Madison MOtorshow and Dryft DynoDay!!!

[HAULN-SS]

1HP = "a strong horse could lift 150 pounds a height of 220 feet in 1 minute."

feet per minute

thats where your RPMs come in

[.RJ]

which is where "quick as possible" comes in

The little computer measures the rate of acceleration of the dyno roller.

So, in theory, yes there is "time" since its the the 2nd derivitive of speed, but you would be really reaching for that one.

[white_2kgt]

1HP = "a strong horse could lift 150 pounds a height of 220 feet in 1 minute."

feet per minute

thats where your RPMs come in

bahahahahhhah, lookup the actual definition of Horsepower as it relates to cars please and tell me how it is measured.

[.RJ]

1HP = "a strong horse could lift 150 pounds a height of 220 feet in 1 minute."

The dyno doesnt even measure HP anyways - its calculated based on Tq.

[HAULN-SS]

clearly, you wrap that distance around your spinning drum...i'm quite sure the more feet you go in a minute, the more power you have - so why would I spin the drum up slowly to my max RPMS? that wouldnt make sense...time is clearly a factor

[.RJ]

clearly, you wrap that distance around your spinning drum...

No, the weight of the drum is whats calibrated. Not the size. Its spinning the same speed (RPM) no matter how large it is.

that wouldnt make sense...time is clearly a factor

Maybe in your fucked up reality.

[CaptainHenreh]

clearly, you wrap that distance around your spinning drum...i'm quite sure the more feet you go in a minute, the more power you have - so why would I spin the drum up slowly to my max RPMS? that wouldnt make sense...time is clearly a factor

The drum is a known weight, which you are accelerating. The roller diameter only plays in measuring that weight and how far it accelerates.

You really, really need to learn how this stuff works.

[white_2kgt]

clearly, you wrap that distance around your spinning drum...i'm quite sure the more feet you go in a minute, the more power you have - so why would I spin the drum up slowly to my max RPMS? that wouldnt make sense...time is clearly a factor

You don't have to do a clutch dump in order to measure power.

[HAULN-SS]

oooo..weight huh? so they have 150lbs..or some other calibrated amount for weight in the drum -and they can use that amoutn of weight over the length of the circumference of the drum?

[.RJ]

and they can use that amoutn of weight over the length of the circumference of the drum?

:?:

If the drum is 12" in diameter or 12' the rotational speed (RPM) is the same. Of course, the larger the drum the more it weighs. Thats calibrated.

[HAULN-SS]

well, anyway, it doesnt matter - the point is, you dont think it'll be rough on a car that can drive under its own power huh? Cause it's slipping like mad, I didnt want to do such a rough "launch" that it blew shit up

[.RJ]

If the trans blows up on the dyno, it wasnt going to make it home anyways.

If its already slipping why are you going to drive it *anywhere* ?

[HAULN-SS]

im saying - according the definition of HP, you have to move some weight some distance - so the bigger diamteryour roller drum is, the less full rotations need to happen to cover that distance

[CaptainHenreh]

well, anyway, it doesnt matter - the point is, you dont think it'll be rough on a car that can drive under its own power huh? Cause it's slipping like mad, I didnt want to do such a rough "launch" that it blew shit up

It's no different from doing a pull from a rolling start on the highway.

On the highway, you're accelerating your car.

On the Dyno, you're accelerating the rollers. (A known weight, that's how they know how much torque you make and, by calculation, how much horsepower.)

[HAULN-SS]

I wanted to dyno it to do a before/after comparo how much power you lose through a slipping transmission - when I put a new one in later this summer

[.RJ]

im saying - according the definition of HP, you have to move some weight some distance - so the bigger diamteryour roller drum is, the less full rotations need to happen to cover that distance

No retard.

HP is a mythical figure. It doesnt really exist, its a calculated value.

HP = (RPM * Torque)/5252

[CaptainHenreh]

Horsepower is an function of torque over time. It's got nothing to do with weight or distance.

[HAULN-SS]

you clearly don't know where that 5252 comes from them.

It's rotations it would take to go around a 1' diameter circle to get to 220 feet, times 150 lbs

[.RJ]

you clearly don't know where that 5252 comes from them.

It's rotations it would take to go around a 1' diameter circle to get to 220 feet, times 150 lbs

:?: ^w-t-f? :?:

I'm done. Educate yourself, even if you only use wikipedia so that you can remove your head from your arse.

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[HAULN-SS]

actually..it just came to my attention, the RPMS cancel out