I dont see how we could adapt the SMART XEDE functionality to a Power FC. You would need to reinstall the factory computer.

Shiv

 

Please excuse my ignorance, but this seems to good to be true. With S.M.A.R.T. (1) I don't need separate maps for pump and race gas, and (2) there's really no need for a day spent on the dyno when I change cams? Also, is the $395 price for the XEDE upgrade only valid until 7/7/05?

 

You will still need seperate maps for pump and race. Both maps will have different authority ranges due to the octane difference (boost, timing, etc). All the S.M.A.R.T. Xede does is realtime modify the authority ranges of each map allowing better driveability/power delivery.

Correct, no real need to spend time on the dyno now. However, you will need to upload a new base map on to your Xede to benefit fully from the upgrade (authority ranges).

Yup, after that date the price goes up. {:edit: rephrased as I misread this question}

 

^ ditto

 

For me, one of the nicest things about the SMART system will be that I will be able to get more power out of my Evo on track days w/out sacrificing my margin of safety. When I road race I do not load a racegas map - instead I keep my 93 Octane map in there and fill up with racegas to give myself a nice margin of safety. Of course that leaves a lot of power on the table in the interest of safety, but with SMART, the XEDE will automatically be able to extract as much power as it can (within its authority range) within the limits of my 93 map. Sweet!

Shiv, any word on how much the cost of SMART would be if I already have an LC-1?

l8r)

 

Although, let me expand on that.... and this is all from my limited understanding of how SMART works....

The SMART software works off of a base map for timing, fuel and boost, and it can compensate/learn within a set authority range as KLancer said. You start with a base map for your level of mods, and the SMART tech will change your A/F ratio and timing to get optimum performance within it's allowable range. Now if you datalog a series of runs and notice that the SMART XEDE is constantly pushing your timing to the limit of it's authority range, you can modify your base map to reflect what the SMART stuff is doing all the time. Then do another series of runs, and see where it moves the timing, if it keeps pushing it more, then keep adjusting the base map to where the SMART stuff is putting it. That way the SMART tech eventually ends up working off of the nominal value instead of running at one end of it's tolerance all the time.

This would work for finding the optimum timing level for race gas if you were running race gas on a pump map. However, I don't think the SMART XEDE will add boost for you. The boost is only "SMART" in the respect that the XEDE will pull boost if it sees a problem, but when things are running normal it will only run the boost level at which you tell it to. Same goes for A/F, you set a target A/F and it will lean and richen as necessary to meet the target A/F, not constantly lean you out until you're on the knock threshold.

If you run "SMART" off of a race gas base map then you will have a leaner A/F target and a higher boost level target set already and the XEDE will be SMART with the timing to give you maximum power in respect to those targets.

Hope I got that right, Shiv, wanna chime in?

- Steve

 

I would like to know this as well. As it does state the regular price is $549. Can you shed some light on this shiv?

 

If that is right then I will send money now.......

Nevermind, just sent payment!

I shall take no chances...

 

^ I think that's pretty self expanetory. If you order before the 7th it's 395, after the 7th it's 549

 

Yea but I thought it was going to be $395 reg. Not some sort of intro price.

 

well now it looks like its an intro price.....I guess you are getting a price break ($150) being one of the few first ones to "try" this new feature.

 

If we send payment before 7/7/2005, when is the expected shipping date?

Also, I assume all new XEDE units sold are v3?


I'm sure we are all waiting for more info on the SMART fuel and how well the system works when all features are active at once, but that preorder deadline is getting close!!

 

I think the other guys answered your questions. Here's some more info:

The whole idea behind SMART is to enhance the adaptive capabilities of the engine control system in ways that can't be done with typical static programming solutions (traditional reflash, stand-alone, piggy-back). Typical static programming solutions only allow you to change fuel, spark timing and boost in a 3d table with one axis being RPM and the other being some type of Load (TPS, MAP or MAF). The SMART system takes this a lot further and allows Fuel, Timing and Boost to be mapped as a function of a Load/RPM/Knock activity/AFR combo. More so, it can make these dynamic adjustments realtime, per every single engine event. And instead of relying on highly sampled (slow), single-varible feedback systems, it uses a running adaptive algorthim with user-definable authority range tables for fuel, timing and boost.

We don't want to promote it as a self-tuning device since we didn't design it to do that (although it does do that to some degree). Instead, it is designed to open up the scope of how an egine is controlled in the real world under constantly varible conditions.

From a tuner standpoint, it means that one no longer has to tune for the lowest common denominator. Which, in turn, means that the car can run aggressively when conditions allow and conservatively when conditions take a turn for the worse.

Shiv

 

once again......my car needs this badly. I will vote myself WRX beta version

 

All the XEDEs sold in the last couple of months have been v3 equipped. Those that are still v2 can be updated by the user at home. Shipping date for the SoCal dyno day folks (the first to receive the SMART system) is 2nd week of July in time for installation at Tuning Technologies during the dyno weekend. The rest of the orders will start shipping out the following week, on a first come, first serve basis.

As for intro price, yes, it is until 7/7. There will be a $150 price increase after that date.

Cheers
shiv