Turns out that our little EVO XEDE also works on a DSM (Eclipse GSX to be exact). Plugs right in with its plug-n-play harness and the car starts without a problem. Gonna tune one tomorrow on the dyno to see how it works. Appearantly, the word on the street is that being able to control ignition timing as well as fuel and boost may be of some benefit

Cheers,
shiv

 

Interesting. Did you have to swap any of the wires around in the harness?

 

Is that the word on the street?

 

Of course. I've been doing it for years. Not with an XEDE, though.

 

]
Shape you should try it out. I works great. And more resolution the DSMlink.

Eric

 

I paid $470 for DSMLink. And it includes a kick-*** open-source Java datalogger, boost datalogging, wideband O2 datalogging, speed-density metering (if you need it), a 3 step rev limiter, anti-lag, nitrous/water injection controls, it remaps the stock boost gauge to a knock/timing/temp gauge, it turns on the CEL at 5 degrees of knock (user customizable). And it offers the same exact resolution as the stock ECU uses, with interpolation in between, which is what Shiv advertizes the XEDE does.

 

Xede does that to Plus when you are ready to move into a evo you can take Xede with ya.

Oh it also controls boost. Does DSM link?

 

Xede has a 3 step rev limiter that is tied to the clutch so that when you press in the clutch your rev limit drops for seamless wide open throttle shifts? Does it have a user-selectable launch limiter?

Xede allows you to change the idle RPM in the ECU?

Does Xede allow you to actually turn off OBDII checks, like misfire detection?

Xede has a MAF compensation table that only affects the MAF (not timing advance, etc...)?

Xede can switch between using the MAF and using speed desnity at a particular airflow level in order to avoid MAF overrun?

It datalogs all the stuff that DSMLink does? Actually, does the xede allow you to datalog at all?

It remaps the DSM boost gauge to a knock gauge (or any number of other user-selectable gauges)?

It turns on the check engine light when you hit 5 degrees of knock retard?

Incidentally, if the Xede bolts right in to a DSM, I bet a 1995 DSM ECU will work in an Evo, as well. It would take a re-wiring harness I'm sure, though. I'm making one to put a 1995 DSM ECU in a 1G DSM, actually.

Doesn't really matter, though, since I doubt I'll buy an Evo.

I control boost using a $50 Hallman manual boost controller that I have owned for 5 years now. And I'm working on programming my own very flexible microcontroller-based boost controller with a gauge display (water temp, wideband O2, timing advance, oil pressure, boost, etc...).

Controlling boost and knock sensor attenuation are the only thing that Xede does that DSMLink does not. The stuff that DSMLink does do that Xede does not is a very long list. I have the boost control covered, and I don't care to attenuate the knock sensor.

Sorry Shiv, I know you didn't want to turn this into a DSMLink ad. I know that the xede is probably the best piggyback there is. But in DSM land, there is a much cheaper solution that doesn't have the issues that piggybacks carry with them. While it works in a DSM, I doubt you will have many people with 10 year old piles ( ) lining up to buy them.

 

[QUOTE]Originally posted by ShapeGSX
[B]Xede has a 3 step rev limiter that is tied to the clutch so that when you press in the clutch your rev limit drops for seamless wide open throttle shifts? Does it have a user-selectable launch limiter?

Xede allows you to change the idle RPM in the ECU? NO

Does Xede allow you to actually turn off OBDII checks, like misfire detection? NO

Xede has a MAF compensation table that only affects the MAF (not timing advance, etc...)? Maybe don't know

Xede can switch between using the MAF and using speed desnity at a particular airflow level in order to avoid MAF overrun? YES!

It datalogs all the stuff that DSMLink does? Actually, does the xede allow you to datalog at all? NO but it might soon. I really don't know what vishnu has in the works

It remaps the DSM boost gauge to a knock gauge (or any number of other user-selectable gauges)? OK you lost me

It turns on the check engine light when you hit 5 degrees of knock retard? No it does not

Incidentally, if the Xede bolts right in to a DSM, I bet a 1995 DSM ECU will work in an Evo, as well. It would take a re-wiring harness I'm sure, though. I'm making one to put a 1995 DSM ECU in a 1G DSM, actually. Great!

Doesn't really matter, though, since I doubt I'll buy an Evo.
you might change your mind when you DSM gets a little older

I control boost using a $50 Hallman manual boost controller that I have owned for 5 years now. And I'm working on programming my own very flexible microcontroller-based boost controller with a gauge display (water temp, wideband O2, timing advance, oil pressure, boost, etc...). Great. I also love MBCs

Controlling boost and knock sensor attenuation are the only thing that Xede does that DSMLink does not. The stuff that DSMLink does do that Xede does not is a very long list. I have the boost control covered, and I don't care to attenuate the knock sensor.

Yep but it does not control boost. Yes pa?

Sorry Shiv, I know you didn't want to turn this into a DSMLink ad. I know that the xede is probably the best piggyback there is. But in DSM land, there is a much cheaper solution that doesn't have the issues that piggybacks carry with them. While it works in a DSM, I doubt you will have many people with 10 year old piles ( ) lining up to buy them.

Hey you can't win them all.

Eric

 

ShapeGSX,

Last time I saw the DSM link software, it didn't seem to offer 3D mapping, did it? That is, timing, fuel and boost that is mappable with a X-Y table. Of course, my experience with the DSM link is essentially zero. Only tuned one car with it.

Shiv

 

I do like the software interface with the up and down equalizer type adjustments.

 

From the DSMLink site:
"You retain all the driveability of the factory-calibrated fuel and timing maps during cruise operation, but gain full control over things at wide open throttle. You simply specify RPM-based adjustments and DSMLink automatically creates the 3-dimensional mapping used internally by the ECU. It's a very easy, yet very powerful way to tune your car's performance at the track."

http://www.dsmlink.com/faq.html#mapping
"What do you mean by "DSMLink automatically creates the 3-dimensional mapping used internally by the ECU" when referring to the fuel adjustment feature?

Many people like to think of an ECU as being a pretty simple device. It just calculates fuel for a given airflow, right? Well, not quite. The table it uses to calculate enrichment values is a little more complicated. It doesn't actually use airflow per second, which is what most people talk about, it uses airflow per revolution of the motor. It's sort of the same, but a little different too. It also uses the current engine RPM to lookup values in what is effectively a 3-dimensional table. To complicate matters even more, several such tables exist in the ECU for different purposes/conditions.

This is why aftermarket piggyback controllers like an AFC or PMS have such a hard time dealing with the ECU. They are trying to work outside the ECU where they have no access to what's really being used and why. DSMLink, however, does. It automatically scales the more simplistic view of fuel control (i.e., simple RPM based adjustments) according to the airflow and RPM values that were actually used by the ECU to do its own lookup. This makes for a very smooth and consistent adjustment procedure unseen before in any other aftermarket controller."

 

Shiv,

Does that mean that Bret's red pile is actually running again?!?!


j/k

that's good to hear.

 

Yes the pile is alive Chris!!!!

 

From what i've seen, the DSMlink appears to linearize between mapping points as a function of load. This would be just fine if all mapping requirements behaved in a linear manner. Unfortunately, they do not. The inability to truly map in 3D is a big shortcoming for many reasons. If this is the case, I wouldn't even consider it as an engine control solution, to be honest.

Shiv