The magazine, "Motorcycle Consumer News" (is that the name?) publishes in an annual issue, performance data (horsepower, quarter-mile dragstrip run times, etc.) of virtually all motorcycles in current production. The last "Performance" issue of the magazine I looked at on the Internet had KLR650 times; don't know if they carried 'em forward after the KLR650 standown or not.
As I recall, the KLR650 was around 15 seconds for the quarter mile; I imagine you could research data now through Google.
BTW, the KLR650 had slightly greater rear wheel horsepower than the DRZ!
“You better put down that gun. You got two ways to go, put it down or use it. Even if you tie me, you’re gonna be dead.” "John Russell" (Paul Newman), Hombre