Dyno an Automatic?
#1
Dyno an Automatic?
Read article about dynos that says dyno testing, etc. should be done with the car in as close to 1:1 ratio as possible - would guess this is 4th or 5th gear on a 2011 - 2012 GT. Makes sense I guess...
Just wondering how this is done on an automatic?
Just wondering how this is done on an automatic?
#6
Depends on the car. Some can be altered in tuning, some have a stable manual mode, and some just need to be throttled carefully to avoid a downshift. I've usually done my pulls in 3rd to avoid a long, drawn out pull. I've compared pulls with different gears and the hp/tq doesn't vary enough to worry me. It's more about having the right amount of resistance...a higher hp car will want a higher gear or you rip through the pull too fast to get a decent reading (and also can get spin). Dyno manufacturers recommend 1:1 to maintain consistency from one shop to another.
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