BJYM and my modified BJYM is now online

Doug Bazarnic doug at ddelectronics.com
Mon Mar 15 09:14:44 GMT 1999


I've uploaded my BJYM code which is for a '95 Chevy 1/2 ton truck, 350
(5.7L), 4L60E, AC, 3.73 rear gears.

My modified code contains mods for the following "enhancements".

Replaced stock block with a 4 bolt splayed cap block
Cola Crank
Eagle Rods
Ross Racing Pistons with 11.4:1 cr
Total Seal Rings
AirFlow Research  195 Heads w/2.05 and 1.88 valves
Comp Cams Hydraulic Roller camshaft  - .512 I  &  .532 E lift, 220 & 224 @
.050, 114 lobe sep
B&M Power Charger 144 Super Charger making 9 lbs boost at the manifold
Holley 610 cfm throttle body
Fluid Dampr
Doug Thorley Headders
3" Exhaust
And a 4L60E that's on it's 3rd clutch set, 2nd Torque converter, and 2nd
Input shaft and housing assembly in 42,800 miles.
And to give you a better idea how I drive this thing, it's on its 3rd set
of tires too. :)

My modified chip has a 900 rpm idle, 6000 rpm shift points (or
thereabouts), and quite a bit of timing.  The fuel is whacky, as the B&M
kit increases fuel pressure with boost, and the Map sensor rides in the
90-100% range 95% of the time.  

Things that I don't like about my chip:

1. Error code 32:  EGR..... I don't have an EGR anymore, yet the SES light
comes on daily to remind me that it still isn't there.

2. The over rich fuel condition on upshifting under full throttle.
Problem comes from the high boost/fuel pressure, and I don't think it can
be solved via ecm.

3.  A choke setting that's too rich on startup.   

Enjoy!





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