The 8HP control is not yet released, we are currently in BETA stage, but will be included in the next MTune 1.150 update in april 2024. Please be patient. Info pages are not yet completed and will be updated.
8HP related links
•8HP torque converter control.
The TCU firmware consist of the internal flash, which has the program "code" and the "maps" memory area and the EEPROM area.
A special tool needs to be used to reflash the whole memory area, normal flash tools only flashes the "maps" area, see 8HP reflash procedure.
Most important feature list
Setting |
OE Dodge |
MaxxECU custom Dodge |
Note |
Max engine RPM |
7650rpm |
9200rpm |
Make sure your gearbox is capable of revving this high... |
Controlable shift RPM |
- |
1500-9000rpm |
|
Max transbrake RPM |
2500rpm |
7000rpm |
|
Max transbrake torque |
800Nm |
1547Nm |
Make sure your converter wont burn up... |
Transbrake enabled gears |
D1 |
D1/2, M1/2 |
|
Transbreake Timeout |
|
15 seconds |
Make sure your converter wont burn up... |
Drive mode maps |
uses ALOT |
uses 4 shift maps |
STREET (D) = 5, SPORT (D) = 7, TRACK/DRAG (D) / WOT = 9. M/paddles = 31 |
Manual shiftpoints |
|
9000rpm or revlimiter value. |
In manual mode, it will autoupshift when reaching either 9000rpm or closing in on the revlimiter value. |
The 8HP control is not yet released, we are currently in BETA stage, no files here to download yet for public use.
8HP70 latest files
MaxxECU_Dodge_8HP70_custom_internal_flash_002.zip
MaxxECU_Dodge_8HP70_custom_maps_002.zip
MaxxECU_Dodge_8HP70_custom_EEPROM_002.zip
Note: do NOT try to use any of these code/calibrations together with OE Dodge or any other ECU/PCM; it will not work and might trash your gearbox. ONLY for MaxxECU EMS.
Changelog of program code memory area
(Sorry, we will not disclosure exactly what we have done here....)
Version 002
Transbrake changes.
Version 001
Transbrake changes.
Changelog of maps memory area
Version 002
•Changed all line pressure maps for smoother shift operations at low torque levels.
Version 001
[TRANS DIAG]
•Removed DTC: U11E3
•Removed DTC: P1DCA
•Removed DTC: P1B13
•Removed DTC: U1267
•Removed DTC: U0103
•Removed DTC: U0001
•Removed DTC: U11E4
•Removed DTC: P1DF3 (internal ECU init error).
[GENERAL]
•TCM RPM Limit changed to 9200rpm.
•Counter timeout for CAN init increased.
•Lower voltage threshold lowered.
•Kickdown pedal activation value changed.
[SHIFT SCHEDULING]
•Trans shift pattern 9 (Drive mode) change to 6000,6800,7000,7200,7200,7200,7200 engine rpm limit.
•Shift pattern mapping changed: STREET (D) = 5, SPORT (D) = 7, TRACK/DRAG (D) / WOT = 9. M/paddles = 31
•OSS Limits, Max engine speed, rescale of axis and change of table values for all upshift values.
[SHIFT PRESSURES - GENERAL]
•Base line pressure, desired line pressure, max mode offset changed from 0 to 2.
•Trans desired line pressure all gear raised at higher torque values.
[SHIFT PRESSURES - UPSHIFT]
•Minimum line pressure changed for all gears from 9bar to 11bar
•Nominal slip times adjusted.
•Fill time adjusted.
•Ramp time adjusted.
[SHIFT PRESSURES - DOWNSHIFT]
•Minimum line pressure changed for all gears from 9bar to 11bar
•Nominal Slip time adjusted.
[TORQUE MANAGEMENT - GENERAL]
•TCC limit disabled.
•Max torque limit, slip torque changed from 460Nm to 1547Nm.
•Max torque limit, error torque changed from 200Nm to 1547Nm.
•Max torque limit, max input shaft torque changed from 715Nm to 1547Nm
•Max torque limit, engagement clutch changed from 1000Nm to 1547Nm
•Max torque limit shift, overall max input torque changed in table to 1547Nm.
•Max torque limit, gear based normal, changed from 760Nm to 1547Nm on all forward gears.
•Max torque limit, temperature based gear 1 to 8, normal temp raised from 750Nm to 1547Nm.
•Max torque limit, converter temp based, gear 1 to 8 normal temp changed from 700Nm to 1547Nm.
•Max torque limit, clutch based temp limit, 0 to 200 deg C changed from 750 t0 1547Nm.
[TORQUE MANAGEMENT - UPSHIFT]
•Torque limit for all gears raised from 1000Nm to 1547Nm
•Max torque limit upshift table, values raised.
•Added torque intervention values for higher turbine speeds SPORT mode 1-2
•Added torque intervention values for higher turbine speeds SPORT mode 2-3
•Added torque intervention values for higher turbine speeds SPORT mode 3-4
•Added torque intervention values for higher turbine speeds SPORT mode 4-5
•Added torque intervention values for higher turbine speeds MAX mode 1-2
•Added torque intervention values for higher turbine speeds MAX mode 2-3
•Added torque intervention values for higher turbine speeds MAX mode 3-4
•Added torque intervention values for higher turbine speeds MAX mode 4-5
•Added torque intervention values for higher turbine speeds MAX mode 5-6
•Added torque intervention values for higher turbine speeds MAX mode 6-7
•Added torque intervention values for higher turbine speeds MAX mode 7-8
[TORQUE MANAGEMENT - DOWNSHIFT]
•Max torque limit stacked downshift table data changed from 1300Nm to 1547Nm, and added a few more cells with data.
•Removed a few -200Nm points.
[TRANSBRAKE]
•Max activation RPM changed to 7000rpm.
•Max output speed for protection changes from 8120 to 9800rpm.
•Max torque changed from 1000Nm to 1520Nm.
•MIN transmission oil temp changed from 50 to 25 deg C.
•Timeout increased to 15 seconds.
Version 000
Dodge DEMON internal flash + EEPROM.
