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Old 03-08-2005, 08:59 AM   #1
anthonyrb98
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Join Date: Nov 2003
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Location: san diego
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hbspeed tuned 18g sleeper

Default how do you tune for headers, intake, and front mount intercooler?

any experts out there? i recently ordered the street tuner and was wondering if i can do this myself. or how much does it cost to have it tuned at a reputable tuner shop?
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Old 03-08-2005, 10:10 AM   #2
mbiker97
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You buy a wideband and go from there. Sorry man, but that is the answer. There is no set rule for those mods.
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Old 03-08-2005, 11:45 AM   #3
big_adventure
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Wow, you have a really good chance of blowing up your engine! No, seriously, tuning is almost as much art as science - every engine responds to every set of mods just a bit differently. The more agressive the mods, the less chance you ever getting a "canned" tune right, as the differences are magnified by bigger changes. Plus, gas and climate are so different in different parts of the country that a "PERFECT" tune in California is practically guaranteed to be wildly inappropriate for Tennessee.

Basically, you would need a wideband O2 sensor, and something to listen for knock with, and a laptop. Optimally, you would have a dyno, but you can do it on the street with enough tools and enough space (not to mention a cavalier attitude towards the law). Then, you start slow. See if you can find a very mild "basic" tune map and then go from there. Know what you are changing before you do.

However, it sounds to me like you don't have experience with this, and if that's the case, I strongly recommend paying someone to do it for you. there are a lot of reputable tuners, some will come to you, some you will have to go to. Try Phil@Element, TurboXS, et al. Contact Mike or Clark at Kingpin. They are in AZ but Clark travels all over the place to tune cars. I THINK Phil meets people as negotiated. TXS will require you to go to Maryland, which may be difficult with an untuned car from TN. Post in your local NASIOC forum and ask the nice people there about tuners near you.

Good Luck,

Sean
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Old 03-08-2005, 04:01 PM   #4
ff45726
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Quote:
Originally Posted by big_adventure

However, it sounds to me like you don't have experience with this, and if that's the case, I strongly recommend paying someone to do it for you. there are a lot of reputable tuners, some will come to you, some you will have to go to. Try Phil@Element, TurboXS, et al. Contact Mike or Clark at Kingpin. They are in AZ but Clark travels all over the place to tune cars. I THINK Phil meets people as negotiated. TXS will require you to go to Maryland, which may be difficult with an untuned car from TN.

Sean
You know, you say that but where does it start then? How would someone ever get a hang of this stuff then without going to a tuning school or something?
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Old 03-08-2005, 04:06 PM   #5
MikeWRX-NJ
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^^ that's part of it. You have to have a very good understanding of the combustion cycle and of how timing, fueling and VE affect power.

check out http://www.efi101.com/


and check my post in this thread .

http://forums.nasioc.com/forums/showthread.php?t=728465 the book i reference is awesome and is easy to understand. You have to learn the theory on paper before applying it to your car otherwise... boom.
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Old 03-11-2005, 11:04 AM   #6
Subaru Gwinnett
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We've had a number of people come down from TN to get tuned here. We can certainly tune your ST. I'm happy to have you ride with me while we road tune and sit in the car while we dyno tune and I'll explain everything we come accross.

Scott
404-388-8751
678-584-7251
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Old 03-11-2005, 11:22 AM   #7
pezman04wrx
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^^^ Excellent ... Good to see ... Now if you were just up my way ... ... Don't suppose you could PM me a local dealership with your same thoughts on aftermaret and tuning ...
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Old 03-11-2005, 11:59 AM   #8
Subaru Gwinnett
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C'mon, your only what 15 hours away. One day here, one day back. I wish I could help, I don't know of one near you.

Siegel
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Old 03-11-2005, 03:25 PM   #9
big_adventure
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Quote:
Originally Posted by ff45726
You know, you say that but where does it start then? How would someone ever get a hang of this stuff then without going to a tuning school or something?
Well, you have a few options.

1. Get someone experienced with Subies and have them teach you. If they are really good, it's probably going to cost you.

2. Study everything you can and start making changes on your own. This is risky and takes time. In fact, the ratio is probably something like risk = 1/time. Spend less time, take more risk, and vice versa. And never forget that time = money, but so does risk ~ money in this case.

3. Just say F- it and start loading up agressive maps. This is really option 2 taken to the absurd but logical conclusion.

4. Post on a forum and ask people to tell you, for free, how to tune your $20K plus car loaded with $5K+ in mods. The reputable and experienced tuners will not tell you how to do it for free, so, the only people who will answer with advice are people you may well not want the advice from.

Sorry, but those are the facts. If the poster wants a quickly-configured custom setup, he's not going to get it from posting on a forum. The "safe" choices are to pay someone some money to do it, pay someone boatloads of money to teach YOU to do it, or do it yourself SLOWLY. Period. The other choices will lead to non-optimal tunes or expensive repairs, or, most likely both.

Have fun!
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