98.5' Audi A4 1.8TQM - 55k miles best chip?
05-06-2003, 07:30 AM
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98.5' Audi A4 1.8TQM - 55k miles best chip?
98.5' Audi A4 1.8TQM - 55k miles on it .. K&N air filter is the only mod so it is pretty much stock..What would be the best chip to get being on a budget?
I was thinking about the neuspeed chip as it is about 200$ cheaper than most other chips such as the GIAC or APR Chips
And whats the difference between the .8 and the 1.0 BAR if I was going to go through NEU Speed
I was thinking about the neuspeed chip as it is about 200$ cheaper than most other chips such as the GIAC or APR Chips
And whats the difference between the .8 and the 1.0 BAR if I was going to go through NEU Speed
05-06-2003, 07:53 AM
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No 1 bar will not mess up the car, .8 bar is about what the stock 2001 comes at.
that will only get you to about 170-180 hp, not all that much of a gain from 150.
Adding a chip to your car will increase your fwy mpg since the stock chip tends to run a bit on the rich side and the aftermarket chips lean it out a little even during off boost driving.
Adding a chip to your car will increase your fwy mpg since the stock chip tends to run a bit on the rich side and the aftermarket chips lean it out a little even during off boost driving.
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05-06-2003, 08:05 AM
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Not necessarily... (more)
The short answer is simply that a 1 BAR chip creates/allows higher boost pressure: 25% higher boost pressure than the .8 BAR.
The longer explaination:
BAR is simply a measure of pressure, like PSI or atmospheres. 1 BAR is approx. equal to 1 atmosphere, or the normal atmospheric pressure at sea level. Thus a 1 BAR chip will effectively double the pressure relative to a non-aspirated engine. A .8 BAR chip will only increase the boost pressure to +80% (relative to outside air pressure).
1 BAR = 15 PSI whereas .8 BAR = 12 PSI
Off the top of my head, I'm not sure what the stock chip allows, but I'm sure someone here does.
So, by having higher boost pressure, you're stressing various parts of your engine more. Most people, however, are of the firm belief that the 1.8T is plenty robust to handle the pressure increase.
The longer explaination:
BAR is simply a measure of pressure, like PSI or atmospheres. 1 BAR is approx. equal to 1 atmosphere, or the normal atmospheric pressure at sea level. Thus a 1 BAR chip will effectively double the pressure relative to a non-aspirated engine. A .8 BAR chip will only increase the boost pressure to +80% (relative to outside air pressure).
1 BAR = 15 PSI whereas .8 BAR = 12 PSI
Off the top of my head, I'm not sure what the stock chip allows, but I'm sure someone here does.
So, by having higher boost pressure, you're stressing various parts of your engine more. Most people, however, are of the firm belief that the 1.8T is plenty robust to handle the pressure increase.