Quantcast

V-twin ignition systems

Help Support HMEM:

danallen

Member
Joined
Jun 27, 2020
Messages
10
Reaction score
4
Location
Southcoast MA
As my Farm Boy engine nears completion I am looking ahead to my next project. I am considering a Hoglet V-twin. Since Roy at cncengines is scaling back his business are there other systems that work? He says he will continue to make his cdi systems as long as he is able but I don't want build an engine and not be able to finish it.
Thanks - Dan
 

pat_pending

Well-Known Member
HMEM Supporter
Joined
Apr 3, 2017
Messages
61
Reaction score
23
Hi Dan, I'd love to build one of those. I'm working up to it. Regarding the ignition I wouldn't worry too much as there are a number of commercial options and plenty of schematics if you want to have a go at building your own. Also there must be a manual contact-breaker option too ?

Take a look at the link below. I have the single cyl version running my Webster and it works well + not too pricey.

 

ozzie46

Well-Known Member
Joined
Dec 12, 2008
Messages
1,225
Reaction score
31
Hi Dan, I'd love to build one of those. I'm working up to it. Regarding the ignition I wouldn't worry too much as there are a number of commercial options and plenty of schematics if you want to have a go at building your own. Also there must be a manual contact-breaker option too ?

Take a look at the link below. I have the single cyl version running my Webster and it works well + not too pricey.

X2 on this ,I made several Hoglets and these work great.
Ron
 

doc1955

Gone
Joined
Aug 26, 2009
Messages
1,194
Reaction score
114
I put my own ignition system together for my twin cylinder mini hog. It has worked very well.

 

gbritnell

Project of the Month Winner!!!
Project of the Month Winner
Joined
Jul 16, 2007
Messages
2,717
Reaction score
620
When I built my own Vtwin engine years ago I had a dual fire coil that Jerry Howell was selling at the time and used it as a waste spark ignition. My timer (trigger) is a Hall transistor with a steel disc with 2 windows. I used it for years until it eventually went bad. In searching the web I found a supplier in England that sells the same coil. I don't remember the name but maybe somebody can jump in with the information. My ignition ar that time was the TIM 6.
 

doc1955

Gone
Joined
Aug 26, 2009
Messages
1,194
Reaction score
114
I'm using a board I put together and 2 auto coil packs that I use a ballast to bring the resistance to 2.5 ohms. The whole set up cost about $15.00 and some time putting it together.
 

bluejets

Well-Known Member
Joined
Apr 22, 2014
Messages
282
Reaction score
100
I'm using a board I put together and 2 auto coil packs that I use a ballast to bring the resistance to 2.5 ohms. The whole set up cost about $15.00 and some time putting it together.
I tried your coil setup on a 3v7 lipo without any balast resistors and it works fine.
As far as your 555 circuit which will fall over below 4v5, you could use the cmos version which will go down to 1v0.
 

cbooth

Active Member
Joined
Jun 16, 2019
Messages
36
Reaction score
77
Location
Scotland
Agree on the rcxel, I'm setting up the Lv uneven fire 90deg on my vtwin
 

Latest posts

Top