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Vehicle Speed Input - optional
The ECM has a special feature that "locks" the programing. Any attempt to change the programming will result in a system failure. The ECM is
programmed and looking for 40 pulses per revolution typical for automatic transmissions. The DR-525 Control System wire harness is designed to
plug into the output speed sensor of 4L60 & 4L80 Automatic Transmissions, which have a 40 pulse output.
NOTE:
•
If you are using the GMPP Supermatic Connect & Cruise Transmission Control System, the vehicle speed input must be plugged in.
Axle Ratio and Tire Size Requirements
The axle drive ratio in the calibration is set to 3.42:1 and is ok for ratio from 3.08 to 4.11. Tire diameter needs to be between 26" and 30". NOTE:
For optimal performance choose an axle ratio and a tire size with-in the recommended range.
NOTE:
•
Also see the CPP Catalog or chevrolet.com/performance for recommended starter, Front End Accessories and other components.
•
The parts listed here may have been updated or superseded, go to Chevrolet.com for the latest part number list.
Parts List:
These instructions cover the following package:
•
19354340 - DR-525 Controller Kit
•
19421202 - DR-525 Controller Kit for C10 fuel ONLY
•
19432870 - DR-525 Controller Kit for C10 fuel ONLY with knock detection disabled
Each Engine Control Package includes:
Part Number
19329244
19166573
19202598
15865791
19166574
19300176
19300177
10379038
12581966
15156588
22942442
19354341 or,
19421203 or,
19432871
Installation Instructions: ECM
The Engine Control Module (ECM) is environmentally sealed and can be mounted under hood, however, avoid extremely hot locations (exhaust,
etc.) or high splash areas. It is not recommended that the ECM be mounted directly to the engine.
Accelerator Pedal
Mount the accelerator pedal per the dimensional guidelines, as
shown. Mounting details are application specific and are left to
the user. Ensure that the pedal is securely mounted to the vehicle.
A grommet is required in any sheet metal hole that the harness
routes through to avoid wire damage.
Mass Air Flow (MAF) Sensor
NOTE: It is critical that the MAF sensor is mounted per the
instructions below. Vehicle performance and/or drivability may
be affected if it is not mounted as recommended.
The mass air flow sensor must be installed in the induction system using the supplied MAF sensor mounting boss. The induction system should be 4
inches in diameter and have a minimum straight section 6 inches in length. Mount the MAF sensor in the middle of the straight induction section,
ensuring that the middle of the mounting boss is at least 10 inches from the throttle body.
DR-525 Series Crate Engine Control System
ALL INFORMATION WITHIN ABOVE
Date
BORDER TO BE PRINTED EXACTLY
31MY16
AS SHOWN ON 8.5 x 11 WHITE 16
POUND NON-BOND RECYCLABLE
02FE21
PAPER. PRINT ON BOTH SIDES,
EXCLUDING TEMPLATES. TO BE
03MY23
UNITIZED IN ACCORDANCE WITH
GMCCA SPECIFICATIONS.
I-Sheet (Instruction Sheet)
Engine Harness
MAP Sensor Jumper
Mass Airflow Sensor
Mass Airflow Sensor Bracket
Bolt/Screw – Quantity 2
Washer – Quantity 2
Accelerator Pedal
Oxygen Sensor - Quantity 2
Oxygen Sensor mounting boss – Quantity 2
Emblem
Engine Control Module
Engine Control Module for C10 Fuel Only
Engine Control Module for C10 Fuel Only with knock detection disabled
Revision
Init Rel – Blake Nye
Revision - Blake Nye
Revision - Blake Nye
Vehicle Requirements
Item
BRAKE
PEDAL
ACCELERATOR
PEDAL
SIDE VIEW
PART No.
Rev 03MY23
19329244
Auth
DR
Title
NA
NA
DR-525 Series Crate Engine Control System
NA
PART No.
BRAKE
PEDAL
ACCELERATOR
PEDAL
FRONT VIEW
SHEET
Installation Instructions
19329244
TUNNEL
CONSOLE
2 of 33
SHEET 2 of 33
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