How come the max feels fastrer when...
01-02-2002, 06:22 PM
#6
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yeah i belive thats what he means, i had the same question.. look here:
http://forums.maxima.org/showthread....threadid=79907
http://forums.maxima.org/showthread....threadid=79907
01-02-2002, 07:23 PM
#7
Kevlo for President
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Originally posted by nixima
I think he meant that the car appears to be faster when the gas pedal is pressed gradually, as the rpm rises, rather than wide-open throttle.
I think he meant that the car appears to be faster when the gas pedal is pressed gradually, as the rpm rises, rather than wide-open throttle.
ya that is it......sorry
BTW link doesn't tell much
01-03-2002, 07:59 AM
#8
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Join Date: Aug 2000
Posts: 577
It is all dependent of flow velocity at various RPMs. AIR VELOCITY is what generates good intake power and therefore more horsepower potential.
With the throttle partially closes, a smaller volume but higher velocity of air can get into the intake runners.
Here is a good analogy: Take a garden hose with a gentle stream of water and then put your finger over part of the opening... the water suddenly leaves the hose with higher velocity.
Also depends whether its an automatic or manual tranny.
Dumping a lot of power into the automatic tranny off the line just makes the converter slip at wide ratios which rapidly builds up heat. The stall speed might be around 3000RPMs and will hold those RPMs until the road speed catches up. Unfortunately, the wider the slip ratio, the lower the mechanical efficiency.
So therefore, flooring the accelerator in an automatic doesn't do any good and actually slows down the initial acceleration.
With the throttle partially closes, a smaller volume but higher velocity of air can get into the intake runners.
Here is a good analogy: Take a garden hose with a gentle stream of water and then put your finger over part of the opening... the water suddenly leaves the hose with higher velocity.
Also depends whether its an automatic or manual tranny.
Dumping a lot of power into the automatic tranny off the line just makes the converter slip at wide ratios which rapidly builds up heat. The stall speed might be around 3000RPMs and will hold those RPMs until the road speed catches up. Unfortunately, the wider the slip ratio, the lower the mechanical efficiency.
So therefore, flooring the accelerator in an automatic doesn't do any good and actually slows down the initial acceleration.
01-03-2002, 08:24 AM
#9
Senior Member
Join Date: Sep 2000
Location: NJ
Posts: 5,630
Originally posted by chris j vurnis
It is all dependent of flow velocity at various RPMs. AIR VELOCITY is what generates good intake power and therefore more horsepower potential.
With the throttle partially closes, a smaller volume but higher velocity of air can get into the intake runners.
Here is a good analogy: Take a garden hose with a gentle stream of water and then put your finger over part of the opening... the water suddenly leaves the hose with higher velocity.
Also depends whether its an automatic or manual tranny.
Dumping a lot of power into the automatic tranny off the line just makes the converter slip at wide ratios which rapidly builds up heat. The stall speed might be around 3000RPMs and will hold those RPMs until the road speed catches up. Unfortunately, the wider the slip ratio, the lower the mechanical efficiency.
So therefore, flooring the accelerator in an automatic doesn't do any good and actually slows down the initial acceleration.
It is all dependent of flow velocity at various RPMs. AIR VELOCITY is what generates good intake power and therefore more horsepower potential.
With the throttle partially closes, a smaller volume but higher velocity of air can get into the intake runners.
Here is a good analogy: Take a garden hose with a gentle stream of water and then put your finger over part of the opening... the water suddenly leaves the hose with higher velocity.
Also depends whether its an automatic or manual tranny.
Dumping a lot of power into the automatic tranny off the line just makes the converter slip at wide ratios which rapidly builds up heat. The stall speed might be around 3000RPMs and will hold those RPMs until the road speed catches up. Unfortunately, the wider the slip ratio, the lower the mechanical efficiency.
So therefore, flooring the accelerator in an automatic doesn't do any good and actually slows down the initial acceleration.
The car def reacts way better when you gradually press teh gas vs just going right to WOT. This is the technique i use on stree & drag strip.
01-03-2002, 09:42 AM
#10
I noticed this many times, the car sounds nice and mean when you do the 3/4 throttle to me. I was wondering what happened when he took off from a roll and I waited a second before I caught some air. BTW, would this type of technique help with a hot air Intake?
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