[Gmecm] Crank & Cam signals on the 4200 GM six

[Bill Shaw]

What's the problem with exhaust cam phasing?  Does this engine use variable
cam timing like the Porsche Variocam to move the exhaust cam at a certain
RPM?  Is it electronically controlled?

Bill
'84 928s 5 sp. Vortech/749
'86 944 - http://bill.shaw.gotdns.com/red944/p-944fs.htm
(several other 1/2 motor p-cars, too!)

> From: jb <jonnbell at gmail.com>
> Reply-To: gmecm at diy-efi.org
> Date: Sun, 9 Apr 2006 22:27:02 -0500
> To: gmecm at diy-efi.org
> Subject: Re: [Gmecm] Crank & Cam signals on the 4200 GM six
> 
> weve discussed this a few times and im working on that engine myself,
> but the real problem is the exhaust cam phasing.  check out
> inliners.org for their message board discussion as well
> 
> On 4/7/06, Mike V <efi at dyakron.com> wrote:
>> Does anyone know what sort of signaling
>> the new GM 4200 six cylinder uses on crank & cam?
>> It would be great (read: inexpensive) if you could
>> adapt a 7730 or 7749 to these engines.
>> MV
>> 
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