Cobb's street tuner release notes

[MikeK]

Cobb's forum

Hmmm, maybe I should have stuck with the accessport

[MattR]

Looks pretty cool...And Cobb says it should be out Feb 11th....Sooooooo.....We should see it sometime in early 2006!

[MikeK]

Actually Feb 11th is when they announce when it will be out ....

[AtomicLabMonkey]

That looks cool, but wow is it expensive. :shock: $1045 is twice what the equivalent product for my car is. If I ever buy a Subaru it's staying bone-stock.

[Nick Koan]

Wasn't it due out Feb 11, 2004 also?

[MikeSTI]

There might still be hope for me

I really want somthing that I can adjust off the dyno on my own for little things

[sybir]

For StreetTUNER users, a special StreetTUNER map file format has been created to allow any StreetTUNER user to share their map files with fellow StreetTUNER users.


Danger, danger.
Some guy sent me a map that makes my car really fa......b0000M!

Be careful with that possibility, not everyone who claims to be a tuner has experience

It'll be interesting to play with the Cobb stuff when it comes out, and see how it compares.

[MikeSTI]

I would never trust any map other then a tuners map :wink:

I hope it does however tune as easy if not easier the the EcuTech being that is has a lot of stuff built into it just makes it more user friendly and offers more in its package then the EcuTech as far as a reflash or a reflash that you can tweak and data log with map switching abilities live tuning......


Wow it has a lot when you think about it................I just hope Nate will offer his skills when it comes to us n00bs tuning cars, I still like the idea of a pro doing the maps

[sybir]

Nate will tune anything you pull on the dyno. We ain't hatin', just haven't played with the StreetTuner yet so we're withholding judgement until we do..

[MikeSTI]

Originally Posted by sybir

Nate will tune anything you pull on the dyno. We ain't hatin', just haven't played with the StreetTuner yet so we're withholding judgement until we do..

thats good enough for me

[Dean]

Street tuner + G-tech Pro RR + Wide band O2 sensor is probably the direction I am headed long term.

[sperry]

Originally Posted by Dean

Street tuner + G-tech Pro RR + Wide band O2 sensor is probably the direction I am headed long term.

Keep a spare motor in your garage if you think a G-Tech will allow you to tune a car to equivalent performance as a car tuned on a dyno.

Also, keep a lot of money saved up for the tickets. I doubt you'll be able to do more than 2 or 3 3rd gear pulls on the street w/o attracting attention.

[MikeSTI]

Originally Posted by Dean

Street tuner + G-tech Pro RR + Wide band O2 sensor is probably the direction I am headed long term.

that sounds like a grand idea I need to get my side job done and I might get one of those G-tech Pro RR

[Dean]

Originally Posted by sperry

Keep a spare motor in your garage if you think a G-Tech will allow you to tune a car to equivalent performance as a car tuned on a dyno.

G-tech vs. Dyno has little to do with blowing the motor IMHO. It is about knock sensors, air/fuel, and O2! Also, G-Tech@Altitude(current), Dyno@Altitude(Sac).

I'm not saying I won't have professional assistance or Dyno tuning, just that having the additional tools listed would allow for fine tuning based on conditions, etc. A couple pulls on a Dyno <> weeks of monitoring and tweeking... You don't think Subaru built the stock maps in 3 pulls, do you?

[MikeSTI]

I don't

[sperry]

Originally Posted by Dean

G-tech vs. Dyno has little to do with blowing the motor IMHO. It is about knock sensors, air/fuel, and O2! Also, G-Tech@Altitude(current), Dyno@Altitude(Sac).

I'm not saying I won't have professional assistance or Dyno tuning, just that having the additional tools listed would allow for fine tuning based on conditions, etc. A couple pulls on a Dyno <> weeks of monitoring and tweeking... You don't think Subaru built the stock maps in 3 pulls, do you?

No, I bet Subaru used more like 10,000 pulls on a dyno to get the stock maps. Then they drove it for months. Then they put it back on the dyno to tweak it.

And unless G-Tech has a product newer than the RR, I don't think it can monitor and display a boost curve, timing corrections, EGT, A/F ratio, RPM, Speed, knock events, etc. It's not like it hooks to the ECU.

G-Techs (esp. the new RR) are good for handling tweaks, IMO. I'd use it in conjuntion w/ in car video to figure out what sections of the track I'm wasting traction on, and where I'm not being smooth enough. Not for engine tuning.

[MikeSTI]

Originally Posted by Dean

Street tuner + G-tech Pro RR + Wide band O2 sensor is probably the direction I am headed long term.

I think all this put together has what you are looking for Scott

[sperry]

Originally Posted by MikeSTI

I think all this put together has what you are looking for Scott

I'll leave the tuning to the experts. As soon as I have my own dyno and as much experience as Nate, I'll start tuning my own maps.

[Dean]

Originally Posted by sperry

And unless G-Tech has a product newer than the RR, I don't think it can monitor and display a boost curve, timing corrections, EGT, A/F ratio, RPM, Speed, knock events, etc. It's not like it hooks to the ECU.

Um, unless I misread the specs, the Street tuner has the ability to see the data you are refering to, if it is not already on the gauges I have. Wide band 02 is probably the key addition. Dynos do not offer the items you are listing, they just show torque, and HP, just like the G-Tech... It's all about gauges, and what's plugged into the OBD2 port.

[MikeSTI]

key word would be to "tweak" the maps. I still want Nate or equal dyno tune to start with, but there could be little things that I might want to change (tweak) to see better results once up here

[sperry]

Originally Posted by Dean

Um, unless I misread the specs, the Street tuner has the ability to see the data you are refering to, if it is not already on the gauges I have. Wide band 02 is probably the key addition. Dynos do not offer the items you are listing, they just show torque, and HP, just like the G-Tech... It's all about gauges, and what's plugged into the OBD2 port.

I wouldn't trust an accelerometer attached to the car by a suction cup to report hp and torque accurately enough to tune with. Also, an autometer boost gauge isn't going to give the accuracy, and more importantly the curve vs. rpm, to tune boost. A wideband O2 will be useful, but again, it's not going to show the data over rpm... it's just going to show you the A/F right now.

As far as the features of the Street Tuner... it looks like the best you can do is datalog to a CSV file on disk that can "be imported into popular spreadsheet programs for display or graphing". You might be able to get the data you need to tune, but at the very least, it's going to be pretty tedious.

Like Mike said, you might be able to do some minor tweaks, but I'd be extremely wary about actually attempting to tune a car with the tools you listed. The biggest reason is that your data aquisition tools are not integrated, which means they may not be calibrated to each other, and there is a higher chance of human error when overlaying all your data points. For example: what happens if the G-Tech thinks 5500 rpm is what the Street Tuner considers 5300 rpm? And how are you going to record A/F ratios in order to compare them to the curve you're importing into Excel?

You're either gonna blow up the car pushing it too far, or get a result that's not as good as the result an experienced tuner with the proper tools would get. If you were to significantly improve your tune, I'd call it luck.

[Dean]

I could be wrong, but Scott, I beleive you are attributing to much to Nate's Dyno. The Dyno, and the ECUTEK SW run on seperate machines/applications and are not linked.

The Dyno is only a tool to simulate real world conditions in a shop, and measure wheel torque, and HP. That is all. And as we know, comparing numbers even between identical dynos at different locations can be a crap shoot. The G-Tech provides the same data, and as long as it is not moved, should provide data, probably as consistant as a Dyno, and as air is actually flowing over the car, and through the openings, I would argue it would be more of a real world number because it is really happening, not being simulated.

Go read the Street tuner specs again. All the data you are talking about is available for real time display.

ECUTEK does not have a monopoly on reverse engineering the Subaru Select Monitor communication protocol...

Live Tracing even allows you to see the exact entry the ECU is currently reading... Wonder if ECUTEK can even do that?

You may choose to rely on others to tune your car, but I would like to be able to do that and in addition, learn more about the process, and in the end, be able to do it myself where possible/reasonable.

[MikeK]

I think the dyno reads a/f ratio as well

[Dean]

Originally Posted by MikeK

I think the dyno reads a/f ratio as well

How? SYBIR, NATE?

[MikeK]

There is some O2 sensor that goes into the end of the exhaust.

And you are correct, sybir or nate puts it in there