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  #46  
Old 08-27-2003, 10:10 PM
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Re: Ferrite bead inductor.

Quote:
Originally posted by oab_au
The Ferrite bead is an inductor with a single turn winding.
It is used to slow the rise time of a signal to the computer. Removing it just allows a faster response to the signal. The size of it would suggest that its effect would be in the low micro sec range.

That said, I have no idea what signal it is or what the signal is used for.

Harvey.
Harvey a ferrite bead IS a ferrite bead and that IS the item being crushed. If one or several turns are taken through a ferrite bead the complete component, so formed, constitutes an inductor.

A ferrite bead can have a single wire through it without a turn and still perform a function. From all that has been in print here this would appear to be what is being described. Have you examined the item or can someone else describe its physical make up? If there is a turn through the bead this would be in danger of being broken as it must be of small cross section.

Your stated fact re " slows the rise time of an input signal " is an interesting conjecture to say the least, given the constant being discussed.

But whatever -- the CRUSHED component IS a ferrite bead. No more and no less.
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  #47  
Old 08-29-2003, 06:36 PM
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Re: Re: standard hesitation

Quote:
Originally posted by Chicane


This could explain my poor reaction times and 16.7 second 1/4 mile times at the drag strip. I've used a 'practice tree' before and usually get .5-.7 but at the strip the best I could get was a 1.3 or something pathetic like that, and it seems like the car was like "uhh... hmm... OH YEAH! GO!!!!!"

So should I crush this sucker AND install the shift kit??

- Rob


Yes. I,v heard you describe your cars attitued and I think you might have this problem. It work for me and I'm so fricken happy I could just kick my self for not doing it a long time ago.
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  #48  
Old 08-29-2003, 07:51 PM
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Might be doing that stuff this weekend then.

- Rob
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  #49  
Old 08-29-2003, 08:04 PM
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I will prob be getting it done Sunday. I will post what the results were as well. I hope it kills that hesitation
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  #50  
Old 08-30-2003, 06:09 PM
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Re: Re: Ferrite bead inductor.

Quote:
Originally posted by Trevor


Harvey a ferrite bead IS a ferrite bead and that IS the item being crushed. If one or several turns are taken through a ferrite bead the complete component, so formed, constitutes an inductor.

A ferrite bead can have a single wire through it without a turn and still perform a function. From all that has been in print here this would appear to be what is being described. Have you examined the item or can someone else describe its physical make up? If there is a turn through the bead this would be in danger of being broken as it must be of small cross section.

Your stated fact re " slows the rise time of an input signal " is an interesting conjecture to say the least, given the constant being discussed.

But whatever -- the CRUSHED component IS a ferrite bead. No more and no less.
' Ferrite Bead ' is a laymans term for a Toroidal inductor. Passing a wire through it constitutes a turn.
It is an Inductor.

Harvey.

edited with thanks to Trevor for pointing out my errors.
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Last edited by oab_au; 08-31-2003 at 06:54 PM.
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  #51  
Old 08-31-2003, 01:31 AM
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Re: Re: Re: Ferrite bead inductor.

Quote:
Originally posted by oab_au
Passing a wire through it constitutes a turn.
I don't quite see that. Sorry.

- Rob
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  #52  
Old 08-31-2003, 11:18 AM
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I am just about to do the MOD, I go into my draw, and Find that all my eletrical tape is gone!! LOL. Well I will be posting my results in a few hours
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  #53  
Old 08-31-2003, 03:16 PM
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Use masking tape, a medical plaster or whatever. The idea it would appear is to stop the debry falling into the works.

Please advise as exactly as you can the physical make up of the component.
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  #54  
Old 08-31-2003, 05:54 PM
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Re: Re: Re: Ferrite bead inductor.

Quote:
Originally posted by oab_au


' Ferrite Bead ' is a law mans term for a Toroidal inductor. Passing a wire through it constitutes a turn.
It is an Inductor.

Harvey.
Harvey you are wrong what ever your confusing use of English is meant to convey.

" law mans " ??? ( layman's ) ???

Even a bush lawyer would not make such a blatant error !!!! The application of precise and accurate text is the basis of his training and trade. Technical knowledge is not required in respect of the correct use of the noun in question. An inductor in an electrical sense is a device which introduces an inductance into an electrical circuit . A ferrite bead does not perform this function and is not an inductor.

It is surely ironic and significant that a prime application of a ferrite bead is to increase the inductance of an inductor i.e. the entirely separate item which is run through it and can often comprise a straight conductor. The entirely separate INDUCTOR passes THROUGH the bead. The exact reason the old fashioned term has been coined to describe it.

Ferrite cores ( and the animal discussed here could very well be one ) are often similar to a bead and it is not too inaccurate to mix the terms. These are used to reduce EMI ( electromagnetic interference ) induced or radiated by an INDUCTOR.

The core of a transformer is a core. A core integral with an inductor, i.e. a conductor wound on it, is a transformer.

A toroid is a toroid. A toroid with a winding on it becomes a TOROIDAL INDUCTOR, usually in the form of a transformer or choke.

By the same token a ferrite core is just that and no more and a ferrite bead IS A FERRITE BEAD and no more and certainly nothing else.

Your continued efforts to justify, rather than accept your errors, is a disservice to members wishing to learn from the technical information presented here and I will continue to remain vigilant in their defence.
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  #55  
Old 08-31-2003, 06:56 PM
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Re: Re: Re: Re: Ferrite bead inductor.

Quote:
Originally posted by Chicane


I don't quite see that. Sorry.

- Rob
Thats because your still on the Honeymoon.
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  #56  
Old 08-31-2003, 07:00 PM
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Re: Re: Re: Re: Ferrite bead inductor.

Quote:
Originally posted by Trevor


Harvey you are wrong what ever your confusing use of English is meant to convey.

" law mans " ??? ( layman's ) ???

Even a bush lawyer would not make such a blatant error !!!! The application of precise and accurate text is the basis of his training and trade. Technical knowledge is not required in respect of the correct use of the noun in question. An inductor in an electrical sense is a device which introduces an inductance into an electrical circuit . A ferrite bead does not perform this function and is not an inductor.

It is surely ironic and significant that a prime application of a ferrite bead is to increase the inductance of an inductor i.e. the entirely separate item which is run through it and can often comprise a straight conductor. The entirely separate INDUCTOR passes THROUGH the bead. The exact reason the old fashioned term has been coined to describe it.

Ferrite cores ( and the animal discussed here could very well be one ) are often similar to a bead and it is not too inaccurate to mix the terms. These are used to reduce EMI ( electromagnetic interference ) induced or radiated by an INDUCTOR.

The core of a transformer is a core. A core integral with an inductor, i.e. a conductor wound on it, is a transformer.

A toroid is a toroid. A toroid with a winding on it becomes a TOROIDAL INDUCTOR, usually in the form of a transformer or choke.

By the same token a ferrite core is just that and no more and a ferrite bead IS A FERRITE BEAD and no more and certainly nothing else.

Your continued efforts to justify, rather than accept your errors, is a disservice to members wishing to learn from the technical information presented here and I will continue to remain vigilant in their defence.
Gee I am glad that I have you to correct my English. Don't know what I would do with out you.

Harvey.
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  #57  
Old 08-31-2003, 07:16 PM
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Your sarcasm does not negate the fact that your statement of fact is wrong. This IS the essence of my post.

P.S. I now notice that you have promptly corrected your post and the " law man " as been obliterated by the " layman " . Honestly ! ?
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Last edited by Trevor; 09-01-2003 at 02:38 AM.
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  #58  
Old 08-31-2003, 09:12 PM
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Re: Re: Re: Re: Ferrite bead inductor.

Quote:
Originally posted by Chicane


I don't quite see that. Sorry.

- Rob
Rob you deserve the respect of a proper reply to your genuine query.

When a conductor is passed through an item which senses inductance the in and out ends do not have to be brought physically together to form to a turn as such. The effective portion of what would have been a true turn, had a second been made, through say a toroid or a ferrite bead, is in place and passes current. The turn or loop does not have to physically complete as long as one electrical path is present within and through the device.

Not an easy one to put into words. Your query shows that as usual you are thinking.

Regards, Trevor.
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  #59  
Old 08-31-2003, 09:52 PM
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Well I did is a while ago hhehe. but just finished taking car out The results, YEAHH!!! no Hesitation


Well thanks for all this info and the how to as well.

talk to you all later.
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  #60  
Old 08-31-2003, 10:06 PM
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im taking mine out now. what a pain in the ass. definitely not good for my back. took half an hour to get the nuts out. one of them fell in my eye. 'x_o
lets see how long it takes to actually get the ecu out.
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