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Old 01-15-2010, 05:02 PM   #1
jayman4312
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Default general tuning question

so i want to put the turbo xs up pipe, catless down pipe and catback exhaust, turn up the boost, and maybe after market intake on my 04 wrx, 48xxx miles. my question is if i buy the accesspot 2, can i download a map that'll make it work properly (eliminate the open closed loop). i know it wont be as precise as a tune from a shop, but im wondering if there is a shelf map thats appropriate until i get the funds for a protune? also, could i turn up the boost with an accessport, or would i need to get a boost controller?

-sorry if this is a stupid questions, maybe should be under newbie section, move if necessary
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Old 01-15-2010, 05:12 PM   #2
cruxwrx04
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u should just get the pro tune... ur gonna have all the money in buying the ap v2 when a pro tune will cost you the roughly the same.. but if u want to buy the ap go ahead, there ots maps are ok... just really think what ur goal is and do everything right the 1st time.
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Old 01-15-2010, 05:17 PM   #3
jaxscuby
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install your parts go opensource..save the money would have spent to get AP
for a proper tune..
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Old 01-15-2010, 05:33 PM   #4
jayman4312
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ive talked to the tuner at a shop near me, and he said open source isnt as accurate as using an ap? is this correct, or should i find a new tuner. or maybe i misunderstood him, maybe he meant an ap is just easier?
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Old 01-15-2010, 05:36 PM   #5
Ken Rivet
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Impreza WRX STi

AP is easier, opensource can squeeze more power, but has it's risks
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Old 01-15-2010, 05:45 PM   #6
jayman4312
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Default

what are the risks? assuming its done by a very experienced tuner, like at grd or P&L

so what should i do to get those parts tuned for my car? least expensive is clearly open source, i only plan on getting it tuned once for this set up, and i dont really need all the other features of the ap. im fine with getting it tuned once and never worrying about it again.
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Old 01-15-2010, 07:09 PM   #7
Cobb Tuning
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Default

Quote:
Originally Posted by jayman4312 View Post
so i want to put the turbo xs up pipe, catless down pipe and catback exhaust, turn up the boost, and maybe after market intake on my 04 wrx, 48xxx miles. my question is if i buy the accesspot 2, can i download a map that'll make it work properly (eliminate the open closed loop). i know it wont be as precise as a tune from a shop, but im wondering if there is a shelf map thats appropriate until i get the funds for a protune? also, could i turn up the boost with an accessport, or would i need to get a boost controller?

-sorry if this is a stupid questions, maybe should be under newbie section, move if necessary
You can certainly install an AccessPORT with a tune that will be appropriate for your car what will give you more power in a safe and easy manner without having to mess with laptops, you can literally just hit a button and get more power. The "Off The Shelf" maps we offer will increase boost pressure and alter fueling and timing to increase power production.
The only modifications we do not support are most aftermarket intakes as these require custom calibrations to function properly.

Then, at a later date you can get a custom tune if you want to make more power, but the maps that come with the AccessPORT are safe AND will increase performance.

You will not need to get a boost controller, the AccessPORT utilizes your stock boost control system to increase boost. Let us know if you have any more questions, you can read more about the AccessPORT at http://www.cobbtuning.com/products/?id=3264

You can read about our maps on our download page here: http://www.cobbtuning.com/info/?ID=3061




Travis
COBB Tuning



Last edited by Cobb Tuning; 01-15-2010 at 07:17 PM.
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Old 01-15-2010, 08:06 PM   #8
project_skyline
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Quote:
Originally Posted by jayman4312 View Post
ive talked to the tuner at a shop near me, and he said open source isnt as accurate as using an ap? is this correct, or should i find a new tuner. or maybe i misunderstood him, maybe he meant an ap is just easier?
Your tuner is not very bright. open source and AP are the same exact thing just using slightly different ways of adjusting things. In the end the stock ecu is controlling everything. The AP is faster to use especially on subaru's. Is it better or worse. No but then again I prefer stock ecu tuning.

Quote:
Originally Posted by Ken Rivet View Post
AP is easier, opensource can squeeze more power, but has it's risks
Thats ridiculous.

Im not sure what OTS maps are out there OP for your mods that you have but its probably a good idea to get a pro-tune. It will really wake things up from an OTS anyway.
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Old 01-16-2010, 12:53 PM   #9
jayman4312
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well i think my best bet will be opensource then, unless the earlier poster can give me a reason/proof on how they're risky.
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Old 01-16-2010, 01:01 PM   #10
JSarv
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Open source is NOT risky.

Here is the just of it guys. Open source uses RR/Ecuflash to adjust defined values in the rom section of the ecu. It is then flashed via laptop and cable.

AP has the SAME end result, other than the AP is the "flash tool"

Infact in the 16bit ecu's there are more defined parameters to adjust in open source than in the AP.

NEITHER are better than the other. Neither has more control or is more dangerous.

The AP is the flash device and a few things can be tuned on the fly without reflashing (live tuning).

Thats it. The values changed are IDENTICAL. When you see injector scalar in open source and then in an AP for the same car. The stored address in the ecu IS THE SAME PLACE. The only thing that is happening is you either us an AP or a laptop to change the hex value stored in the ecu for injector scalar. That is freaking it. nothing more! nothing less.

Your tuner says that about AP because he sells AP's. Its his job.

Do what you want its your money. Neither are a bad choice.
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Old 01-16-2010, 01:17 PM   #11
jayman4312
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thanx for the great reply!!
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