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INSTALLATION INSTRUCTIONS

M S D   I G N I T I O N

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RPm Limit menu

Press Next until RevMax flashes, then press ENTER. This takes you to the RevMax rpm program 

screen.

Revmax menu

Press Next until the RPM flashes, then push the 

 or 

 button until your value is shown. Then press 

Enter which will take you to the Save Menu. 

save menu

Save will be flashing so press Enter. The screen will go back to the RevMax rpm value to show the 

new value/program.

Figure 4 Changing the Overrev RPM Setting.

PRogRammIng a Run tImIng cuRve

When using the Programmer to build a timing curve, you must program a timing value for every 100 

rpm. If you skip a step, the 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 curve. With the timing on the engine set at 36°, we 

want it to be 16° at idle and begin ramping up at 1,000 rpm. By 3,000 rpm we want to be back at the 

full 36° (This means 1° per 100 rpm steps). 

To get this incremental amount, divide the rpm range of the curve by 100 (rpm increments). Take this 

result and divide it by the total amount of timing changes to come up with the amount of timing that 

needs to be adjusted per step (100 rpm).  

main menu

Press Next until Retards flashes, then press Enter.

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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