Power to Weight Ratios of Cars

[zeemee]

Here are some figures just for fun.

Formula = HP/Weight

1.3 Corolla - 84/1275 = 0.065
1.0 Belta - 70/990 = 0.0707
1.3 Swift - 90/1050 = .0857
1.3 City - 100/1155 = 0.0865
1.6 altis - 120/1275 = .09411
1.5 City - 120/1155 = 0.1038
1.8 Altis - 138/1275 = 0.1082
1.8 Civic - 138/1267 = 0.1089
1.5H Vezel - 160/128 = 0.125

Gearbox plays a huge role in how efficiently the power is used.

All figures are taken from Pakwheels.

[saqibhassan95]

Power to weight ratios are calculated according to standard weight, according to which power is calculated/assigned
Like hp/ton or hp/100 kg , __ hp to __ tons etc
What you did is, you stated figures as hp/kg I had never seen power to weight ratio figure anywhere like this

[zeemee]

Sorry bro, I though you would be able to follow the general principle of Maths
If you see the formula it's Hp/kg. So If it says 0.1 it means 0.1 hp per KG.

Whether you've seen it anywhere or not , it gives you a simple comparison of different cars.
Just a fun stat of how much Hp is there to drag one KG.

And please before you add further to the topic please keep in mind, Information can be analyzed in different ways, however it seems fit.
If you want it per ton, you can multiply the figures by 1000. Best I'll do it for you.

Hp/ton

1.3 Corolla - 84/1.275 = 65
1.0 Belta - 70/.990 = 70.7
1.3 Swift - 90/1.050 = 85.7
1.3 City - 100/1.155 = 86.5
1.6 altis - 120/1.275 = 94.11
1.5 City - 120/1.155 = 103.8
1.8 Altis - 138/1.275 = 108.2
1.8 Civic - 138/1.267 = 108.9
1.5H Vezel - 160/1.28 = 125

Well Information is easier to read in ton. Thanks.

[hayatumer82]

as we can see corolla and belta are underpowered cars....specially the corolla...

[usman1texh]

Good work but the combined power figure for vezel given on pakwheels is wrong. It isn't 160 bhp, it is around 150 bhp. So that gives us approximately 117 bhp/ton

[pwuser157309010191]

First of all i would like to appreciate your state of art work.

Second i would like to mention that your Formula is not absolutely correct because its not that easy at all.

Your Formula = HP/Weight(Kg)

Hp also known as Horsepower which is an English Unit not an SI unit (International System of Units) ,so you cant just divide hp with Kg(kilogram) which is indeed a base SI Unit .Both are from totally different Unit Systems.

You have to convert Hp to KW or W(Watt) which is an SI Unit then divide it by Kg.
if you didn't perform Hp to KW conversion then the weight has to be taken in lb (pounds) because Hp and lb both are from same unit systems.

Correct Formula:
Formula (SI unit) = KW/Kg
Formula (English unit) = hp/lb

I hope you understood.
kindly do research and prove if i am wrong!
I welcome and appreciate my correction!

i have attached links for references:
1- https://en.wikipedia.org/wiki/Power-to-weight_ratio
2- https://en.wikipedia.org/wiki/International_System_of_Units

[zeemee]

You could be right man, I'm not aware if Kg goes with KW or hp, but we can have hp/lbs figures by multiplying it with 2.2
I was just amazed that why Toyota would use 1.3 engine with such a heavy body. The automatic gli is painfully slow.

[pwuser157309010191]

The lower Power to weight ratio have negative effect on the Mileage of the vehicle
The lower PWR gives the lower milage.

According to my observation Pakistan's Vehicle industry (The Big Three) has some sort of secrete agreement with the fuel industry. That's why they do so.

The fuel industry provides low quality fuel, so that the vehicles would require maintenance more often and in response vehicle industry produces low millage vehicles, so that the vehicles would require more fuel.

[joji_887]

Don't worry, simply multiply answers by 1000