No Subject

Bob Tom tigers at bserv.com
Thu Mar 16 20:26:21 GMT 2000


Hi, all.

I have picked up a custom programmed PCM for my Dakota (normally
aspirated).  I'm fairly new to the EFI learning curve and have, to date,
what might be described as 'surface knowledge'.  I'm turning to
the experts, and am requesting for all/any opinions.

Below are listed the custom programming features which originally
ran on a super-charged Ram ST.  The company which did the programming
had put it on a computer meant for the Dakota at first.

    Top speed limiter is 199 mph
  * all delays are removed-instant throttle response
    raised idle to 900 rpm (full charge for underdrive pulleys)
    raised rev limiter to 6500
    raised shift points to 5600 rpm
  * calibrated for larger injectors (24-30 lbs will work) will work
      with stock injectors (19 lbs) perfectly also
    leaned out at idle( emissions legal on even the most wild setups)  
  * will work on supercharged engines up to 10 lbs or nitrous up to 150hp
      with no detonation
    calibrated for higher lift cams but will work with stock perfectly
    also calibrated for larger throttle bodies including the 4 barrel !!!
  * calibrated for 160 degree thermostat

The general question that I have is "is it possible to program in one
PCM timing and fuel maps to cover such a broad range of performance
mods".

I especially welcome comments for those items with the * beside them.
Any ideas what kind of delays are being referred to?
Is it possible to calibrate for so many different sized injectors
  all at once?
Does the item on SC and N2O suggests that timing is being retarded?
Does calibrating for a 160 tstat involve more than not triggering a MIL?

I've been holding back on installing the computer, injectors and tstat
as I'm getting a SPX OTC diagnostic scanner to see what's going on.

Any comments much appreciated.  Thanks.

Bob.       Southern Ontario, Canada.
97 Dakota CC Sport,5.2L,3.55SG, auto.,4x2: best 14.917s, 90.78mph
85 Shelby Intercooled Turbo Charger,2.2L,5-spd man.
78 B100 Dodge van, '69 340-4bbl
70 Challenger,383-4bbl,slap-stik auto.,3.23SG,hemi orange,46,700 orig.mi.
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