I was looking for a couple of video's my friend Todd posted of some of his LSR attempts at both Maxton and Bonnevile (Honda NS50), but came across this PDF chart from a "fun run" he did a couple of winters ago.
http://racenssr.com/pdf/menom.pdfHe's just like us. Loves making "old junk" go faster and work (FAR) better than was intended...
I laughed when I scrolled down and saw his name (Todd Moen), what he was riding ('79 Arctic cat w/500 Suzuki free-air twin), and HOW FREAKING FAST it is in 1000'..... Compare his numbers to the "modern" sleds..
Only two sleds bested him that day, both of which turbocharged, fuel injected 1000cc four strokes.... Basically it took a turbocharged R1 engine to beat Todd on his 35 year old 500cc arctic cat..... One of them only by 5mph..