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-   -   Street Tuner/Access Tuner Race Discussion Thread (http://legacygt.com/forums/showthread.php?t=43214)

rao 09-13-2006 01:33 PM

Street Tuner/Access Tuner Race Discussion Thread
 
The purpose of this thread is to discuss Street Tuner and related issues inone easy to find place.

Now that there are several of us who are actively using ST, this is a good place to share information.

rc0032 09-13-2006 02:30 PM

Sticky :icon_conf

Hope to have more to share soon :)

CasopoliS 09-20-2006 01:56 PM

I am thinking about getting ST, even though I do not have tuning experience. I have a friend that has tuned MANY turbo cars and says the basic stuff is the same (timing, boost control, WGDC, etc). I think once he looks over the COBB tuning guide, and I get a stg II ST map for him to start with... he can road tune my LGT with a WB AFR (maybe even one that can be used with ST).

What are your thoughts on this? The guy actually is a service manager at a Subaru dealer and is on this forum (srt'd). He is really smart when it comes to tuning and built his amazing SRT-4 from the ground up and tuned it himself. I would think he can figure it out.

It is only $195 right? That seems like a good deal since 1 tune alone costs that at most tuners. This can do everything they could do right? The only drawback is I can only run ST maps.

What about using the ST software on other AP's / other vehicles? Like if someone had a 05 WRX - could I unmarry ST from my AP - and remarry to another AP for another car? In the meantime I can maybe run my stage II protune map until I get ST back and married to my car? On the ST guide it just says it can only be used on 1 car at a time.

EDIT: DUH. As soon as I unmarry the ST from the other car (so I can get my tune back) - they will lose their tune. Its a flip-flop. No way around it. Oh well my buddy will spend the $200 once my car gets tuned.

Someone should host the maps that are floating around here - in one location - with a 'use at your own risk' warning.

CasopoliS 09-20-2006 02:09 PM

Also, for those who use a WB and import it into the software.... how close are the values with the stock narrowband?

bosco 09-20-2006 02:17 PM

subscribed

rao 09-20-2006 02:23 PM

You can only use ST on one car - it is linked to the car's ecu. You can share ST maps among crs that are the same year and transmission.

The factory front O2 sensor and a wideband will be within a tenth of a poinit of one another from 11.2 to around 16.0. I posted the exact numbers in another thread.

The ST software is good, but it just software; if someone understands the principles of tuning with similar induction (turbo, supercharger, NA) they can tune a Subaru just as well as any other car (and the forced induction stuff is not all that complicated either).

CasopoliS 09-20-2006 03:54 PM

Quote:

Originally Posted by rao (Post 771415)
You can only use ST on one car - it is linked to the car's ecu. You can share ST maps among crs that are the same year and transmission.

The factory front O2 sensor and a wideband will be within a tenth of a poinit of one another from 11.2 to around 16.0. I posted the exact numbers in another thread.

The ST software is good, but it just software; if someone understands the principles of tuning with similar induction (turbo, supercharger, NA) they can tune a Subaru just as well as any other car (and the forced induction stuff is not all that complicated either).

Thanks. That is exactly what the guy told me (srt'd). Its the principles of tuning. It seems that if the narrowband reads within 1/10th of a point within that range, that is sufficient. Or am I wrong? If you are lower than 11.2.... you will get less accurate readings... but essentially you are rich and at that point that is all that matters. Same with the high end. Above 16 is too lean, and at that point I just want to richen up (don't care the exact value).
What is your target AFR? Stage II I think I am low 11's... but I think closer to 12 might be more ideal.

rao 09-20-2006 04:01 PM

The stock O2 sensor stops at 11.2, it will just keep reading 11.2. On the lean side you will not need to worry. My targets are a little higher then typical becaue of water injecton, but 12.0 is not bad under WOT.

Stage 2 you are probably actually in the mid 10's at WOT.

bosco 09-20-2006 04:19 PM

when i had my car Protuned the base was 252 hp/269 tq with the standard Cobb stage 2 93. the a/f was 13.4 @6500. when Jorge was done it was 260 hp/294 tq with a 12.1 a/f @6500 all runs where 100 to 103 degrees f @ 31% humidity. i'm sure he changed more than just fuel. just sharing info. bosco

rao 09-21-2006 11:45 AM

13.4 is pretty lean.

bosco 09-21-2006 12:36 PM

Quote:

Originally Posted by rao (Post 773159)
13.4 is pretty lean.

thats what he said. as he adjusted car you could actually hear the tone change when he richened it up. the car sounded more powerful. i posted the info to confirm what you stated about AFR's.
when you use your Street Tuner software do you data log and then make your adjustments by that? bosco

rao 09-21-2006 01:24 PM

Yep.

mwiener2 09-21-2006 01:25 PM

i'm thinking of getting ST too. The gas worth of a trip to my tuner would pay for the ST.

rc0032 09-21-2006 02:14 PM

You cant just look at the $195 sticker of the ST. Its $195 + $200 for a wideband +40 for a serial –USB + this +that. Trust me it adds up. Don’t forget a new engine is $5k

mwiener2 09-21-2006 02:36 PM

for me it's 195+ was gonna buy a wideband anywyas + already have usb --> serial for datalogging + already have most of this and that



I'm gonna try and figure out a way to amke my car my senior project. Another kid in my class is using a turbo and making it into a jet engine....so I'm gonna do somethign similar....maybe


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