331 daily driver

I daily drive my 327. Does great. AC works fine. Actually gets better gas mileage on the freeway than the stock motor did. Mine will be blown too, 8.5compression. My cam is mild (Ed Curtis custom, blower friendly, smog compliant) I made 310rwhp and 351rwtq on a Mustang style dyno. Car pulls hard when I get on it, yet is docile when driven easy

StormWatch said:

What is 'force' in the automotive world?

Could it be torque...?

If so, you just answered my question about lightweight internals getting to RPM faster. If rotating weight does not matter, Why do performance engine builders go to great lengths to get the lightest rotating assembly?

It's all about the 'are under the curve'.

Click to expand...

Sorry Storm, but physics has been around alot longer than any automotive industry.

Torque - "It is equal to the magnitude of the component of the force lying in the plane perpendicular to the axis of rotation, multiplied by the shortest distance between the axis and the direction of the force component"

Or in english that would be ....torque = force x length (from where force is applied, to where measured). That's why Torque is measured in ft-lbs or Nm and force isnt.

I think you are totally missing the point of what Micheal is trying to say. You are right that lighter internals DO make a difference , but you are forgetting that you are talking about measuring at the crank. 400 Crank HP is 400 Crank HP. Now if you lightened your internals and made 410 HP using the same amount of energy...then that's a whole different ball game.

400 Hp has the ability to exert a certain amount of acceleration on any given car. The differenciating factor is the mass of the car you are trying to accelerate. If your block/internals or whatever is lighter it will be able to accelerate faster (not taking into consideration, traction, or driveline losses).

I knew studying physics for 4 years would come in handy one day !!