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Old 10-27-2002, 06:33 PM
E.T. divided by $ spent= Speed
 
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Post Dyno run and accesories

On a typical dyno run what accesories do they run with???Water pump,fan and alt???

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Old 10-27-2002, 06:58 PM
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That would depend on what horsepower you want to get. That's one of the things that made horsepower readings drop in the mid seventies (not all of it from compression loss) and again later. Factory readings used to be without any accesories, using a dyno waterpump and equal length headers and outside air, that's the reason so many varied from what you actually got. Later they started running them with the factory pump and alternator, but I believe still with dyno headers and optimum air. Now days the readings are taken from an engine just as it is plugged into a car, accesories, exhaust manifolds and air intake, so even though current figures seem lower than those of long lamented times, they are more accurate and more closely reflect what you really get. So if you want an accurate reading run it as you would be putting it in the car, if you want bragging rights run it naked.

[ October 27, 2002: Message edited by: woodz428 ]</p>
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Old 10-27-2002, 10:57 PM
E.T. divided by $ spent= Speed
 
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The reason I ask is I'm building a motor very similar to one in an old issue of hotrod.It Dynoed at 300HP and 355lb/ft through headers and duel 2 1/4".Now I was wondering wether they used the accesories or not.I'm figuring they probably ra the water pump off it but not sure.
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Old 10-27-2002, 11:02 PM
E.T. divided by $ spent= Speed
 
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OH yea figured I'd get it strait from the horses mouth so I E-mailed Hotrod and asked um hopfully I get a reply tomarrow.Probably a reply stateing how I can order a back issue for 19.95 on master card.
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