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Shraka Forums Junkie Location: Melbourne Registered: November 2003	Re: Torque & Horsepower & Acceleration Thu, 15 July 2004 14:42 As has been stated, torque * RPM = Power. Torque at the wheels can be changed by different gear ratios. Power at the wheels cannot be changed by different gear ratios. So technically, you want as much power as you can get, and just fit the right gears and diff to it to make up for torque. Generally, when talking about drag races, V8s big strokers do a pretty good job 'cuz they hit torque very low in the rev range so it's easy to launch them. Though once it hits it's Torque peak, the torque curve drops off. This means that even though the power is going up through the rev range, it's not gaining as well as it could. So once a V8 (and I'm talking the big strokers here, not 4.0 or less ltr V8s) has launched it just gets all kinds of wrong and you are wasting a lot of displacement to make not so great power. On the flip side a Honda VTEC engine hits max torque way up in the heady regions of RPM. This means it can't get off the line as quickly without a really clever launch. It does however mean that as the RPMS get higher, so does the torque so the power gains get quicker and quicker the higher you go. By keeping the torque up higher in the rev range, short stroker engines can get much better power / displacement ratios. Short strokers also make for better track race engines IMHO as their power up high is better (even if there is less of it than a big stroker V8). Or so I have been told. Correct me if I'm wrong those of you who are more knowledgeable than I. [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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