Remy- yes, elevation does play a big factor, and I think your guess sounds reasonable. I live in Denver, and I think drag times go down about 1-1.5 here (don't quote me) /images/icons/wink.gif When I go up riding in the mountains (up to maybe 12,000 feet) the power loss is incredible, even at 1-2000 feet above Denver(5280').
My friend did a 10.438 and he couldn't keep the front end down. My friend's Camaro SS ran a 13.48 here in Tucson, next week we went to Phoenix and he ran a 13.002. Nothing was done to the car to change the performance. Both days were with a 1/4 tank of gas. The car is an auto so it wasn't that he got better or anything. So yes, elevation, air temp, humidity, and even different tracks can make a difference in times. To make a completely accurate comparison, everyone would have to run on the same track the same time. I did an 11.323 on my R6 in Tucson......time to go to Phoenix!! Let's go 996TLR.
my 1/4 times on my gsxr600 was like [email protected] or somethin like that. I read that the best that my bike will do is 10.3, of course this was the first time I ever drag raced a motorcycle before so I knew I wouldn't get in the 10s.
12.8 at 128mph??? Doubt it... That's liter bike type trap speeds. A friend of mine never ran down a track before on anything and ran an 11.7 with his bonestock YZF600 at 117mph. Notice the trap speed. Granted the Gixxer600 is loads more powerful be not 11mph more powerful.