Changed location now tune is alittle off!!

[selmerguy]

I just converted to dsmap and did all my tuning in Austin Tx. I am in the army and have to go to school it Ft. Leonardwood Mo and my tune seems to be abit off. I decided to do a few pull here to make sre my car made the trip ok and I saw knock. I orginally had my car tuned to 0 knock and I saw 21 degrees of timing at 7000 rpm. Now my car knock at about 4000 and it does it every time. I saw 16 counts. I checked out my logger and I am running about 12.3:1 afr at 4000 when I was at 11.6:1 in Texas. I dont know how many people actually travel with their DSM's (scary thought I know..) but this is something to think about. I never thought such a small change in climate could do so much. I could see moving to denver or something but austin is 550 feet above sea level and here it is 1119. Pretty cool huh?

 

[Zenja]

That's odd. I think that theoretically a change in altitude shouldn't change the tune, even with the speed density setup. That's not even a big change in altitude.