Very interesting, thanks for the response! Am I correct in thinking by installing a full exhaust system/high flow airfilter/re-map horse power increases due to more torque as the time variable is still the same (max RPM)?
There's a video coming tonight that will make this clearer - but to be more direct to your question, exhaust, air filter etc is all about increasing your engines in and out respiratory system. This increases the engines efficency and not the fuel kind, its ability to produce or recover torque - i.e your engine becomes fitter lol this increases the torque production so naturally power increases - matt
Sorry meant entire graph, at 10:02. The graph they release isn't the entire one? For example why users like love the er5 engine because it fun, the magazine's say it has no power and no torque... Thanks for the answer.
Best part of the video is from 11:05 to 13:55 , because there I wont miss anything while I grab a beer. Although some funky elevator tune would be appreciated next time.
ok, can anyone tell me? i'm about to buy a bike and it has 12.14 HP @ 7750 RPM, is this a good deal? its 150 CC (HONDA XR-150), will this be a good buy? considering for street (when i'm in city) and offroad while i'm travelling. thanks.
I have a question about this since a looong Time ago...looking at a given graph about HP and Torque vs rpm...is there a range of rpm prefered to run the engine at? And if there's one, what would It be? (In terms of fuel economy, better engine response...maybe rendement, if such a word exists). I Ask this because it's obvious that a bike "préfers" to run in a certain range, it "works" better, it responds better...so, I Guess that we could figure It out by looking at those graphs...Can you explain this, please? And if possible, keeping an eye on fuel consomption...? Cheers, Matt !
like a 2000 ft lb tq engine that turned 1 rpm would almost useless. like a 2000 HP engine that has to turn 100,000 rpm to make that power. is almost useless. if there was a 500 HP at 6,000 rpm engine. with 500lbs tq. at 4,000 rpm. would be a lot more useful.
its funny how many people i have met who actually didnt get the idea close but just they never clicked on oh how the torque was measured and calculated to make power numbers i wonder how many other on this particular video will know the actually difference ill be watching the comments closely
I would assume the most popular would be the best. Manufacturers would have worked it and built whatever gave them the best bragging rights. A "V" sits better in the frame so thats my choice. However I'm thick so hopefully a brain will pop by and let us know.
How does a gearbox & drivetrain change torque? You showed you can measure torque at the crank shaft. Do manufacturers take the torque measurement at the crank shaft or the rear wheel. They say if you change the sprockets it changes the torque its a compromise between acceleration & top speed i guess.
Can you run it outside of an engine first? Like to see a bench test of one of these. What a monstrosity, why so ridiculous? Does it get rid of a fuel pump or something?
So the Bandit engine is generally the "stronger" engine, where the MT09 engine was capable of the greater amount of HP simply because it perhaps rotates faster, so it has more "power". Is that correct? This topic has made me struggle a little as well.
There's alot of things that change how each engine operates. But in a very simple way yes, increasing the rpm with the same torque will increase power.
isnt supercharging a form of forced air induction? like ou get natural aspiration, then forced air induction in the form of turbo or superchargers, would nos maybe count as forced air induction too?
The formula for figuring out HP is Torque x rpm/5252. HP is a function of engine torque and is directly related to RPM. HP will always be lower than torque below 5252 RPM’s and above torque at over 5252 RPM’s. This is all to do with the conversion of the olde worldy Horse Power. I'll do a video soon -
Any HP Torques graph that doesn't cross at 5250 RPM is a doggy one that has the dyne correction numbers massaged to give a better result than it actually is. This is a fairly common trick used by some engine tuners to say "Aren't we great. We got you x% more power than you come in with"
thanks for the explanation :) but i dont think i'm grasping one thing. when you say for instance 88nm of torque, is the distance in meters still one? like is it 88 newtons per one meter from the centre? is the distance in meters a standard thing in the measurement? because surely different engines have different distances and therefore make the torque differently with the same number of newtons? i'm starting to realise there is maybe a calculation involved... like if an engine has a 2 meter crank and has 20 newtons acting on it it would be a different story as 20 newtons on a 3 meter crank... right? i've confused myself p.s. i know those measurements are ludicrous unless its like a cargo ship or something
wait, nope, i think i got it. torque is the /sum/ of newtons acting on whatever size crank. so one engine makes 88nm of torque with a certain number of newtons acting on a certain size crank, another engine can have the different newtons and different crank size and still make the same torque. awesome :D
Yea.. But actually its just me ranting.. I am getting fed up with the whole (mostly US based) torque/power deboggle, when in fact they are the very same, expressed by the very fixed and simple correlation: P=T * w. People fucking act like there is NO connection between the power curve and the torque curve.. Give me the one, and I will Print you the other without the dynodata.. Hows that for correlation? Great show by the way :-)
Shit this was created in 2016! Man got some catchin up to do! As usual good info good laughs + 1 moth!
Very interesting, thanks for the response! Am I correct in thinking by installing a full exhaust system/high flow airfilter/re-map horse power increases due to more torque as the time variable is still the same (max RPM)?
There's a video coming tonight that will make this clearer - but to be more direct to your question, exhaust, air filter etc is all about increasing your engines in and out respiratory system. This increases the engines efficency and not the fuel kind, its ability to produce or recover torque - i.e your engine becomes fitter lol this increases the torque production so naturally power increases - matt
i'd love to see dels version... lol
Sorry meant entire graph, at 10:02.
The graph they release isn't the entire one?
For example why users like love the er5 engine because it fun, the magazine's say it has no power and no torque...
Thanks for the answer.
Best part of the video is from 11:05 to 13:55 , because there I wont miss anything while I grab a beer. Although some funky elevator tune would be appreciated next time.
Oh shit lol what happened there lol
By the way, excellent video as usual! Please keep these up.
ok, can anyone tell me? i'm about to buy a bike and it has 12.14 HP @ 7750 RPM, is this a good deal? its 150 CC (HONDA XR-150), will this be a good buy? considering for street (when i'm in city) and offroad while i'm travelling. thanks.
I have a question about this since a looong Time ago...looking at a given graph about HP and Torque vs rpm...is there a range of rpm prefered to run the engine at? And if there's one, what would It be? (In terms of fuel economy, better engine response...maybe rendement, if such a word exists). I Ask this because it's obvious that a bike "préfers" to run in a certain range, it "works" better, it responds better...so, I Guess that we could figure It out by looking at those graphs...Can you explain this, please? And if possible, keeping an eye on fuel consomption...? Cheers, Matt !
Good! So the 164hp and 130Nm out of 1157cc has the bigger balls then a Bandit and a MT09... LOL
like a 2000 ft lb tq engine that turned 1 rpm would almost useless. like a 2000 HP engine that has to turn 100,000 rpm to make that power. is almost useless. if there was a 500 HP at 6,000 rpm engine. with 500lbs tq. at 4,000 rpm. would be a lot more useful.
As always a very nice and clear explanation :)
Fantastic vid Matt 👍🏻 so well explained👏
Why say no correlation between the two? do you just mean the numbers that give up?
its funny how many people i have met who actually didnt get the idea close but just they never clicked on oh how the torque was measured and calculated to make power numbers i wonder how many other on this particular video will know the actually difference ill be watching the comments closely
Which one is better? 650cc parallel twin or 650cc v twin with similar hp and torque? And why?
I would assume the most popular would be the best. Manufacturers would have worked it and built whatever gave them the best bragging rights. A "V" sits better in the frame so thats my choice. However I'm thick so hopefully a brain will pop by and let us know.
How does a gearbox & drivetrain change torque? You showed you can measure torque at the crank shaft. Do manufacturers take the torque measurement at the crank shaft or the rear wheel. They say if you change the sprockets it changes the torque its a compromise between acceleration & top speed i guess.
ATTL - matt
Can you run it outside of an engine first? Like to see a bench test of one of these.
What a monstrosity, why so ridiculous? Does it get rid of a fuel pump or something?
I'm totally lost - what?
HP = ( torque ft.lbs ) * RPM / 5252
So the Bandit engine is generally the "stronger" engine, where the MT09 engine was capable of the greater amount of HP simply because it perhaps rotates faster, so it has more "power". Is that correct? This topic has made me struggle a little as well.
There's alot of things that change how each engine operates. But in a very simple way yes, increasing the rpm with the same torque will increase power.
How about forced air induction vs supercharged. Not a new concept been around for years, Why is it making a come back
Cheers Keith
Really great idea keith will do - matt
isnt supercharging a form of forced air induction? like ou get natural aspiration, then forced air induction in the form of turbo or superchargers, would nos maybe count as forced air induction too?
I was told horsepower is how fast you go to hit the wall and torque is how far through it you go
How fast you hit it(HP)
How far you take it with you(Torque)
This is how I heard it
Why does HP and TQ always cross each other at 5250 rpm on a dyno chart?
The formula for figuring out HP is Torque x rpm/5252. HP is a function of engine torque and is directly related to RPM. HP will always be lower than torque below 5252 RPM’s and above torque at over 5252 RPM’s.
This is all to do with the conversion of the olde worldy Horse Power. I'll do a video soon -
Any HP Torques graph that doesn't cross at 5250 RPM is a doggy one that has the dyne correction numbers massaged to give a better result than it actually is. This is a fairly common trick used by some engine tuners to say "Aren't we great. We got you x% more power than you come in with"
must be the Illuminatis...
Hello Matt, what do you mean by don't show the hole graphic?
Sorry mate which bit?
whole not hole
thanks for the explanation :) but i dont think i'm grasping one thing. when you say for instance 88nm of torque, is the distance in meters still one? like is it 88 newtons per one meter from the centre? is the distance in meters a standard thing in the measurement? because surely different engines have different distances and therefore make the torque differently with the same number of newtons?
i'm starting to realise there is maybe a calculation involved... like if an engine has a 2 meter crank and has 20 newtons acting on it it would be a different story as 20 newtons on a 3 meter crank... right? i've confused myself
p.s. i know those measurements are ludicrous unless its like a cargo ship or something
wait, nope, i think i got it. torque is the /sum/ of newtons acting on whatever size crank. so one engine makes 88nm of torque with a certain number of newtons acting on a certain size crank, another engine can have the different newtons and different crank size and still make the same torque. awesome :D
where did you get the pic of the body building horse. ∆ ∆
}{
°~~~°. I would like a copy of it, where can I get one?
the internet
Verry helpfull i like this subject as well because alot of ppl assume they know it all if they can jet a carb.um no.thanks mat verry helpfull
At 9:00 the man in the telly says: "and there is no correlation between the two"
I stopped viewing right there..
R
No correlation between the two, because as one drops the other rises? Is that what you think? Based on rpm?
Yea.. But actually its just me ranting.. I am getting fed up with the whole (mostly US based) torque/power deboggle, when in fact they are the very same, expressed by the very fixed and simple correlation: P=T * w. People fucking act like there is NO connection between the power curve and the torque curve.. Give me the one, and I will Print you the other without the dynodata.. Hows that for correlation?
Great show by the way :-)
give him the horse power one lol
Whats the torque in a 500 hp engine then?
How much HP with 1700 ft/lbs of torque?