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HPTuner arrived. Question

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Old 01-24-2005, 11:18 PM
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Originally Posted by Flyer
grippy, the 'Retard vs % Torque Reduction' table defines how much timing is pulled for the percentage of requested torque reduction.

*In Theory* ... if the PCM requests 100% torque reduction (during a shift), it's going to look at that table and see that it should pull 47* of timing based on the stock tables, or 24* of timing based on the table cut in half screenshot.
why are there two values for 100% request in seperate columns?
Old 01-24-2005, 11:21 PM
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does it default to the lowest valued 100% request?
Old 01-24-2005, 11:29 PM
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Which table are you referring to and which screenshot?
Old 01-24-2005, 11:35 PM
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Originally Posted by Flyer
Which table are you referring to and which screenshot?
50% screenshot, Engine Torque loss % due to spark retard, last 2 columns on the right.
Old 01-24-2005, 11:41 PM
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THat table is just about the opposite of the other table. I was hoping the help file would give more info like maybe why it's there, but it was no help. I couldn't tell ya why, but on a stock tune, that table, and the one directly below it in the screenshot go hand in hand with the values. I couldn't tell ya why though ...
Old 01-24-2005, 11:47 PM
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OK, got that, retard vs torque reduction, thank you

what about shift time, does that play any role?
Old 01-25-2005, 05:57 AM
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FLYER if I ever meet up with you I'm buying you some cold beer.
Just keep track on how many I owe you.
Thanks for the help.
Old 01-25-2005, 07:50 AM
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Shift time ... the best I can tell what it does is define the amount of time a shift should happen in. I think maybe to account for rev limiters. For example ... I have my shift points set at 6500, and the rev limiter at 6700, and shift times at .200, if the PCM thinks the engine is accelerating to quickly (will rise more than 200 rpm in .200 seconds) it will start taking steps to cut fuel or close the throttle blade because the PCM is under the assumption that the engine is going to hit the rev limiter before the shift completes. If not for this, I don't think that table has any affect.

900, not a problem! That's what we're all here for.
Old 01-25-2005, 07:54 AM
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Looks like my HPPIII bin is running lean some of my LTFT are +9 going to load stock bin and look at LTFT if they are better I will start my tune with stock bin.
Figured out how to change shift RPM and with the help of Flyer reduced TM.
I have been to HPTuner forum, lots of questions, hard to find the answers.
Will take some time but I will learn. Thanks to all the people helping me here.
Mabe a HPTuner thread on LS1Tech would be a good thing. Would help people
that bought HPTuner and might make more sales for HPTuner.
Old 01-25-2005, 08:55 AM
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Hey, what kind of connection does the cable have for the laptop? I'm hopeing its USB because i dont have a seriel.


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