Haltech E6K: Knock sensing...
08-14-02, 01:46 PM
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E6K: Knock sensing...
Well, by now anyone that knows anything about E6K's knows that it doesn't have knock detection/correction. The one trick that is out there involves some sort of circuit and the NOS input (which I still can't find details on).
I had an idea stirred into my head by someone using another type of system (and keep in mind, this is on a Subaru)... what if the knock sensor was hooked up through a normal input, and just datalogged? It'd be much better then nothing, without hacking any circuitry together. Plus it'd give you a direct idea where the knock occoured, without trusting your ears vs. your eyes reading the tach.
And a little OT, but has anyone found a way to export data from the .6km files to some sort of delimited text file? I have a few 550cc/3bar maps that I will need to convert to 440cc/2bar for my car.
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MY00 Subaru Impreza RS-T
I had an idea stirred into my head by someone using another type of system (and keep in mind, this is on a Subaru)... what if the knock sensor was hooked up through a normal input, and just datalogged? It'd be much better then nothing, without hacking any circuitry together. Plus it'd give you a direct idea where the knock occoured, without trusting your ears vs. your eyes reading the tach.
And a little OT, but has anyone found a way to export data from the .6km files to some sort of delimited text file? I have a few 550cc/3bar maps that I will need to convert to 440cc/2bar for my car.
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MY00 Subaru Impreza RS-T
08-21-02, 01:07 PM
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You can export the datalogs from your E6K into text files and them import them into excel. Some people have had problems from what I have seen doing this, but I do not recall what the fix is for it.
I am assuming you are talking about hooking upt he knock sensor into the Spare A/D input and datalogging that.
There is another option out there that I suggested a couple years ago. Someone on the Haltech Support list started working on one, but not sure if anything came of it. It involved a knock sensor and some electronics that converted that to an output that would adjust the timing using an input for the trim ****.
Did I help at all?
I am assuming you are talking about hooking upt he knock sensor into the Spare A/D input and datalogging that.
There is another option out there that I suggested a couple years ago. Someone on the Haltech Support list started working on one, but not sure if anything came of it. It involved a knock sensor and some electronics that converted that to an output that would adjust the timing using an input for the trim ****.
Did I help at all?
08-21-02, 01:27 PM
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You can export the datalogs from your E6K into text files and them import them into excel. Some people have had problems from what I have seen doing this, but I do not recall what the fix is for it.
I am assuming you are talking about hooking upt he knock sensor into the Spare A/D input and datalogging that.
I am assuming you are talking about hooking upt he knock sensor into the Spare A/D input and datalogging that.
There is another option out there that I suggested a couple years ago. Someone on the Haltech Support list started working on one, but not sure if anything came of it. It involved a knock sensor and some electronics that converted that to an output that would adjust the timing using an input for the trim ****.
Do people in the Rx7 community tune with something like a Knock Link (or MSD's knock detection box), or just by ear? From what I understand, the rotaries are very detonation-sensitive, so I think I have a little more room to work (with my piston engine) then you guys would.
08-22-02, 01:08 PM
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Most people tune with a wideband and keep ratios within reason <12:1. Although that is just mainly from what I see locally and online in the rotary community.
Everyone seems to have there own ideas, as long as they do not pop motors and make good power they are doing it right.
Jay
Everyone seems to have there own ideas, as long as they do not pop motors and make good power they are doing it right.
Jay
09-17-02, 10:47 AM
#5
Originally posted by gmonsen
hi, jay. i don;t think knock sensing works very well. certainly not as part of a separate system. when i first installed the haltech, i still had the j&s installed. it would retard the damned timing whenever it detected knock and meanwhile, the haltech was retarding it based, i think, on intake temps. it got screwy. i think the best thing to dpo relative to knock is just to tune it right with the wideband and perhaps install water injection.
anway, i'm looking for info on what, if anything the haltech does on its own to change timing, if anything? anybody know anything here? there's a correction map for inlet air temp correction and one for coolant temps.
the reason i'm asking this is that when i am dynoing and the amibient air temps are high (100+) and the intake air temp goes over 140, my timing seems to retard a good bit. anybody want to talk about this? thanks. gordon
hi, jay. i don;t think knock sensing works very well. certainly not as part of a separate system. when i first installed the haltech, i still had the j&s installed. it would retard the damned timing whenever it detected knock and meanwhile, the haltech was retarding it based, i think, on intake temps. it got screwy. i think the best thing to dpo relative to knock is just to tune it right with the wideband and perhaps install water injection.
anway, i'm looking for info on what, if anything the haltech does on its own to change timing, if anything? anybody know anything here? there's a correction map for inlet air temp correction and one for coolant temps.
the reason i'm asking this is that when i am dynoing and the amibient air temps are high (100+) and the intake air temp goes over 140, my timing seems to retard a good bit. anybody want to talk about this? thanks. gordon
Is it possible - To wire in the J&S on the OUTPUT side of the Haltech, between the Haltech and the MSD6AL so that the knock sensor will retard timing upon knock, without it having to go through the Haltech?
From the thread above, it seems that we can't use the J&S with the Haltech on the INPUT side because of the slow response.
Please provide any info you, (or the other Haltech knowledgable guys) may have on this.
Before I get flamed, - I already have the J&S, so I want to use it. It is not just a case of engine tuning 101, so I don't need to hear that "you don't need it" by everyone.
Thanks in advance.
