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Classic Instruments

1955 1956 & 1957 Chevy Installation Manual

Table of Contents Table of Contents ________________________________________ 2 Welcome to the Team of Classic Instruments! _________________ 3 '55-'56 Chevy Part Identification____________________________ 4 Installing Your 1955/56 Classic Gauge Set ____________________ 5

Disassemble the Original Gauge Set ___________________________ 5 Assembling Your New Classic Gauge Set_______________________ 7 1955 / 1956 Chevy Wiring Diagrams _________________________ 10

Using Classic Instruments Pulse Signal Generator_____________________10 Using Transmission Vehicle Speed Sensor __________________________11 Using ECM Speed Signal ________________________________________12

Wiring your 1955 / 56 Chevy Classic Gauge Set _______________ 13

Speedometer, Tachometer, Volt and Oil Pressure Gauge_________ 13 Fuel and Temperature Gauge _______________________________ 16 Gear Selector Gauge_______________________________________ 17

Installing your 1957 Chevy Classic Gauge Set ________________ 18

Speedo, Tach, Volt and Oil Pressure Gauge Wiring Diagrams ____ 20

Using Classic Instruments Pulse Signal Generator_____________________20 Using Transmission Vehicle Speed Sensor __________________________21 Using ECM Speed Signal ________________________________________22

Wiring your 1957 Chevy Classic Gauge Set __________________ 23

Speedometer, Tachometer, Volt and Oil Pressure Gauge_________ 23 Temperature Gauge _______________________________________ 26 Fuel Level Gauge _________________________________________ 27 Clock ___________________________________________________ 28

Setting Up Your Speedometer and Tachometer________________ 29

Entering Setup Mode: _____________________________________ 29 Tachometer Setup: ________________________________________ 30

Cylinder Select: _______________________________________________30 Tachometer Signal Type: ________________________________________31

Speedometer Setup: _______________________________________ 32

Speed Auto Calibrate:___________________________________________32 Real-Time Speed Adjust: ________________________________________33

Welcome to the Team of Classic Instruments!

Our congratulations and appreciation for your purchase of the finest quality set of specialty instruments ever produced! Your instrument set has been conceived, designed, and manufactured by Classic Instruments, Inc. in the U.S.A. Each instrument has been tested and certified for accuracy and quality before packaging and shipping. For trouble-free installation and operation, follow the instructions exactly as outlined. Your instruments were assembled to precise specifications and although each has a five (5) year warranty covering defective parts and workmanship ­ this warranty will not cover instruments or sending units which have been installed incorrectly.

LIMITED WARRANTY

Classic Instruments, Inc. (CI) warrants to the original purchaser that any CI product manufactured or supplied by CI will be free from defects in material and workmanship under normal use and service for a period of five (5) years from date of purchase. Improper installation, use of sending units other than CI's or attempted repair or adjustments by other than CI shall void this warranty. Disassembly of any instruments or senders for whatever reason shall specifically void this warranty. Purchaser requesting a product to be repaired or replaced under warranty must first call CI at 1-800-575-0461 before the return of defective part. Send defective part either to 1299 M-75, through UPS, or to P.O. Box 411 through U.S. Mail, Boyne City, MI 49712, USA. Include a written description of the failure with defective part. Purchaser agrees and accepts that under no circumstances will a warranty replacement be furnished until CI has first received, inspected, and tested the returned part. All other warranties expressed or implied are hereby excluded including any implied warranty of merchandise and implied warranty of fitness for a particular purpose. The sole and exclusive remedy for breach of this warranty is limited to the replacement set forth above. It is expressly agreed that there shall be no further remedy for consequential or other type of damage, including any claim for loss of profit, engine damage or injury.

TECHNICAL ASSISTANCE 1-231-582-0461 OR Visit our new website for the latest in gauge design and updates to our installation manual at: www.classicinstruments.com

'55-'56 Chevy Part Identification

14

12

8

9

15

10

11

13

16

1 2 3 4 5 6 7 8

Gear Selector Movement (optional) Nylon Washer x6 Glass Bracket x2 Large Glass x1 Gear Selector Housing Gear Selector Glass (optional) x1 Gear Selector Bracket (OE Part) Speedo, Tach, Oil & Volts Housing

9 10 11 12 13 14 15 16

Temperature Movement Fuel Movement Gear Selector Installed (Optional) Speedo, Tach, Oil & Volts Harness Fuel & Temp Harness Glass Bracket Hold-down Screws x2 Bezel Mounting Screws x6 Gauge Light x1

Installing Your 1955/56 Classic Gauge Set

Disassemble the Original Gauge Set

Step 1: When using the original stock bezel, disassemble the dash by removing the bezel. (Figure 1)

Figure 1

Figure 2

Step 2: Place the original bezel face down on a flat surface. (Figure 2) Step 3: Remove the six (6) screws that hold the gauge cluster in the bezel. The screws are located around the perimeter of the bezel. (Figure 3)

Figure 3 Step 4: Remove gauge cluster from bezel.

Step 5: Remove inner insert and glass. (Figure 4)

Figure 4

For manual transmissions, skip steps 6 ­ 8 and go directly to assembly section.

Step 6: For automatic transmissions, remove gear selector bracket (2 screws) and disengage spring. (Figure 5)

Figure 5

Figure 6

Step 7: Remove gear selector glass. (Figure 5) Step 8: Remove stock gear selector pointer. (Figure 6)

Assembling Your New Classic Gauge Set

Note: Assembling using after-market bezel may require enlargements of mounting holes. For manual transmissions, skip steps 1 ­ 4 & 6 Step 1: Place the furnished gear selector glass (small) over the gear selector housing. Step 2: Before placing gear selector bracket over glass, file corners about 1/8 inch on the back side. (Figure 7) Step 3: Use a very small amount of trim tape (supplied) on the back of the gear selector bracket to adhere glass. Note: Make sure that the tape is not visible from the front.

Figure 7 Step 4: Place gear selector bracket over gear selector glass.

Step 5: Use a very small amount of trim tape (supplied) around bezel and rim, then place large glass into the housing in order to cushion glass and prevent glass rattle. (Figure 8)

Figure 8 Step 6: Place gear selector movement over stock bracket. (Figure 8) Step 7: Stack nylon washers over the mounting holes of the gear selector movement to make glass bracket level with glass. (Figure 9)

Figure 9 Step 8: Place glass brackets on each side of the bracket, making sure to push it into the corners completely. Screw down with (2) 8-32 x ½" screws and star washers. (Figure 9 & 10) Note: Brackets must be level with glass. Note: The hole in the brackets may need to be elongated in order to make it fit flush.

Mount Brackets With Sides Turned Up

FIGURE 10 Step 9: Place Classic Instruments cluster into bezel. Step 10: Use the six (6) furnished screws to screw the Classic Instruments cluster to the bezel. Note: The aluminum housing interferes with the top hole. Remove both nuts in housing, insert mounting screw, and replace the two aluminum housing nuts. Step 11: Plug supplied light into the bottom of the gauge cluster.

[BLACK] Good Chassis Ground

Using Classic Instruments Pulse Signal Generator

[PINK] +12VDC Switched

SN16

SN16FD

Red

OR

[RED] +12VDC output for speed generator

(used only with SN16 or SN16FD)

Black

[PURPLE] Speed Signal

Turn indicators: Red = Turn Signal Switch Black = Common Ground

White Good Chassis Ground

Right Turn Indicator Left Turn Indicator

[GREEN] +12VDC High Beam Signal

1955 / 1956 Chevy Wiring Diagrams

LED INDICATORS BLACK = GROUND RED = 12 VOLT

[WHITE] Tachometer Signal

Pushbutton

[BROWN] Function / Setup signal

Black Tip Red Tip White Tip

Good Chassis Ground

[BLUE] Oil Pressure Signal

[GREY] +12VDC Gauge Lights

Dk. Green

Orange

White

Black

Black

Black

[PINK - A] +12VDC switched [TAN - B] Fuel Level Signal [BLACK - C] Good Chassis Ground [DK. GREEN - D] Temperature Signal [WHITE / BLACK - E] Gear Selector Signal (if used) [ORANGE - F] +12VDC Gear Selector (if used)

Pink Tan Pink

+12VDC (Dash Lights)

[BLACK] Good Chassis Ground

[PINK] +12VDC Switched

Not Used

[RED] +12VDC output for speed generator

(used only with SN16 or SN16FD)

Using Transmission Vehicle Speed Sensor

[PURPLE] Speed Signal

Turn indicators: Red = Turn Signal Switch Black = Common Ground

Good Chassis Ground (Ground at same place as Black wire)

Right Turn Indicator Left Turn Indicator

[GREEN] +12VDC High Beam Signal

LED INDICATORS BLACK = GROUND RED = 12 VOLT

[WHITE] Tachometer Signal

Pushbutton

[BROWN] Function / Setup signal

Black Tip Red Tip White Tip

Good Chassis Ground

[BLUE] Oil Pressure Signal

[GREY] +12VDC Gauge Lights

Dk. Green

White

Orange

Black

Black

Black

[PINK - A] +12VDC switched [TAN - B] Fuel Level Signal [BLACK - C] Good Chassis Ground [DK. GREEN - D] Temperature Signal [WHITE / BLACK - E] Gear Selector Signal (if used) [ORANGE - F] +12VDC Gear Selector (if used)

Tan Pink Pink

+12VDC (Dash Lights)

[BLACK] Good Chassis Ground

[PINK] +12VDC Switched

ECM Computer

Not Used

[RED] +12VDC output for speed generator

(used only with SN16 or SN16FD)

[PURPLE] Speed Signal

Turn indicators: Red = Turn Signal Switch Black = Common Ground

Speed Signal (Usually a Green Wire)

Right Turn Indicator Left Turn Indicator

[GREEN] +12VDC High Beam Signal

LED INDICATORS BLACK = GROUND RED = 12 VOLT

[WHITE] Tachometer Signal

Pushbutton

[BROWN] Function / Setup signal

Using ECM Speed Signal

Black Tip Red Tip White Tip

Good Chassis Ground

[BLUE] Oil Pressure Signal

[GREY] +12VDC Gauge Lights

Dk. Green

Orange

White

Black

Black

Black

[PINK - A] +12VDC switched [TAN - B] Fuel Level Signal [BLACK - C] Good Chassis Ground [DK. GREEN - D] Temperature Signal [WHITE / BLACK - E] Gear Selector Signal (if used) [ORANGE - F] +12VDC Gear Selector (if used)

Tan Pink Pink

+12VDC (Dash Lights)

Wiring your 1955 / 56 Chevy Classic Gauge Set

Speedometer, Tachometer, Volt and Oil Pressure Gauge

Step 1: Connect the pink wire of the instrument harness to a +12VDC switched power source. Step 2: Connect the black wire of the instrument harness to a good chassis ground. Step 3: Connect the purple wire of the instrument harness to one of the following: · One of the wires from a mechanical 2-wire pulse signal generator. Connect the other wire to instrument ground from step 2. · The white wire from a mechanical 3-wire pulse signal generator. · One of the wires from a built in 2-wire electronic speed sensor on the transmission. Connect the other wire to instrument ground from step 2. · Speedometer signal wire from the computer. Step 4: Connect the red wire of the instrument harness to the red wire of a mechanical 3-wire pulse signal generator (only if 3-wire sender is being used). · Connect the black wire of a mechanical 3wire pulse signal generator to a good chassis ground (if 3-wire sender is being used). Step 5: Connect the white wire of the instrument harness to the tachometer signal. Step 6: Connect the blue wire of the instrument harness to the oil pressure sender.

See Table 1

See Figure 10

Step 7: Connect the grey wire of the instrument harness to a +12VDC dash light power source.

Step 8: Connect the green wire of the instrument harness to the +12VDC high beam indicator signal. Step 9: Connect the brown wire of the instrument harness to one lead of the function / setup pushbutton. · Connect the other lead of the function / setup pushbutton to a good chassis ground.

Standard Points & Condenser System GM ­ HEI (High Energy Ignition) System

Ignition System

MSD (Multiple Spark Discharge) System

Vertex Magneto System

Mallory Ignition System

ECM (computer) Tachometer Signal

All Other Ignition Systems

Negative side of coil (usually marked "-") Terminal marked "TACH" on coil side of distributor cap. TACH post on MSD box. If there isn't a box, signal comes from negative side of coil. If tachometer doesn't respond correctly, your MSD system may require a MSD TACH adapter part #8910 or #8920. Contact MSD for the correct adapter for your application. "KILL" terminal on side of Vertex magneto body. An external adapter such as a MSD Pro Mag Tach Converter #8132 may be required. Negative side of coil (usually marked "-") Important! Some Mallory ignition systems require the tachometer to be set at the 4cylinder setting. Signal comes from the computer. You may need to set the tachometer at the 4-cylinder setting. Please look at the owner's manual for the location of the tachometer signal.

Tachometer Signal Source

Table 1

Nut Lock Washer

Ring Terminal To Blue wire on harness

Washer Signal Wire

Oil Pressure Sender Part Number: SN52, SN53 or SN54

45° Elbow

DO NOT USE TEFLON TAPE ON ANY PART OF THE SENDER BECAUSE THIS INTERFERES WITH THE SENDER'S GROUND CONNECTION.

Entension

Engine Block

Figure 10

Fuel and Temperature Gauge

Step 1: Connect a +12VDC switched source to the pink wire (position A) of the fuel / temperature wiring harness. Step 2: Connect a good chassis ground to the black wire (position C) of the fuel / temperature wiring harness. Step 3: Connect the fuel sender to the tan wire (position B) of the fuel / temperature wiring harness. See figure 11 for wiring diagram. Note: Requires 0-30 ohm fuel sender. Step 4: Connect the temperature sender to the dark green wire (position D) of the fuel / temperature wiring harness. See figure 12 for wiring diagram.

Nut Lock Washer Brass Washer Nut (Do Not Remove) Nylon Washer

(Do Not Remove)

To Tan wire on Fuel / Temperature harness Signal Wire Fuel Level Sender

Figure 11

Nut Lock Washer Brass Washer Nylon Washer Intake Manifold To Dk. Green wire on Fuel / Temperature harness Signal Wire

Part Number:

Temperature Sender SN25, SN24,

SN23, or SN22

DO NOT USE TEFLON TAPE ON SENDER THREADS SINCE THIS INTERFERES WITH SENDERS GROUND CONNECTION.

Figure 12

Gear Selector Gauge

Step 1: Connect a +12VDC switched source to the orange wire (position F) of the fuel / temperature wiring harness. Step 2: Connect a wire from the "to gauge" position on the SN46 gear selector interface to the white wire (position E) of the fuel / temperature wiring harness. Step 3: Connect the wire loop on the end of the orange wire of the fuel / temperature wiring harness to the gear selector gauge post marked with orange or red paint. Step 4: Connect the wire loop on the end of the white wire of the fuel / temperature wiring harness to the gear selector gauge post marked with white paint. Step 5: Connect the wire loop on the end of the black wire of the fuel / temperature wiring harness to the gear selector gauge post marked with black paint.

See Figure 13 & supplemental instructions included with the SN46 gear selector sender for details on how to wire / calibrate the gear selector sender.

Black-Tip Post

Red-Tip Post

Ground [Black]

White-Tip Post

+12VDC (Switched) [Orange] Signal (to SN46) [White]

Figure 13

Installing your 1957 Chevy Classic Gauge Set

Step 1: Disassemble the dash, removing the original gauges and brackets. Save the original bezels. (Figure 1) Your new gauges utilize the original bezels for optimum fit.

Figure 1

Figure 2

Step 2: With the dash face down on a flat surface, place the original bezels in their proper locations. (Figure 2) Note: The large center bezel has a notch and the two small bezels each have two holes. The notch and the holes should be placed at the bottom of the mounting openings. Step 3: Place round center bracket around the 5" gauge and insert it in the dash panel. (Figure 3) Note: The top of the bracket is indicated by the narrower notch and should be aligned with the top of the gauge.

Figure 3

Figure 4

Step 4: Using the (4) 6-32 x 3/8" screws and lock washers, correctly align the gauge so the dial is straight, and firmly fasten the bracket to the dash.

Step 5: Place the small gauges on the original bezels. Install the 3-3/4" brackets across the studs and secure the brackets with (2) 8-32 x 1/2" screws and lock washers. (Figure 4) IMPORTANT: Terminal posts may need to be shortened to avoid contact with the cowling which may cause a short.

Speedo, Tach, Volt and Oil Pressure Gauge Wiring Diagrams

Using Classic Instruments Pulse Signal Generator

[BLACK] Good Chassis Ground

[PINK] +12VDC Switched

SN16

SN16FD

Red

[RED] +12VDC output for speed generator (used only with SN16 or SN16FD)

OR

Black

1

2

3

[PURPLE] Speed Signal

White

Good Chassis Ground

No Connection

[GREEN] +12VDC High Beam Signal

[WHITE] Tachometer Signal

5 4 7 8 6

[BROWN] Function / Setup signal

Pushbutton

Good Chassis Ground

[BLUE] Oil Pressure Signal

[GREY] +12VDC Gauge Lights

[BLACK] Good Chassis Ground

[PINK] +12VDC Switched

Transmission Electronic Vehicle Speed Sensor

Using Transmission Vehicle Speed Sensor

[RED] +12VDC output for speed generator (used only with SN16 or SN16FD)

Not Used

1

2

3

[PURPLE] Speed Signal

Good Chassis Ground

(Ground at same place as Black wire)

No Connection

[GREEN] +12VDC High Beam Signal

5 4 7 8 6

[BROWN] Function / Setup signal

[WHITE] Tachometer Signal

Pushbutton

Good Chassis Ground

[BLUE] Oil Pressure Signal

[GREY] +12VDC Gauge Lights

[BLACK] Good Chassis Ground

[PINK] +12VDC Switched

ECM Computer

[RED] +12VDC output for speed generator (used only with SN16 or SN16FD)

Not Used

1

2

3

[PURPLE] Speed Signal

Speed Signal

(Usually a Green Wire)

Using ECM Speed Signal

No Connection

[GREEN] +12VDC High Beam Signal

[WHITE] Tachometer Signal

5 4 7 8 6

Pushbutton

[BROWN] Function / Setup signal

Good Chassis Ground

[BLUE] Oil Pressure Signal

[GREY] +12VDC Gauge Lights

Wiring your 1957 Chevy Classic Gauge Set

Speedometer, Tachometer, Volt and Oil Pressure Gauge

Step 1: Connect the pink wire of the instrument harness to a +12VDC switched power source. Step 2: Connect the black wire of the instrument harness to a good chassis ground. Step 3: Connect the purple wire of the instrument harness to one of the following: · One of the wires from a mechanical 2-wire pulse signal generator. Connect the other wire to instrument ground from step 2. · The white wire from a mechanical 3-wire pulse signal generator. · One of the wires from the built in electronic speed sensor on the transmission. Connect the other wire to instrument ground from step 2. · Speedometer signal wire from the computer. Step 4: Connect the red wire of the instrument harness to the red wire of a mechanical 3-wire pulse signal generator (only if 3-wire sender is being used). · Connect the black wire of a mechanical 3wire pulse signal generator to a good chassis ground (if 3-wire sender is being used). Step 5: Connect the white wire of the instrument harness to the tachometer signal.

See Table 1

Step 6: Connect the blue wire of the instrument harness to the oil pressure sender.

See Figure 5

Step 7: Connect the grey wire of the instrument harness to a +12VDC dash light power source.

Step 8: Connect the green wire of the instrument harness to a +12VDC high beam indicator signal. Step 9: Connect the brown wire of the instrument harness to one lead of the function / setup pushbutton. · Connect the other lead of the function / setup pushbutton to a good chassis ground.

Standard Points & Condenser System GM ­ HEI (High Energy Ignition) System

Ignition System

MSD (Multiple Spark Discharge) System

Vertex Magneto System

Mallory Ignition System

ECM (computer) Tachometer Signal

All Other Ignition Systems

Negative side of coil (usually marked "-") Terminal marked "TACH" on coil side of distributor cap. TACH post on MSD box. If there isn't a box, signal comes from negative side of coil. If tachometer doesn't respond correctly, your MSD system may require a MSD TACH adapter part #8910 or #8920. Contact MSD for the correct adapter for your application. "KILL" terminal on side of Vertex magneto body. An external adapter such as a MSD Pro Mag Tach Converter #8132 may be required. Negative side of coil (usually marked "-") Important! Some Mallory ignition systems require the tachometer to be set at the 4cylinder setting. Signal comes from the computer. You may need to set the tachometer to the 4-cylinder setting. Please look at the owner's manual for the location of the tachometer signal.

Tachometer Signal Source

Table 1

Nut Lock Washer

Ring Terminal To Blue wire on harness

Washer Signal Wire

Oil Pressure Sender Part Number: SN52, SN53 or SN54

45° Elbow

DO NOT USE TEFLON TAPE ON ANY PART OF THE SENDER BECAUSE THIS INTERFERES WITH THE SENDER'S GROUND CONNECTION.

Entension

Engine Block

Figure 5

Temperature Gauge

Step 1: Connect a +12VDC switched power source to the terminal marked "I" on the back of the temperature gauge. Step 2: Connect a good chassis ground to the terminal marked "G" on the back of the temperature gauge. Step 3: Connect the temperature sending unit to the terminal marked "S" on the back of the temperature gauge. Step 4: Connect a +12VDC dash light power source to the spade terminal marked "L" on the back of the temperature gauge.

See Figure 6

Dash Lights (+12VDC)

Ground

L G +12VDC (Switched)

S

I

Nut Lock Washer Brass Washer Nylon Washer Intake Manifold Temperature Gauge

Signal Wire Temperature Sender SN25, SN24,

DO NOT USE TEFLON TAPE ON SENDER THREADS SINCE THIS INTERFERS WITH SENDER'S GROUND CONNECTION.

Part Number: SN23, or SN22

Figure 6

Fuel Level Gauge

Step 1: Connect a +12VDC switched power source to the terminal marked "I" on the back of the fuel level gauge. Step 2: Connect a good chassis ground to the terminal marked "G" on the back of the fuel level gauge. Step 3: Connect the fuel level sending unit to the terminal marked "S" on the back of the fuel level gauge. Step 4: Connect a +12VDC dash light power source to the spade terminal marked "L" on the back of the fuel level gauge.

See Figure 7

Dash Lights (+12VDC)

Ground

L G +12VDC (Switched)

S

I

Fuel Level Gauge Nut Lock Washer Brass Washer Nut (Do Not Remove) Nylon Washer

(Do Not Remove)

Signal Wire A supplemental ground may be necessary on fuel sender Fuel Level Sender

Figure 7

Clock

Step 1: Connect a constant +12VDC source to the "+B" terminal on the back of the clock housing. Step 2: Connect a good ground to the "-G" terminal on the back of the clock housing. Step 3: Connect both YELLOW wire leads protruding from the clock housing to the two wires of the clock reset button. Step 4: Use the clock reset button to set the correct time. Press and release the button once to advance the time by 1 minute. Press and hold the button to fast-forward the clock time. IMPORTANT NOTICE! DO NOT connect the clock reset button wires (YELLOW) to anything but the supplied button. Doing so may damage the quartz movement and NOT be covered under warranty.

Classic Instruments ##/##/##

-G

+B

Ground Pushbutton (used to set time)

+12VDC (Constant)

Setting Up Your Speedometer and Tachometer

Speedometer / Tachometer Setup Option Menu

Tach Pointer Location

1000 RPM 2000 RPM 3000 RPM 4000 RPM 8000 RPM

Setup Option

Tachometer Cylinder Setup Tachometer Signal Type Speed Auto Calibrate Real-Time Speed Adjust Exit

Description

Sets number of cylinders. Selects between 5V and 12V tachometer signal. Calibrates speed using an exact marked mile. Manually increase or decrease speed. Exit setup

Entering Setup Mode:

1) Start with the power off. While pressing the function button, start the vehicle's engine. Release the function button when the 60 80 40 MPH 100 engine is running and the 20 120 speedometer pointer is at 0 140 70MPH. 0 00 0 0 0 0 The tachometer will point to 1000 RPM and the speedometer will point at 70MPH once you have successfully entered the setup mode. Tapping the function button will cycle through the setup options. (tachometer position) Pressing and holding (approx. 4 seconds) the function button will select the current setup option that the tachometer is indicating. When setup is complete, select the exit option (8000 RPM) then press and hold the function button for another 4 seconds.

1 4 5 2 3 6 RPM

x1000

7

0

8

13

50

8

18

0

100

VOLTS

OIL

2)

3) 4) 5)

Tachometer Setup:

Cylinder Select: 1) 2)

8 CYL. Enter setup mode. 4 CYL. Tap the function button until the tachometer points 60 80 to 1000 RPM 40 MPH 100 VOLTS OIL (tachometer 20 120 cylinder setup 0 140 option). 000000 0 Press and hold the function button for 4 seconds to enter the tachometer cylinder setup mode. The speedometer will point to the current cylinder number setting (40 MPH for 4 cylinders, 60 MPH for 6 cylinders, etc...). Tap the function button until the correct setting is selected. Press and hold the function button for 4 seconds to save the setting. The speedometer pointer will again point up and the tachometer will point to 8000 RPM (exit). Tachometer cylinder selection is now set. If you are finished making setup changes, press and hold the function button for 4 seconds with the tachometer pointing to 8000 RPM to exit setup mode. 6 CYL.

1 4 5 2 3 6 RPM

x1000

7

0

8

13

50

8

18

0

100

3)

4) 5)

6)

Tachometer Signal Type: 1) 2) Enter setup mode. 12V 5V Tap the function button until the tachometer points 60 80 to 2000 RPM 40 MPH 100 VOLTS OIL (tachometer signal 20 120 type option). 0 140 Press and hold the 0 00 0 0 0 0 function button for 4 seconds to enter the tachometer signal type mode. The speedometer will point to the current setting (50 MPH for 5V signal or 120 MPH for 12V signal). Note: Use 5V

1 4 5 2 3 6 RPM

x1000

7

0

8

13

50

8

18

0

100

3)

4) 5)

6)

Tap the function button until the correct tachometer signal type setting is selected. Press and hold the function button for 4 seconds to save the setting. The speedometer pointer will again point up and the tachometer will point to 8000 RPM (exit). Tachometer signal type is now set. If you are finished making setup changes, press and hold the function button for 4 seconds with the tachometer pointing to 8000 RPM to exit setup mode.

setting if tachometer signal comes from a computer. For any other signal use 12V.

Speedometer Setup:

There are two ways to calibrate the speedometer. Speed auto calibrate (using an exact marked mile) and real-time speed adjust (manually adjust speed up or down). It is recommended you use the speed auto calibrate option first and then make any fine tune adjustments using the real-time speed adjust option.

Speed Auto Calibrate: 1) 2) Enter setup mode. Signal Detected No Signal Tap the function button until the tachometer points to 3000 RPM (speed 60 80 auto calibrate 40 MPH 100 VOLTS OIL option). 20 120 Press and hold the 0 140 function button for 4 000 000 0 seconds to enter the speed auto calibrate mode. The speedometer will point to 30 MPH (on a 140 MPH speedometer) indicating you are in speed auto calibrate mode. Begin driving the measured mile. The tachometer will operate as normal but the odometer will not move. When a speed signal is detected, the speedometer will point to 45 MPH. If a speed signal is NOT detected, the speedometer will continue to point at 30 MPH. At the end of the measured mile, press and hold the function button for 4 seconds. The speedometer will again point up and the tachometer will point to 8000 RPM (exit). The speedometer is now calibrated. If you are finished making setup changes, press and hold the function button for 4 seconds with the tachometer pointing to 8000 RPM to exit setup mode.

1 4 5 2 3 6 RPM

x1000

7

0

8

13

50

8

18

0

100

3)

4)

5)

6)

Real-Time Speed Adjust: 1) 2) Enter setup mode. Tap the function button until the tachometer points to 4000 RPM 60 80 (real-time speed 40 MPH 100 VOLTS OIL adjust option). 20 120 Press and hold the 0 140 0 00 0 0 0 0 function button for 4 seconds to enter the realtime speed adjust mode. Begin driving the vehicle at a steady known speed (using a GPS or pacing another vehicle). The tachometer will remain at 4000 RPM to indicate the gauge is in real-time speed adjust mode. Pressing the function button will begin to increase the speed reading until the button is released. The next time the function button is pressed the speed reading will decrease. Continue adjusting the speedometer reading until the correct speed is achieved. If no adjustments are made for 8 seconds, the current calibration setting will be saved. The speed setting may still be adjusted after this until the key is turned off and will be saved again 60 80 after 8 seconds of 40 MPH 100 VOLTS OIL function button 20 120 inactivity. When 0 140 finished adjusting the 0 00 0 0 0 0 speed, bring the vehicle to a stop and turn the key off to exit the setup mode.

1 4 5 2 3 6 RPM

x1000

7

0

8

13

50

8

18

0

100

3)

4)

5) 6) 7) 8)

1

4 5 2 3 6 RPM

x1000

7

0

8

13

50

8

18

0

100

Information

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