Post Whoring - Part 2

[Uditha88]

Edited October 29, 2014 by Uditha88

[Schiffer]

Erm O.o

Edited October 29, 2014 by Schiffer

[Schiffer]

LOL

[Dinukap4]

Thats a E34 M5 the driver's dead now.

Edited October 30, 2014 by Dinukap4

[Davy]

Damn... he wasn't even driving:
http://jalopnik.com/infamous-bmw-street-drifter-dies-in-crash-559957998

[MV-5]

Thats a E34 M5 the driver's dead now.

among our friends, he is very famous. in 2012 they were well organized (giorgi tevzadze (this driver) and giorgi kacadze and few more) and they ran the needfordrivers web site.they all are M5 lovers (his vehicle number is 00M-500).

[asrock]

I thought I saw a Indian Alto at 3:19?

Edited October 30, 2014 by asrock

[Blitz]

Trailer is finally out, but sad to see Paul Walker, R.I.P :sad-smiley-050:

[Magnum]

I did a lil research on why diesel engines have more torque and gasoline engines have more HP, i came across these two articles thought of sharing with you guys

• Why do diesel engines deliver more torque than gasoline engines?

1. .A gas engine compresses a fuel-air mixture and then ignites it with a spark. A diesel engine compresses just air, to such a high pressure and temperature that when fuel is then injected, it ignites automatically with no need for a spark. This is the fundamental difference between the two engines.

2. ....so, a diesel engine has to do more compression than a gas engine does, to get the fuel to ignite. Conversely, a gas engine cannot do as much compression as the diesel engine does, because the fuel-air mixture it is compressing would ignite too early, at the wrong moment. Remember the diesel engine just compresses air, so it doesn’t have that problem.

3. ....so, the piston in the diesel engine has to travel further, in order to compress the air more. So the piston stroke is longer in a diesel engine.

4. ....and, a longer piston stroke means a larger diameter crankshaft. Assuming the force coming from the gas piston and the diesel piston is equal, then the diesel piston has a longer lever arm and is turning its crankshaft with greater torque (but, necessarily, at fewer revolutions per minute). The gas piston may be delivering the same power, but it is delivering it by turning a crankshaft at more revolutions per minute, with less torque.

In fact, the diesel engine burns up the fuel a bit more efficiently, and diesel fuel has a bit higher energy content than gasoline, so a diesel piston should actually deliver more power from burning the same volume of fuel. But this is less important than the above argument in explaining the torque difference.

If and when you do want less torque and more speed, or more torque and less speed, than your engine is naturally inclined to give you, you can get it by gearing the engine up or down. That’s why cars have gears, and why big trucks have lots of gears. But of course, transmissions don’t come free, in any of various senses of the word “free.”

The following example made me understand why gasoline engines have a higher BHP

• Lets take 2 different engines for example.

Engine 1 : is a 2 ltr engine producing 200nm or 147.49 lbft of torque at 2500 rpm.

Engine 2 : is a 1 ltr engine producing 100 nm or 73.74 lbft of torque at 5000 rpm.

But see what happens when we calculate the power at the rpm where peak torque is produced.

engine 1 : bhp = torque * rpm / 5252 = 147.49 * 2500 / 5252 = 70.20 bhp.

engine 2 : bhp = torque * rpm / 5252 = 73.74 * 5000 / 5252 = 70.20 bhp.

As you can see, engine 2 which is just 1 ltr produces the same amount of power as that of the bigger 2 ltr'd engine, inspite of having half the torque.

This is pretty much the concept used in F1 engines. When engine capacity is limited, the only way a "Naturally Aspirated" engine can produce more power is if the torque is got at a much higher rpm.

Such engines are not the best when it comes to day-to-day use but can be fun to drive if you can manage to keep them within the "meaty part" of the power band.

So gasoline engines must be having more BHP cuz they achieve their peak torque at higher revs

[Dinukap4]

I thought I saw a Indian Alto at 3:19?

It is ! haha thats odd.

[SpeedyAsA]

I did a lil research on why diesel engines have more torque and gasoline engines have more HP, i came across these two articles thought of sharing with you guys

• Why do diesel engines deliver more torque than gasoline engines?

1. .A gas engine compresses a fuel-air mixture and then ignites it with a spark. A diesel engine compresses just air, to such a high pressure and temperature that when fuel is then injected, it ignites automatically with no need for a spark. This is the fundamental difference between the two engines.

2. ....so, a diesel engine has to do more compression than a gas engine does, to get the fuel to ignite. Conversely, a gas engine cannot do as much compression as the diesel engine does, because the fuel-air mixture it is compressing would ignite too early, at the wrong moment. Remember the diesel engine just compresses air, so it doesn’t have that problem.

3. ....so, the piston in the diesel engine has to travel further, in order to compress the air more. So the piston stroke is longer in a diesel engine.

4. ....and, a longer piston stroke means a larger diameter crankshaft. Assuming the force coming from the gas piston and the diesel piston is equal, then the diesel piston has a longer lever arm and is turning its crankshaft with greater torque (but, necessarily, at fewer revolutions per minute). The gas piston may be delivering the same power, but it is delivering it by turning a crankshaft at more revolutions per minute, with less torque.

In fact, the diesel engine burns up the fuel a bit more efficiently, and diesel fuel has a bit higher energy content than gasoline, so a diesel piston should actually deliver more power from burning the same volume of fuel. But this is less important than the above argument in explaining the torque difference.

If and when you do want less torque and more speed, or more torque and less speed, than your engine is naturally inclined to give you, you can get it by gearing the engine up or down. That’s why cars have gears, and why big trucks have lots of gears. But of course, transmissions don’t come free, in any of various senses of the word “free.”

The following example made me understand why gasoline engines have a higher BHP

• Lets take 2 different engines for example.

Engine 1 : is a 2 ltr engine producing 200nm or 147.49 lbft of torque at 2500 rpm.

Engine 2 : is a 1 ltr engine producing 100 nm or 73.74 lbft of torque at 5000 rpm.

But see what happens when we calculate the power at the rpm where peak torque is produced.

engine 1 : bhp = torque * rpm / 5252 = 147.49 * 2500 / 5252 = 70.20 bhp.

engine 2 : bhp = torque * rpm / 5252 = 73.74 * 5000 / 5252 = 70.20 bhp.

As you can see, engine 2 which is just 1 ltr produces the same amount of power as that of the bigger 2 ltr'd engine, inspite of having half the torque.

This is pretty much the concept used in F1 engines. When engine capacity is limited, the only way a "Naturally Aspirated" engine can produce more power is if the torque is got at a much higher rpm.

Such engines are not the best when it comes to day-to-day use but can be fun to drive if you can manage to keep them within the "meaty part" of the power band.

So gasoline engines must be having more BHP cuz they achieve their peak torque at higher revs

Very informative Magnum. Thank you for sharing this..

BTW, if you could describe from where the 5252 value came into the calculation please...

[iRage]

Very informative Magnum. Thank you for sharing this..

BTW, if you could describe from where the 5252 value came into the calculation please...

It is a conversion factor. Torque is in pounds per feet but horsepower can be defined in foot pounds per second;ten RPMs are in revolutions per minute so you need to convert it to a common unit. When you go through the calculations you come with a factor of 5252

Edit : Read this if you want to go in to details : http://auto.howstuffworks.com/question622.htm

Edited November 4, 2014 by iRage

[SpeedyAsA]

It is a conversion factor. Torque is in pounds per feet but horsepower can be defined in foot pounds per second;ten RPMs are in revolutions per minute so you need to convert it to a common unit. When you go through the calculations you come with a factor of 5252

Edit : Read this if you want to go in to details : http://auto.howstuffworks.com/question622.htm

Thanks much for the clarification iRage.

[Magnum]

Very informative Magnum. Thank you for sharing this..

BTW, if you could describe from where the 5252 value came into the calculation please...

It is a conversion factor. Torque is in pounds per feet but horsepower can be defined in foot pounds per second;ten RPMs are in revolutions per minute so you need to convert it to a common unit. When you go through the calculations you come with a factor of 5252

Edit : Read this if you want to go in to details : http://auto.howstuffworks.com/question622.htm

I also read that 5,252 RPM is used cuz the torque and HP curve meet at that point

[MV-5]

I also read that 5,252 RPM is used cuz the torque and HP curve meet at that point

[Rumesh88]

I also read that 5,252 RPM is used cuz the torque and HP curve meet at that point

It is just a corollary. The real reason is that it is a conversion factor as pointed out by iRage. However if you plot curves Torque Vs RPM and HP Vs RPM on he same scale the two would meet when the RPM = 5,252 thus satisfying the equation Torque = 5252 * HP/RPM (For Torque to be "numerically" equal to HP you should have RPM = 5252).

[Uditha88]

Press "R" while playing

https://www.youtube.com/user/HondaVideo

Edited November 5, 2014 by Uditha88

[Magnum]

[Magnum]

Edited November 5, 2014 by Magnum

[Blitz]

"AIAIAAIAIIIIIIIIIAIAAIIAA I'm a canberra milk kid"... dafuq...

[Magnum]

I got this via an E-mail..

[maheshw]

Wow super news....any more info ?

[Magnum]

Wow super news....any more info ?

Along with it there was a document about sponsorship

[Magnum]

Love the FH16

Edited November 11, 2014 by Magnum

[Dinukap4]

among our friends, he is very famous. in 2012 they were well organized (giorgi tevzadze (this driver) and giorgi kacadze and few more) and they ran the needfordrivers web site.they all are M5 lovers (his vehicle number is 00M-500).

yes I know, I've watched every single Video about a E34 when I was gonna buy one. And that buggers one major moron driving like that on the roads..