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Why Dyno graph jumps around?? *Pic & Video inside*

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Old Oct 2, 2013 | 08:56 PM
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Default Why Dyno graph jumps around?? *Pic & Video inside*

I had a free pass to get 3 dyno pulls, so I took my car today for the hell of it.

I thought usually the graphs are suppose to be a smooth curve, not like mine.

I'm assuming it's probably because of the shift points not being dialed in that would cause this? I have 3.73 gears which the speedo has been calibrated but nothing has been touched with the shift points. I punched it in 3rd gear then it seemed to kick down a gear, revved up to about 5500rpms and shift into next gear when it tach'd out at 6200rpms or so.


Is the torque kind of low also?
Car has SLP lid, LS6 intake, & LT's w/ory


VIDEO CLIP:

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Old Oct 3, 2013 | 04:44 AM
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can you get ahold of the dynojet drf file for that pull?

then I could break it down for you
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Old Oct 3, 2013 | 09:14 AM
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Originally Posted by NotoriouSS
can you get ahold of the dynojet drf file for that pull?

then I could break it down for you
No I wont be able to. I wish I could for you though
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Old Oct 3, 2013 | 09:27 AM
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I would suspect letting it downshift on the dyno is what caused that. You are not supposed to do that. You should either get the roller moving to a high enough speed it won't downshift or lock it into gear with tuning software.
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