racer135

iTrader: (2)

I was doing some logging on EvoScan and tried to log the AirFlow. Reading starts OK but at 5500 RPMs the aiflow gets to 1593 Hz and it just stays there until redline. I am doing 22 PSI when that happens. Im I doing something wrong? Is there something that needs to be changed.

I am using EvoScan v2.1 because I have it setup for my ROM with all I need. The formula on EvoScan is 6.25*x

GST Motorsports

iTrader: (8)

You need to log 2byte airflow

racer135

iTrader: (2)

I just double check and I selected AirFlow instead of 2B Airflow when I made the log. That should fix it. Can't believe I choose the wrong one. Thanks. Will try again tonight.

racer135

iTrader: (2)

I did a 3rd Gear Pull tonight and got some #s for 2 Byte Airflow. Car is almost at 2000 Hz t Redline. Below is the plot.



Do the Airflow numbers look OK? I am trying to determine if the 20G is really working like it should. I have no data on the Stock Turbo.

racer135

iTrader: (2)

Has anyone log the 2 byte airflow? Does the above numbers look OK. Based on the airflow plot turbo seems to keep flowing at high RPMs.

tephra

iTrader: (6)

that looks spot on.

55500 rpm? wow, what sort of springs are u using? :P

l2r99gst

iTrader: (2)

He must have one of those Coates rotary heads made especially for an Evo...no springs, valves, cams, etc.

racer135

iTrader: (2)

Sorry. It's suppose to be 5500 obviously. I guess aftermaket cams will help the turbo flow more air.