[Gmecm] 749 Shift light output

[Mike V]

Hi Bill.
If that doesn't work out, let me tempt you with an
RPM activated switch. The basic
MSD 8950 is the simpler of their offerings.
All appear to be under $100us.
Here is the PDF manual for it.
http://www.msdignition.com/pdf/FRM23778-PN%208950.pdf

Here's the jegs page listing it.
http://www.jegs.com/webapp/wcs/stores/servlet/product2_10001_10002_747866_-1
Thanks for the web pages of your adventures.
MV

----- Original Message ----- 
From: "Bill Shaw" <b.shaw at comcast.net>
To: <gmecm at diy-efi.org>
Sent: Monday, February 26, 2007 6:28 PM
Subject: [Gmecm] 749 Shift light output


> I've just obtained a 32 valve 5.0L engine for my 928.  This should give me 
> about 90 hp more than my 16V 4.7L before I add the forced induction.  One 
> issue I have to address with the 32V is the flappy valve in the intake. 
> This is an intake resonance device that is normally triggered to open at 
> about 4000 rpm by the Bosch LH ecu.
>
> I'm thinking about controlling it with the shift light output on my '749, 
> but it needs to be modified a bit so that it triggers just on RPM,  not 
> engine load or anything else.  Has anyone modified the shift light output 
> on a '749 to be just an RPM trigger?
>
> TIA,
>
> Bill
> 928s 4.7L 5 sp. Vortech/749 (soon to be 5.0L 32V!)
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