Power to weight
#1
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Power to weight
Was just looking at some power to weight figures for various Imprezas, which surprised me slightly.
The RB320 is around 207bhp per tonne, whilst the older WR1 is around 220bhp per tonne. Does that mean the WR1 will be quicker than the RB320?
Also, my spec D is around 205bhp per tonne running 360/390, so my car must be quite a bit heavier than both. Did they make the RB320 lighter? I thought it was just a PPP with frills?
On a different note - The FQ360 running the same power as my car has a quoted 260bhp per tonne, which is very impressive. Strangely though I have out accelerated an FQ360 before in my car, but surely it should be much quicker with that power to weight?
The RB320 is around 207bhp per tonne, whilst the older WR1 is around 220bhp per tonne. Does that mean the WR1 will be quicker than the RB320?
Also, my spec D is around 205bhp per tonne running 360/390, so my car must be quite a bit heavier than both. Did they make the RB320 lighter? I thought it was just a PPP with frills?
On a different note - The FQ360 running the same power as my car has a quoted 260bhp per tonne, which is very impressive. Strangely though I have out accelerated an FQ360 before in my car, but surely it should be much quicker with that power to weight?
#6
Was just looking at some power to weight figures for various Imprezas, which surprised me slightly.
The RB320 is around 207bhp per tonne, whilst the older WR1 is around 220bhp per tonne. Does that mean the WR1 will be quicker than the RB320?
Also, my spec D is around 205bhp per tonne running 360/390, so my car must be quite a bit heavier than both. Did they make the RB320 lighter? I thought it was just a PPP with frills?
On a different note - The FQ360 running the same power as my car has a quoted 260bhp per tonne, which is very impressive. Strangely though I have out accelerated an FQ360 before in my car, but surely it should be much quicker with that power to weight?
The RB320 is around 207bhp per tonne, whilst the older WR1 is around 220bhp per tonne. Does that mean the WR1 will be quicker than the RB320?
Also, my spec D is around 205bhp per tonne running 360/390, so my car must be quite a bit heavier than both. Did they make the RB320 lighter? I thought it was just a PPP with frills?
On a different note - The FQ360 running the same power as my car has a quoted 260bhp per tonne, which is very impressive. Strangely though I have out accelerated an FQ360 before in my car, but surely it should be much quicker with that power to weight?
#7
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LOL I've probably ballsed it up then!
I was looking at the graph I got from Andy F. Its says:
360BHP@5593rpm 389LbFt@4101rpm 205BHP/ton
Edit: Spec D weight is 1495kg
I was looking at the graph I got from Andy F. Its says:
360BHP@5593rpm 389LbFt@4101rpm 205BHP/ton
Edit: Spec D weight is 1495kg
Last edited by Mikkel; 06 July 2008 at 11:57 AM.
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#9
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try using this calculaotr for your car! I think yours comes out around 260bhp per tonne
Car Stats - Calculator
Car Stats - Calculator
I'm only 12 stone myself and I guess Andy F is not much more, so not weighing the car down that much when he took the readings
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Yes: a tank of fuel and a fat driver make a big difference (15 kilos for being fat in my case and the fuel weight can add another 35 kilos too).
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Just over 240bhp/tonne. Divide by 3, times by 2. Yeah! I can still do maths.
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