I made some technical modifications on the car. Turbo k26/I exchanged it for 28, 727ccm Siemens injector got involved into it, we prepared new harness, and 6 coil on plug got the car.
BMW 6cyl firmware upgrade from 1.0.46. to 1.1.18
note: It might be a good idea to avoid accented characters in page titles
- 6 cylinder
- firing sequence, 1-5-3-6-2-4
- primary trigger: 60-2, VR
- secondary trigger: not used
- ignition: 3 power-output channels, wasted spark
Ignition output channels. PLEASE SORT TO FIRING SEQUENCE, and WRITE CYLINDER NUMBER TO EACH!
- EC36 Pin10 ignch7
- EC36 Pin34 ignch2
- EC36 Pin36 ignch3
Please verify that the chosen channels are power-outputs. Measure (with ignition ON, but engine NOT running) that voltage between +12V and the ign outputs is 0 (a logiclevel output pulls down to 0V when inactive, so that would measure 12V !)
1.0.46 firmware works great with
- ignchmax=02
- h[2]=07 03 02 07 03 02 .. ..
1.1.18 firmware plan:
- ignchmax=05
- h[2]=70 30 20 70 30 20 .. ..
- h[1]=28 14 00 28 14 00 .. ..
- important: you might need to rotate either h[1] or h[2] to get the spark to the right cylinder(-pair). Document the wiring above (write cylinder-numbers) so we can give better hints
Engine does not start, shows wheel-error.
Trigger hints:
- normal tooth width: 24 (=0x18, since 6 degrees)
- missing tooth width: 72 (=0x48, since 18 degrees)
- engine phase when to reset: 160 (reset_engphase_after=A0), though this should not cause no-start
Analog input
- MCP3208 ch6 connected to EC18pin ..
- ALS or launch works well with this (if channel 6 is selected)
- TODO: verify that it measures +5V when not pulled down externally
- measures ... V when pulled down externally with 1kOhm (you can use other resistor from 100 Ohm .. 10k, just document)
- MCP3208 ch7 connected to EC18pin ..
- TODO: verify that it measures +5V when not pulled down externally
- measures ... V when pulled down externally with 1kOhm (you can use other resistor from 100 Ohm .. 10k, just document)
- neither ALS nor launch works if channel 7 is selected. What can be the problem ?
- maybe input was killed ? The mcp3208 inputs are very sensitive, connecting to +12V or electrostatic discharge can damageit.
You can upload the dump and logs via FileArea
NOS thoughts
- NOS output control
- and RPM and MAP (TPS?) ranges
BMW M20 B25 (6cyl, appr 2.5L) modified bore ( 81 mm ) now competing in 200m and 400m dragrace (earlier it was a rally car with restriction before a smaller turbo)
- high-grade forged pistons
- fire-ring-headgasketseal
- injectors 650 ccm
- factory IX drivetrain
- final drive 3.91
- whwel diameter 650 mm
- Turbo: schwitzer S2B
- external wastegate ( 35mm )
Would NOS be useful to kick in for a short time after launch ?
During launch, engine RPM drops so low that turbo doesn't work well for a short time.
When the turbo spools up and boosts, NOS could be switched off.
Would this be useful ?
Not sure why he does not use higher launch RPM (maybe he fears the clutch would explode?)
´
Be careful with nitrous oxide if the engine bogs down on launch, even a small nitrous shot will give a very large boost in torque at a low rpm. The cylinder pressures could get very high and detonation can easlily occur. -Jörgen
Choose output for N2O - see GenBoard/Manual/DigitalOut/Table
The guy who installed did not document the wiring.
We reverse engineer from the mcd/mct dump.
This is a 6 cyl engine. The 0F in h[0] looks like it came from a 4 cyl engine. (Roland has a strong 1.8L 4 cyl BMW turbo)
h[0]=0F 00 00 00 20 80 10 00
- injectors A-B-C-D are apparently fired in batch (all 4 at once)
- how are injectors connected ? Why are 4 injoutputs fired at the same time ? Why not 3 or 6 ?
- act_rpm_channel=50 mask 0x80 (128) = EC36 pin 17 Inj H
- als_tks_channel=60 mask 0x10 (16) = EC36 pin 9 Inj E
N2O enable
- mask 0x20 (32) EC36 pin 18 Inj F
- choose miscoutput channel=INJ/4 (as 20 is already in the h[2] at place 4 - remember it's numbered 0..7)
unused:
- mask 0x40 (64) EC36 pin 6 Inj G
The megatune is frozen off the engine turn rises, and the load. The car under the pressure building continuous jerks, palpable does not switch on all cylinders. The ignition 30 ah security thaws, I increase the turn. Conceivable that the coil there is trouble? With thanks: Ákos
http://www.vems.hu/files/MembersPage/poweredracing/megasquirt200804191333%206%20trafó%201.msq
http://www.vems.hu/files/MembersPage/poweredracing/datalog200804191325.xls
Terminal log file
Date: 2008.04.19. - 11:15:31
Hello>
primep=00
primep_temp_scaling=A0
cwl=1E
cwh=0A
cranking_thres=03
awev=25
awev_temp_scaling=54
awec=75
warmup_clt_range[0]=00
warmup_clt_range[1]=04
warmup_clt_range[2]=18
warmup_clt_range[3]=2C
warmup_clt_range[4]=50
warmup_clt_range[5]=64
warmup_clt_range[6]=78
warmup_clt_range[7]=8C
warmup_clt_range[8]=AA
warmup_clt_range[9]=C8
warmup_clt[0]=B4
warmup_clt[1]=AA
warmup_clt[2]=A0
warmup_clt[3]=96
warmup_clt[4]=8C
warmup_clt[5]=82
warmup_clt[6]=7D
warmup_clt[7]=6E
warmup_clt[8]=68
warmup_clt[9]=64
warmup_rpm_scale=33
req_fuel=3C
divider=01
alternate=15
injopen=00
battfac=22
kpafac=CA
kpaoffs=90
injocfuel=28
injrampup_battfac=3F
injpwm=FF
injpwmt=FF
als_launch_input=76
rpmk[0]=07
rpmk[1]=D0
tpsdot_kpadot_conf=00
tpsdotrate[0]=05
tpsdotrate[1]=1A
tpsdotrate[2]=2C
tpsdotrate[3]=4E
tpsaq[0]=02
tpsaq[1]=0A
tpsaq[2]=0F
tpsaq[3]=14
als_cut_mintps=40
tpsasync=02
acmult=82
tpsacold=0A
launch_enrich=33
launch_retard=78
overrun_fuelcut=0D
overrun_fuelresume=0A
rev_limit=46
airden_ignore=62
config11=51
config12=30
config13=02
batt_cal=C0
fastidle=80
als_max_cut=0B
dbaro=0C
tps_low=05
tps_high=B7
fan_temp=EA
fan_hyst=04
fan_channel=6F
iac_step_seq=D8
iac_conf=40
iac_max_steps=C8
iac_tps_thres=0D
iac_cold_idle_temp=90
iac_warm_idle_temp=A2
iac_cold_rpm=82
iac_warm_rpm=55
iac_cold_start_pos=B3
iac_warm_start_pos=73
iac_afterstart_rpm=0A
iac_afterstart_duration=0A
iac_speed=06
iac_kp=30
iac_ki=0F
iac_kd=23
launch_rpm=23
iac_integral_limit_dec=5A
iac_integral_limit_inc=F0
iac_integral_deadband=0A
iac_deadband=05
als_cut_maxtps=66
iac_overclose_interval=B8
iac_ref_pos[0]=85
iac_ref_pos[1]=82
iac_ref_pos[2]=80
iac_ref_pos[3]=7D
iac_ref_pos[4]=7A
iac_ref_pos[5]=7A
iac_ref_pos[6]=78
iac_ref_pos[7]=75
iac_ref_pos[8]=73
iac_ref_pos[9]=70
iac_sol_channel=7F
iac_ign_slope=28
softrpm_range=7D
iac_ign_advance_limit=10
iac_ign_retard_limit=24
iac_ign_threshold=08
ego_conf=06
ego_lag=0C
ego_coolant=48
ego_maxtps=FF
ego_maxmap=FF
ego_minrpm=05
ego_maxrpm=FF
ego_warmup=0F
ego_lean_limit=00
ego_rich_limit=00
ego_pid_kp=40
als_enrich=05
ego_delta=1A
ego_target=19
ego_pid_window=FF
wbo2_warmup_ramp=9C
als_react_tps=E6
wbo2_abs_limit=E4
wbo2_limit_maxt=A0
wbo2_fallback=60
wbo2_retry_t=06
als_retard_rpm1=14
als_retard_rpm2=1C
wbo2_ri_target=96
wbo2_nernstdc_target=8D
wbo2_pump_pw_zero=67
wbo2_calibration=CA
wbo2_heater_pid_kp=45
wbo2_heater_pid_ki=11
wbo2_heater_pid_kd=1A
wbo2_heater_pid_ilimit=81
wbo2_pump_pid_kp=28
wbo2_pump_pid_ki=60
wbo2_pump_pid_kd=00
wbo2_pump_pid_ilimit=28
wbo2_ri_confidence_scale=80
knock_conf=00
knock_sampling_window=FF
knock1_frequency=29
knock1_gain=3F
knock1_integrator=1F
knock2_frequency=29
knock2_gain=3F
knock2_integrator=1F
knock_threshold=FF
knock_noise_scale=FF
knock_max_retard=00
knock_default_retard=00
knock_retard_step=FF
knock_retard_delay=FF
knock_advance_step=FF
knock_advance_delay=FF
knock_minrpm=0A
knock_maxrpm=FF
ve_learn_coolant=90
ve_learn_max_power=FF
ve_learn_rpm_scale=FF
ve_learn_kpa_scale=FF
ve_learn_ego_scale=FF
ve_learn_min_weight=01
ve_learn_speed=FF
ve_learn_limit=21
ve_learn_conf=00
lcd_c0=FE
lcd_delay=FF
lcd_backlight=00
kpa_conf=22
als_igncut_rpm2=19
als_retard_mintps=4D
als_retard_maxtps=80
lcd_default_view=00
primary_trigger=00
secondary_trigger=02
tooth_wheel=3A
trigger_tooth=00
another_trigger_tooth=14
crank_minper=50
tooth_wheel_twidth1=18
tooth_wheel_twidth2=48
cam_sync_r_edge_phase=3C
cam_sync_f_edge_phase=50
reset_engphase_after=A0
ign_tdcdelay=B4
ign_dwell14=1F
ign_dwell6=38
ign_crank_advance=14
ign_out=72
ignchmax=05
engine_off_delay=06
pump_on_mintime=08
fuelpump_channel=5F
inj_stage2_rate=FF
inj_stage2_start_tps=FF
inj_stage2_start_map=FF
als_igncut_rpm1=0F
als_deact_time=0A
als_deact_egt=7D
als_retard=3C
als_rev_limit=48
misc1out_minrpm=FF
misc1out_maxrpm=FF
misc1out_mintps=FF
misc1out_maxtps=FF
misc1out_minmap=FF
misc1out_maxmap=FF
misc1out_channel=FF
misc2out_minrpm=20
misc2out_maxrpm=43
misc2out_mintps=F0
misc2out_maxtps=FF
misc2out_minmap=35
misc2out_maxmap=82
misc2out_channel=60
act_wot_rpm=FF
act_wot_channel=3F
act_rpm_rpm=28
act_rpm_channel=32
egt1_cal=46
als_tks_channel=47
boost_conf=6D
boost_targetoffs=00
boost_minpressure=35
boost_pid_kp=00
boost_pid_ki=00
boost_pid_kd=00
boost_pid_ilimit=00
boost_channel=7F
water_pump_temp=00
hybrid_rpm_a=00
hybrid_rpm_m=00
water_pump_hyst=00
water_pump_channel=FF
toothrel_normal=79
toothrel_missing=00
fuelcut_min_kpa=09
fuelcut_max_kpa=87
tach_channel=07
tach_div=10
shiftcut_conf=80
shiftcut_channel=FF
shiftcut_time=00
softrpm_rpm=64
j[0]=1680 1980 1780 1980 1C80 1E80 2380 2780 2980 2C80 2E80 3380
j[1]=1980 1C80 2080 1F80 2580 2880 2A80 2E80 3080 3680 3980 3D80
j[2]=2180 2680 2880 2B80 2D80 3080 3380 3580 3780 3B80 3E80 4480
j[3]=2A80 3780 3680 3080 3180 3480 3780 3780 3C80 3F80 4080 4880
j[4]=3180 3580 3880 3480 3380 3580 3480 3580 3B80 3F80 4480 4B80
j[5]=2A80 3880 3780 3480 3780 3980 3A80 3B80 4280 4680 4880 4B80
j[6]=2E80 3380 3680 3A80 3C80 3F80 4380 4480 4680 4980 4980 4A80
j[7]=3580 3980 3B80 3980 3A80 4380 4780 4880 4880 4A80 4A80 4980
j[8]=3880 3A80 3D80 3D80 4180 4880 4980 4B80 4B80 4C80 4D80 4980
j[9]=3A80 3A80 3D80 3F80 4480 4980 4D80 4E80 4C80 4D80 4C80 4980
j[A]=3C80 3E80 4080 4580 4580 4680 4980 4D80 4B80 4B80 4980 4580
j[B]=4080 4480 4680 4880 4880 4880 4980 4B80 4B80 4880 4680 4580
l[0]=47 47 47 47 47 47 47 47 47 47 47 47
l[1]=55 55 55 55 53 55 55 53 53 55 55 51
l[2]=5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C
l[3]=5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C
l[4]=63 63 63 63 63 63 63 63 63 63 63 63
l[5]=63 63 63 63 63 63 63 63 63 63 63 63
l[6]=66 66 66 66 66 66 66 66 66 66 66 6B
l[7]=6B 6B 6B 6B 6D 6D 6D 6D 6D 6D 6D 70
l[8]=70 70 70 70 70 70 70 70 70 70 70 73
l[9]=75 75 75 75 75 75 75 75 75 75 75 75
l[A]=7E 7E 7E 7E 7E 7E 7E 7E 7E 7E 7E 7E
l[B]=7E 7E 7E 7E 7E 7E 7E 7E 7E 7E 7E 7E
n[0]=20 28 3C 50 64 78 8C 98 9C 9C 9C 9C
n[1]=20 28 3C 50 64 78 8C 98 9C 9C 9C 9C
n[2]=20 28 3C 50 64 78 8C 98 9C 9C 9C 9C
n[3]=20 28 3C 44 58 78 8C 98 98 9C 9C 9C
n[4]=20 28 3C 44 58 78 8C 8C 8C 8C 8C 8C
n[5]=20 28 3C 40 50 64 78 80 80 80 80 80
n[6]=20 28 3C 40 50 64 6C 70 70 70 70 70
n[7]=20 28 3C 40 50 58 5C 60 60 60 60 60
n[8]=20 28 3C 40 50 54 58 5C 5C 5C 5C 5C
n[9]=20 28 3C 40 50 54 54 54 54 54 54 54
n[A]=20 28 34 3C 40 48 48 48 48 48 48 3C
n[B]=20 28 28 28 28 28 28 28 28 28 28 25
k[0]=14 23 2D 3A 44 50 5F 69 71 78 87 94
r[0]=05 0A 0F 14 1E 28 32 37 3D 40 43 48
h[0]=20 10 08 04 02 01 40 00
h[1]=28 14 00 28 14 00 00 00
h[2]=70 50 10 70 50 10 00 00
y[0]=FF FF FF FF FF FF FF FF FF FF FF FF
y[1]=FF FF FF FF FF FF FF FF FF FF FF FF
y[2]=FF FF FF FF FF FF FF FF FF FF FF FF
y[3]=FF FF FF FF FF FF FF FF FF FF FF FF
y[4]=FF FF FF FF FF FF FF FF FF FF FF FF
y[5]=FF FF FF FF FF FF FF FF FF FF FF FF
y[6]=FF FF FF FF FF FF FF FF FF FF FF FF
y[7]=FF FF FF FF FF FF FF FF FF FF FF FF
y[8]=FF FF FF FF FF FF FF FF FF FF FF FF
y[9]=FF FF FF FF FF FF FF FF FF FF FF FF
y[A]=FF FF FF FF FF FF FF FF FF FF FF FF
y[B]=FF FF FF FF FF FF FF FF FF FF FF FF
Bye
Date: 2008.04.19. - 11:16:35
End log file