Well I ran some numbers. Couldn't find game by game attendance for our history, but got season by season data on record and attendance. I ran two correlations: one year total attendance vs. record, and one year's record vs. next year's total attendance. Really not what I wanted but only data I have.
Although I wanted to see the effect of a win on a subsequent game's attendance, we can see if total record in a year correlates with that year's attendance and correlates with next year's total attendance. The results indicate that: 1) there seems to be no to very little correlation between attendance in any year and the team's record that year -0.16 (Speedbull, if that is what you meant, it looks like you are right), 2) same result between one year's record and the subsequent year's total attendance, 3) you can't do it this way, stupid. There are too many variables and too little data.
I'm surprised that within a year there seems to be little correlation between our record and attendance. That one, although counter-intuitive, is a pretty straightforward calculation. The other correlation is basically useless without per game data.
Data Source