boxer engine

[sbdtasos]

i make a new test with a cdi from motor bike
the engine work very smooth
i already order a new rcexl ignition
here you can see the engine working with motor bike cdi

[ame]https://www.youtube.com/watch?v=3lNdRXjMYi0&feature=youtu.be[/ame]

 

[michelko]

cool...
something flowen away at 0:20 What Diameter is the Distributor?
Do you have detailed pics of it? maybe a plan?

I am fighting with the ignition on my bugatti 8 Cylinder

http://www.modelenginemaker.com/index.php/topic,6848.0.html


Michael

 

[sbdtasos]

cool...
something flowen away at 0:20 What Diameter is the Distributor?
Do you have detailed pics of it? maybe a plan?

I am fighting with the ignition on my bugatti 8 Cylinder

http://www.modelenginemaker.com/index.php/topic,6848.0.html


Michael

hello
that flowen part was a piece of steel that need for the hall sensor to give signal
gistriutor is 40 mm
i can send you the sketch if you want
nice thread your engine

 

[nparmley]

Awesome looking build. Have you finished?

 

[sbdtasos]

Awesome looking build. Have you finished?

yes engine finished and sold

 

[nparmley]

With the pistons looking like they are directly opposite of each other, what does the crank look like? Does the engine use a typical crank of 4 connecting rods to 4 separate crank lobes, or is it 2 lobes?

 

[sbdtasos]

With the pistons looking like they are directly opposite of each other, what does the crank look like? Does the engine use a typical crank of 4 connecting rods to 4 separate crank lobes, or is it 2 lobes?

yes correct
cylinders are directly oppostite and crank is with 2 lobes

 

[bluejets]

Called forked rods. Other option is offset big ends.

 

[ldsgeek]

yes correct
cylinders are directly oppostite and crank is with 2 lobes

That's more properly termed a horizontally opposed engine or a 180 degree V, since the pistons are on the same crank pin. A boxer has each pair of pistons moving toward TDC at the same time. This cancels out the tendency for the engine to try to rotate about the axis perpendicular to both the crank centerline and the cylinder bores. VW, Porsche, BMW motorcycles and Subaru are boxers. Ferrari made several 180 degree 12 cylinders which were not boxers (opposing pistons shared a crank pin).

 

[Brian Rupnow]

That particular rod configuration is called 'Knife and fork' .