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  #1  
Old 05-20-2009, 06:57 AM
bg6373 bg6373 is offline
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Default boost retard

I HAVE INSTALLED A NEW F-2 PRO CHARGER ON MY 406 IT SHOULD MAKE ABOUT 20 TO 25 LB OF BOOST I ALSO INSTALLED THE 7535 BOX WITH BOOST RETARD I WOULD LIKE TO KNOW HOW TO BASELINE A TIMING CURVE I PLAN TO TURN ABOUT 7000 RPM AND LEAVE AROUND 3500 TO 4000 RPM BUT I DONT UNDERSTAND HOW TO DESIGNE THE CURVE FROM THE GRAPH AND APPLY IT .THANKS
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Old 05-26-2009, 12:37 PM
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68bird 68bird is offline
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Simple.....just start adding dots in the graph and pull the dots around until you have the graph like you want. An easy start would be to have two dots, one at 0 psi / 0* retard (which will be around 14psiA) and another dot just past your max. boost number where you want the maximum retart. Simple as that.

Craig
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Old 06-03-2009, 10:39 AM
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msdtech21 msdtech21 is offline
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Remember that you need to start at atmospheric pressure. Turn the ignition on. Dont start the motor. In the boost retard curve window, the red line will move. Wherever the red line ends up is atmospheric pressure from there anything to the left is vacuum, and anything to the right is boost.

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MSDTECH21
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