More Torque than Hp?

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I still don't get why people think torque and hp are two different types of power.

Everything you need to know is right in the formula. Lets simplify the formula and take out the horse part. Rpm x torque = power.
What is that telling us. Say the eg. Is 500 lbs-ft @ 5000 rpm = power. So that 500 lbs-ft in 1 revolution is added up 5000 times to get the total power of the engine. No matter how much torque your engine makes 1 revolution ain't gonma get you far. Rpm is just important to your engines ability. Thats why engines with vastly two different toque outputs can be just as capable as each other or even the one with less torque can be more powerful. Cause torque is only half the equation. What matters the total torque over time "rpm" that counts.
 
torque/ hp, I'm too fat and old, still got it, hp was boost adjustable
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Thanks guys for all of the comments. I learnt a lot. Appreciate it.
Cheers,
Glenn.
 
Max1196 said:
torque/ hp, I'm too fat and old, still got it, hp was boost adjustable View attachment 1715147618
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Wow, I haven't seen one of those in many decades, nearly 4 if I remember right. Very late 70s?
I was all set to pull the trigger on an 83 GPZ Turbo:) 750, But kid # 3 arrived,:):):) and you know how that goes. So I got the non-turbo instead.:(
 
mild hijack on my part, torque outa the hole sucked bad, 7500 then it would come on and ON! to the point my hands if sweaty lost grip of the bars. There's a 3 by 2 foot framed picture of this one on display at the Kawi dealer in Red deer Alta. (without all the dust)
 
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Sweet. I guess we're showing our ages.
But I'm not fat . The 210 on the scale just proves I have heavy bones.Everybody knows bones are made of stone. Well mine are made of Calciumstone, and I can prove it! I peed out a couple of pieces of it not long ago. One was 7mm, and the other was 5mm, and there's at least 5 more of them sumbtchs still growing in there.
Well,Ok, there might be a little extra padding here and there,lol.
 
Simply build the engine for good HP OR torque and the other will fall into place.
 
IQ52 said:
What if this were real? Oh wait, it is!

View attachment 1715147732
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This engine kind of proves torque in itself without the context of rpm is of less importance. Over the 3000 rpm the torque is practically the same. But there a vastly difference in power at 6000 rpm than 3000 rpm. Basically doubling the power even though torque is virtually the same.

Reason why at 3000 rpm your basically making 500 + lbs-ft per revolution at only 3000 times a minute and at 6000 your doing 500 ish lbs-ft at 6000 times a minute doubling the work being done "hp".

If torque is king like some like to think. Then this engine would be just as strong at 3000 rpm as 6000 rpm but its obviously not. Another engine could make even a better hp curve with less torque but more rpm. Like i said before torque is important but everyone dismisses his equally as important little buddy "RPM". And it there combined efforts thats all important expressed as hp.

And why do i think this is important. For most builds its not. Doesn't matter if you veiw low end torque or for me low end hp is the correct way to look at or if you think torque does one thing and hp does another.
For either veiw usually leads them down the right path. But there are times where it leads to bad advise. Especially those who like or interested in building power through rpm over torque. Then they usually get beat over the with a 4" stroke until they submit :)
 
ir3333 said:
Who can explain why they always intersect at 5200 rpm?
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It cross there cause mathematically the rpm and constant of 5252 cancel each other out.

But in reality nothing is crossing over.
If you drop the horse part out the equation
And just compared engine with raw power numbers, Power and Torque would never meet. T x Rpm = P, 500 x 5252 = 2,626,000P.
Instead of 500 hp.
 
HP is speed... Torque is what moves the load.

The trucks I drive are 450 HP at 1500 rpm but they generate 1650 ft lbs of tq at 1150 rpm.

The ultimate example if tq is waking up in the am with a p*ss hard on and when you push down on your dick to aim for the toilet your heels leave the floor...
 
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Krooser said:
HP is speed... Torque is what moves the load.

The trucks I drive are 450 HP at 1500 rpm but they generate 1650 ft lbs of tq at 1150 rpm.

The ultimate example if tq is waking up in the am with a p*ss hard on and when you push down on your dick to aim for the toilet your heels leave the floor...
Click to expand...

Dont why i cant let this go :)
Forget about hp.
You can think of torque and rpm separately but in reality they can never be separate.
A running will always produce torque and rpm. So you engine has 1575 lbs-ft @ 1500 rpm peak power. Its making 1575 lbs-ft per revolution x 1500 revolutions a minute. And its that combined ability is what moves and accelerates your truck and the rate it does it. But we need someway to discribe that ability which is very easy just times rpm and torque will give you engines power, rpm x torque = P. That formula will still give the same engine curves that we have now but be expressed in the millons. 2,362,500P we could easily use that number to compare engines but back then they wanted to compare engines to horse so they divided that by 5252 which gives us are fimilar 450 HP number.

So torque and hp dont do two different things, torque with rpm do everything and we express that combined effort as hp.
 
Oh boy! Math a mania!

So is it possible to have an engine spin rpm without making any torque and hp?!?!

If we add a turbo, can the same be done?


LMAO!!!
 
rumblefish360 said:
Oh boy! Math a mania!

So is it possible to have an engine spin rpm without making any torque and hp?!?!

If we add a turbo, can the same be done?


LMAO!!!
Click to expand...
An engine without load produces almost no HP or torque except for what is necessary to overcome the parasitic drag (friction from bearings, valve springs, water pump etc.). The load of the dyno measures the potential.
 
toolmanmike said:
An engine without load produces almost no HP or torque except for what is necessary to overcome the parasitic drag (friction from bearings, valve springs, water pump etc.). The load of the dyno measures the potential.
Click to expand...


True but a running engine cannot produce zero torque or zero rpm, its always producing both which means is always making power.
 
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