When logging airflow (Hz) in Evoscan it rises like normal and then pegs at 1593.75 Hz all the way to the end of the pull. Any ideas on how to get it to read normally all the way through the pull? I'm guessing it has to be some sort of limit that I need to increase, but I'm not sure where to make this change.

 

What version of evoscan are you using?

EDIT:
step 1: search for "1593.75"
step 2: read...read some more? https://www.evolutionm.net/forums/5355426-post65.html

 

I'm using 2.5 and I have rescaled my MAF; that thread has all the useful pictures removed as well. Anyone had this issue and what was the resolution?

 

I got the 2-byte airflow reading correctly, regular airflow is still pegged. Oh well...

 

i have the same issue with my red. i was wondering if it really is a problem.

 

The real airflow is the 2-byte airflow. The 1-byte airflow is a clipped version of the 2-byte airflow and has nothing to do with fueling. Mellon would be the most likely person to have maxed out the stock MAF, and even at 650 whp, it doesn't appear that he's maxed it out yet.

 

I'll have to remember to log airflow when I push it up to 700+awhp again...I'll probably pick up some race gas this week and finish the race gas tune this weekend if I have time.

 

I logged 2-byte yesterday and on a pretty much maxed 50-trim the max airflow reading I saw was ~2325Hz. I was looking for this data in another thread regarding the FP Red to calculate lb/min: https://www.evolutionm.net/forums/ev...gs-wanted.html
If anyone has airflow logs I would be interested in the data.

 

this is mine @ 600awhp ish

 

I need more turbo

 

Do you mind posting that with time? You said you would when you had a chance.

 

I have no idea where that log is anymore what do you need time for anyway?

 

Its one way to calc HP and TQ.

 

I was playing dumb

 

My "thought" dyno says you'll be at roughly 347 to the wheels on a Butt dyno.

-E