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Power to weight?

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Old 28-04-2007, 05:38 PM
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CraigJ
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Default Power to weight?

How do i work out power to weight for a car weighing 350kgs and has 140bhp?
Old 28-04-2007, 05:52 PM
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nilrem
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power to weight = power(bhp)/weight(Ton)

therefore 140/0.35 = 400 bhp per ton
Old 28-04-2007, 06:00 PM
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How much boost are you running?
Old 28-04-2007, 06:07 PM
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CraigJ
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Boost?
Old 28-04-2007, 06:24 PM
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Originally Posted by Topbombingkid
Boost?
That manly thing that comes out of a turbo.
Old 28-04-2007, 06:25 PM
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Charlie Chalk
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Nice power to weight


Originally Posted by StickerPaul
Originally Posted by Topbombingkid
Boost?
That manly thing that comes out of a turbo.
His car is N/A, like it says in his siggy
Old 28-04-2007, 06:27 PM
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Originally Posted by Charlie Chalk
Nice power to weight


Originally Posted by StickerPaul
Originally Posted by Topbombingkid
Boost?
That manly thing that comes out of a turbo.
His car is N/A, like it says in his siggy
Well his car isnt manly without boost
Old 28-04-2007, 06:28 PM
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Overboost
Old 28-04-2007, 06:31 PM
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so whats the general rule of thumb with this

the power in bhp divided by the weight e.g

300bhp / 1.0 (1000kg) = 300bhp per ton

so for a car with 300bhp and weighs 1500kg the formula would be

300/1.5 =?

thanks

carl
Old 28-04-2007, 06:34 PM
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Power / weight x 1000
Old 28-04-2007, 06:45 PM
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Originally Posted by YoungDan
Power / weight x 1000
where id the 1000 come from?
Old 28-04-2007, 06:51 PM
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Weight in KGs....
Old 28-04-2007, 06:53 PM
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oh right yeh... sorry... lol i did that before hand... lol
Old 28-04-2007, 06:54 PM
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Terry Tibbs
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1024 in a tonne my dear boy.
Old 28-04-2007, 06:56 PM
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Hmm


http://www.google.co.uk/search?hl=en...G=Search&meta=




Unless americans use a different messure?
Old 28-04-2007, 07:02 PM
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Originally Posted by StickerPaul
Originally Posted by Charlie Chalk
Nice power to weight


Originally Posted by StickerPaul
Originally Posted by Topbombingkid
Boost?
That manly thing that comes out of a turbo.
His car is N/A, like it says in his siggy
Well his car isnt manly without boost


Will be powered by a ZX10 engine that revs to over 10,000rpm who the hell needs a turbo lol. May fit Nos though for a bit of extra fun.
Old 28-04-2007, 07:49 PM
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Originally Posted by Topbombingkid
Originally Posted by StickerPaul
Originally Posted by Charlie Chalk
Nice power to weight


Originally Posted by StickerPaul
Originally Posted by Topbombingkid
Boost?
That manly thing that comes out of a turbo.
His car is N/A, like it says in his siggy
Well his car isnt manly without boost


Will be powered by a ZX10 engine that revs to over 10,000rpm who the hell needs a turbo lol. May fit Nos though for a bit of extra fun.
Ive been in a 350kg kit car with a fireblade engine and it was absolutely awesome!!!
Old 29-04-2007, 12:12 AM
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Originally Posted by Flip2k3
1024 in a tonne my dear boy.
thought 1 metric tonne is 1000Kg.

http://en.wikipedia.org/wiki/Tonne


and 1 imperial ton is 2,240 lb (exactly 1,016.0469088 kg).
Old 29-04-2007, 07:37 AM
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dont they teach maths in schools these days?
Old 29-04-2007, 08:56 AM
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did some caluclations on the track maestro few weeks back

I know the maestro weight but guessed on cossie and scooby

Maestro 790kg = BHP Per Tonne 278bhp

Cossie 1300kg ish @ 350bhp =Per tonne 269bhp

Scooby 1600kg ish @ 420 =Per tonne 262bhp

All good just stopping, cornering and everything else is the issue

Old 29-04-2007, 10:03 AM
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dont forget the weight of the driver!

my bike all in with me and tank of fuel is about 350bhp/ton

and that goes faily well lol
Old 29-04-2007, 10:14 AM
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i was gonna say what about the driver,,,, as thats gonna shite on your bhp per ton figures in the pub

450k i would guess with driver,, though dont know how big you are

either way a nice idea and a fun car
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