Stock LT1 Baseline
Before making any changes to our shop car, we first establish a solid baseline.
ENGINE: All Original 5.7L LT1
TRANSMISSION: T56
ECU: 1997 GM LT1
ECU CALIBRATION: Stock
RWHP: 264 hp
RWTQ: 284 lb-ft
EFI 24x™ GM Gen III LS1 PCM
Follow along with our most popular 24x LT1 conversion.
EFI 24x™ CONVERSION: EFI# 120-00116
ECU: GM# 12200411
THROTTLE TYPE: 48mm Cable
BASE CALIBRATION: 02 Camaro LS1/T56
RWHP: TBD
RWTQ: TBD
EFI 24x™ Holley HP
Holley EFI systems are popular among high-end enthusiasts with supporting budget.
EFI 24x™ CONVERSION: EFI# 120-00116
ECU: HP EFI
THROTTLE TYPE: 48mm Cable
RWHP: TBD
RWTQ: TBD
EFI 24x™ GM Gen III LS1 PCM
We ditch the cable and add a 52mm electronic drive-by-wire throttle body.
EFI 24x™ CONVERSION: EFI# 120-00116
ECU: GM# 12200411
TAC MODULE: 2002 Corvette
THROTTLE TYPE: 52mm Electronic DBW
BASE CALIBRATION: 02 Corvette LS1/T56
RWHP: TBD
RWTQ: TBD
EFI 24x™ GM Gen IV E40 ECM
Not a very popular ECM for conversions, but we give this first GM Gen IV ECM a try.
EFI 24x™ CONVERSION: EFI# 120-00116
ECU: GM E40 ECM
THROTTLE TYPE: 52mm Electronic DBW
BASE CALIBRATION: 05 Corvette LS2/T56
RWHP: TBD
RWTQ: TBD
EFI 24x™ Holley Dominator
Dominator EFI adds the ability to use an electronic DBW throttle body while retaining the same engine harness used with the HP EFI ECU.
EFI 24x™ CONVERSION: EFI# 120-00116
ECU: Dominator EFI
THROTTLE TYPE: 52mm Electronic DBW
RWHP: TBD
RWTQ: TBD
EFI 58x™ GM Gen IV E38 ECM
The engine is converted to GM 58x crank and 4x cam signals.
EFI 58x™ CONVERSION: EFI# 120-00127
ECU: GM E38
BASE CALIBRATION: 08 GM Truck 5.3L
THROTTLE TYPE: 52mm Electronic DBW
RWHP: TBD
RWTQ: TBD
EFI 58x™ GM Gen IV E67 ECM
We bring back cruise control to our Camaro.
EFI 58x™ CONVERSION: EFI# 120-00127
ECU: GM E67
BASE CALIBRATION: 08 Trailblazer SS
THROTTLE TYPE: 52mm Electronic DBW
RWHP: TBD
RWTQ: TBD
