lowered the Immediate and Predicted Decrease tables under the Driver Demand section (this just made the car reach the floor of -13 degrees faster, but it still didn't go below that)
Any help with this would be appreciated. I'm starting to wonder if there are additional tables in the Gen 5 ECU that aren't exposed to us that could be of use. I realize this is probably a low priority for HP Tuners, as the only point of pulling this much timing is for theatrical purposes, but I'd really appreciate any help figuring this out.
