Power 2 weight ratio calculations
Power 2 weight ratio calculations
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Discussion

iguana

Original Poster:

7,333 posts

288 months

Saturday 8th March 2003
quotequote all
Right, this question will no doubt make it glaringly obvious how dim I am with figures, but I just can't get my head round the EVO power 2 weight figures.

Coz when ever I try & work out how they have got ‘em- I get it totally wrong & I think its the ton/tonne bit that is messing me up.

Ok as an example new M3 338bhp 1570kg EVO P2W fig= 219 bhp/ton

But if I do 338bhp divided by 1570 kg I get 0.215 so times that by 1000 I get 215.

So as that figure is not a million miles away I guess the tonne (1000kg?) is slightly heavier than a ton?? and I have bhp/tonne not bhp/ton???

So what calculations do EVO use? & assuming they use the non metric ton why do they do that if all vehicle weights now are in kg?. Or have I just messed up my maths somewhere along the line?

neilus

907 posts

310 months

Saturday 8th March 2003
quotequote all
It's because 1 ton (UK) is 2240 lbs, which is 1016.05kg.

1 tonne is 1000kg (2204.6lbs).

So your assumption about 1 tonne and 1 ton being different is correct.

Incidently, 1 ton (US) is 2000lbs, which is 907.185kg.

Neil.

planetdave

9,922 posts

281 months

Saturday 8th March 2003
quotequote all
close enough for rock&roll or evo.Remember J.Barker is spending 30k on a capri so insanity probably rampant at evo towers. Good mag tho.
Neilus's figure comes out @ 218.7

>> Edited by planetdave on Saturday 8th March 17:22

>> Edited by planetdave on Saturday 8th March 17:22

ultimapaul

3,949 posts

292 months

Saturday 8th March 2003
quotequote all

neilus said: It's because 1 ton (UK) is 2240 lbs, which is 1016.05kg.

1 tonne is 1000kg (2204.6lbs).

So your assumption about 1 tonne and 1 ton being different is correct.

Incidently, 1 ton (US) is 2000lbs, which is 907.185kg.

Neil.




Your probably right. But could it be that the makers quote a cars weight dry and the mags use a curb weight to do the calc?

alan_driver

1,281 posts

285 months

Saturday 8th March 2003
quotequote all
That reminds me, when is the EVO mag out? i reserved the last issue at the newsagents but they sent it back cos i didnt collect it,
cheers
alan

ultimapaul

3,949 posts

292 months

Saturday 8th March 2003
quotequote all
Got mine Thursday ..... Postie scarred the sh!t out of me.

rpguk

4,515 posts

312 months

Saturday 8th March 2003
quotequote all
I love the way they send it out in porno mag style wrapping