[enrita]

Originally Posted by R1000K3

Gents,

There is something fishy with the second dyno run in OP http://www.e90post.com/forums/showpo...51&postcount=1

I think we can agree in that power and torque are equal at 5250 rpm per definition of how hp is calculated (hp=torque*rpm/5252).

The power at 5250 rpm is 475 hp. The Torque at 5250 rpm is 420 lbf-ft (570 Nm). This reveals an error of 475-420= 55 hp. The error coincides exactly to the power increase between 4th and 5th, which was 54 hp

I know this will not convince EDO, and couldn't care less to be honest, but it is clear that the dyno operator has made a major mistake. despite he has extensive experience from 1000 dyno pulls

Game Over.

well there you go

[edo]

Originally Posted by R1000K3

Gents,

There is something fishy with the second dyno run in OP http://www.e90post.com/forums/showpo...51&postcount=1

I think we can agree in that power and torque are equal at 5250 rpm per definition of how hp is calculated (hp=torque*rpm/5252).

The power at 5250 rpm is 475 hp. The Torque at 5250 rpm is 420 lbf-ft (570 Nm). This reveals an error of 475-420= 55 hp. The error coincides exactly to the power increase between 4th and 5th, which was 54 hp

I know this will not convince EDO, and couldn't care less to be honest, but it is clear that the dyno operator has made a major mistake. despite he has extensive experience from 1000 dyno pulls

Game Over.

Your calculations aren't quite right.

Power @ 5250 is ~485 hp. Torque @ 5250 rpm is ~660 Nm, which is ~487 lbf-ft. 485-487=-2. That is zero, keeping in mind how we got the numbers @ 5250 rpm (from the graph).

FAIL

Another sleepless night?

[edo]

Originally Posted by enrita

well there you go

Yes, indeed

I honestly don't think my car makes 439whp. But I don't know what happened that evening. There are no hard facts proving that was some kind of mistake so far. All the other cars made as much power, as they should have or even less.

But, as I mentioned before, let's say I made 385 whp.

[biz77]

Originally Posted by edo

That's a bad example. YEs, there's one horse as you can SEE it. As far as I can see, you don't understand the basics of how a dynanometer and transmission works. Unfortunately, dynamometer doesn't SEE the power, it "feels" and calculates it. And the power to the wheels is deliveret through transmission, but you somehow just don't get it. Transmission has gears which have different gear ratios. My piece of advice - do some reading about gearing. Then you'll realize you were wrong.

Hate to burst your bubble, but it is R1000K3 that is correct. It is simple physics. Lower gears multiply torque, but power (work over time) doesn't change.

[edo]

Originally Posted by biz77

Hate to burst your bubble, but it is R1000K3 that is correct. It is simple physics. Lower gears multiply torque, but power (work over time) doesn't change.

And power is calculated from torque, right?

[R1000K3]

Originally Posted by edo

Your calculations aren't quite right.

Power @ 5250 is ~485 hp. Torque @ 5250 rpm is ~660 Nm, which is ~487 lbf-ft. 485-487=-2. That is zero, keeping in mind how we got the numbers @ 5250 rpm (from the graph).

FAIL

Another sleepless night?

Damn, I compared TQ from pull #1 with hp from pull #2 by mistake, my bad. Even the best can make a mistake Glad you caught it, thanks.

[edo]

Originally Posted by R1000K3

Damn, I compared TQ from pull #1 with hp from pull #2 by mistake, my bad. Even the best can make a mistake Glad you caught it, thanks.

It's your second time. First time 85whp difference, now different dyno runs

[R1000K3]

Originally Posted by edo

And power is calculated from torque, right?

Yes, but since torque on the wheel changes with gearing with the same value as rpm on the wheels changes in the opposite direction, hp on the wheels is the same for a given engine rpm.

[bamsefar]

Originally Posted by edo

Your calculations aren't quite right.

Power @ 5250 is ~485 hp. Torque @ 5250 rpm is ~660 Nm, which is ~487 lbf-ft. 485-487=-2. That is zero, keeping in mind how we got the numbers @ 5250 rpm (from the graph).

FAIL

Another sleepless night?

Well, I might fail to see the point in calculating 485 hp minus 487lbf-ft. You are comparing the wrong things I guess...

Sleepless ???

[edo]

Originally Posted by bamsefar

Well, I might fail to see the point in calculating 485 hp minus 487lbf-ft. You are comparing the wrong things I guess...

Sleepless ???

Great to see another guy from Sweden.

Ask a friend of yours, not me about HIS calculations.

[edo]

100 posts and more than 2.2k views in a day.

Keep it up, guys, and this thread will become A WORLD RECORD BREAKING TOPIC

[biz77]

Originally Posted by edo

And power is calculated from torque, right?

Which is more power:

100 ft. lbs of torque at 5,000 rpm

or

167 ft. lbs at 3,000 rpm

[scheherazade]

Originally Posted by Sniz

no reason to stop posting, the HP #'s are just quite high, everyone would love to believe they can put on the same mods and get the same #'s but so far that hasnt happened.

reminds of the days of Hotrod's 1/4 mile #'s on such 'limited' mods. Many people put on similar mods and trapped NOWHERE close.

something is up. not sure what.

You know, I thought about that back when he was showing off the amazing slips.

So much of launching an RWD car is slippage control.
You want to run on the fine edge of traction, where there is just the slightest amount of wheel slip, but no actual spin. And you need to hold that condition for as long as you have the torque for it (like threshold braking, but the opposite).

There's a lot of tenths to be had in the finest most minuscule amount of control at launch.

Some people just have that skill. There's a lot of records that were set with a car driven by not the owner, because the owner knew someone else just 'had it', and he didn't.

There are a lot of contributing factors, heat, track, etc.
But regardless, usually put two drivers in the same car, and one will consistently put down better times than the other.
And the consistency of which driver gets better times only gets more steady as the times approach the limit of what the car can do.

Hotrod definitely was ahead of the crowd.
I can't say that everything was legit or not, because I wasn't there.
But I can say that if he's an exceptionally good driver, then I can see him making us plebes look slow.

-scheherazade

[BrianMN]

Originally Posted by scheherazade

You know, I thought about that back when he was showing off the amazing slips.

So much of launching an RWD car is slippage control.
You want to run on the fine edge of traction, where there is just the slightest amount of wheel slip, but no actual spin. And you need to hold that condition for as long as you have the torque for it (like threshold braking, but the opposite).

There's a lot of tenths to be had in the finest most minuscule amount of control at launch.

Some people just have that skill. There's a lot of records that were set with a car driven by not the owner, because the owner knew someone else just 'had it', and he didn't.

There are a lot of contributing factors, heat, track, etc.
But regardless, usually put two drivers in the same car, and one will consistently put down better times than the other.
And the consistency of which driver gets better times only gets more steady as the times approach the limit of what the car can do.

Hotrod definitely was ahead of the crowd.
I can't say that everything was legit or not, because I wasn't there.
But I can say that if he's an exceptionally good driver, then I can see him making us plebes look slow.

-scheherazade

Woah, hello Left Field!

[cstmx_ryder]

We all know that 439 hp with your mods is IMPOSSIBLE! Yeah I said it, didn't stutter either........

385 hp seems more like it, and I think the OP finally realized it as well, no matter how you slice the pie.

Please close this thread, I'm tired of laughing my @ss to sleep every night reading this......LOL!!

[jblackwell]

Originally Posted by BrianMN

Woah, hello Left Field!

[Jeff@TopGearSolutions]

LOl 5 star thread

[jblackwell]

[cn555ic]

Originally Posted by jblackwell

That just aint right!

[pentaxis]

Wonder if the OP's bandwidth tests in his sig are an anomaly too... LOL

[edo]

Originally Posted by pentaxis

Wonder if the OP's bandwidth tests in his sig are an anomaly too... LOL

Guess wich country is the 2nd-3rd (changes from time to time) in the WORLD in terms of internet speed
http://www.speedtest.net/global.php#0

[edo]

Originally Posted by cstmx_ryder

Please close this thread, I'm tired of laughing my @ss to sleep every night reading this......LOL!!

I'm sure you don't even suspect how "funny" you are
JUST DON'T READ IT. As simple as it is.

Originally Posted by jblackwell

I'm not interested in your family pictures, sorry. Wrong thread, wrong forum