Question about engine displacement
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Melting Slicks
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From: Sarcasm. Just one of the many services I offer.
Question about engine displacement
5.7 liters seems like alot...how is is that newer cars with alot less capacity than that put out more HP?
Pro
Joined: Sep 2003
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From: charlotte nc
Originally Posted by ir0nmaiden420
5.7 liters seems like alot...how is is that newer cars with alot less capacity than that put out more HP?
Thread Starter
Melting Slicks
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From: Sarcasm. Just one of the many services I offer.
Is there a formula or something to figure out how much potential your engine has based on its capacity, so you can figure out a way to make the most of all 5.7 liters?
Team Owner
Joined: Aug 2000
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From: San Pedro CA
there are formula's for everything... but you have to take into consideration volumetric and thermal effiency... they are never at 100%.
oh, and turbo chargers are the great equalizer of cubic inches. Force feed that puppy!!!
Back in the mid-80s, when the turbo era reigned supreme in Formula 1, they were running 1.5 litre V6s with God-only-knows how much boost, and getting upwards of 1500hp!!!! I donno remember what the torque numbers were like, but they were serious.
oh, and turbo chargers are the great equalizer of cubic inches. Force feed that puppy!!!
Back in the mid-80s, when the turbo era reigned supreme in Formula 1, they were running 1.5 litre V6s with God-only-knows how much boost, and getting upwards of 1500hp!!!! I donno remember what the torque numbers were like, but they were serious.
Race Director
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From: Everyday you must choose between the pain of discipline and the pain of regret. Fredericktown, OH
Today's cars are getting to be ultra efficient, heads, induction, cam profiles, exhaust, ignition, everything is nearly better engineered than it was 35 years ago. All this makes it possible to make more with less.
It wasn't that long ago that a 400hp motor was a lot in a race car, now there are quite a few full warranty'd cars in production with that kind of power.
Technology is amazing.
And as said, turbos and superchargers do help the smaller ci stuff quite a bit.
It wasn't that long ago that a 400hp motor was a lot in a race car, now there are quite a few full warranty'd cars in production with that kind of power.
Technology is amazing.
And as said, turbos and superchargers do help the smaller ci stuff quite a bit.
Team Owner
Joined: Sep 2001
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
because of better intake and head designs, and better fuel delivery/timing systems
there are no formulas that are on solid enough ground that I would believe them, mostly engineers' 'rules of thumb'
there are no formulas that are on solid enough ground that I would believe them, mostly engineers' 'rules of thumb'
Le Mans Master
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From: If you read this, you'll go blind
Well, you can get about 8000HP out of a 426cu in motor. I'd say about 7.0L.
Top Fuel
Top Fuel dragsters are the fastest-accelerating vehicles in the world. The 25-foot landlocked missiles can cover the quarter-mile in 4.4 seconds at speeds in excess of 330 mph. The engine of choice for most teams is an aluminum version of the famed 426 Chrysler Hemi. These supercharged, fuel-injected, nitromethane-burning engines produce an estimated 8,000 horsepower.
Top Fuel dragsters are the fastest-accelerating vehicles in the world. The 25-foot landlocked missiles can cover the quarter-mile in 4.4 seconds at speeds in excess of 330 mph. The engine of choice for most teams is an aluminum version of the famed 426 Chrysler Hemi. These supercharged, fuel-injected, nitromethane-burning engines produce an estimated 8,000 horsepower.
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Drifting
Joined: Feb 2004
Posts: 1,485
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From: Champaign, IL
St. Jude Donor '05
My last car which I just sold was a Porsche 944 turbo (stock 2.5 liter 4 cyl) - I was smoking C4 corvettes on a regular basis, even from a 70 or 80 mph rolling start I'd pull away strong. Come to find out my blow off valve and wastegate were screwed up and I was running tons of boost. 
That car had wicked torque.
That car had wicked torque.
Large Impressive Member
Joined: Jul 2003
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by NeedSpeed
Well, you can get about 8000HP out of a 426cu in motor. I'd say about 7.0L.
Top Fuel dragsters are the fastest-accelerating vehicles in the world. The 25-foot landlocked missiles can cover the quarter-mile in 4.4 seconds at speeds in excess of 330 mph. The engine of choice for most teams is an aluminum version of the famed 426 Chrysler Hemi. These supercharged, fuel-injected, nitromethane-burning engines produce an estimated 8,000 horsepower.
Top Fuel dragsters are the fastest-accelerating vehicles in the world. The 25-foot landlocked missiles can cover the quarter-mile in 4.4 seconds at speeds in excess of 330 mph. The engine of choice for most teams is an aluminum version of the famed 426 Chrysler Hemi. These supercharged, fuel-injected, nitromethane-burning engines produce an estimated 8,000 horsepower.
