I'm second guessing my data. Currently tuning fuel / VE Table. I collect the data on my own, as I have no assistant to watch the computer while I drive. Making it extremely hard to know if cells have stabilized.... I only use cells that have several hundred hits or more as a result.
I've been holding brakes and using throttle to hit as many cells in a column (RPM) as possible. Between balancing this and controlling the car on the highway, I wonder if I'm not introducing transients in my data. Keeping the throttle steady is really hard. Constantly question if I'm chasing my tail or not. I've done 8 data runs adjusting the VE table along the way for fuel, burnt through about 10 gallons of gas on this tune (this is my third time tuning fuel in last 2 years since my engine build).
I know a dyno would be ideal but how good can I get my tune w/o a dyno.
Also any tips on knowing when the data is reliable to adjust the VE table with?
Thanks!