Originally Posted by massdrive
After lots of mods, and months of adjusting and tuning I finally broke threw the 40 mph barrier... 43.5 mph. I was riding on Lake Mead Blvd. side by side with traffic and wasn't looking at the speedo so I didn't even know I broke threw until I got home and was checking the stats on my trusty Iron Horse bike computer. It tells me all kinds of info like date & time, air temperature, ride time, miles ridden, compass heading, average speed, average ride time, calories I didn't burn pedaling, and of course max top speed.
I'm running a heavily modified 66cc China engine with single speed direct drive and a 36t sprocket on an adaptor. I use Opti 2 oil mixed at 100:1. The bike and engine have over 800 miles on them. Next comes a shift kit and than I'm going hunting for 50 mph...
YOU JUST INADVERTANTLY GAVE ME SOME INFO I WAS LOOKING FOR ABOUT OPTI 2 !!!!
i was wondering how well it would hold up under sustained high rpm driving, as it turns out that with 26in wheels and a 36t rear and you going 43mph your motor should have been turning around 8,000 to 8,500 rpms for quite a few min !
i would love to see this done at 40 with a 44t rear but over 8,000 rpms is what i was after when looking into opti 2 for race driving and it would apear you put it right up there..
how well did the bike stay at the proper operating temp ? did it over heat ?
and have you taken off the head and looked into the jug for scoring ???
i would like to know whaT YOU THINK ABOUT THE PERFORMANCE OPTI 2 OFFERS AT High rpms from your experiance so far and what mix ratio were you useing ?