Wayne.B wrote in
:

8,000 RPM without a proper lubrication system or cooling is not going
to last very long. That thing is putting out about 5 hp per cubic
inch which is comparable to a drag racing engine designed for 6 second
bursts at full power.



I delivered papers when I was a kid on a bike with a big newspaper boy's
basket on the front.....

On each corner of the basket, we affixed a Fox .60 model airplane engine
with a throttled carb opened with string back to the left and right
handgrips. Fuel came from a 1 gallon can we'd put a bottom fuel outlet
into, gravity fed. Fuel was model airplane fuel, home made with mineral
oil lube also used in our planes.

Wide open on a flat road with one kid on it, I don't think we ever found
our "terminal velocity" because the bike always came apart in some way
before we maxed out the climbing speed....(c; Bike speedometers only
went to 50, but the cable drive always overheated and failed as the
pointer wound around to zero again...poorly lubed for high speed....broke
the drive pin right off when they seized...

Mom didn't like it because our clothes were always soaked in lube oil
after a few miles buzzing around our little town. The cops busted us
when the neighbors complained of the intense noise of 3 or 4 air-powered
bikes drown out the TV in the living room...ending the fun. We used to
ride them out in the country, then light off the engines, after that.

I still have a few "self-induced scars" from these early adventures....
(c; In our little "gang", trying to get them to stop seizing over 12,000
RPM, way beyond their design rating of course, was more important than
fighting or doing drugs. We DID have sex with a few girls, though.

Seizing at 12,000 RPM was usually an "unrecoverable event"....(sigh)

Larry
--
http://www.spp.gov/
The end of the USA and its Constitution....RIP