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YelloRolla Forums Junkie Location: On your mum! Registered: May 2002	Re: Torque & Horsepower & Acceleration Thu, 15 July 2004 14:06 Ed's answer is good. Skip's answer is technically correct. YelloRolla's answer is something like this. Torque is the force required to turn something (crank, gears wheels etc) - horespower is derived from the torque at a specific RPM. So following the formula Torque x RPM/5251 = HP. A motor that makes lot's of torque at low RPM (IE Cummins diesel with 420HP at 2600rpm) is also making a shitload of power at the same RPM. Transposing that formula we can work out that it is making about 850ft/lbs of torque (at 2600RPM and it would have made more at a lower RPM). A 1600cc 4A GTE making the same 420HP @ 8500rpm will need 260ft/lbs (at 8500RPM). HP refers to rate of work and trying to separate it from torque in the context of engine output is just not possible (Like trying to talk about the speed of a vehicle and then trying to separate the kilometers from the hours - it is futile). [Report message to a moderator]

	Subject	Poster	Date
	Torque & Horsepower & Acceleration	river	Thu, 15 July 2004 07:46
	Re: Torque & Horsepower & Acceleration	V8_MA61	Thu, 15 July 2004 07:50
	Re: Torque & Horsepower & Acceleration	Fro-Daddy	Thu, 15 July 2004 08:13
	Re: Torque & Horsepower & Acceleration	river	Thu, 15 July 2004 08:18
	Re: Torque & Horsepower & Acceleration	Skip	Thu, 15 July 2004 08:57
	Re: Torque & Horsepower & Acceleration	ed_ma61	Thu, 15 July 2004 09:05
	Re: Torque & Horsepower & Acceleration	Cyber-punk	Thu, 15 July 2004 09:12
	Re: Torque & Horsepower & Acceleration	dimmy77_03	Thu, 15 July 2004 13:30
	Re: Torque & Horsepower & Acceleration	ed_ma61	Thu, 15 July 2004 09:15
	Re: Torque & Horsepower & Acceleration	st184 sillycar	Thu, 15 July 2004 11:17
	Re: Torque & Horsepower & Acceleration	YelloRolla	Thu, 15 July 2004 14:06
	Re: Torque & Horsepower & Acceleration	Shraka	Thu, 15 July 2004 14:42
	Re: Torque & Horsepower & Acceleration	Skip	Thu, 15 July 2004 23:30
	Re: Torque & Horsepower & Acceleration	MS-75	Fri, 16 July 2004 03:58
	Re: Torque & Horsepower & Acceleration	lumpy	Fri, 16 July 2004 04:13
	Re: Torque & Horsepower & Acceleration	Skip	Fri, 16 July 2004 04:49
	Re: Torque & Horsepower & Acceleration	wil8115	Fri, 16 July 2004 08:10
	Re: Torque & Horsepower & Acceleration	mick	Fri, 16 July 2004 08:57
	Re: Torque & Horsepower & Acceleration	Skip	Fri, 16 July 2004 08:41
	Re: Torque & Horsepower & Acceleration	mick	Fri, 16 July 2004 08:53
	Re: Torque & Horsepower & Acceleration	wil8115	Fri, 16 July 2004 09:15
	Re: Torque & Horsepower & Acceleration	st184 sillycar	Sat, 17 July 2004 05:24

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