[Diy_efi] SAE Corrections
Doug. Allison
dallison at iafrica.com
Wed Apr 2 15:39:53 GMT 2003
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I'm doing some inertia dyna runs, but I'm a bit suspect about the =
corrections I have. I was always
under the impression humidity had a part to play ? Not only temp. and =
pressure.
=20
This is what I have.
=20
DIN 70020 ((((273+T)/293)-1)*0.5)+1) * (1013.25/P)
ISO 1585 (((((273+T)/293)-1)*0.6)+1) * ((((977.3/P)-1)*1.2)+1)
SAE J1349 ((1.18*((99/(P*0.1)*((((273*T)/298-1)*0.5)+1)))-0.18)
EEC 80/1269 ((((273+T)/293)-1)*0.5)+1) * (977.3/P)
=20
Temp is in Centigrade and Pressure in mbar.=20
Anyone ?=20
=20
Many Thanks,
Doug
PS: Are these corrections current?
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<DIV><FONT color=3D#000000 size=3D2>I'm doing some inertia dyna runs, =
but I'm a bit=20
suspect about the corrections I have. I was always</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>under the impression humidity had a =
part to play=20
? Not only temp. and pressure.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>This is what I have.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>DIN =
70020 =20
((((273+T)/293)-1)*0.5)+1) * (1013.25/P)</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>ISO=20
1585 =
(((((273+T)/293)-1)*0.6)+1) *=20
((((977.3/P)-1)*1.2)+1)</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>SAE J1349 =
</FONT><FONT=20
color=3D#000000=20
size=3D2>((1.18*((99/(P*0.1)*((((273*T)/298-1)*0.5)+1)))-0.18)</FONT></DI=
V>
<DIV><FONT color=3D#000000 size=3D2>EEC 80/1269 =
((((273+T)/293)-1)*0.5)+1) *=20
(977.3/P)</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>Temp is in Centigrade and Pressure =
in mbar.=20
</FONT></DIV>
<DIV><FONT size=3D2>Anyone ? </FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>Many Thanks,</FONT></DIV>
<DIV><FONT size=3D2>Doug</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>PS: Are these corrections=20
current?</FONT></DIV></DIV></BODY></HTML>
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