So what's this engine??

[Bluechip]

Found this pic. Any ideas?




Looks like a USA engine ( US flag on newspaper ).

Got nowhere looking for Strand Motor. Not useful anyway ..

So how does it work?

Face cams, like the Capriolo ?? OHC drive ??

Other suggestions..

Dave BC

[Brass_Machine]

It's off an old (1914)motorcycle....

Andrew Strands fabulous Cyclone motorcycle built in St. Paul, Minnesota

LINK

[Brass_Machine]

It's a cool old bike.

[Bluechip]

Thanks, Eric ... what service ... 

Impressive engine .. 45 BHP/ litre in 1915 .. most UK cars didn't get there until 1980 .. 

Never heard of Cyclone ... looks the part for a tracker though, damn great engine, and just enough metalwork to prevent gravel-rash on the riders a4se ..

Dave

[Brass_Machine]

That would be an interesting engine to make in say, 1/2 or 1/4 scale...

[Bluechip]

That would be an interesting engine to make in say, 1/2 or 1/4 scale...

Wouldn't it just ??

So, as it's undoubtably beyond my talents, you'll have to make it.

I look forward to your build log ... 

BC

[Deko]

Love the drive to the cams and magneto. so who is going to take up the challenge? Come on STEW it looks just up your street

Dek

[BillTodd]

Are these bikes/engines actually that old or are they modern replicas? (is there provenance?)

The engine in the OP's post appears to be a newly made replica of the patent(?) sketch engine. The engine in the yellow bike is different - it has offset cylinders and matching OHV drives whereas the above engine has both cylinders in the same plane (as per the sketch).

Bill

[John Stevenson]

These are what is known as Board Racers and raced around board tracks in the US of A.
Not sure about the provenance of this one, needs a bit more digging but those casting look new as opposed to reclaimed.
A genuine one sold for $520,000 in July 2008.

However take a look at this link.

http://flashbackfab.com/pages/excel00.html

This is an Excelsior project

[Jasonb]

Thanks for that link John, just spent 1/2hr looking through the pics, will need to go back and read it. Some very interesting machine set up but thats whats needed for small batch work.

I can see a few modifiocations to my Hoglet comming on and now know what to hang it in.

J

[Brass_Machine]

The original picture was taken from a US company who specializes in rebuilding/parts for antique motorcycles.

http://www.competitiondist.com/services.php

Under the picture of the cycle engine...

WE WILL MACHINE PARTS FOR MOST ALL ANTIQUE MOTORCYCLES

It may be a reproduction casting.

[John Stevenson]

Shee ite.
$2,300 for a set of forks.
Where's me book of drawings ?