My friend doesn't believe me about Audi's.
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1st Gear
Joined: Jul 2007
Posts: 72
From:
RE: My friend doesn't believe me about Audi's.
hey so i gave him the link to the thread, i guess it didnt work, so he emailed me back with how horsepower works.
the link didnt work but let me just explain how
horsepower works, horsepower increases when the
air-fuel mixtures increases, which is why a air intake
makes more horsepower, which is why a turbo, forced
induction of air, adds horsepower because it lets more
fuel in the engine. so why would a ecu upgrade
increase horsepower at the wheels, which doesnt
technically do either? Chipping, flashing, tuning the
car make sense only if you have modified your car and
need to have the car turned for the modifications you
have done to the car. and this is from a website that
talks about pros and cons of upgrades-
simple example would be; say that you do some exhaust
mods. (intake, header, hf cat, and catback) Those
things will increase in amount of air being sucked
into the engine, therefore you would want to tune the
car...meaning, chipping, flashing, tuning the car on
dyno/street to change the mapping in ecu so that you
can optimize the amount of fuel to meet the increase
in air which was caused by the exhaust mods.
* so because you dont have an aftermarket exhaust or
turbo u wont gain anythinfg at the wheeels and will
end up having to get it re-flashed anyway sooo get an exhaust.
horsepower works, horsepower increases when the
air-fuel mixtures increases, which is why a air intake
makes more horsepower, which is why a turbo, forced
induction of air, adds horsepower because it lets more
fuel in the engine. so why would a ecu upgrade
increase horsepower at the wheels, which doesnt
technically do either? Chipping, flashing, tuning the
car make sense only if you have modified your car and
need to have the car turned for the modifications you
have done to the car. and this is from a website that
talks about pros and cons of upgrades-
simple example would be; say that you do some exhaust
mods. (intake, header, hf cat, and catback) Those
things will increase in amount of air being sucked
into the engine, therefore you would want to tune the
car...meaning, chipping, flashing, tuning the car on
dyno/street to change the mapping in ecu so that you
can optimize the amount of fuel to meet the increase
in air which was caused by the exhaust mods.
* so because you dont have an aftermarket exhaust or
turbo u wont gain anythinfg at the wheeels and will
end up having to get it re-flashed anyway sooo get an exhaust.
Site Moderator
Joined: Aug 2004
Posts: 4,356
From: Jersey (orig. NorCal)
RE: My friend doesn't believe me about Audi's.
the link didnt work but let me just explain how
horsepower works, horsepower increases when the
air-fuel mixtures increases, which is why a air intake
makes more horsepower, which is why a turbo, forced
induction of air, adds horsepower because it lets more
fuel in the engine. so why would a ecu upgrade
increase horsepower at the wheels, which doesnt
technically do either? Chipping, flashing, tuning the
car make sense only if you have modified your car and
need to have the car turned for the modifications you
have done to the car. and this is from a website that
talks about pros and cons of upgrades-
simple example would be; say that you do some exhaust
mods. (intake, header, hf cat, and catback) Those
things will increase in amount of air being sucked
into the engine, therefore you would want to tune the
car...meaning, chipping, flashing, tuning the car on
dyno/street to change the mapping in ecu so that you
can optimize the amount of fuel to meet the increase
in air which was caused by the exhaust mods.
* so because you dont have an aftermarket exhaust or
turbo u wont gain anythinfg at the wheeels and will
end up having to get it re-flashed anyway sooo get an exhaust.
horsepower works, horsepower increases when the
air-fuel mixtures increases, which is why a air intake
makes more horsepower, which is why a turbo, forced
induction of air, adds horsepower because it lets more
fuel in the engine. so why would a ecu upgrade
increase horsepower at the wheels, which doesnt
technically do either? Chipping, flashing, tuning the
car make sense only if you have modified your car and
need to have the car turned for the modifications you
have done to the car. and this is from a website that
talks about pros and cons of upgrades-
simple example would be; say that you do some exhaust
mods. (intake, header, hf cat, and catback) Those
things will increase in amount of air being sucked
into the engine, therefore you would want to tune the
car...meaning, chipping, flashing, tuning the car on
dyno/street to change the mapping in ecu so that you
can optimize the amount of fuel to meet the increase
in air which was caused by the exhaust mods.
* so because you dont have an aftermarket exhaust or
turbo u wont gain anythinfg at the wheeels and will
end up having to get it re-flashed anyway sooo get an exhaust.
More air and fuel = more power. Chips increase the efficiency of the air/fuel mixture. They do not increase the actual air/fuel mixture. That could lead to catastrophic engine failure (aka TomRitt). They can't change the amount of air coming in unless it's forced induction and you still have to turn up the pressure to get more boost pressure. On a NA car, the chip can only adjust the timing and fuel. Over stock, most NA cars will only gain about 15hp at the crank. On forced induction cars, the tuning program can double boost pressure as well as the fuel and ignition timing. Since you can increase the amount air and adjust the fuel and timing, you get much more from a forced induction tune over a NA tune. Most A4 tunes get 40hp and 60ftlbs over stock and S4's with their twin turbos get 50 hp and around 80 ft lbs over stock. If the turbo/supercharger is already at maximum efficiency from the factory (doubtful), the gains will be closer to a NA tune.
Crap, I'm late for work. To be continued.
Site Moderator
Joined: Aug 2004
Posts: 4,356
From: Jersey (orig. NorCal)
RE: My friend doesn't believe me about Audi's.
Round 2.
hp increase when the air and fuel volume increases efficiently
Some air intakes add more because they are less restrictive than the stock airbox.
Forced induction only adds air. If you just throw a monster turbo or supercharger onto a car, the air/fuel mixture will lean out and the motor will go bye bye. ECU upgrades account for the extra air by increasing the amount of fuel, keeping the air/fuel ratio in check.
In many cases this is true. However, many forced induction cars are not tuned for power, they're tuned for fuel efficiency.
do you have the link?
Those increase the exhaust flow.
It's true that you do want the tune to match your mods. I've never heard of an exhaust requiring a chip.
What? It's been proven on many dynos all over that stock tuning can be improved upon with all the stock components.
That is all for now.
horsepower increases when the air-fuel mixtures increases
which is why a air intake makes more horsepower, which is why a turbo, forced induction of air, adds horsepower because it lets more fuel in the engine. so why would a ecu upgrade increase horsepower at the wheels, which doesnt technically do either?
Forced induction only adds air. If you just throw a monster turbo or supercharger onto a car, the air/fuel mixture will lean out and the motor will go bye bye. ECU upgrades account for the extra air by increasing the amount of fuel, keeping the air/fuel ratio in check.
Chipping, flashing, tuning the car make sense only if you have modified your car and need to have the car turned for the modifications you have done to the car.
this is from a website that talks about pros and cons of upgrades- simple example would be; say that you do some exhaust mods.
(intake, header, hf cat, and catback) Those things will increase in amount of air being sucked into the engine,
therefore you would want to tune the car...meaning, chipping, flashing, tuning the car on dyno/street to change the mapping in ecu so that you can optimize the amount of fuel to meet the ncrease in air which was caused by the exhaust mods.
* so because you dont have an aftermarket exhaust or turbo u wont gain anythinfg at the heeels and will end up having to get it re-flashed anyway sooo get an exhaust.
That is all for now.
Senior Member
Joined: Jun 2006
Posts: 367
From:
RE: My friend doesn't believe me about Audi's.
Quote from car domain: " Thats all very nice, and whats cooler than that? I'll tell you man, this car is in 2 Fast 2 furious!
If you wanna know what part it was in, no it wasnt when all those modified cars came out of the shop, its in the beginning when they must race to a ferrari in impound. Yea this puppy is fast"
Fast lol looks like he wasent able to beat those really fast stock A4's. all i know its the movies arnt reality and i also know this car is prob a 323 or 325 that is Riced out to hell [:'(]
If you wanna know what part it was in, no it wasnt when all those modified cars came out of the shop, its in the beginning when they must race to a ferrari in impound. Yea this puppy is fast"
Fast lol looks like he wasent able to beat those really fast stock A4's. all i know its the movies arnt reality and i also know this car is prob a 323 or 325 that is Riced out to hell [:'(]
1st Gear
Joined: Apr 2007
Posts: 335
From:
RE: My friend doesn't believe me about Audi's.
Not to mention you friend is terrible with photshop. That speedo pic is hilarious, if you are going to tyr and claim something at least take your time on the chop to make look real. He sounds like the definition of a ricer that had the money to buy a car he doesn't deserve. Sorry to rip on your friend but it is just my opinion
1st Gear
Joined: Sep 2007
Posts: 55
From:
RE: My friend doesn't believe me about Audi's.
ORIGINAL: BaconBait
My turn.
More air and fuel = more power. Chips increase the efficiency of the air/fuel mixture. They do not increase the actual air/fuel mixture. That could lead to catastrophic engine failure (aka TomRitt). They can't change the amount of air coming in unless it's forced induction and you still have to turn up the pressure to get more boost pressure. On a NA car, the chip can only adjust the timing and fuel. Over stock, most NA cars will only gain about 15hp at the crank. On forced induction cars, the tuning program can double boost pressure as well as the fuel and ignition timing. Since you can increase the amount air and adjust the fuel and timing, you get much more from a forced induction tune over a NA tune. Most A4 tunes get 40hp and 60ftlbs over stock and S4's with their twin turbos get 50 hp and around 80 ft lbs over stock. If the turbo/supercharger is already at maximum efficiency from the factory (doubtful), the gains will be closer to a NA tune.
Crap, I'm late for work. To be continued.
My turn.
More air and fuel = more power. Chips increase the efficiency of the air/fuel mixture. They do not increase the actual air/fuel mixture. That could lead to catastrophic engine failure (aka TomRitt). They can't change the amount of air coming in unless it's forced induction and you still have to turn up the pressure to get more boost pressure. On a NA car, the chip can only adjust the timing and fuel. Over stock, most NA cars will only gain about 15hp at the crank. On forced induction cars, the tuning program can double boost pressure as well as the fuel and ignition timing. Since you can increase the amount air and adjust the fuel and timing, you get much more from a forced induction tune over a NA tune. Most A4 tunes get 40hp and 60ftlbs over stock and S4's with their twin turbos get 50 hp and around 80 ft lbs over stock. If the turbo/supercharger is already at maximum efficiency from the factory (doubtful), the gains will be closer to a NA tune.
Crap, I'm late for work. To be continued.
1st Gear
Joined: Mar 2007
Posts: 225
From:
RE: My friend doesn't believe me about Audi's.
ORIGINAL: sdboarder84
Not to mention you friend is terrible with photshop. That speedo pic is hilarious, if you are going to tyr and claim something at least take your time on the chop to make look real. He sounds like the definition of a ricer that had the money to buy a car he doesn't deserve. Sorry to rip on your friend but it is just my opinion
Not to mention you friend is terrible with photshop. That speedo pic is hilarious, if you are going to tyr and claim something at least take your time on the chop to make look real. He sounds like the definition of a ricer that had the money to buy a car he doesn't deserve. Sorry to rip on your friend but it is just my opinion
1st Gear
Joined: Feb 2007
Posts: 481
From: Boulder, CO
RE: My friend doesn't believe me about Audi's.
do me a favor and send your buddy withthe "Wicked fast and Wicked furious" rice burner this link,(link was here) i think i will do a better job explaining HP than he did.
edit- Link contained trojans.
edit- Link contained trojans.