guitaraholic
01-28-2011, 02:11 AM
OK,, I'm looking into getting BW's new EFR turbo (7064) for my Sr'ed 240. Since there are only a few dynos out there. Both of which are on the extreme ends of the spectrum (audi is really low,, Sierra Sierra,, insanely high). I figured I would use the Matchbox,, and plot some dynos. To get an idea how acurrate they are I tried duplicating the Sierra Sierra Set up. This is what I got
This is using the 9180 1.05 A/R and 4900 feet elevation
To make this as accurate as possible. I kept the lines plotted away from the surge lines and inside the efficiency islands in the compressor map (did not get below 65%,) I matched up the correct compressor efficiencies and matched up the turbine size and A/R to the Turbine map (all on one line to the above spec). I also lowered the VE of the engine on low RPM because the EVO probably has huge cams, and lower VE below 4000 or so. Yes, I do realize that the torque and HP do not intersect at exactly 5252, but its a rough draft, and I work 65 hour a week, lol,, so I got this done in my spare time.
http://i199.photobucket.com/albums/aa306/guitaraholic2007/TheoriticalDynoSierraC.jpg
Compared to the Real Deal
http://i199.photobucket.com/albums/aa306/guitaraholic2007/borgwarner-efr-9180-turbo-content-10.jpg
So here is an S14 with the 7064, again, its theoritical but fun to dream for now
http://i199.photobucket.com/albums/aa306/guitaraholic2007/DynoPlotswithNumbers7064.jpg
Ok, here are two 6758 plots done up the same way
http://i199.photobucket.com/albums/aa306/guitaraholic2007/DynoPlotswithNumbers6758.jpg
http://i199.photobucket.com/albums/aa306/guitaraholic2007/DynoPlotswithNumbers7064a.jpg
This is using the 9180 1.05 A/R and 4900 feet elevation
To make this as accurate as possible. I kept the lines plotted away from the surge lines and inside the efficiency islands in the compressor map (did not get below 65%,) I matched up the correct compressor efficiencies and matched up the turbine size and A/R to the Turbine map (all on one line to the above spec). I also lowered the VE of the engine on low RPM because the EVO probably has huge cams, and lower VE below 4000 or so. Yes, I do realize that the torque and HP do not intersect at exactly 5252, but its a rough draft, and I work 65 hour a week, lol,, so I got this done in my spare time.
http://i199.photobucket.com/albums/aa306/guitaraholic2007/TheoriticalDynoSierraC.jpg
Compared to the Real Deal
http://i199.photobucket.com/albums/aa306/guitaraholic2007/borgwarner-efr-9180-turbo-content-10.jpg
So here is an S14 with the 7064, again, its theoritical but fun to dream for now
http://i199.photobucket.com/albums/aa306/guitaraholic2007/DynoPlotswithNumbers7064.jpg
Ok, here are two 6758 plots done up the same way
http://i199.photobucket.com/albums/aa306/guitaraholic2007/DynoPlotswithNumbers6758.jpg
http://i199.photobucket.com/albums/aa306/guitaraholic2007/DynoPlotswithNumbers7064a.jpg