How accurate is Data Log Lab??
03-17-2008, 09:46 AM
#1
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How accurate is Data Log Lab??
I finally got around to getting some data logs of my car and was playing with them im DLL. I got it to show a power graph (with needed input..weight,gear,transmission) and it's showing some hp/tq numbers. How accurate is this?
Side note, anyone have much exp. with this program? Im having some trouble understanding some aspects of it :(
Side note, anyone have much exp. with this program? Im having some trouble understanding some aspects of it :(
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03-17-2008, 10:29 AM
#6
There are elements it just can't account for - like grades and wind. I made adjustments to the settings for the "power" results to match my dyno sheet - but they were way off on my peak horsepower and way under on my curves pre-peak. Nearly everybody says the same thing - use it for before and after tuning, but not for making dyno power claims.
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03-17-2008, 10:32 AM
#7
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the power curves in DLL dont resemble dyno curves. Here's a fun example:
here's a real dyno plot of my car (not at the same time)
I have the datalogs from the second graph at home. maybe I'll run those through DLL and see how the curve looks for you.
here's a real dyno plot of my car (not at the same time)
I have the datalogs from the second graph at home. maybe I'll run those through DLL and see how the curve looks for you.
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03-17-2008, 10:59 AM
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^^ which would imply that it isn't far off the crank hp (+- a few hp). So i figure maybe 15% loss in drivetrain and get 260rwhp and 237rwtq
And this is at 10psi. (ok, 10.5). While i wait to gather funds to take it to get dyno tuned, i sent Jeremy the data log and map for fun to see what improvements he can make. I want to hook up the EBC and run 12-13psi..which should get me closer to 270-ish.
And this is at 10psi. (ok, 10.5). While i wait to gather funds to take it to get dyno tuned, i sent Jeremy the data log and map for fun to see what improvements he can make. I want to hook up the EBC and run 12-13psi..which should get me closer to 270-ish.
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Unless there's more to your car tan stated in your sig. 
03-17-2008, 12:46 PM
#13
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03-17-2008, 02:28 PM
#17
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and 3" exhaust.
but I mean you can use DLL for power graphs. just dont compare them to a real dyno. the best way to use DLL power graphs is to find a stretch of road that is the following:
1. long
2. flat
3. cop free
4. point A easily entered from a dead stop or <10 mph in 2nd.
5. point B easily exited shortly after redline in 2nd.
6. has a quick route from point B to A with a parking lot and good lighting
and then you can do a run, make changes, do a run and see if you improve power or not.
but I mean you can use DLL for power graphs. just dont compare them to a real dyno. the best way to use DLL power graphs is to find a stretch of road that is the following:
1. long
2. flat
3. cop free
4. point A easily entered from a dead stop or <10 mph in 2nd.
5. point B easily exited shortly after redline in 2nd.
6. has a quick route from point B to A with a parking lot and good lighting
and then you can do a run, make changes, do a run and see if you improve power or not.
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03-17-2008, 05:10 PM
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hmmmmmm
I do want to go with a 3" system...but that would require a BEGI or custom DP and custom exhaust.....both cost more money then have to spend at the moment :(
I do want to go with a 3" system...but that would require a BEGI or custom DP and custom exhaust.....both cost more money then have to spend at the moment :(
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