RE: RE: Scratch Built Ignition???
 

That sounds very interesting - could you post a picture of your featherlite for us to see??

Thanks
Ramrod25

RE: RE: Scratch Built Ignition???
 

Hi,

Your project sounds great and I would be glad to help in any way I can. The CH Ignitions unit works very well, and they are nice to work with, but darn it, 89.95 is just too much in my opinion. I really think it could be done cheaper, and a person could still make a buck.

Let me know if I can assist, and feel free to check out my posts/activity. I have engines from 23 to 58cc, of various makes.

Capn John... things are going well and I will post those pics you wanted to see tonight if I can get to it!

Take care and good luck,
AV8TOR

RE: RE: Scratch Built Ignition???
 

av8tor: Thanks for the reply. I agree about the prices should be less. Capt,n

RE: homebuilt ignition
 

:DWell all, I called Ch on Friday and talked to Bill. He said that his spark coil wouldn't work with the tim-6. He said that the modelelectric coil is the one for that system as Dr Crash has used in his. He did make an offer I couldn't resist. Spark coil and board wired for a little over 50.00:D. So I said sure. Still will have to buy a modelelectric coil or find used a 6 volt motor cycle coil to get the tim-6 running..So off to the junk Yd[>:] in the morning..........

RE: RE: RE: Scratch Built Ignition???
 

Hi Rambo RCU
just going over some of the back posts you mention your Q35 not running well on the tim-6 ing. If I remember right we use to run thoughs at about 7 dto 7500 the 75 deg. of dwel would be excessive as I think I figured about 51 deg. at that rpm if that is correct the longer dwell would heat the coil and make it short lived well just a thought. Luck

RE: RE: RE: Scratch Built Ignition???
 

It's not the dwell that heats the coil, it was never made to take the voltage a CD circuit puts into it, somewhere around 300 volts..The insulation is just not good enough for sustained operation...
My belief that most people don't read these threads has been reinforced...Read post #113 :eek:
Hey, if Bill will do that forget post #`113...Very little profit there....:D
And it COULD be done, just takes cubic $$$ to buy enough to get started..Go for it, join all the other businesses that have moved overseas...[sm=drowning.gif]

RE: RE: RE: Scratch Built Ignition???
 

Well said Rcign1. At the rate we are going the only items we will be able to buy U.S. made will be Grain. I think the fellows that are playing around here are just trying to find a way to lighten the weed eaters and chainsaw engines without spending a small fortune for the major manufactures. I know for a fact that being on a limited income one needs to conserve resources. BTW thanks for all your input and help on the Universe the past years......:D:D:D

RE: RE: RE: Scratch Built Ignition???
 

Here is post #113 Anyone wants another "blue light special" I will sell you a built and tested circuit and a hall sensor and magnet for $35 plus shipping..It takes 200 ma at any speed and will run on 4.8 or 6 volts..I have used these for 16 years and they are very reliable...They are larger than the C&H circuit....You will need a spark coil ..This is the bare circuit only, no box..
Coils are available from C&H, boxes from Radio Shack....I don't recommend Modelelctric coils because of the high voltage input from the CD circuit..... end of post#113

RE: RE: RE: Scratch Built Ignition???
 

Balsaone thanks for your input as to the coil being overly dwelled i did my calculations based on 9,000 rpm which is quite possible in a dive that should figure out to about 75deg. dwell if I figured correctly >BTW i'm using the Tim-6 circuit so should'nt be sending too much voltage to coil and have never even noticed it anyting but slightly warm.Did you say you have definately ran your engines on Tim-6 circuit?Iv'e ran mine several times with varying results one time it particular it ran so well it surprised me .Later Dude

RE: RE: RE: Scratch Built Ignition???
 

Dwell is Dwell. It has nothing to do with RPM. It is an amount, expressed in degrees, that current is flowing in the coil.

RE: RE: RE: Scratch Built Ignition???
 

Hey TKG, why bother ?
The average American modeler is convinced that he is being ripped off..Let 'em buy all the TIM 6 ignitions and Modelectric coils they want, maybe then they'll learn [8|
You can read a horse to water but you can't make him drink...:D

RE: RE: RE: Scratch Built Ignition???
 

I deleted all my postings where I talked about Glow ignitions. It sure would be nice to be able to delete the entire post. Then as we went along with this good thread, each person could get rid of un-needed data. All that would be left is the "good facts". No waste or repeats. Thanks Capt,n

RE: RE: RE: Scratch Built Ignition???
 

If anybody can figure out how to sell a reliable ignition with a 20kv output, for $30. I'll buy them 500 at a time

RE: RE: RE: Scratch Built Ignition???
 

MAN!!

This particular thread is going "To hell in a handbag" quickly!!

My dad always said he thought the baby boomers would end up having a revolution because their spending power, freedom, and happiness was fast being taken away from them. Well, he had a point, but the "revolution" part of it never happened.

Everything from rent to milk to postage stamps to gas to model parts and all you go to buy in between have increased by a factor of 4 to 5 in my lifetime, and I can sure tell you that my pay has not increased commensurately!!

I'm real sorry if others think I'm crazy to feel that paying $79.95 for a complete brand new weedeater to get the engine, and then having to pay twice that for a few pieces to use it in a model is too much!! Yeah, yeah, I know, mass production. Well, if I can't save every dime I can, every PLACE I can, I can't afford to play these games anymore, which takes us right back to paragraph two!

Sorry guys, I just had to vent a bit here.... Now let's get back to modeling.

AV8TOR

RE: RE: RE: Scratch Built Ignition???
 

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RE: RE: RE: Scratch Built Ignition???
 

Hey TKG, how about mine ? Maybe I should gear up for mass production :D

RE: RE: RE: Scratch Built Ignition???
 

Old Proverb
"To make a small fortune in model business, start with large fortune":D
To which I'll insert "while trying to out guess the American Modeler"
[:o]
Sorry RC we already are mass producing one, just not for $30[X(]

RE: RE: RE: Scratch Built Ignition???
 

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RE: RE: RE: Scratch Built Ignition???
 

Come on guy's can't we all just get along? seriously this thread has been the best most informative one I've visited yet, let's get back to the the matter at heart "Scratch built ignitions" Ok? You guy's are the best.Thanks> Rambo

RE: RE: RE: Scratch Built Ignition???
 

AV8TOR
I feel for you. We have looked everywhere for weedie short blocks. After all if they can sell a whole weed wacker for $70 and the retailer, distributor and manufacturer all make a profit, how much should the short block be direct??
But when you say airplane engine, it gets real quiet and the next person you are taking to is the company lawyer.[:'(]
In the mean time the cheapest way is getting one from the lawn repair shop junk pile and running the mag.

RE: RE: RE: Scratch Built Ignition???
 

All true. The fact is, I've scoured the "throw away" piles of the repair shops, along with yard sales and swap meets, and have quite a collection of engines for which I've paid almost nothing. That makes it even harder though when I look at paying $100.00 plus to buy conversion ignitions, etc. for them. I used to pay less than that for complete good quality .60 size engines not long ago and before I got into gassers. Oh well, let's just play and forget the hassles huh?

Take care,
AV8TOR

RE: RE: RE: Scratch Built Ignition???
 

Don.t say Airplane engine. Just order 50 at a time. Tell them the equipment you put them on wears engines out fast. Like you use them in the dessert and sand eats them for lunch!!!!!!!

RE: RE: RE: Scratch Built Ignition???
 

50 engines ain't even gonna get them to answer the phone. We were trying for a 1000.

RE: RE: Scratch Built Ignition???
 

I'm not scared of a soldering Iron and some good tinkering, but I'm not seeing the level of schematics and parts availability for the CDI that makes me wanna run out and start picking up parts yet- how about a modern design that can be built from parts found primarily at the shack'- and a coil scounged from something easily located?
Eventually, we can hit on something truly cheap that will work well.
HBZ

RE: RE: RE: Scratch Built Ignition???
 

tkg
post 163
Good morning ,sir
Seriously, the CDI you wait for 30 U$S is wtih or without advance?
Yours sincerely
Jose
Argentina