Hoglet ignition

[Jojo]

Gentlemen,
I am currently building a Hoglet engine.I’ve built plenty of single engines but never a twin.
I plan on using the Howell Tim- ignition kit that I’ve had great success with previously .
My question is do I need 2 coils and their drivers or will one suffice?
i would appreciate your learned opinion(s).
thanks in advance.

 

[propclock]

You need 2 coils 1 is a wasted spark . I use the Sage IGBT driver
available on this website. you do have to trigger the 2 cylinders
differently. So 1 driver 2 coils in series on the primary's 2 triggers
Hall with 2 magnets etc.
and the driver of your choice. Or dual output cdi available from CH?

 

[Jasonb]

I don't know if that is one that Roy at S/S is still doing. I have his Hoglet specific one which is dual coil, single hall sensor, two magnets but site looks like it may not contain some of the other parts, drop him an e-mail to check

http://cncengines.com/

 

[danallen]

Roy at S&S is still making an ignition system suitable for the Hoglet. Think he calls it wastefire. One module with a single input from a hall sensor and two outputs for the plugs.

 

[lantain1982]

I am using the Hoglet CDI unit put out by Roy at S/S. Easy follow instructions and produces a fat spark where needed.

 

[mrehmus]

Send me a picture for Reader's Engines when you get it finished, please.

 

[bluejets]

Old guy called Doc, posts in here from time to time, used a dual arrangement (on his Hoglet) of the enclosed pdf file (original from way back when.)
I made up a pcb layout of just one circuit ( you'll need 2) as he doesn't always post too much detail.

 

[AndrewW]

Hi
I got my twin ignition from justengines.co.uk
My video includes some more information...

Cheers
Andrew

 

[simonbirt]

I have some circuit boards for a modified version of this ignition system if anybody wants one. I had to order a batch and I have more than I need.

Not sure why you would use it with points though, would be simpler to use coil and condenser (capacitor) I would have thought.

 

[ozzie46]

I used a R/C aircraft 2cyl ignition system by Rcexl.
link Rcexl twin ignition for -NGK -CM6-10MM

Ron

 

[Jojo]

Send me a picture for Reader's Engines when you get it finished, please.

 

[Jojo]

Thanks to everyone who were kind enough to reply and send their opinions on two cylinder ignition .Now I can make an informed decision.
I’ll send pics of the Hoglet when completed.

 

[minh-thanh]

I have some circuit boards for a modified version of this ignition system if anybody wants one.

I would take one If I were near you .

 

[bluejets]

Doc's Hoglet with the above ignition system.

 

[simonbirt]

I would take one If I were near you .

I will see how much the postage is to Viet Nam.

 

[Jerr46]

I am currently building the Hoglet engine and I don’t see how the large camshaft gear is attached to the cam. I don’t see a keyway or a retaining screw. Am I missing something here? Thanks for any help.

 

[Jasonb]

Loctite

 

[bluejets]

I am currently building the Hoglet engine and I don’t see how the large camshaft gear is attached to the cam.

I don't see it either.....any drawing you can muster so we know what you are talking about...??

 

[Vietti]

I'm starting a build too. I suppose I will use locktite. What do others use??

John

 

[AndrewW]

I used Loctite 638. Make sure the joining faces are nice and clean.
Cheers
Andrew