Yes John, from a turbo Saab. I believe it's a 3 bar sensor, but I might be wrong on that.

 

I have been logging boost on the ST2 with this MAP sensor:

http://www.newark.com/jsp/search/pro...-OP&CMP=AFC-OP

It's the one used in Megasquirt applications. I got one of those 12V - 5V USB charger receptacles that plug in to a car's 12V socket and just soldered the sensor in there. Then just connect +12 and ground to it, give it a vacuum line and connect the output to an ST2 aux line and you have a boost display in ST2. I like the above sensor because it's cheap and it has a very linear output that is well published:

http://www.freescale.com/files/senso...t/MPX4250A.pdf

Dan
'91 928GT S/C 475hp/460lb.ft

 

Using that sensor as well :-)

 

DUDE..im way ahead of you. did that a few years ago! When i go down stairs i can pull it out of my parcel tray and give you the part number. It was some GM item i think. I even have the voltage table. Being the way i am, I hooked up a regulated air soruce and a volt meter and check the volts vs PSI display and X-checked it with my "analog" autometer gauge and set up my own lookup table. You can hook up a vac guage also and and get a vacuum reading.

Sorry to hear about the TT..i HATE that job. HEAVY...awkward..etc. At least it happend going INTO winter!
I just hauled my old core from 3 years ago back to Sharktoberfest. I dunno what the statue of limitations is on a core charge!

 

It's a 2.5 bar

 

Still have a few odd areas to get to but Ive got the "really illegal..do you know how fast you were going....your going to jail " part of the map covered.

Car is really running nicer now.

 

Looks good, Tony !

 

Sweet!! Looks great, Tony-- Thanks for posting that!

 

Tony, Thanks for posting your "map".
It brings up a question. Obviously, your car is running GREAT with the WOT area tuned to approximately 12-12.5. When I started tuning mine the consesus for optimum performance was 12.9 to 13.1 Do you find a significant advantage with the richer mixture? What are you other supercharged people tuning to?

 

My WOT tuning target is 12.7:1 - 13:1 under 2,500RPM and ~12.5:1 over 2,500RPM.

Dan
'91 928GT S/C 475hp/460lb.ft

 

I'm liking sharkplotter a lot. Nice straightforward approach to seeing logged data and changing the maps.

Now the questions for those with experience

Firstly, If I have a project open - once I save the adjusted map back to the LH using ST2, should I open a new Sharkplotter project with a new base reference map?

Its what I'm doing currently - but I noticed that the adjusted map is also saved, so wondered whether I can just add more data runs to the initial project and carry on adjusting to my hearts content? Otherwise it gets a little messy in the project folders, as its handy to test the changes. If I have to copy the contents of the adjusted map file into the base map file thats fine - I'd just like to know what the recommended practice is

Secondly - how does the "Smooth" function work in the tool for Adjusting Fuel Map? The only reference I can find in the manual to smoothing relates to the options screen. I'd like to know what the horizontal and vertical sliders for the smoothing do

I've got my non-cat map fixed up a bit in the range for tomorrows emissions test - I ran out of room on the adjustment initially (lots of -127's on the adjusted map) but pulling back the opening time has fixed that (I'm running 4-hole Bosch design III 19lb injectors - which flow 2% more than stock even before taking into account a faster opening time).

I forsee a lot more data logging in my near future

edit: oh.. thirdly. Does sharkplotter install on 64-bit windows? I tried to get it onto my desktop so I can look through log files in comfort witha huge screen, but it doesn't appear to run. Am I missing some dotnet libraries or something?

 

Hi Hilton,
Jim is the expert, but I would advise you don't start a new project, but just a new run, then copy the new map to that folder renamed "base map". With that name the SP should pick it up automatically.

I believe JIm can advise on your further two points.

 

Hilton,

Glad to hear that Sharkplotter is working well for you. As John mentioned, the simplest approach is to use the same "project" folder and create a new "session" folder under that for each new set of maps and run-files. SP doesn't inherently know which run files go with which maps, so some level of organization is needed.

That said, there are lots of different ways to organize data-- some folks organize everything into folders by date, others have one folder for maps and another for run-files with descriptive file names, etc.

So there are two ways to load data and maps into SP: Either as individual run and map files through the "File" menu, or using the "project manager" window. The project manager is convenient if you follow SP's folder convention: a "project folder" for a particular car, and below that a series of "session" folders with maps and runs for a particular tuning session. If your data is organized differently then it is simpler to open the files individually.

The "smooth" function in the map-adjustment window is a relatively simple algorithm to reduce the cell-to-cell variation, by combining adjacent values with a weighted average. The slider controls the "span", how far the averaging reaches out to adjoining cells, vertically and horizontally. A typical span might be 1.6 horizontally, the fractional-cell seems silly but what it is controlling is what fraction of the adjacent cell is used.

The adjusting and smoothing algorithms are something I am working on now, along with a 3d map representation to help visualize the shape of the maps. I'll have a beta out shortly, watch this space.

And yes, SP works fine with Win-7/64 but I don't think the installer is getting it into the correct folder. It needs to be in the same folder as Sharktuner, "Program Files" for 32-bit and "Program Files (x86)" for 64-bit versions of Windows. Just copy the files to the Sharktuner folder.

Cheers, Jim

 

Excellent, thanks for that.


Ah yes, I forgot that I needed the ST files too. Just fixed it and now have SP open on my desktop.

 

Finally geting to use SharkPlotter for first time. Same as Ben (FUSE69), I'm also geting division by zero errors on Windows 7 Lite. Though I think Plotter version is older than 1.0.018 if it makes any difference. Was there ever any solution for this error or do I just find different laptop to run it?