ahh, just trying to estimate the largest 4th gear pull log that someone could load into VDR. Whats the largest data/sec. thats currently attainable with the offerings of dataloggers out right now for the evo's?

 

that would be DMA logging.

ZIAD!!??!

 

lol... i alredy sent him one it had 240logs.... i recon... with std mut and 2byte rpm... 300 is easily possible more with higher mut speeds.... i cant see anymore then 500 with the dam ever through.

btw sent u a doozer.... and its got knock glore

 

only 500? pretty sure I have done a whole lot more logging JUST the RPM, plus applying all of the known settings that allow for faster logging in Evoscan. I could be wrong though, havent logged in months now.

 

i havent tried dma with just 3 or 4 items.... might try tonight..

 

Guys

I downloaded VDR for the first time tonight, and went out and made some pulls.

I attempted to load the data into VDR but have failed, looking for some tips on what I'm doing wrong.

The car is my 1990 Nissan 300ZX with an RB26. The car is on an AEM, and has previously dyno'd 718/586 on a mustang dyno.

I've included some screenshots on how I set it up exactly, and yes, I was sure to SAVE the spreadsheet before posting

Data Entry Page







User Settings Page







Vehicle List Page







Dyno Graph Page








As you can see, the plot is not appearing. I believe I have exported the data correctly. I simply opened up AEMlog, zoomed in on my 3rd gear pull (I cut out the bottom 250 and top 250rpms) I then exported ONLY the zoomed in portion of the plot to txt file.

That text file can be found here

http://www.booztd3.com/Pictures/Tech...3rd_Gear_1.txt

I simply copy/pasted the data into the columns, and it would appear they imported correctly, judging by the screenshots.

Any help would be appreciated

Thanks!

 

Well, that was somewhat quick work.

I was using OpenOffice 3.01

I noticed that even upon downloading VDR 5.7, the dyno plot was not appearing, so I opened it up in my unregistered (and compatibility mode only!) Office excel, and there it was.

My workaround was basically to set the whole VDR data up in open office, save it, and then open it up in microsoft office for viewing only.....

 

thats quite a lot of ponies

 

I actually adjusted the weight of the car and it picked up to 755....I believe it will be more once I get an actual weight. I was just using the official curb weight of the car. Since adding a cage, 90lbs of turbo equipment, nitrous, blah blah blah, its probably more around 3700

I'm downloading the latest version of openoffice (3.2) now to see if that actually works....

And yes, ponies are fun

Big thanks to all you guys for getting this to work, I will def be spreading the word to all the AEM guys I know, and donating as well!

 

This is more like it....

 

Well I found a HUGE error in the WTQ curve with version5.71 (and prior) but I now fixed it!!!!!! Here is a comparison of my buddy Bills old Evo8 on a Mustang dyno when I tuned it. I embedded the ACTUAL dyno data into VDR on the comparison side so disregard any data read on the comparison side right now. You'll notice that the vehicle weight on the Base Pull side says 3625lbs, this is because the Mustang Dyno uses this default vehicle weight for his Evo and it must be done when comparing datalogs to accuarately simulate a Mustang Dyno. You use actual vehicle weight on street pulls though.

Anyways, as you can see, other than some crude smoothing that I am currently using it follows the dyno's results almost perfectly! This pleases me Before, the WTQ was generally higher than actual dyno results and the peak torque RPM was inaccurate from my mathematical error. As you can see, that's fixed I just need to finish up some of the crude smoothing stuff and it's gonna be ready.

I will be launching this one asap so people can make use of it but a friend of mine came up with an easy way for me to add a 1/4 mile POWER section that will show the HP from start to finish and also give you a total HP value to see if you were utilizing the most hp you could throughout the run, plus an average HP value too. It will be great to see if power drops off at the top of 4th gear from heatsoak,knock,etc...

I will also add a user adjustable MPH-to-MPH time clock to check your acceleration improvements with your power gains in certain parts of your powerband (i.e; 30-50MPH,40-60MPH,etc...) That'll be version 6.1 though.

 

and do i get all the code

seriosuly is there any change in the formulas mate i might need to redo my calculations then.

 

Once I am done you and Brad will get unlocked versions A few changes.

 

I noticed that also. the torque being higher. Thats why I started using DLL as a comparison as well. I really like the new look you gave the interface! (minus the colors )

 

the first time i used 2byte rpm..... and wow there is a very big difference and the loss of resolution going the normal rpm is huge, eg

see the red spots. obviosuly more noticible with DMA... i was getting 62lines/sec... ok with DMA 600+ samples are easily possible in 4th gear