View Single Post
Old 01-06-2023, 12:26 PM   #1
Heads-up
 
Drives: 2010 2SS
Join Date: Sep 2021
Location: Bozeman Montana
Posts: 38
Higher stall speed and reaction time

If you installed a higher stall converter did you see a change in RT? If a higher stall lowers the 60' by .3 seconds, it should clear the first 16" or so from the stage beam to the guard beam somewhat. I'm trying to figure out how much R/T would be effected and at what stall rpm. My 60's are usually 2.04 with a 13.3 ET at 105ish at 6500 DA.

I raced my 2010 SS last year in 12 races at the local strip. If I leave on the last amber bulb I consistently get .10 to .14 reaction times. The car leaves pretty slow. On my practice tree my human R/T is about .15 - .2 so the car is taking .4 to .5 seconds to go from the stage beam to pass the guard beam. The stock converter will only stall up to around 1300 rpm. I assume this is due to the lower gears (less load = lower stall) and the fact that I'm down some hp due top DA in the 5 to 6000 range.

The car is street/strip build. I cant lower the weight or change tire diameter on the front wheels to lower my R/T. I could stage deeper but my local track tends to discourage deep staging by starting the tree as soon as both cars have lit the stage lights. If I try to bump deeper i sometimes miss the light. That leaves launch RPM as the only way to influence R/T. There's another 5th gen Camaro at the track and we have similar problems. We have to leave after the second amber and before the third to lower R/T, and this isnt consistent enough to win when bracket racing.

The car has CAI, Headers, 3.73 rear gears, BMR drag pack (double adjustable rear shocks, Lower control arms, trailing arms, larger sway bar, and poly bushings on all the suspension pieces, cradle, and differential.) and 17 inch wheels with MT Street SS drag radials.
Heads-up is offline   Reply With Quote