RE: Mods to '85 GM TPI ECM

[Mike Rolica <mrolica@meridian-mag.com>]

Cange to a 730 / map.. a 383 pulls way too much air for a MAF.. TO DO IT
SIMPLE AND COST EFFECTIVE go map..
Let me guess it goes lean?? 
Mike Rolica
Plant A,
Magnesium Products Division
Strathroy

(519)-245-4040  Ext. 265


	-----Original Message-----
	From:	Jim and Sharon Brady [SMTP:bradyiii@shore.intercom.net]
	Sent:	Thursday, June 22, 2000 9:30 PM
	To:	gmecm@diy-efi.org
	Subject:	Mods to '85 GM TPI ECM

	Hi, my name is Jim Brady and I just joined the list a few moments
ago.  My
	current project is my '87 Monte SS.  My Monte is equipped with the
GM
	TPI(Tuned Port Injection) system consists of an '85 computer(I
assume I have
	an '85 computer because it had a Bosch MAF burn-off box attached to
it) with
	'87 hardware.  My original motor was a 305 and the system worked
perfect.
	My new setup is a 383(stroked 350) with a T56 manual trans.  The
only
	changes I have made to the system since I upgraded from the 305 to
the 383
	is 24lb/hr injectors and a fuel pressure regulator.  Everything
works great
	except full throttle.  I understand full throttle switches the ECM
to open
	loop mode leaving the EPROM to feed the system pre-determined
values.  Aside
	from improving my full throttle condition I would like to monitor
the
	parameters of the running motor.  What do I need to approach this
project?
	I assume an EPROM burner, cable for the aldl connector and software.
What
	can I manipulate with the software?  How about the EPROM.  I am new
to this
	and would appreciate any help you can give on this matter.  Thanks.

	Jim Brady
	'87 Monte SS 383 TPI 6 speed

	
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