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Peak Power vs Broad Power Curve(1/4 mile)

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Old 06-05-2009, 05:45 PM
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Default Peak Power vs Broad Power Curve(1/4 mile)

I know what Torque and HP both are...and the theory that you can predict a cars 1/4 mile time with its rated Peak HP and weight of the vehicle...ET=6.29(weight/hp).I am not sure if that formula is accurate...because wouldnt it be more beneficial to have a car with a very broad torque curve and a little less peak power compared to a car with say higher peak power with a very narrow power curve???

Last edited by lovescamaros28; 06-05-2009 at 06:10 PM.
Old 06-05-2009, 06:16 PM
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This has the beginnings of a 500 post 50000 view thread. The age old argument hp vs tq but this time on the track.......


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Old 06-05-2009, 06:21 PM
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Possibly(lol).Here is an article...I think that sums it up best.Wide Curve is more important than peak power.http://stockcarscience.com/blog/index.php?cat=94

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Old 06-05-2009, 06:35 PM
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Another interesting one by HotRodhttp://www.hotrod.com/techarticles/h...urve_area.html
Old 06-05-2009, 09:49 PM
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Doesn't matter when most track dedicated cars (auto) are either stalled and or stalled/geared to the hilt and launch off of a T-brake.

Now, on the street from light to light, obviously the broad power curve will shine but only so much. We aren't talking about Supras with a 1k RPM power band. Eventually, if the race goes on long enough, the car with more peak power is going to pull by (so long as the lead wasn't greyhound bus lengths).

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Old 06-06-2009, 10:06 AM
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Originally Posted by lilbuddy1587
Doesn't matter when most track dedicated cars (auto) are either stalled and or stalled/geared to the hilt and launch off of a T-brake.

JMO
Yep that adds far to many factors to try and predict with any equation.
Old 06-07-2009, 06:14 PM
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Originally Posted by lilbuddy1587
Doesn't matter when most track dedicated cars (auto) are either stalled and or stalled/geared to the hilt and launch off of a T-brake.

Now, on the street from light to light, obviously the broad power curve will shine but only so much. We aren't talking about Supras with a 1k RPM power band. Eventually, if the race goes on long enough, the car with more peak power is going to pull by (so long as the lead wasn't greyhound bus lengths).

JMO
Good point.If you are launching with a transbrake...it is going to be a whole different story since you are typically launching around peak TQ.I think you summed it up pretty well there.

Last edited by lovescamaros28; 06-07-2009 at 06:21 PM.




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