ESE's works engine tuner

[TZ350]

So the method of calibrating on the dyno with tiny timing changes till the power just drops off would seem doable.

Running blind through rush hour traffic is doable too, but I don't like your chances but on the other hand I like your independent spirit ....... go for it I say.

Hopefully I will get a chance tonight to see how well the Det Ear idea works and if I can hear anything worthwhile with it, will let you know.

[F5 Dave]

But you'll run it up on the dyno & that should tell you if the earpiece is telling you any more or if the curve changes are sufficient. Would be interested as I'll be doing the same soon.

[diesel pig]

There are commercial det ear makers who have videos on youtube with recordings of actual deto. It may be useful.

[TZ350]

But you'll run it up on the dyno & that should tell you if the earpiece is telling you any more or if the curve changes are sufficient. Would be interested as I'll be doing the same soon.

Kel and Giggles came around and we ran the beast up on the dyno, and I could hear a lot of mechanical noise with the Det Ear, but deto???????

With only one green light showing, the Knock sensor only spasmodically flashed orange during a pull and with the sensitivity wound up a bit so two green lights were on when the bike was running it would flash orange and then red during a pull and red on the over run but I never heard any det sounds in the headphones.

So was the Knock sensor seeing detonation and I couldn't tell what it sounded like over the engine noise or could the pickup on the head be tuned for the wrong cylinder diameter and was sending false signals to the Knock sensor.

I was sure I was going to hear detonation if it was happening, now I am none the wiser.

There are commercial det ear makers who have videos on youtube with recordings of actual deto. It may be useful.

Thanks I will have a look at them.

[kel]

with the sensitivity wound up a bit so two green lights were on when the bike was running it would flash orange and then red during a pull and red on the over run

Yep had it lit up like a christmas tree on over run, but you failed to mention the other area we were working on. Hope Im not getting ahead of myself but the throttle on after closed delay is well and truely gone (when running on the dyno anyways)

[husaberg]

Kel and Giggles came around and we ran the beast up on the dyno, and I could hear a lot of mechanical noise with the Det Ear, but deto???????

With only one green light showing, the Knock sensor only spasmodically flashed orange during a pull and with the sensitivity wound up a bit so two green lights were on when the bike was running it would flash orange and then red during a pull and red on the over run but I never heard any det sounds in the headphones.

So was the Knock sensor seeing detonation and I couldn't tell what it sounded like over the engine noise or could the pickup on the head be tuned for the wrong cylinder diameter and was sending false signals to the Knock sensor.

I was sure I was going to hear detonation if it was happening, now I am none the wiser.



Thanks I will have a look at them.

on the Autospeed page it had to from memory to listen to a car engine it went through a procedure.
But there is a quote which i can't quite remember that went something like
Sometimes for the good of many. some individuals must be sacrificed............
Maybe a TF125............
The only limits on scientific progress are those imposed by society. Nikola Tesla

[TZ350]

the other area we were working on. Hope Im not getting ahead of myself but the throttle on after closed delay is well and truely gone (when running on the dyno anyways)

Yes it took a bit of work and I couldn't have done it without your patent help but the way it comes back on is truly frightening, I think we will have to refine (tame) it for the track. But if it leaps out of corners as fast as it picks up on the dyno its going to be a rocket ship.

[richban]

I was sure I was going to hear detonation if it was happening, now I am none the wiser.

When I was using Andrews phones you could hear it loud and clear just over idle when the slide gasket on my cheap carb gave up. Sounded like a man with a hammer bashing my engine apart. All that normal engine noise was totally drowned out. It was loaded on a dyno with a break at the time but really minimal load. Will soon be doing it agin so will keep you posted on how I go. New engine finished and sitting on the bench.

[Haufen]

Yes it took a bit of work and I couldn't have done it without your patent help but the way it comes back on is truly frightening, I think we will have to refine (tame) it for the track. But if it leaps out of corners as fast as it picks up on the dyno its going to be a rocket ship.

Now I am curious, what was the reason?

[TZ350]

When I was using Andrews phones you could hear it loud and clear just over idle when the slide gasket on my cheap carb gave up. Sounded like a man with a hammer bashing my engine apart. All that normal engine noise was totally drowned out.

Thats what I was expecting, to be able to clearly hear detonation when it happened but the Knock Sensor was lighting up like a Xmas tree and I could not hear anything with the Det Ear other than lots of engine noise so something must be missing from the equation.

Now I am curious, what was the reason?

Needed a longer shroud on the needle jet, a leaner pilot, richer slide (like Wob said) and a needle that was leaner in the parallel part, took a while and I am sure that at the track we will have to refine it some more yet.

And at idle there looks like there is a low part in the inlet tract where a puddle might be forming (like you said there could be). I will have to take the RV cover off and see what can be done about draining it into the RV cavity. I figure if it drains into the RV cavity the RV blade will churn it up and fling it back into the moving air stream in the inlet tract.

[F5 Dave]

So did you alter the timing and note the power falling off? Maybe it is set over sensitive & you aren't getting det yet.

[Kickaha]

Anyone know what this engine is?

[F5 Dave]

If that's the only clue(ie none you turkey), then no.

Try posting a pic or a description

[Kickaha]

If that's the only clue(ie none you turkey), then no.

Try posting a pic or a description

If I had a clue i wouldn't have needed to post it

edit: can't you see the pic?

[Yow Ling]

Anyone know what this engine is?

Is it a Doxford 58JS3 ?