383 Stroker FIRSTŪ TPI / DIY PROM / S_AUJP v6.0
10-18-2022, 08:03 AM
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Car: '91 Firebird Formula
Engine: SP383 Deluxe FIRSTŪ TPI Intake
Transmission: Tremec T56
Axle/Gears: Moser 9" Eaton Truetrac Motive 3.89
383 Stroker FIRSTŪ TPI / DIY PROM / S_AUJP v6.0
I have attached the final .bin for my set up (link below). That's for anyone interested in DIY PROM tuning. I started with an OEM $8D ATNX .bin which was modified for the 383 stroker set-up (link below). Later, I copied all the data from the modified ATNX into S_AUJP v6.0 and continued my tuning. The ECM '7730 wiring was adapted to control FAN#2 and accept AFR gauge signal (see wiring diagram attached).
383 stroker with FIRST TPI Intake
5 speed (won't work with automatic unless you program it)
3.89 gear, 24.8" real tire diameter (25.7" advertised)
https://www.thirdgen.org/forums/diy-prom/783012-383-stroker-first-tpi.html#post6482730
Some of the important features specific to my application:
VE was tuned using INT only at air temperature of 70 Deg F, 50% humidity, 101kpa, with engine CT average of 189 Deg.F and average voltage at 13.2.
Injector rate was set at 26 lbs/hr (instead of 32lbs/hr) to give ample room in the VE tables. The set-up achieves over 100% VE at certain RPM. The VE tables can not be set over 100%. By lowering the injector rate, VE has to be lowered also to achieve same INJ PW (all else being equal).
BLM deactivated (locked at 128)
SAM deactivated
Closed loop enabled
Heated 02 sensor
No knock control
No EGR
No AIR
No AC
VATS enabled
CCP enabled
Launch Control enabled
HWY mode disabled
FAN 1 & 2 ecm controlled / 180Deg.F thermostat / Fan 1 on at 187Deg.F - Fan 2 on at 190Deg.F
Warm Idle set at 850 rpm with max increase of 100rpm for low voltage compensation (<13.0V)
SA - Spark Latency Correction tuned for JEGS #555-40006 HEI distributor
Cold SA disabled
30° maximum SA at WOT
12° initial SA
Maximum SA reached at 3200RPM
Not tuned for below 32 Deg.F temperature
MAT (IAT) sensor relocated to air box
WOT VE and WOT SA tuned using chassis dyno session and AFR gauge
VSS - Pulse/Min was tuned to match new transmission and rear-end ratios based on Autometer gauge calculation (3948 pulse/min)
Shift Light set at 5900 RPM, will turn on SES light (S_AUJP v6.0 feature - Thanks to @84Elky
If you decide to use, please study it carefully using Tuner Pro. USE AT YOUR OWN RISK. It was tuned for my specific set-up. Any differences with your set-up, specifically but not limited to: fuel pressure, injector flow rate and fuel octane; could cause engine damage. Don't hesitate to ask any questions.
383 stroker with FIRST TPI Intake
5 speed (won't work with automatic unless you program it)
3.89 gear, 24.8" real tire diameter (25.7" advertised)
https://www.thirdgen.org/forums/diy-prom/783012-383-stroker-first-tpi.html#post6482730
Some of the important features specific to my application:
VE was tuned using INT only at air temperature of 70 Deg F, 50% humidity, 101kpa, with engine CT average of 189 Deg.F and average voltage at 13.2.
Injector rate was set at 26 lbs/hr (instead of 32lbs/hr) to give ample room in the VE tables. The set-up achieves over 100% VE at certain RPM. The VE tables can not be set over 100%. By lowering the injector rate, VE has to be lowered also to achieve same INJ PW (all else being equal).
BLM deactivated (locked at 128)
SAM deactivated
Closed loop enabled
Heated 02 sensor
No knock control
No EGR
No AIR
No AC
VATS enabled
CCP enabled
Launch Control enabled
HWY mode disabled
FAN 1 & 2 ecm controlled / 180Deg.F thermostat / Fan 1 on at 187Deg.F - Fan 2 on at 190Deg.F
Warm Idle set at 850 rpm with max increase of 100rpm for low voltage compensation (<13.0V)
SA - Spark Latency Correction tuned for JEGS #555-40006 HEI distributor
Cold SA disabled
30° maximum SA at WOT
12° initial SA
Maximum SA reached at 3200RPM
Not tuned for below 32 Deg.F temperature
MAT (IAT) sensor relocated to air box
WOT VE and WOT SA tuned using chassis dyno session and AFR gauge
VSS - Pulse/Min was tuned to match new transmission and rear-end ratios based on Autometer gauge calculation (3948 pulse/min)
Shift Light set at 5900 RPM, will turn on SES light (S_AUJP v6.0 feature - Thanks to @84Elky
If you decide to use, please study it carefully using Tuner Pro. USE AT YOUR OWN RISK. It was tuned for my specific set-up. Any differences with your set-up, specifically but not limited to: fuel pressure, injector flow rate and fuel octane; could cause engine damage. Don't hesitate to ask any questions.
Last edited by SbFormula; 09-23-2023 at 06:07 AM.
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