TwinTurbo.NET: Nissan 300ZX forum - Well, a watermill generates ~1600ft/lbs of torque
People Seeking Info
 
   


     
Subject Well, a watermill generates ~1600ft/lbs of torque
     
Posted by AshsZ of Z1Motorsports.com on August 02, 2003 at 1:04 PM
  This message has been viewed 55 times.
     
In Reply To yeah, but... posted by Marshall on August 02, 2003 at 12:24 PM
     
Message but only at 15RPM = 4.6HP. It wont be able to do much work.

I think I may have come up with something.

torque = force
horsepower = force-time
horsepower-distance = work
work-time = gets the car down the track

You gotta have torque to make power, but it has to be at significant RPM to actually do a lot with it.

Compare a rotary engine to this watermill. The watermill would jump off the line with significacntly better aceclleration, but its accelleration would sharply fall off and it wouldn't move much faster while the rotary hits the 1320 before the watermill makes 3 revolutions.

Horsepower has got to be the be-all, end all of performance statistic because it tells you how much work you can do. Hooking the car up at the starting line or waxing a vette from an 80MPH interstate roll is where other dynamics like traction and drag resistance play a bigger role, but those are independent of the power it takes to even make those scenarios happen.

The idea of having a rotary engine with 200ft/lbs of torque and simply launching it at high RPM with sticky tires to get it off the line gets the ET down. High RPM and low torque = high HP. Going down the track, it will continue to accellerate while the rest begin to 'lay down' after a certain point.

If you have high horsepower, you have high RPM. You can never make high horsepower with low RPM (in an automobile engine). If you have high RPM, you can use that to your launchinig strategy to hang with the torque monsters, and then you'll simply walk away from them on the top end of the track (or on a highway run).



[ ashleypowers.com ]
[ agpowers@bellsouth.net ]

[ Zemulator Information Sheet ]

Enthusiasts soon understand each other. --W. Irving.
Are you an enthusiast?

     
Follow Ups  
     
Post a
Followup

You cannot reply to this message because you are not logged in.