Recent content by Braymond141

Still trying to find out what kind of drag equation that would apply to all the components of an AWD car.

Thanks! Yup, but it's more specific than that. BMW and many car companies adjust the computer controlled top speed limit per the car's suspension or current regulations. My 96 M3 has a limit of 137mph An e36 325 has a 125mph limit An E46 325 has a 117mph limit An E46 330 and M3 has the...

So power isn't really lost (after all the whp calculations at that speed)? Is there a proper term for this (kinda like terminal velocity of a falling object)?

Here's a quick question. When a car reaches it max speed based solely on resistance (meaning gearing would allow for more speed, but HP isn't high enough to push it anymore) what is happening? At this max speed is power said to be null? Or is there a better way to describe what happens to the...

I think I just overlooked something. It's possible in each gear the whp numbers stay the same, because at some point the rpms will go all the way to redline allowing for hp to be measured from the function of torque. But what changes is the time it takes to reach that point. With all those...

Gears meshing together are different than bearings...

It's already proven though. It takes more WHP for an AWD car to go 100-150mph (time) than a RWD car. blah...

Driveline loss for my car is around 17% with age factored in Driveline loss for the 60/40 transferred Evo is 25% I knew these, I'm looking for how much those numbers increase as you go faster. Those percentages are gathered from a known crank HP number from the factory and a whp dyno in ONE...

Yeah, that's what I'm having a hard time finding too... this stuff isn't posted! Also people are unfortunately brainwashed into thinking that a dyno means every gear will have that hp curve, when it will indeed not and adding in drag at 150mph (which dyno's don't do or maybe they do to a...

Homer, maybe you didn't finish the equation or I am miss understanding. When you chart that out it says power increases as speed increases. I'm guessing that's a formula for calculating how much power is needed to go X amount of speed. Need to know how much power is lost as speed rises due to...

The extra 2 wheels means there are 2 more half shafts (axles), one more diff, and a transfer case (where the power is set at 60% rear/40% front, or 50/50 if it makes it easier). Some cars use a 2nd driveshaft, but for arguments sake will stick with the one.

Greg, I know how cars work. I've done many many many passes at the drag strip. I'm not looking for an explanation of how things work; I've already stated that. I just need a top speed calculation of power losses as the car fights against drag (internal and external) forces at speed. Homer; post...

minimize the focus a little more. Grip isn't an issue. both cars weigh the same both cars have identical final drive ratios (including wheel/tire size) both cars have identical drag coefficients

Here's some information I found elsewhere that explains it 10x better than I could. "Well it's obvious, really. At lower speeds the engine power is consumed only by the AWD system. So 0-100 km/h, AWD cars put in a good showing. However, at higher speeds aerodynamic drag starts to consume more...

On a dyno with 4 rollers