I Donated thefultonhow Posted October 7, 2011 I Donated Share Posted October 7, 2011 It happens. Mild variations in the road surface, different slopes of the road, and all of that jazz. What'd you make the log with, RR? Was fast polling on? If yes and yes, then turn up the smoothing option a bit. Fast polling provides enough resolution that you can crank up the smoothing and still remain quite accurate. Yes, I used RR. I have no idea if fast polling was on; I didn't know that option existed. Turning the smoothing up to 7 drops the whp to 287 and the torque to 319 lb-ft, which is still a lot higher than my other pulls. Either my other pulls sucked, or something weird happened on that pull. Or maybe I had my cutout open? I wish I could log when my cutout is open and when it's closed. Link to comment Share on other sites More sharing options...
iNVAR Posted October 7, 2011 Share Posted October 7, 2011 Perhaps... are you logging the exact same stretch of road, going in the same direction, with the same intake temperature? Fast polling makes the sampling rate go up a LOT. It's right on the top of the main logger screen. From my thread: Thankfully, the new RR has a "fast polling" option that has allowed me to log a crapton of stuff and keep the polling speed very low. To give you an idea of how much faster "fast polling" is, I used to log these parameters: Engine Load (2-byte)** (g/rev)Engine Speed (rpm)IAM (4-byte)* (multiplier)Ignition Total Timing (degrees)Intake Air Temperature (F)Knock Correction Advance (degrees)Knock Sum* (count)Manifold Relative Pressure (4-byte)* (psi relative)Mass Airflow (g/s And the polling interval used to be just about 225ms. NOW, I log these: Boost Error* (psi)Engine Load (4-Byte)* (g/rev)Engine Speed (rpm)Feedback Knock Correction (1-byte)** (degrees)Fine Learning Knock Correction (1-byte)** (degrees)IAM (4-byte)* (multiplier)Ignition Total Timing (degrees)Intake Air Temperature (F)Knock Correction Advance (degrees)Knock Sum* (count)Manifold Relative Pressure (4-byte)* (psi relative)Mass Airflow (g/s)Mass Airflow Sensor Voltage (V)Primary Wastegate Duty Cycle (%)Throttle Opening Angle (%)Turbo Dynamics Integral (4-byte)* (absolute %)Turbo Dynamics Proportional (4-byte)* (absolute %) And my polling interval is about 97ms. Notice how many more things I've added AND how I'm using the 4-byte of some of the things. Link to comment Share on other sites More sharing options...
I Donated thefultonhow Posted October 7, 2011 I Donated Share Posted October 7, 2011 Perhaps... are you logging the exact same stretch of road, going in the same direction, with the same intake temperature? :lol::lol::lol::lol: I just drive around looking for places I can put down the hammer. Link to comment Share on other sites More sharing options...
BAC5.2 Posted October 7, 2011 Share Posted October 7, 2011 If you want some degree of accuracy, you really need to run the same road on the same day, in both directions with the same methods. Do it several times in each direction, then average the resulting graphs. [URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard Link to comment Share on other sites More sharing options...
I Donated thefultonhow Posted October 7, 2011 I Donated Share Posted October 7, 2011 Bah. Anyone know of a road with no traffic, no curves, and very few hills close to Baltimore? I swear they don't exist. Link to comment Share on other sites More sharing options...
bbarnhill Posted October 7, 2011 Author Share Posted October 7, 2011 come to memphis ... everything is flat and straight. Every light is a quarter mile waiting to happen. Link to comment Share on other sites More sharing options...
I Donated thefultonhow Posted October 7, 2011 I Donated Share Posted October 7, 2011 I do like the twisty, hilly roads, though... they just suck for 3rd gear pulls. Link to comment Share on other sites More sharing options...
bbarnhill Posted October 8, 2011 Author Share Posted October 8, 2011 well come visit memphis for a few days ... we will get some BBQ and some good runs. Link to comment Share on other sites More sharing options...
HDTurbo Posted October 19, 2011 Share Posted October 19, 2011 Dear comrades and critics - Using APv2, which data elements should be log? I anticipate sweatily you helpful, if corrosive, reply.... Mikhail Link to comment Share on other sites More sharing options...
bbarnhill Posted October 19, 2011 Author Share Posted October 19, 2011 if corrosive? You need Time, RPM, and TPS ... those are required and if you want you can log AFR and Boost. Link to comment Share on other sites More sharing options...
HDTurbo Posted October 20, 2011 Share Posted October 20, 2011 Yeah, I figured if I asked a question where I could have found the answer by searching, I'd get a corrosive answer. Just havin' fun! Thanks, I didn't find in my half-assed search which parameters I'd need to log. Mike Link to comment Share on other sites More sharing options...
bbarnhill Posted October 20, 2011 Author Share Posted October 20, 2011 ohh no problem i just didnt understand. Those are the only parameters you have to log to get a graph to work. Let me know if you need more help. Link to comment Share on other sites More sharing options...
xero287 Posted October 20, 2011 Share Posted October 20, 2011 So...why are my numbers the highest???? http://farm7.static.flickr.com/6178/6262175425_285972a611_b.jpg Link to comment Share on other sites More sharing options...
xero287 Posted October 20, 2011 Share Posted October 20, 2011 I do appreciate the 535 ft*lbs XDDDD Link to comment Share on other sites More sharing options...
HDTurbo Posted October 20, 2011 Share Posted October 20, 2011 if you truly had that torque you might have been able to avoid the T-bone! Link to comment Share on other sites More sharing options...
xero287 Posted October 20, 2011 Share Posted October 20, 2011 ...and the curb she slammed me in to. Link to comment Share on other sites More sharing options...
bbarnhill Posted October 20, 2011 Author Share Posted October 20, 2011 looks like you use an automatic transmission and that spike is before the torque converter is locked. Link to comment Share on other sites More sharing options...
HDTurbo Posted October 23, 2011 Share Posted October 23, 2011 06 Spec b Stage 2 - look reasonable? my butt dyno is virtually uncalibrated, so... Link to comment Share on other sites More sharing options...
charlie_sheen Posted October 28, 2011 Share Posted October 28, 2011 how come every time i click to download it on the site, my macbook "downloads" it but i click on it in the recent downloads and it brings up a bunch of chinese characters. WTF am i missing here? stupid smart computer Link to comment Share on other sites More sharing options...
iNVAR Posted October 28, 2011 Share Posted October 28, 2011 Because it's not for macs? Link to comment Share on other sites More sharing options...
charlie_sheen Posted October 28, 2011 Share Posted October 28, 2011 does it say that somewhere? Link to comment Share on other sites More sharing options...
iNVAR Posted October 28, 2011 Share Posted October 28, 2011 http://www.crimetank.com/misc/facepalm.gifhttp://imageshack.us/photo/my-images/15/facepalmanimtest03.gif/ Link to comment Share on other sites More sharing options...
bbarnhill Posted October 28, 2011 Author Share Posted October 28, 2011 Virtual Dyno is written for the Microsoft .NET framework so it works on any machine that has a .NET common language runtime. MAC has never implemented one. Link to comment Share on other sites More sharing options...
charlie_sheen Posted October 28, 2011 Share Posted October 28, 2011 http://www.crimetank.com/misc/facepalm.gifhttp://imageshack.us/photo/my-images/15/facepalmanimtest03.gif/ needs ninja edit Virtual Dyno is written for the Microsoft .NET framework so it works on any machine that has a .NET common language runtime. MAC has never implemented one. **** Link to comment Share on other sites More sharing options...
SurlyOldManMN Posted October 28, 2011 Share Posted October 28, 2011 I know CAN loggers can do speed but for some reason they dont. It would have helped GREATLY and cut down on calculations to record speed. Speed is also only recorded to the whole mph or kph which sort of cuts down on accuracy. I also try to keep the program where it works the same for all loggers and dont add special cases per logger. That way everyone gets the same attention and same support. It also does not become a support nightmare for this one man development army. You don't necessarily HAVE to be a one man development army. So uhhh... have you considered open sourcing this by chance? There is quite a bit of stuff in 3.5+ that could make your life a lot easier on the support/extensibility side of things. Generics, TPL and the xml stuff you get with LINQ would be very nice for this sort of thing. Link to comment Share on other sites More sharing options...
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