Piston Travel vs Crank Rotation

Dodgy Kips motor? CDI? battery? diode? reg/rect? its all gobbledygook to me but some people understand it ask tham a question here
Post Reply
User avatar
Luders
Premix Junkie
Posts: 3808
Joined: Fri Jun 18, 2010 11:29 am
Location: Oxfordshire

Piston Travel vs Crank Rotation

Post by Luders » Tue Oct 14, 2014 8:54 am

For anyone using a programmable ignition who needs to calculate the above, I found this useful calculator

http://www.dansmc.com/mc_software2.htm

a = ignition advance in degrees
T = ignition advance in mm
R = engine stroke divided by 2
L = conrod length in mm

T = L + R·(1-cos a)-√L² -(R·sin a

Sorry, the equation was the best I could get it to look using the character map

User avatar
JanBros
Premix Junkie
Posts: 2986
Joined: Wed Jul 26, 2006 11:50 pm
Location: the land of Francorchamps
Contact:

Re: Piston Travel vs Crank Rotation

Post by JanBros » Tue Oct 14, 2014 7:12 pm

it is also included in my head calculator, both ways.

http://users.telenet.be/jannemie/Head%20Calculator.xlsx
You know it's cold outside when you trip over dog shit instead of standing in it.

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest