M6 (Tremec T56) Gear PID?

[bK]

Andrew, too bad, there's no direct way to get your current gear ratio;

another way is to get VSS and convert it to revolutions/minute (taking axle ratio and tire circumference into account),
and then divide this into engine RPM and you have your gear ratio (easier said than done).

I was thinking along the same line but in the sense to pick clutch slippage. This could work in both applications?

[joecar]

In this example (wife's GAGT): axle ratio is 3.29, tyre diameter is 24.86" or 631.4mm.
Delete whichever of the two equations that you're not using.

# ==============================================================================
# File details
# ------------
#
# This section defines various details about the file format.

*FILE

#Parameter  Value            Description
#---------- ---------------- ---------------------------------------------------
VERSION     7.1.1            File version
DECSEP      .                Decimal separator used in this file



# ==============================================================================
# Units
# -------------------
# See sae_generic.txt for more information on the *UNITS section

*UNITS

#Code     System     Abbr     Description
#-------- ---------- -------- -------------------------------------------------------------

None      None       ""       "No units"


# ==============================================================================
# Add slot definitions here
# --------------------------------
# See sae_generic.txt for more information on "SLOT" formats
#
#Units             Low          High      Fmt  Expression
#------------ ------------- ------------- ---- --------------------------------------------------------------
*CLC-00-062
None               -4.0          4.0       .3  "{SAE.RPM} / {SAE.VSS.mph} / 336.135 / 3.29 * 24.86"
None               -4.0          4.0       .3  "{SAE.RPM} / {SAE.VSS.kph} / 5305.16 / 3.29 * 631.4"


# ==============================================================================
*PRN - Parameter Reference Numbers
# --------------------------------
# See sae_generic.txt for more information on the *PRN section
#
#Code                      PRN  SLOT         Units            System           Description
#------------------------- ---- ------------ ---------------- ---------------- ------------------------------------------
CALC.RATIO                 F062 CLC-00-062   "None"           Calculated       "Calculated Box Ratio"