Predicting 1st qualifier ?

[Stock726]

Even warming it up on jackstands doesn't seem to work as well as making the first pass, from my experience anyway.

I think there maybe more factors involved besides oil and water temperature??

[michael mercer]

Put a temp gauge on the trans. Trans fluid temp will definately make a differance.
Get up on the converter in the staging lanes or get a magnetic pan heater.

[SmBlkFord]

So you guys think temp is doing it ? I warm it up good through the pits but never got on the transbrake. Try to keep the water temp around 160-180 when I go in. I can`t get it any closer then within 20 deg. if that would make that much of a difference ? Thanks

[Ed Wright]

You see cars driving down the return road to the end and back each morning at the races for a reason. I would not warm mine up on jack stands myself. I (and several others I encounter doing the same thing when I am) drive down the return road to the end, turn around, stop, set on the trans brake for ten seconds, and if the scales are open check my weight. The digital scales we have now don't vary much, but you never know. When I get back I plug in my cool down battery & charger until I get the engine back to ambient. Always runs the number first pass.

[countrypuppy4865]

Could possibly be spark plugs loaded up and maybe after making one pass it cleans them up?

[Ed Wright]

I would think you would hear it miss. If tuned correctly, your plugs will always stay clean.

[SmBlkFord]

I do drive up down the return roads but never got on the brake. I'm sure most of you have 3 jet settings for a season, but I just use the same logbook for a given track. Maybe it would be best to separate them by jet settings too? Thanks