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Main : Misc POWER OUTPUT Kw/Kg ENGINE MASS

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POWER OUTPUT Kw/Kg ENGINE MASS
POWER OUTPUT Kw/Kg ENGINE MASSPopular
SubmitterferalMore Photos from feral   Last Update2003/5/2 0:46    Tell a friendTell a friend
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The graph shows stock engine outputs in Kw/Kg of engine mass vs potential power outputs typically achieved from the same engine.

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Poster Thread
Quinn
Posted: 2004/3/30 14:37  Updated: 2004/3/30 14:37
Home away from home
Joined: 2002/10/7
From: Auckland N.Z
Posts: 824
 Re: POWER OUTPUT Kw/Kg ENGINE MASS
shouldnt the blue bar = original power and the purple = max power or am I reading this wrong?

Poster Thread
feral
Posted: 2005/1/14 11:05  Updated: 2005/1/14 11:05
Home away from home
Joined: 2002/5/1
From: Millgrove Vic OZ
Posts: 985
 Re: POWER OUTPUT Kw/Kg ENGINE MASS
Quinn,
You take the prize. I did put the code around the wrong way.

Poster Thread
1200GXman
Posted: 2005/1/14 12:51  Updated: 2005/1/14 12:51
No life (a.k.a. DattoMaster)
Joined: 2003/11/28
From: South Africa, Bloemfontein
Posts: 1469
 Re: POWER OUTPUT Kw/Kg ENGINE MASS
Great pic.

Look how close the A12 through to the FJ20DE powerbars are.

I just have a question.
If you put a A12 in a bodyshell and for example a FJ20DE in another bodyshell and both car's power to mass ratio is the same, will they perform from 0 to 100km/h the same ?

Poster Thread
ddgonzal
Posted: 2006/3/31 3:31  Updated: 2006/3/31 3:31
Moderator
Joined: 2001/5/3
From: 48 North
Posts: 31575
 Re: POWER OUTPUT Kw/Kg ENGINE MASS
Quote:
If you put a A12 in a bodyshell and for example a FJ20DE in another bodyshell and both car's power to mass ratio is the same, will they perform from 0 to 100km/h the same ?
Yes, more of less. The power/weight ratio will be the same, so the performance will be similar.

Now, if you look at it this way it makes some sense:
A 300 HP chrysler hemi (at 750 pounds)

vs.
A 300 HP CA18DET (at 282 pounds)


In this case, the CA-powered 1200 vehicle in total will be lighter, therefore faster. Lighter engine, lighter tranny, lighter rear axle. Granted, you could build up the Hemi to more than 300 HP ... but remember that original hemis were less than 300 HP net from the factory.

Poster Thread
sidedraught
Posted: 2006/3/31 5:06  Updated: 2006/3/31 5:06
No life (a.k.a. DattoMaster)
Joined: 2004/9/4
From: sydney
Posts: 3097
 Re: POWER OUTPUT Kw/Kg ENGINE MASS
Quote:
.. but remember that original hemis were less than 300 HP net from the factory.


DD I can only assume you are not talking about old King Kong ,the 426 Hemi which was rated at 425 HP straight out of the box.

Poster Thread
ddgonzal
Posted: 2006/3/31 20:44  Updated: 2006/3/31 20:44
Moderator
Joined: 2001/5/3
From: 48 North
Posts: 31575
 Re: POWER OUTPUT Kw/Kg ENGINE MASS
The 426 was 2nd-gen Hemi.
Ok, so 425 HP hemi vs 425 HP CA18DET. Guess which one will make a faster Datsun 1200? The car that weighs less will generally be the more quickly accelerating one.