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importance of and improving power curve

General engine tech -- Drag Racing to Circle Track

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gmrocket
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Re: importance of and improving power curve

Post by gmrocket » Fri Nov 08, 2019 1:14 pm

CGT wrote:
Fri Nov 08, 2019 11:00 am
randy331 wrote:
Sat Nov 02, 2019 12:45 pm
A pull where more power anywhere from 2500-8500+ rpm would have helped.
Well since ST seems to be experiencing low traffic flow or low interest flow....I'll ask.. what changes need to be made to improve power over a 6000rpm wide range? :lol: :lol: Nitrous? :D
That's even wider than an EMC engine,,I read on ST before nobody ever runs an Engine over that range,, it's stoopid 😉

CGT
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Re: importance of and improving power curve

Post by CGT » Fri Nov 08, 2019 1:51 pm

gmrocket wrote:
Fri Nov 08, 2019 1:14 pm
I read on ST before nobody ever runs an Engine over that range,, it's stoopid
Does the person that said that suck at it? :lol:
"Never let your hobby ride you. Work while you work and play while you play"

"Hobbies are a contradiction; they take work and turn it into leisure, and take leisure and turn it into work."

gmrocket
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Re: importance of and improving power curve

Post by gmrocket » Fri Nov 08, 2019 5:14 pm

CGT wrote:
Fri Nov 08, 2019 1:51 pm
gmrocket wrote:
Fri Nov 08, 2019 1:14 pm
I read on ST before nobody ever runs an Engine over that range,, it's stoopid
Does the person that said that suck at it? :lol:
Ohh ya...

cjperformance
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Re: importance of and improving power curve

Post by cjperformance » Fri Nov 08, 2019 6:50 pm

CGT wrote:
Fri Nov 08, 2019 11:00 am
randy331 wrote:
Sat Nov 02, 2019 12:45 pm
A pull where more power anywhere from 2500-8500+ rpm would have helped.
Well since ST seems to be experiencing low traffic flow or low interest flow....I'll ask.. what changes need to be made to improve power over a 6000rpm wide range? :lol: :lol: Nitrous? :D
Ha yes n2o !! I like it.
Efficiency of "everything". I know pretty much nothing about pulling trucks, my best take on this sport is that it is all about being able to keep the rpm above peak Hp rpm, once you are loaded and dip below peak Hp rpm you are inevitably doomed and rpm will be pulled down to a point where the engine basically just stops. I say efficiency because brute HP is not the hardest thing to produce but high rpm Hp and low rpm Hp/Tq efficiency dont typically go hand in hand. I would think that carb calibration and sizing play a huge role here, once rpm/airflow becomes lower and the carb cant meter as well then you're fighting a losing battle. Intake system size and flow V CSA another huge factor and so on. I couldnt pick one single magic factor, i dont think that would exist. Everything just has to be perfect. Even if peak Hp remained the same, i would bet that just holding 1 or 2 hp more everywhere past peak and below peak would be a bonus in this sport(and most).
Craig.

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Re: importance of and improving power curve

Post by randy331 » Sat Nov 09, 2019 12:04 am

cjperformance wrote:
Fri Nov 08, 2019 6:50 pm
I say efficiency because brute HP is not the hardest thing to produce but high rpm Hp and low rpm Hp/Tq efficiency dont typically go hand in hand.
This is true, and part of the decisions we must make.
Not much your gonna do that will add power all the way from 2500- 9500.

Randy

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Re: importance of and improving power curve

Post by econo racer » Sat Nov 09, 2019 9:53 am

It sounds like a comp eliminator 283 :shock: =D> I would not change a thing. I thought he was gonna drag that sled out the gate =D> Motor sounds like music :D

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