PhoenixGTS
Enthusiast
1998 GTS: stock air box modified to have 3" outlets, 3" smooth tubes, 70mm throttle bodies; 1.7 rockers, stock long block, full Belanger exhaust with stock cats with inlets and outlets enlarged to 3". See after charts for comments.
Before using Mopar High Performance PCM with 5007 code:
Before horsepower over torque - the heat of successive runs is really degrading power:
Before horsepower over air/fuel mixture:
Baseline best run in red over after best run in blue, horsepower over torque:
After horsepower over air/fuel mixture:
You can see that the air/fuel mixture went from a messy 12:1 to a much more stable 13:1. Notice also how on the below after three runs that the degradation on the successive runs is much less after - about ten peak horsepower per run before and only about seven and a half peak total horsepower over all three runs after. This would appear to really be helpful for roadracing where you run a straight, back off then make another run at a straight.
Before using Mopar High Performance PCM with 5007 code:
Before horsepower over torque - the heat of successive runs is really degrading power:
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Before horsepower over air/fuel mixture:
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Baseline best run in red over after best run in blue, horsepower over torque:
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After horsepower over air/fuel mixture:
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You can see that the air/fuel mixture went from a messy 12:1 to a much more stable 13:1. Notice also how on the below after three runs that the degradation on the successive runs is much less after - about ten peak horsepower per run before and only about seven and a half peak total horsepower over all three runs after. This would appear to really be helpful for roadracing where you run a straight, back off then make another run at a straight.
You must be registered for see images
Last edited:
