Quote:
Originally Posted by Moai
Niiiiiiice. A self-tuned, self-built vehicle. Always good to see and you've done a LOT of work.
CrazyBrew609 might be after you for HPTuners tips. He's in the process of fiddling with that software for the GM LSJ 2.0L supercharged Ecotec motor.
How involved did you become with tuning? Just fuel or did you play with the timing maps as well? How's the lambda look?
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hmmm... First off I didn't do ALL the work on the car, F&R did the welding and most of the re-wiring.
I do a couple more things than just fuel with my tunes, here is just what is different from stock on the Ford ( I actually could not paste the tables values, over 10000 chars in the Cobra tune alone!):
File1: C:\Program Files\SCT\SCTuning\Tunes\2007track_Ver01-2step.zcf
File2: C:\Program Files\SCT\SCTuning\BaseTunes\amz2_base.zcf
Name: maf_transfer_function
Name: canister_purge_switch
Name: canister_purge_switch
Name: canister_purge_monitor_switch
Name: air_cond_switch
Name: fuel_injector_low_slope
Name: fuel_injector_hi_slope
Name: fuel_injector_breakpoint
Name: injector_comp_batt_volt
Name: fuel_injector_minimum_pulse_width
Name: fuel_inj_high_slope_multiplier_fordeltaP
Name: fuel_inj_low_slope_multiplier_fordeltaP
Name: fuel_inj_breakpoint_multiplier_fordeltaP
Name: low_speed_fan_on_ect
Name: low_speed_fan_off_ect
Name: high_speed_fan_high_load_temp_to_turn_on
Name: high_speed_fan_on_ect
Name: high_speed_fan_off_ect
Name: borderline_knock_table
Name: spark_adder_for_A/F_when_open_loop
Name: fuel_open_loop_tp
Name: base_fuel_table
Name: min_load_to_allow_learning
Name: rev_limit_0_on
Name: rev_limit_neutral_0_on
Name: rev_limit_speed_to_exit_neutral_limiter
Name: speed_limit_output_shaft_on
Name: speed_limit_output_shaft_off
Name: dashpot_decay_rate
Name: dashpot_clip_1
Name: egr_type_switch
Name: traction_control_switch
Name: axle_ratio
Name: Tire_Revs_per_mile
Name: axle_ratio_switch
Name: trans_load_switch
Name: shift_light_turn_on_point
Name: Engine_displacement
Name: baro_pressure_max
Name: baro_pressure_min
Name: O2_transport_delay_in_seconds
and this is what i tweaked on my SS:
Main File : MY99Street-11.hpt
Compare File: MY99Stock.hpt
Main File Parameters : 465
Compare File Parameters: 465
Parameters Compared: 446
Differences : 58
Similarities: 388
Engine
General
EGR
EGR Enable Disabled : Enabled
AIR Pump
Air Pump Disable Coolant Temp 284 : 14 °F
Idle
Idle Airflow
Throttle Follower
Throttle Follower Airflow Decay vs. Speed (In Gear) 44 of 72 cells
Throttle Follower Delay Time vs. Speed (In Gear) 13 of 18 cells
Airflow
General Airflow
MAF Calibration
MAF Airflow vs. Output Frequency 78 of 85 cells
Main VE
Primary VE vs. RPM vs. MAP 250 of 380 cells
Secondary VE vs. RPM vs. MAP 117 of 180 cells
Dynamic Airflow
Steady State
Dynamic Airflow Steady State High - MAP Delta 4.00 : 2.79 kPa
Dynamic Airflow Steady State High - TPS Delta 1.99 : 1.00 %
VE Correction Factor
VE Correction Factor Filter Coefficient 0.0195 : 0.0898
VE Correction Factor Minimum 0.800 : 0.500
VE Correction Factor Maximum 1.100 : 1.500
Dynamic Airflow Zone Deep Decel - Reset Correction Factor Thresh 1.080 : 1.050
VE Correction Factor Initial vs. ECT Zone 3 of 15 cells
Fuel Control
Fuel Cutoff, DFCO
RPM Limits
P/N Fuel Cutoff RPM 6800 : 6200 rpm
P/N Fuel Resume RPM 6799 : 6100 rpm
Bad Vss Fuel Cutoff RPM 6800 : 6200 rpm
Bad Vss Fuel Resume RPM 6799 : 6199 rpm
Fuel Cutoff RPM vs. Gear 20 of 20 cells
ETC RPM Limit vs. Gear 1 of 1 cells
Fuel Cutoff Delay vs. Startup ECT 10 of 16 cells
Power Enrich
Power Enrichment
Hot Power Enrich Enable TPS Threshold vs. RPM 11 of 19 cells
Cold Power Enrich Enable TPS Threshold vs. RPM 11 of 19 cells
Power Enrich Hot Select Temp 210 : 284 °F
Power Enrich Fuel Multiplier vs. RPM 19 of 19 cells
COT, Lean Cruise
CAT Over Temp Protection
CAT Over-Temp Enable Disabled : Enabled
Spark Control
Spark Advance
Main Spark Advance
Main Spark vs. Airflow vs. RPM Open Throttle, High Octane 429 of 725 cells
Spark Correction
IAT Spark Advance Correction - Add 6 of 357 cells
ECT Spark Advance Correction - Add 75 of 1073 cells
Spark Retard
Knock Learn
Knock Learn Max RPM 6900 : 6400 rpm
Knock Learn Mult vs. ECT 8 of 19 cells
Knock Retard Decay
Knock Fast Recovery Rate vs. RPM 16 of 21 cells
Knock Retard Attack
Knock Fast Attack Gain vs. Coolant Temp 7 of 17 cells
Knock Fast Attack Rate vs. RPM 20 of 21 cells
Burst Knock Retard
Burst Knock Enable Delta Cyl Air Threshold vs. RPM 18 of 21 cells
Burst Knock Retard vs. RPM 16 of 21 cells
Maximum Knock Retard
Maximum Knock Retard vs. RPM (in Power Enrich) 20 of 21 cells
Knock Sensors
Knock Sensor Tip In
Knock Sensor Tip In Max TPS 98.01 : 100.00 %
Knock Sensor Level
Knock Sensor Level vs. Tip In TPS 21 of 21 cells
Knock Sensor Level vs. RPM vs. Cyl 168 of 168 cells
Knock Sensor Global Gain
Knock Sensor Global Gain vs. MAP vs. Cyl 136 of 136 cells
Torque Management
General
Maximum Torque
Maximum Net Engine Torque 450 : 350 ft.lb
Abuse
Drivetrain Abuse
Drivetrain Abuse - Enable RPM 7100 : 6600 rpm
Transmission
Manual C.A.G.S.
General
C.A.G.S. Disable TPS 0 : 38 %
C.A.G.S. Min Coolant Temp 284 : 171 °F
C.A.G.S. Disable Speed 0 : 21 mph
System
Fans
General
First Stage Fan Turn On Temp 180 : 226 °F
First Stage Fan Turn Off Temp 175 : 219 °F
Second Stage Fan Turn On Temp 190 : 234 °F
Second Stage Fan Turn Off Temp 185 : 227 °F
Ignition Off Fan Disable Temp 195 : 235 °F
Ignition Off Fan Run Time 240 : 150 sec
A/C
General
A/C Disable RPM 3950 : 4294 rpm
A/C Re-Enable RPM 3650 : 3950 rpm
A/C Disable TPS 64 : 100 %
Speedometer
Speedometer
General
VSS Pulses Per Mile 54914 : 47018
Final Drive Ratio 4.10 : 3.42
Trans Output Revolution per Mile 940.4296 : 805.1953
I have also tuned a Duramax Diesel and helped a few guys with their Terminators and LS1's. Do I do it for a living, no I have a good job already and have no desire to interfere with Pro tuners but if you are willing to deal with the severe learning curve, you can be much more sophisticated with your level of tuning on your own race car than a shop that has to stay on the safe side and spend only enough time to get the job done and make money at the same time. O2 transport delays, speed denisty tuning, re-calibration of MAF's, schemes to fool the PCM into handling garden hose injectors are all stuff you don't want to start off doing, but I have been doing my homework and developing ragged edge tunes for a couple years now, no I do a few more thing than fuel maps.