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MotorsportsGordon
MotorsportsGordon HalfDork
3/15/19 10:58 p.m.
akylekoz said:
_ said:
Curtis said:

I'll echo the "why" part.  As long as it's not dropping torque during shifting, more gears is a really good way to keep things humming at the best part of the powerband.

There’s a reason top drag cars don’t have six speeds. Every shift is a loss of time. Two identical vehicles with A 3 or 4 spd versus a 10spd auto that shifts every gear in the 1/4 will walk the 10spd car. 

 totally don't agree with this, if you take a ten new speed transmission and put in it place of my T-5 

I totally disagree with this, if you take a ten new speed transmission and put in it place of my T-5 for instance.  I would still be pushing in the clutch and looking for third gear while the ten speed 1992 Mustang would be in the power the whole time and in fourth or fifth gear and way ahead of me.

I was amazed by my daughters Stelvio when I matted it that thing went through three gears in the time it would have taken me to get out of first and it was going a lot faster.  Not apples to apples however I have to believe it's true.

No time slip to back this up but I don't know of any super cars that are faster with a three or four speed.  

Why do drag cars have one or two speed autos?  For the reliability of the shock load of a launch and they evolved that way.  With a real loose converter you are mimicking a CVT, another common trans for its efficiency. 

Maybe I should have answered this in the Troll thread cuz I really don't know E36 M3.

Typically it’s because say with only one upshift it allows for a smoother run with only one upshift. However there are many cars with more. For example actually top alcohol funny cars and dragsters typically have a 3 speed transmission. Pro stock and pro mod cars typically use either or lenco or liberty gforce clutchless 5 speed transmission. Now top fuel doesn’t use a transmission but instead a multistage clutch.

MotorsportsGordon
MotorsportsGordon HalfDork
3/15/19 11:00 p.m.

And less gears eats up less horsepower 

_
_ Reader
3/16/19 10:06 a.m.

I think many here have missed the point of this thread. Oh well. It doesn’t matter. 

pilotbraden
pilotbraden UltraDork
3/16/19 8:58 p.m.

I will ask Fat Matt. He is one of the most drag racingest guys in Flint. He and his wife take her daily driver AMG turbocharged all wheel drive Mercedes-Benz to the strip regularly. He will probably know.

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