Thoughts on the 2007 Shelby GT500

[tennis_dog]

what's the diff between higher torque and high rev lines??? torque givse you the best acceleration and high rev lines means.....what? you stay long in the gear?

 

[C.R.Y.]

theyre both different ways to accelerate. you can use torque and run tall gears in the tranny and run a taller gear ratio, so you can move more with less revs basically because you have torque to rotate them large gears. like mustangs that use 3.55 and 3.73 gears. some use 4.10s. the 4.10s do make the car faster but lowers your tops speed and raises your cruising rpms.

cars that revs higher uses shorter gears usually, and gets its acceleration from revs. it has smaller gears, but revs higher to make up for not having tall gears and having less torque. like an integra type r usually has like a 4.7 gears IIRC. how long you stay in gear depends on the engines redline and the gearing.

 

[Duke]

theyre both different ways to accelerate. you can use torque and run tall gears in the tranny and run a taller gear ratio, so you can move more with less revs basically because you have torque to rotate them large gears. like mustangs that use 3.55 and 3.73 gears. some use 4.10s. the 4.10s do make the car faster but lowers your tops speed and raises your cruising rpms.

cars that revs higher uses shorter gears usually, and gets its acceleration from revs. it has smaller gears, but revs higher to make up for not having tall gears and having less torque. like an integra type r usually has like a 4.7 gears IIRC. how long you stay in gear depends on the engines redline and the gearing.

Good explanation. Despite your fanboyism towards the lump of hamburger called the GT500 you retained your car knowledge

 

[tennis_dog]

ok....i think i just learned somethign else about torque....

after taking physics last year... torque is, i dunno the exact definition, but the force exerted to get something into motion...right?? is is HP comparable to work, which is what is actually keeping it in motion??

a real crappy analogy would be for a runner...the quick burst of speed, whatever may cause that (strong legs or whatever) is comparable to torque....stronger legs equal more torque, quicker pushoff from the start line, and then the heart is comparable to HP or work, which is what actually keeps you at the speed you're going? is that it?

so the torque really is....torque..which is being exerted on the crankshaft?

 

[Duke]

ok....i think i just learned somethign else about torque....

after taking physics last year... torque is, i dunno the exact definition, but the force exerted to get something into motion...right?? is is HP comparable to work, which is what is actually keeping it in motion??

a real crappy analogy would be for a runner...the quick burst of speed, whatever may cause that (strong legs or whatever) is comparable to torque....stronger legs equal more torque, quicker pushoff from the start line, and then the heart is comparable to HP or work, which is what actually keeps you at the speed you're going? is that it?

so the torque really is....torque..which is being exerted on the crankshaft?

Aye, and the runner analogy was used earlier on this forum. But yes, that's what it is. Torque is the force the engine puts on the crankshaft. Pure strength. Horsepower, or KiloWatts, is the amount of effective work the engine can deliver.

For example, a waterwheel, 10 feet in diameter, slowly turning in the river. It's connected to a grinder which, well, grinds oats n stuff. Now, at the "crankshaft" the torque of the waterwheel is immense. The raw force exerted on the mechanism by the force of the water would be something the equivalient of 4 V8 engines in torque. But the amount of P(ower) it produces is very little, simply because it isn't turning fast enough to transform that immense power into effective energy.

 

[tennis_dog]

ah ok ....i didnt see that runner analogy earlier... but aight, i think i got it...

then the revs part...the engine revolves?

 

[DeeezNuuuts83]

ah ok ....i didnt see that runner analogy earlier... but aight, i think i got it...

I think this is what you're looking for, from my Evo thread:

Based on the runner analogy, torque = getting off the starting line and how quickly the runner goes from one speed to a higher speed; hp = how high of a speed he can reach.

then the revs part...the engine revolves?

The engine doesn't revolve. There is a crankshaft inside the engine that spins, and the pistons are connected to it. As the crankshaft spins, it pulls and pushes the pistons in and out. So that is what is revving.

 

[tennis_dog]

i didnt think the engine revolved either...i felt stupid typing that, but i distinctly remember someone saying something about the engine rotating or revolving....revolving around what, i dont know, but i thought it was kinda weird too....kinda challenged what i thought was right...but ok....