drivetrain loss????

[Rev]

Originally posted by cyberstang5.0
Sorry for being so difficult about this, it's starting to gel a little more...

Ok, explain this....
I know magazines are not all that dependable when it comes to testing performance parts so I'm not expecting this example to fly very far. Let's say they are testing cat-backs. If they test part A and dyno the car they claim they got 10 more HP and 15 more ft/lbs of Torque. If they test part B on the same exact car they will get the same 10 HP but only put out 12 ft/lbs. If this is true, then the formula would be incorrect seeing as how your using the same cam, on the same car.

Also, at what point do you start to make more HP then torque? When I had my stock motor I pulled a 240HP/300Tq at the wheels. Some of the bigger motors will have more HP then Tq. Why all of the sudden the loss of torque? John Force doesn't have 6000HP/8000ft/lbs. It's more like 6000HP/2000ft/lbs.

One thing the mags do in comparisons, is to overlay the before and after graphs. The numbers they quote are the biggest differences in torque or HP throughout the test, ie. the most difference that can be measured at any given RPM. That emphasizes the benifit of the mod.

Rev