cummins auto efilive rpms?

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pxcr440

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Sep 13, 2010
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running a 07 with 200% overs at 2200 us ,2.6 x 3.25 precision, full motor build , dual pumps ,, 207-220-107 cam full manual vb coming out in 3rd gear then locking. 2800-3000 stall, truck has 4.56s and 35s.
truck spools up nice and lights hard but wont seem to get over 4200-4300 max unlocked and when locked pulls between 3500-3900 down the track and pulls down to about 3100-3200 at end of track spinning out just fine .
i guess what i am getting at is i would like to see it up to that 4500-5000 range off the line and pull 4k plus down the track.
just wondering if anyone is pulling those kinda rpms with there auto , tune is set at 5500rpm and is holding commanded rail perfectly. just trying to figure if i am limiting myself somewhere short of the auto itself
 
It looks as if your lacking air through the motor. Or power. If you have the power you think you should I can't see it pulling it down that far. Mine will only pull it down about 3-400rpm if that. I have seen 5000rpm with auto all the way down track
 
rpms

i can post a log later on when i get back to my laptop, the log shows holding 29k once at full throttle ,, here a clip of the last hook , i waited to lock up to see what rpms it would get too , the sparks are from center front driveshaft loop being to close and pinion diving a bit , took care of that

https://www.youtube.com/watch?v=j9hxNEqGT08
 
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