Torque in physics terms is a measure of rotational force, not work. Power would be what hp is. And hp and tq are not directly porportional at any given RPM. After 5250 RPM's, they are indirectly porportional.007 said:"Horsepower is a function of torque, not the other way round."
Nope. Thats stupid.. its math... of course its true in reverse! Hp and torque are directly proportional at any given rpm. You know tq and rpm, you know power. You know power and rpm, you know torque.
"The torque is a force"
Nope, Torque is not a force. A force would be measured in Newtons or lbs. Foot x lbs, or N x m, is a measure of Work (energy).
Rate of work (I.e. times it by the rev rate) is power.
Its pretty damn simple but so many people are confused by hp and tq:
HP = torque * RPM / 5252
That's almost like my car. What are your 1/8 mile ETs like?escudolm said:My 03 GT Auto., dynoed at 237rwhp and 280rwtq. Only thing done was MAC Prochamber and MAC Catback. Running on 87 gas and it was a decently hot day. Shop owner said they were the highest he had seen on a basically stock Auto.
03ghoststang said:below the stall speed it feels like there is just no power the car tends to feel slugish, but once it get there its nice and it can knock off like .3 on your1/4. But people debate on wether to get a triple plate or single plate TC...
droptopponynj said:So would you suggest a lower stall for street driven cars? more like 2500-2800 stall rather then 3200 or above.
03ghoststang said:well the one im getting is a 2800 stall with a triple plate... one of the reasons they get them around there is because it put the car right near its power band, and would get a better harder take off alot of people have them on DD stangs with a 2800-3200 stall.
007 said:"Horsepower is a function of torque, not the other way round."
Nope. Thats stupid.. its math... of course its true in reverse! Hp and torque are directly proportional at any given rpm. You know tq and rpm, you know power. You know power and rpm, you know torque.
"The torque is a force"
Nope, Torque is not a force. A force would be measured in Newtons or lbs. Foot x lbs, or N x m, is a measure of Work (energy).
Rate of work (I.e. times it by the rev rate) is power.
Its pretty damn simple but so many people are confused by hp and tq:
HP = torque * RPM / 5252
trinity_gt said:In fact it's true.
You've got your units all mixed up. A lbf applied on a moment arm of one foot produces a torque of 1 ft-lbf. When your clicker torque wrench goes "click" and the but stops turning, you are still applying a torque to that nut. And if it's not turning, there's no work being done. If you stand on a lug wrench but can't break those rusty lug nuts free, you're still applying a torque to the nut even though you're doing no work on the nut. Torque can be present with no work being done and no power being produced.
Work implies that a mass is being moved through a distance. Power is measure of the rate at which work is done. A torque applied to a moment arm provides the "force" and RPM gives the "distance." The rate at which an engine can produce torque defines its power output. Work != energy. Energy is nothing more than a potential to do work. A one-farad stereo stiffening capacitor may be charged with significant charge, storing lots of energy, but until its released into the low-impedance power amp, it's nothing but potential.
Right. The derivation of this equation goes back to James Watt's original observation that an average horse could haul 550 lbs of coal up a mineshaft one foot in one second, giving us the basis for the "horsepower." 550 lbs, one foot in one second is equivalent to 33,000 pounds one foot in one minute. 33,000/2*PI (2*PI radians defines a full revolution) gives the constant 5252.1131. Notice the units: ft-lbs/min.
Reciprocating engines are rotary machines that produce torque at their output shaft. Of course they're producing power any time that shaft is turning but fundamentally it's their torque output is measured on an engine dyno and converted to HP using that equation or something close to it with corrections.
Venom_Nitrous said:Must have read over my post. would have saved you some time. HAHA. This is actually gretting funny.
Toms_2003_Stang said:How much and where from?
poorcollegekid said:wow...i feel alot better about my 190 hp and 230tq now that i see PI 4R70W's are only making that much.
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