Re: more details sbc in place of lt1

[garwillis@msn.com (Garfield Willis)]

On Tue, 25 Jul 2000 12:41:17 -0500, "Andrew K. Mattei"
<amattei@mindspring.com> wrote:

>Well, with a little electrical wizardry you could do a crank hub monitoring
>sensor to simulate the 8 (IIRC) pulses per rev of the lo-res Opti pulse, and
>then some sort of black box trickery to 'create' the high-res opti pulses
>based on those lo res pulses. Essentially what the Electromotive LT1 SDI
>(which is no longer available) did, right Roger? Perhaps 9 holes drilled in
>the crank hub - 8 at every 45 degrees, adding one at an odd spot so that
>it's "keyed", with a small magnet inside each hole, and a hall effect sensor
>mounted to the timing chain cover to detect them as they go by...

Yes, this sounds like a perfect application for a Phased-Lock Poop, err
I mean Loop (dang, when ARE those meds gonna kick in).

What zactly WAS the public rationale for the hi-res in that system
anyway? Did they really tout it's technical ability to speedily adapt to
adjust cyl-to-cyl timing changes? Or was it just an engineering or
management team gone mad?

Garpuzzled


----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo@lists.diy-efi.org