My MAF Airflow rate with the mods listed below : 32.54 lb/min on a 60 degree day with 56% humidity, under hood inlet air averaging between 82-85 degrees at the MAF. Seeing 2.3 KR from 5700rpm to 6000rpm, with a slight blip of 4.0 from 5500-5700 initially. Any idea what my horsepower is based on that air flow number?
I’m thinking somewhere around 290 crank hp. I -sort of- logged the data in a screenshot from my dash command app I use on iPhone (all extended PID’s were purchased). The screenshot won’t make any sense unless you completely 100% understand the layout of the Dash Commander data grid. I plan to get it dynoed but was just curious how accurate maf air flow to hp conversions are. Still on the stock 3.8 supercharger pulley, also this of course is a Gen V supercharger. Car has 198k on the engine and transmission. Thanks in advance and the current setup of the car as well as the screenshot, are shown below :
2007 Pontiac Grand Prix GT Supercharged 4AT (Bolt Ons, Mildly Gutted, “First Draft” Edition)
Changes to the car :
4 Inch Inlet Intake Filter
Autolite XP104 Iridium (-not- the normal copper 104's) plugs gapped to 0.050
ZZP Alternator Power Cable
ZZP 180 Degree Thermostat
ZZP Polyurethane Dog Bone Bushings
ZZP Polyurethane Upper Motor Mounts
ZZP Aluminum Transmission Pan
3 Inch Collector BHR Stainless Steel/Titanium Wrapped Headers
3 Inch BHR Catless Downpipe
3 Inch Catback w/ Cherry Bomb Glasspacks
EGR Bypass
TransGo Shift Kit
93 Tuned by Daniel Smuts
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