RE: Changing 165 fuel delivery was "General tuning question - fue l economy"

["Marteney, Steven J." <smarteney@xlvision.com>]

Not sure what you mean here.  It is MAF, but I also think it is right.  With
the increased lift and duration of the cam, at a given rpm and throttle
angle the engine will be taking in more air than it would with the stock
cam.  To keep the AFR right, the injectors would have to deliver more fuel
and thus BLM goes up.  My point in trying to change the injector constant or
MAF tables or whatever would be to obtain the "holy grail" of tuning, the
128 BLMs and BLIs.

Also, haven't read the long email you sent previous.  This response may be
way off base since I haven't read it yet.  Sorry :-(

Steve

> -----Original Message-----
> From:	Mike Rolica [mailto:mrolica@meridian-mag.com]
> Sent:	Thursday, June 15, 2000 1:52 PM
> To:	'gmecm@diy-efi.org'
> Subject:	RE: Changing 165 fuel delivery was "General tuning question
> - fuel economy"
> 
> So if it is maf.. obiously the maf is not right.. or you injectors are not
> actually putting out what the constant is in the prom......
> Mike Rolica
> Plant A,
> Magnesium Products Division
> Strathroy
> 
> (519)-245-4040  Ext. 265
> 
> 
> 		-----Original Message-----
> 		From:	Marteney, Steven J. [SMTP:smarteney@xlvision.com]
> 		Sent:	Thursday, June 15, 2000 1:38 PM
> 		To:	gmecm@diy-efi.org
> 		Subject:	RE: Changing 165 fuel delivery was "General
> tuning question - fuel economy"
> 
> 		In other words, the block learns would come back to 128 (or
> wherever they
> 		settled.)  Isn't that the goal?  They are at 145-150 now and
> everyone says
> 		tune for 128.  That's only one way I've thought of doing it,
> but didn't know
> 		if it was considered cosher.
> 
> 		Steve (damn the excess overlap, I still want a blower!)
> 
> 		-----Original Message-----
> 		From: Rick Lindstedt [mailto:rick@mafb.org]
> 		Sent: Thursday, June 15, 2000 1:21 PM
> 		To: gmecm@diy-efi.org
> 		Subject: RE: Changing 165 fuel delivery was "General tuning
> question -
> 		fue l economy"
> 
> 
> 		Marteney, Steven J. wrote:
> 		>Congrats on a nice right up in GM High Tech Performance
> mag!  I enjoyed
> 		>reading it.  Hope it was you, guess it could have been
> another Rick
> 		Linstedt
> 		>that "tunes his own chips."
> 
> 		Yuppers..thats me... =) Thanks!
> 
> 		>On the injector flow rate, I had thought of telling it I
> had smaller
> 		>injectors than I really do.  Seems that would fire them
> longer, but I'm in
> 		>the dark.  Thought I would try it and see what happens.
> 
> 		Yea..it might work @ first but I would think the ECM would
> slow them down 
> 		to get the correct AFR after awhile of learning. ..maybe Im
> wrong here...
> 
> 		Rick
> 
> 		  
> 
> 	
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