[Gmecm] 1227730 ECM Compatable Knock Sensors

[Justin justin]

Thanks for the info Andrew.  Would I be better off using a knock sensor from a 350 then?  I'm just trying to find one that would be closest to a 472 and it looks like the 454 knock sensor would be the closest.  Someone also told me the only way you can get the 454 knock sensor to work with the 730 ecm is to run a 4k ohm resistor inline with it is this true?  If so what does this do?  Thanks - Justin
> ----- Original Message -----
> From: "Andrew G." <gmecm at 4usapride.com>
> To: gmecm at diy-efi.org
> Subject: Re: [Gmecm] 1227730 ECM Compatable Knock Sensors
> Date: Mon, 10 Jul 2006 22:26:39 -0400
> 
> 
> > From what I understand, the primary component of a knock signature is a
> function of bore size.
> I'd get a KS with the most similar bore size, for the '730 computer.
> 
> Also for the 730 the KS filtering is done on the memcal.  I'd pick 
> up the same memcal and use it as a starting point as well...
> 
> 
> ----- Original Message ----- From: "Justin justin" <justin_email at lycos.com>
> To: <gmecm at diy-efi.org>
> Sent: Monday, July 10, 2006 1:06 PM
> Subject: [Gmecm] 1227730 ECM Compatable Knock Sensors
> 
> 
>   I am doing an EFI conversion on my Cadillac 472 using the 1227730 
> ECM and need a knock sensor that would be closest in cubes to work 
> with my motor.  I was thinking of using one from a 454 but I have 
> heard that they will not work with the 1227730 is this true?  Does 
> anyone know of any knock sensors from a chevy 454 app will work 
> with a 1227730 ecm?  Thanks - Justin
> 
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