Answer for ignition experts
#1
Thread Starter
Senior Member
Suppose we had an ignition system, which worked as follows:
We start and run the engine -- tune it as best we can -then shut the engine down, using the throttle shutoff.
Now suppose a little led blinks at a rapid rate and we check it with an optical tach -- and it reads the max revs reached
Or suppose we fly it and then shut the engine down --using the throttle to shut it down - and again the little LED blinks .
Again we tach it .
And we see---- what the max rpm is on the ground AND the maxrpm in the air---
would that be a nice feature?
I think it is - I just got an engine with this ignition-----
To be quite candid - I have not checked the whole thing out - but based on their claim -and what I see in the box -and having run their other products ,---- this system is a Showstopper.
We start and run the engine -- tune it as best we can -then shut the engine down, using the throttle shutoff.
Now suppose a little led blinks at a rapid rate and we check it with an optical tach -- and it reads the max revs reached
Or suppose we fly it and then shut the engine down --using the throttle to shut it down - and again the little LED blinks .
Again we tach it .
And we see---- what the max rpm is on the ground AND the maxrpm in the air---
would that be a nice feature?
I think it is - I just got an engine with this ignition-----
To be quite candid - I have not checked the whole thing out - but based on their claim -and what I see in the box -and having run their other products ,---- this system is a Showstopper.
#6
Thread Starter
Senior Member
I am waiting on the rest of the shipment - But - my friends tell me that - yes it does work as advertised.
It was developed for a racing application - where they needed to know just what the engines were turning in the air -
My electronics guys here say - it should work fine -
Being reluctant to advertise stuff which is "not exactly ready "-----------
Iwill wait for my own tests.
The other part of the story is that it is a production item.
I should have production parts to run, within the week.
It reminds me of the "tattletale" setups for long haul truckers -
Basically - you read the blinking light with the tach -after the engine is shut down -
The ignition has a stored memory of the max rpms during the last run.
It was developed for a racing application - where they needed to know just what the engines were turning in the air -
My electronics guys here say - it should work fine -
Being reluctant to advertise stuff which is "not exactly ready "-----------
Iwill wait for my own tests.
The other part of the story is that it is a production item.
I should have production parts to run, within the week.
It reminds me of the "tattletale" setups for long haul truckers -
Basically - you read the blinking light with the tach -after the engine is shut down -
The ignition has a stored memory of the max rpms during the last run.
#9
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From: concord, NC
How bout just a digital display with a "memorized" peak, and a bit of memory as well so that you can see a time-correlated series of up to 25-30 rpm "peaks" which you would then match to certain parts of your flight?
Anything is possible if you stuff enough circuits into the little box . .just a matter of wanting to do it. This system "sounds neat" but in reality it's technology is about 20 years old. They had "Memory Tachs" back in the 80's, for cars, that electronically stored the highest rpm reading, then indicated it with the push of a button on the tachometers face. Same princple, same technology, 25 years ago.
Be nice to see an "improved"version of this. . .
Anything is possible if you stuff enough circuits into the little box . .just a matter of wanting to do it. This system "sounds neat" but in reality it's technology is about 20 years old. They had "Memory Tachs" back in the 80's, for cars, that electronically stored the highest rpm reading, then indicated it with the push of a button on the tachometers face. Same princple, same technology, 25 years ago.
Be nice to see an "improved"version of this. . .
#12
Thread Starter
Senior Member
The cost?
don't know yet - It is actually the standard ignition which comes on a new engine -
But- it uses a standard Hall switch pickup - and has a detachable high tension lead - designed to accept different leads which have other sized caps. the connector is much like a co- ax cable connector .
That is really a nice touch!
The specs call out 30 degrees auto advance .
Power connector is JR compatable.
The read out LED is on a long pigtail -for easy mounting.
It all looks to be easily adaptable to just about any engine.
Again -I have not done the hands on test.
I have no reason to doubt that it works - just waiting for the actual test.
The factory has not done any press release yet -that's why I have not given their name.
I thought it is a big step up over anything on the ignition market - and wanted to see if others felt the same.
I plan to useit on the new engine, as well as adapt it to one of my single 80's.
That will only require a magnet to be added to the hub ( reversed polarity use).
I already have the engine mounted in a Chip Hyde Cap.
(Chip flew my Dalotel's back in the 80's - now I am flying one of his!)
Ain't life grand?
don't know yet - It is actually the standard ignition which comes on a new engine -
But- it uses a standard Hall switch pickup - and has a detachable high tension lead - designed to accept different leads which have other sized caps. the connector is much like a co- ax cable connector .
That is really a nice touch!
The specs call out 30 degrees auto advance .
Power connector is JR compatable.
The read out LED is on a long pigtail -for easy mounting.
It all looks to be easily adaptable to just about any engine.
Again -I have not done the hands on test.
I have no reason to doubt that it works - just waiting for the actual test.
The factory has not done any press release yet -that's why I have not given their name.
I thought it is a big step up over anything on the ignition market - and wanted to see if others felt the same.
I plan to useit on the new engine, as well as adapt it to one of my single 80's.
That will only require a magnet to be added to the hub ( reversed polarity use).
I already have the engine mounted in a Chip Hyde Cap.
(Chip flew my Dalotel's back in the 80's - now I am flying one of his!)
Ain't life grand?
#13
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From: Canton,
MI
Well this sounds interesting.
Hope someone has developed a GOOD and RELIABLE ignition system.
I have been having my share of problems with DA-50 ignition modules.
Out of the box, the module was bad.
They sent another ... the engine quit on takeoff once ... plane damage.
Could never get the needle valves set properly.
The engine quit half way through a flight at the bottom of a loop (plane damage) ... then became hard to start.
Sent the engine back to DA (4 gallons of gas used) ... they reported another bad ignition module.
Maybe DA will start using this new module if it shows promise. The one they use seems to have a fair share of problems.
If I have one more module go bad, I'll be looking for a replacement !
Hope someone has developed a GOOD and RELIABLE ignition system.
I have been having my share of problems with DA-50 ignition modules.
Out of the box, the module was bad.
They sent another ... the engine quit on takeoff once ... plane damage.
Could never get the needle valves set properly.
The engine quit half way through a flight at the bottom of a loop (plane damage) ... then became hard to start.
Sent the engine back to DA (4 gallons of gas used) ... they reported another bad ignition module.
Maybe DA will start using this new module if it shows promise. The one they use seems to have a fair share of problems.
If I have one more module go bad, I'll be looking for a replacement !




