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View Poll Results: Who won the debate: MK (HP) or VR (Torque)
Mk won with a simple to understand concept that HP determines torque at the wheels at any speed.
25
17.48%
MK won: When comparing equal HP cars, the one with less torque COULD be better on the road course.
6
4.20%
VR won: When comparing equal HP cars, the one with more torque is better on a road course.
44
30.77%
Neither, as physics dont apply to race cars
18
12.59%
I don't want to open this can of worms again!
50
34.97%
Voters: 143. You may not vote on this poll

Poll: Who won the HP vs Torque debate?

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Old 03-19-2009, 03:30 PM
  #331  
Bob Rouleau

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Hacker, your graph is missing THE KEY component. Please add the curve showing the effects of a Type R sticker!
Old 03-19-2009, 03:35 PM
  #332  
onefastviking
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[QUOTE=Rassel;6397800[/QUOTE]


Where did you get the Swedish flag in your signiture ? I like it !

My father was born and raised in Stockholm and I still have many relatives that live in Sweden.


Old 03-19-2009, 03:35 PM
  #333  
mark kibort
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e36 euro 3.2 motor at the heart?

Nice

Originally Posted by Bryan Watts
Y-axis is private. I don't want my competitors to be embarrassed when they find out just how little power we have.

Green is a conservative full power tune. Blue is a rain tune. Red is a tune for a specific power/weight class.
Old 03-19-2009, 03:38 PM
  #334  
Bryan Watts
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Originally Posted by mark kibort
e36 euro 3.2 motor at the heart?
S54. Much better motor.
Old 03-19-2009, 03:42 PM
  #335  
2BWise
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After looking at the green tune its pretty apparent that your BMW never sees any time below 4k rpm. Is that big wiggle due to the car oscillating on the dyno?
Old 03-19-2009, 03:45 PM
  #336  
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Thats why this discussion is so good. Bryan would never spend any time below 5500rpm, right bryan?? remember you want to maximize HP not torque at any and all speeds.

mk

Originally Posted by 2BWise
After looking at the green tune its pretty apparent that your BMW never sees any time below 4k rpm. Is that big wiggle due to the car oscillating on the dyno?
Old 03-19-2009, 03:47 PM
  #337  
jgrant
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Originally Posted by Bryan Watts
S54. Much better motor.
More torque, eh?
Old 03-19-2009, 03:48 PM
  #338  
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Then, you do get it now! good!

what did you think of the two equal HP, disparate torque engine curves?

see how the lower torque engine can make more rear wheel torque at any rpm now?

Mk


Originally Posted by 2BWise
If the shape of the curve is the same then I do agree that you can produce the same rear wheel torque, but I can't quite wrap my around the viability of ever trying to empirically prove this. I can't come up with a solution that would make this possible. Theoretically it works but I'm not sure this is physically possible. Having two engines with identical shaped curves over different rev ranges, no way.
Old 03-19-2009, 03:50 PM
  #339  
ew928
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I find there's lots of power under these curves.








PS. I think, I'm not sure, but when MK says lower torque or higher torque he doesn't mean an engine that actually has lower torque or higher overall torque numbers. But where the majority of the torque is produced by the motor at certain revs. I think.
Maybe.
More overall torque. For longer rev range. More good.
Old 03-19-2009, 03:50 PM
  #340  
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Originally Posted by Bob Rouleau
Hacker, your graph is missing THE KEY component. Please add the curve showing the effects of a Type R sticker!
Damn it - I have to re-do it again!!!
Old 03-19-2009, 03:51 PM
  #341  
Rassel
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Originally Posted by onefastviking
Where did you get the Swedish flag in your signiture ? I like it !

My father was born and raised in Stockholm and I still have many relatives that live in Sweden.


Figured the "Viking" part had something to do with it.
Flag is just something I googled and added in sig.

If you like engines and visit Stockholm. You should pay Micke Svens a visit. http://www.spezialmotorer.com/

Old 03-19-2009, 03:51 PM
  #342  
Bryan Watts
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Originally Posted by 2BWise
After looking at the green tune its pretty apparent that your BMW never sees any time below 4k rpm. Is that big wiggle due to the car oscillating on the dyno?
We spend a little time below there in the slowest corners, but that's just those the breaks when you've gotta use an OEM transmission. We ran a 6-speed in the past with a much higher rear gear that gave us 4 usuable gears rather than 3, but the pinion gear of the higher rear diff failed on us twice, so we went back to the lighter 5-speed.

I assume the wiggle is the car moving...I wasn't there when the car was being tuned.
Old 03-19-2009, 03:57 PM
  #343  
Bryan Watts
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Originally Posted by jgrant
More torque, eh?
Much better head.
Old 03-19-2009, 03:59 PM
  #344  
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why?

Originally Posted by Bryan Watts
S54. Much better motor.
Old 03-19-2009, 04:03 PM
  #345  
Bryan Watts
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See above. Because technology = good. Believe it or not, BMW makes improvements as they go.


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