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SVTPerformance's Chain of Restaurants
Time Slip Bar
datalog at the track - make your test sessions count
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<blockquote data-quote="lindermant" data-source="post: 14983304" data-attributes="member: 32103"><p>have an SCT device? datalog at the track? add engine RPM, output shaft speed (drive shaft speed - <strong><span style="color: #00FF00">available on 2005+</span></strong>, maybe others), and clutch position (if manual) to your datalog config file.</p><p></p><p>monitoring RPM loss at launch/between shifts, tire spin (spike in drive shaft speed), and time between shifts (clutch position), along with a good video of your launch will tell the tale...</p><p></p><p>logged a run last night: blue = engine RPM, purple = driveshaft RPM, gold = clutch position (on/off). </p><p></p><p>launch, 1-2 shift and 2-3 shift shown below. 12.446 @ 108.80, with 1.675 60' (DA hovered around 2000')</p><p></p><p>[ATTACH=full]654516[/ATTACH]</p><p></p><p>time between launch and clutch in for 1-2 shift = 1.751 seconds (it looks a little skewed because I expanded the x-axis)</p></blockquote><p></p>
[QUOTE="lindermant, post: 14983304, member: 32103"] have an SCT device? datalog at the track? add engine RPM, output shaft speed (drive shaft speed - [B][COLOR="#00FF00"]available on 2005+[/COLOR][/B], maybe others), and clutch position (if manual) to your datalog config file. monitoring RPM loss at launch/between shifts, tire spin (spike in drive shaft speed), and time between shifts (clutch position), along with a good video of your launch will tell the tale... logged a run last night: blue = engine RPM, purple = driveshaft RPM, gold = clutch position (on/off). launch, 1-2 shift and 2-3 shift shown below. 12.446 @ 108.80, with 1.675 60' (DA hovered around 2000') [ATTACH=full]654516[/ATTACH] time between launch and clutch in for 1-2 shift = 1.751 seconds (it looks a little skewed because I expanded the x-axis) [/QUOTE]
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SVTPerformance's Chain of Restaurants
Time Slip Bar
datalog at the track - make your test sessions count
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