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INSTALLATION INSTRUCTIONS 

M S D   I G N I T I O N

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First Retard menu

Note that RunCurve is not listed, but there is an * on lower right of the monitor which means that 

there is more to this menu. Push the 

 button to get to the next part of the menu, then click Next until 

RunCurve flashes. Press Enter. 

Runcurve menu

Use the Next button to get to the RPM down to 800 rpm, the lowest programmable rpm. Then use 

Next to maneuver to the RetDeg and use the arrows to set it to 20° of retard, then press Enter. This 

goes to the Save menu and select Enter again. 

Instead of moving through the entire menu Run Curve menu again, press Next until Copy is active. 

Now by pressing Enter, you’ll notice that the rpm setting is saved and the Monitor moves to the next 

rpm step (rpm). You only need to change the retard rate then press Copy again. Repeat this procedure 

for the complete curve. At Deg 0, press NEXT, and ENTER to save the programmed retard curve.

monitor mode

In Scan mode the monitor will scroll through all of the settings (or the ones you choose) so you can 

view each parameter when the engine is running.

MeNu DefINItIoNS 

This will display a 1 for No Cam Sync, or a 2 for Low Battery.

Alert
CamSync 

Copy   

CylCnt  
Distributor/

Cranktrigger

CylDeg 

 

GearRetard 

LaunchCurve  

LaunchRetard 

MagComp 

Monitor 

This lets you choose what parameters you can view while the engine 

is running, how long the view time lasts and confirm the Cam Sync 

signal.

This confirms that the ignition is receiving a sync signal. It will display 

either Sync or None.
This  comes  up  on  the  Run  and  Launch  Curve  menus.  It  eases 

programming each step by copying the value of the previous step, 

with auto increment of Rpm.
Cylinder Count, for the number of cylinders of your engine.

The amount of timing that you want to pull out of the accompanying 

cylinder. 0°-5.0° per cylinder in .1 Deg increments. You also need to 

program which cylinder is receiving the retard rate, but note that this 

is the cylinder sequence order on distributor, not cylinder number.

The  amount  of  retard  that  occurs  with  each  gear  shift.  A  different 

amount of retard can be activated for each gear from third to sixth.

This is the menu where you program the entire rpm curve in 100 rpm 

increments of 0.1° from 0 to 25.0°. This is active in gear 1.
This menu lets you program the retard amount and the setting to ramp 

it back to the LaunchCurve.
Magnetic Pickup Compensation. You can compensate for different 

magnetic style pickups (crank trigger or distributor) from 0° - 3°.

Selects type of input trigger device connected for optimization of the 

RevLimiter.

Summary of Contents for 7550

Page 1: ...he PN 7550 Figure 1 The top four are used for programming all of the features of the PN 7530 Ignition The two Launch Control buttons put you directly to the Launch RPM setting adjustment for last minute starting line changes ENTER This is used to open the selected field for further programming or to load a new program NEXT Pressing this button moves the cursor to the next field After making an adj...

Page 2: ...ON INSTRUCTIONS M S D I G N I T I O N www msdignition com 915 857 5200 FAX 915 857 3344 Menu Tree The following menu tree shows the different screens and programs of the Ignition and Monitor Figure 2 The Menu Tree ...

Page 3: ...you will be taken to the previous screen Save Menu This is the Menu that you have to go to in order to change a program When you hit Enter or Next after making a change in a program it automatically takes you to the Save Menu Note that there is another screen below the one that comes up as indicated by the lower There are five choices at the Save Menu When the Save screen comes up the Save command...

Page 4: ...timing retard will return to the default setting no retard for that rpm range It is highly recommended to draw the timing curve on a graph and figure out the degree rpm steps before attempting to program it into the Ignition MSD built in a copy function that will program the same amount of timing for each rpm though each step still needs to be Entered Following is an example of programming the Run...

Page 5: ...for Low Battery Alert CamSync Copy CylCnt Distributor Cranktrigger CylDeg GearRetard LaunchCurve LaunchRetard MagComp Monitor This lets you choose what parameters you can view while the engine is running how long the view time lasts and confirm the Cam Sync signal This confirms that the ignition is receiving a sync signal It will display either Sync or None This comes up on the Run and Launch Curv...

Page 6: ...gram the entire rpm curve in 100 rpm increments of 0 1 from 0 to 25 0 This is active in gears 2 6 This is the amount of time that a menu stays on the screen when it is in the Monitor mode It is adjustable from 1 9 seconds Default is 1 second The amount of time that the retard s will remain active after the circuit is deactivated If a retard is activated through a nitrous solenoid then the nitrous ...

Page 7: ...Retard2 00 Rpm 800 800 12 500 100 Retard3 00 Rpm 800 800 12 500 100 RetLaun Deg 0 0 0 15 0 5 RampTim Sec 50 0 2 50 01 Spark1 Deg 0 0 5 0 1 Spark2 Deg 0 0 5 0 1 Spark3 Deg 0 0 5 0 1 Spark4 Deg 0 0 5 0 1 Spark5 Deg 0 0 5 0 1 Spark6 Deg 0 0 5 0 1 Spark7 Deg 0 0 5 0 1 Spark8 Deg 0 0 5 0 1 CylCnt 8 4 6 8 Distributor Distributor Distributor CrankTrigger DropRpm 00 600 500 1500 100 RunCurve Rpm 00 800 80...

Page 8: ...nd shipping is covered by warranty For more information call MSD Ignition at 915 855 7123 MSD technicians are available from 7 00 a m to 6 00 p m Monday Friday mountain time M S D I G N I T I O N www msdignition com 915 857 5200 FAX 915 857 3344 2007 Autotronic Controls Corporation FRM28586 Revised 05 07 Printed in U S A TECH NOTES __________________________________________________________________...

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