DD Stall
Chris
You stated it's a daily driver, but you didn't state any other intentions, dragstrip, roadracing ?
A stall is nothing more than slippage vs. resistance. For example a 3000 stall with 3.23s' and changing the gears to 2.73s',that 3000 stall would feel like a 3500 stall,changing the gears to 3.73s',that 3000 stall would feel like a 2500 stall.
When I changed my stall from OEM 1800 to TCI 2800(OEM 3.23s'),it felt 'loose' but didn't take long to get used to. When I changed my OEM 3.23s' to 4.56s' that 2800 stall felt/feels as tight as the OEM 1800. Planning on putting in a Yank SS 3600 this weekend.
Since you're running 4.10s' ( good to see 4.10s' in a A4), don't waste your time & money on anything below 3000. A CircleD or Yank in the 3200 range would be a minimum.
the consensus rule of thumb for a convertor,"whatever size you think is best for you,go more"
wanting a 2800 means you'll regret not getting a 3200,or a 3500,or 3600.
go get/take some rides in variously stalled cars.
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Your freeway mpg is about 22 with the 4.10s', and a 'lockup' stall will have NO effect on that.
My freeway mpg is 21.5 with the 4.56s',and even took 4 trips from Cleveland Ohio to Florida with the 4.56s'.
MPG is RIGHT FOOT DEPENDENT.
Your freeway mpg is about 22 with the 4.10s', and a 'lockup' stall will have NO effect on that.
My freeway mpg is 21.5 with the 4.56s',and even took 4 trips from Cleveland Ohio to Florida with the 4.56s'.
MPG is RIGHT FOOT DEPENDENT.
Theoretically,based on ratio change,it should have been 18 mpg. The higher numerical gearing gives the engine a better mechanical advantage over the vehicle which in turn means less engine loading. As engine load changes so does the air/fuel ratio. Wide open throttle put the highest load on the engine and the computor richens it up. Freeway cruise-control with 4.56s' has a very low load on the engine and the computor causes a leaner condition,but still within factory parameters.
One of the most useful additions to my 98Z was a ScanGaugeII which shows true RPM,true MPH,intake temp,true water temp,MPG,engine load,throttle position,manifold pressure,to name some.










