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power to weight ratio

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dirtwarrior17

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How do you calculate your power to weight ratio?

Do you take the weight and divide by the hp or the tq... or both added together?
 
weight divided by hp, that would be lbs per hp.

hp divided by weight, that would be hp per lbs. Forget which is used...
 
that would mean you would have 68,500 HP.... I screwed up, ntsqd is right, as usual...
 
sled_dog said:
that would mean you would have 68,500 HP....
Click to expand...


So I guess the answer is "YES"... :D



There's a lot more to performance than a power/weight ratio, but as a general measuring stick it can be somewhat relevant. Take a look at vehicles with in the 20lbs/HP range, then in the 15lbs/HP range....and on and on.

The "hot" cars might have a ratio in the low-teens.....crotch-rocket bikes are something like 3Lbs/Hp.

If you know your vehicles ratio you can get a REASONABLE idea of the performance by comparing it to other vehicles with similar ratios. The things that make direct comparisons tricky are: overall gear ratio, gear spacing in tranny, available traction, frontal area, etc.

I'd like a K5 in the 10Lbs/Hp range..... I think that would be a fun toy. A motor with around 500Hp would pretty much cover it. :usaflag:
 
Mine is 11.2lbs/hp. :saweet: Thats 475hp in my 5300 lb. :truck: I haven't gotten a chance to open her up yet...but I can't wait!!
 
I"m curious...I have a dodge ram with a cummins diesel...say i hopped it up to 500hp and 1000 ft/lbs...seems like hp/weight numbers would make it seem slow (weighs 7400 lbs)...but the tq makes it faster. like was said, there's a lot more than hp/weight, i guess.
 
15.76... not bad but still a long way to go.

by the end of next year it will be more around 13.00 when i get some darts and a good cam.
 
Anything that isn't 10lbs/hp or less isn't considered to be "performance". 20 is on the slow side. 15 is good.

20 is average for a pickup.
 
CyberSniper said:
Anything that isn't 10lbs/hp or less isn't considered to be "performance". 20 is on the slow side. 15 is good.

20 is average for a pickup.
Click to expand...

Tell that to civic owners...... :haha: :haha: :haha: :rotfl:
 
dirtwarrior17 said:
Tell that to civic owners...... :haha: :haha: :haha: :rotfl:
Click to expand...

They're usually happy if they can break the tires loose with the parking brake... or if they have a hint of torque steer. :haha:
 
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