Here is a little exercise I would like you to do. If you know how much torque your engine puts out and if you know your first gear ratio and you know your rear end ratio, multiplying these three numbers together should give your torque at the rear wheel.
i.e. 260 (torque expected from 261) x 2.52 (1st gear in TH350) x 4.11 Rear gear = 2693
What height rear tire do you run?
There has always been talk of that 2693 number or whatever but what is the best number or the average number.
Humour me. here you go and i doubt whether it will tickle your funny bone much after carl's numbers.
- 15" street tires or 15" m/t slicks used.
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-max trq @ 5200 rpm, 738 tq x 2.74 1st gear X 3.90 rear = 7886
Here is a little exercise I would like you to do. If you know how much torque your engine puts out and if you know your first gear ratio and you know your rear end ratio, multiplying these three numbers together should give your torque at the rear wheel.
i.e. 260 (torque expected from 261) x 2.52 (1st gear in TH350) x 4.11 Rear gear = 2693
What height rear tire do you run?
There has always been talk of that 2693 number or whatever but what is the best number or the average number.
Humour me.
Thanks
Warren
warren, what is the significance of this number other than a power to weight ratio, maybe ?
I really don't know other then I think it could have a bearing on launch. I've seen reference to this or similar equations over the years and maybe it is more significant in lower powered stockers, or modifieds. I was just hoping to see if the number changed radically over similar vehicles, but that probably gets too complicated to track. How would my little altered, for example, turning 14 seconds @ 100 MPH compare to a 55 Chev weighing a whole lot more but running the same? Maybe it was a futile question, but I just wanted to see where it went.
13,244, Holy S**t, that's the number I want for the Bantam.
I really don't know other then I think it could have a bearing on launch. I've seen reference to this or similar equations over the years and maybe it is more significant in lower powered stockers, or modifieds. I was just hoping to see if the number changed radically over similar vehicles, but that probably gets too complicated to track. How would my little altered, for example, turning 14 seconds @ 100 MPH compare to a 55 Chev weighing a whole lot more but running the same? Maybe it was a futile question, but I just wanted to see where it went.
13,244, Holy S**t, that's the number I want for the Bantam.
Thanks Warren
that 13,244 is quite a number for sure. my 7886 is on pump gas and a o/d tranny. i can't imagine 13 thou tq with the same drive line as mine on the streets. i'd like to feel that ride in the seat of my pants, dang.
