Running Pacesetters/catted y with no tune...
I've had a tune in the past so I'm not running a stock tune. Sense I put the headers on I have not had in re-tuned...Didn't seem ALOT faster but I did notice a nasty 3rd gear scratch afterwards that wasn't there before the headers. This is with brand new tires too.
So I guess that means I got some more power?
So I guess that means I got some more power?
When we talk about header install "tune" isn't the air/fuel ratio the most important part? That's all I would get done. Am I missing something?
Last edited by omcar; Jan 12, 2009 at 07:43 AM.
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As I've told people in the past - When I was running headers and stock tune, the car ran faster at 90% throttle than it did at WOT (open loop)
For those of you running no tune, give it a try, you might be suprised!
For those of you running no tune, give it a try, you might be suprised!
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LOL, man I'm running my entire set-up on a stock tune & intake right now. Have been for well over a year too without a single issue. Can is definetly running rich & I know I'm leaving power on the table but as far as daily driving & playin around it's been fine. Hasn't fouled a O2 sensor yet either.
I wouldn't spend money on a tune until you at least put a cam in unless you only plan on full bolt-ons without crackin the engine open. But even then I'd wait till it was full bolt-ons before getting a tune. Otherwise under that logic you'll need to keep goin back to have the tune tweaked for every other mod.
I wouldn't spend money on a tune until you at least put a cam in unless you only plan on full bolt-ons without crackin the engine open. But even then I'd wait till it was full bolt-ons before getting a tune. Otherwise under that logic you'll need to keep goin back to have the tune tweaked for every other mod.
LOL, man I'm running my entire set-up on a stock tune & intake right now. Have been for well over a year too without a single issue. Can is definetly running rich & I know I'm leaving power on the table but as far as daily driving & playin around it's been fine. Hasn't fouled a O2 sensor yet either.
I wouldn't spend money on a tune until you at least put a cam in unless you only plan on full bolt-ons without crackin the engine open. But even then I'd wait till it was full bolt-ons before getting a tune. Otherwise under that logic you'll need to keep goin back to have the tune tweaked for every other mod.
I wouldn't spend money on a tune until you at least put a cam in unless you only plan on full bolt-ons without crackin the engine open. But even then I'd wait till it was full bolt-ons before getting a tune. Otherwise under that logic you'll need to keep goin back to have the tune tweaked for every other mod.
Good thing that hasn't happened to me yet, LOL. Hell even if I was to get outrun by a car I should have beat I wouldn't lean on that as a excuse. Although I know some out there that would do this.
This was the point I was getting at. I'd only suggest getting it tuned after bolt-ons if thats as far as you plan to go with it. Otherwise your gonna have a fourtune in tune money tied up in the car probably even more than you have spent on actual motor mods.
I'm sure need is defined slightly different based on who your asking. Paying someone to tune your car for a few horsepower difference might not be worth it.
Sometime people get headers and cam at the same time. Some get headers and plane to get cam soon after. Then years go by and they still plan on getting a cam soon.
So all that time that you been riding around with untuned headers you car has been running rich as **** wasting all kind of gas. The extra money that you would have saved on gas could have went towards the tune and you would have had a little more power to boot.
I would recommend buying tuning software and a good wideband and tuning it yourself everytime you change something. For roughly $1000 you can have the very best stuff, which I also recommend. Go in half with a friend or a few friends to get the price down.
You could get it dyno tuned a lot for that kind of money, but it'll never be as good as what you can do yourself. Because they're not gonna spend the time on it that you can spend yourself.
I would get it before getting any big mods so you can learn as you go. Then once you know the software pretty good, you can start charging people to tune there stuff and get your money back. Or at least some of it.
And lastly I don't think that the OP mentioned what transmission he has. If he has an A4 without a stall then headers are a waste of money, tuned or not.
Jon
Sometime people get headers and cam at the same time. Some get headers and plane to get cam soon after. Then years go by and they still plan on getting a cam soon.
So all that time that you been riding around with untuned headers you car has been running rich as **** wasting all kind of gas. The extra money that you would have saved on gas could have went towards the tune and you would have had a little more power to boot.
I would recommend buying tuning software and a good wideband and tuning it yourself everytime you change something. For roughly $1000 you can have the very best stuff, which I also recommend. Go in half with a friend or a few friends to get the price down.
You could get it dyno tuned a lot for that kind of money, but it'll never be as good as what you can do yourself. Because they're not gonna spend the time on it that you can spend yourself.
I would get it before getting any big mods so you can learn as you go. Then once you know the software pretty good, you can start charging people to tune there stuff and get your money back. Or at least some of it.
And lastly I don't think that the OP mentioned what transmission he has. If he has an A4 without a stall then headers are a waste of money, tuned or not.
Jon
Def get all the stuff done to your car that u want and than tune it and your Q on LTs and haven to tune it ALL DEPENDS ON IF YOU HAVE CATS OR NOT!!!! if you dont have cats your gong to have to find o2 sims which they dont make anymore or find someone with hp tuners that can reflash your pcm and turn off the rears.
Last edited by 1999FirehawkLS1; Jan 15, 2009 at 02:49 AM. Reason: typo
i cant remember because i didnt actually read the entire article. but one of the latest gm high tech performance magazine did an install of slp lt's and gained 34 hp. i dont know what they did for a tune, i will read it entirely tomorrow while im sitting in gay *** jury duty!
Def get all the stuff done to your car that u want and than tune it and your Q on LTs and haven to tune it ALL DEPENDS ON IF YOU HAVE CATS OR NOT!!!! if you dont have cats your gong to have to find o2 sims which they dont make anymore (and i have a set forsale!!!) or find someone with hp tuners that can reflash your pcm and turn off the rears. I have a buddy that does mail order tunes pm if your interested