Tuning off Knock Sensor and EGT's how is this done?
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From: Holley 4053, carb 406 stroker anal Luber, Fag
Tuning off Knock Sensor and EGT's how is this done?
Anyone have any information on how to tune off a knock sensor and EGT's? Im building my little setup, but not really sure how I'm going to tune with it. I've heard different stories but it'd be nice to have some concrete info. Thanks 
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From: Holley 4053, carb 406 stroker anal Luber, Fag
Re: Tuning off Knock Sensor and EGT's how is this done? (V8MeatHead)
I still don't know how I'm going to mount this crap. On d-series is there already a spot threaded on the block for a knock sensor? If anyone has drilled and tapped their own what location did you use? I know you want to stay away from other engine noise like valvetrain.
Anyone tune with a knock sensor? It seems to be a PITA, how do you do it?
Modified by V8MeatHead at 3:27 PM 1/17/2006
Anyone tune with a knock sensor? It seems to be a PITA, how do you do it?
Modified by V8MeatHead at 3:27 PM 1/17/2006
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From: Melbourne, Victoria, Australia
Re: Tuning off Knock Sensor and EGT's how is this done? (V8MeatHead)
The answer to how you it this way is you don't.
Firstly, EGT's are very misleading as a pure tuning device. The main reason for this is that they are very dependent on ignition timing. In other words, a lean mixture will raise EGT's but so will a couple of degrees of ignition retard. Tuning by EGT was invented by the two stroke crowd for the simple reason that a lambda sensor doesn't last long in a burnt oil environment.
Secondly, tuning by knock sensor is unnecessary and potentially fatal engine. Your first problem is that normal engine noise is quite often mistaken for knock. The next is that once you've detected knock, it's already too late and you're way past the point of max torque.
The best way is to find yourself a decent wideband lambda setup and a good dyno that can tune in steady state.
Firstly, EGT's are very misleading as a pure tuning device. The main reason for this is that they are very dependent on ignition timing. In other words, a lean mixture will raise EGT's but so will a couple of degrees of ignition retard. Tuning by EGT was invented by the two stroke crowd for the simple reason that a lambda sensor doesn't last long in a burnt oil environment.
Secondly, tuning by knock sensor is unnecessary and potentially fatal engine. Your first problem is that normal engine noise is quite often mistaken for knock. The next is that once you've detected knock, it's already too late and you're way past the point of max torque.
The best way is to find yourself a decent wideband lambda setup and a good dyno that can tune in steady state.
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Re: Tuning off Knock Sensor and EGT's how is this done? (EFIOZ)
I agree completely, if you're going to use an EGT, you damn well better use a good wideband with it. Might as well toss in some in-cylinder pressure transducers as well.. 
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Re: Tuning off Knock Sensor and EGT's how is this done? (EFIOZ)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">Tuning by EGT was invented by the two stroke crowd for the simple reason that a lambda sensor doesn't last long in a burnt oil environment.</TD></TR></TABLE>
Tuning by EGT is done on airplanes, those are not two strokers. Just FYI.
Tuning by EGT is done on airplanes, those are not two strokers. Just FYI.
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From: Holley 4053, carb 406 stroker anal Luber, Fag
Re: Tuning off Knock Sensor and EGT's how is this done? (EFIOZ)
Thanks for the good info.
I've got a wideband set up already and just needed something to tune ignition timing, without going on a dyno. I suppose there's really no good way around it, but I'll ask anyway. What's the best way to tune ignition timing without going on a dyno then?
I've got a wideband set up already and just needed something to tune ignition timing, without going on a dyno. I suppose there's really no good way around it, but I'll ask anyway. What's the best way to tune ignition timing without going on a dyno then?
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