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Discussion Starter · #1 ·
Ok guys just got my combo 582 fr3 procharge combo together.Wont rev past 6000 rpm and making no power.I have a new msd 7531 box.Its a blow through BTW.Builds boost to 28 pounds then drops off.Map sensor on the 7531 box not hooked up.Could this be the 7531 box,coil? Timing locked out at the crank.Car is on RW dyno.Any help would be appreciated.
 

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i've never messed with the 7531 box so i am just throwing this out there.

1) how many Bar is the internal Sensor good to?
2) does the 7531 box have a setting for overboost protection? What is it set at?
3) what are your plugs gapped at, you could be blowing out the spark.
 

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crap just saw the box's sensor isn't hooked up.....

Could you be out of fuel with the carb? maybe a jetting change will let it keep reving?
 

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Discussion Starter · #5 ·
a/f is 11.8 ,plugs gapped at 25-30 thou.Did find the problem keys at crank out put timing out 15 degrees.
 

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Discussion Starter · #7 ·
Of course! Just in a hurry when I did that post.
 
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