Re: ECM calibrations for upgraded Xfire

["Dominic Sorresso" <surrexi2@home.com>]

I have posted using plain text. Do you have a bin file of the one u used for
the 13.7 time?
Thanks,

Dominic
----- Original Message -----
From: Bruce Plecan
To: gmecm@diy-efi.org
Sent: Wednesday, August 09, 2000 9:49 PM
Subject: Re: ECM calibrations for upgraded Xfire


Turn off that awful script / coloring.
I've run a 13.7 with a cross fire.
Try reading tuning docs (at the FTP), and programming 101.
For a combo like that, you'll need to do your own chip, and just start with
a stock one or what ever ya bought from them.
Some major (yet non critical) intake porting needs done
Grumpy


----- Original Message -----
From: Dominic Sorresso
To: gmecm@diy-efi.org
Sent: Wednesday, August 09, 2000 10:30 PM
Subject: ECM calibrations for upgraded Xfire


Hi,

I am new to your forum but it was strongly suggested by a member of the
Xfire forum that I join.
I recently "upgraded" my 84 Vette Xfire with a Comp Cam hyd roller 211/218
degree with .488/495 lift at 112 degree lobe separation. I also upgraded the
heads to the new
Trick Flow 23 degree aluminum heads. Also have upgraded ECM and TBI units to
Turbo City
systems ie 7747 ECM. I also have Extrude Honed manifold. On a 95 degree day,
car ran a 14.3 at 99.7mph and pulled 253 hp@4600rpm/307 lbft@4200rpm at the
rear wheels on chassis dyno. This was with stock configuration chip. I am
interested in knowing if anyone has a bin file for a combination similar to
this. I don't doubt that knock Sensor was causing  retard of timing since
power went south after 4600rpm. I have a Needhams EMP-10 burner  and would
be interested in mainly suggested fuel and timing calibrations. I believe it
is running slightly rich especially at cold idle strartup and would also
like to address dis/engagement of 4+3 OD unit at higher speeds.

Thanks for your help,

Dominic
surrexi2@home.com

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