Quote:
Originally Posted by kiysersosae
PWM?
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Won't mean much to you if you are using Steinbauer.
Pulse Wave Modulation is how JB4 monitors vacuum across turbo wastegate as a %age.
If boost is on target and PWM %age is low means turbo is working less to achieve desired boost level - good efficiency.
If boost is below target and PWM %age is high then it means burden on turbo is high and yet not achieving desired target - poor efficiency
Forge IC will lower IAT's and hi flo cat DP will lower EGT's.
Hi flo inlet should help recover any throttle response loss from Forge IC.
Look fwd to reading more about your findings.