utec or xede
I acually think both will be able to use some form of "Speed density" setup in the future.. but in this case, without a special module to plug into the wiring harness, a MAP reading without measuring intake air temp would not result in the best "MAF Replacement" strategy.. (I'm not a big fan of speed density systems either)
Now, the UTEC can use the MAP sensor input as a reference input instead of the Karmann frequency for the fuel map.. HOWEVER, Its not well documented. It does not currently allow you to remove a MAF sensor..
I did see a post on how the XEDE could do the same thing, however Shiv did document that Boost reference (MAP Sensor) could be used as an input.. Again, its not a true speed density system so I don't know if little gremlins wouldnt turn up on either..
I do have my own opinions and my own solutions to using MAP.. but its irrelevant to this particular thread.
Currently the UTEC can use a GM 3bar map sensor for boost reference data to allow completely closed loop boost control if desired (I am still using open loop control for the moment). It also uses the boost data to provide logger info. Do not know what the XEDE offers in that respect. I do know that the XEDE is capable of controlling the boost solenoid in a similar manner to the UTEC though.
a new Firmware release for the UTEC will allow true injector scaling, altering of the rev limits and fuel cut limits due to its ability to control the injector drivers, while still providing data to the stock ECU to make it happy.
I have no doubts that at some point, this will be something that the XEDE will be able to do, if it has not already been available.
Now, the UTEC can use the MAP sensor input as a reference input instead of the Karmann frequency for the fuel map.. HOWEVER, Its not well documented. It does not currently allow you to remove a MAF sensor..
I did see a post on how the XEDE could do the same thing, however Shiv did document that Boost reference (MAP Sensor) could be used as an input.. Again, its not a true speed density system so I don't know if little gremlins wouldnt turn up on either..
I do have my own opinions and my own solutions to using MAP.. but its irrelevant to this particular thread.
Currently the UTEC can use a GM 3bar map sensor for boost reference data to allow completely closed loop boost control if desired (I am still using open loop control for the moment). It also uses the boost data to provide logger info. Do not know what the XEDE offers in that respect. I do know that the XEDE is capable of controlling the boost solenoid in a similar manner to the UTEC though.
a new Firmware release for the UTEC will allow true injector scaling, altering of the rev limits and fuel cut limits due to its ability to control the injector drivers, while still providing data to the stock ECU to make it happy.
I have no doubts that at some point, this will be something that the XEDE will be able to do, if it has not already been available.
Originally Posted by 93h22cvc
the u-tec i would say has a ton more options for future mods than the xede.the u-tec will soon have an option to be map based which is just one of the better things that the x? will never be able to do
They both do about the same thing, and in my opinion, decisions should be based on factors such as how available a competent tuner is for each system? Are maps available for common upgrades? What is the price, etc?
Last edited by Smogrunner; Jun 23, 2004 at 08:41 PM.
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The upcomming release of the XEDE will support a bunch of new features. I'd say the UTEC and the XEDE are both pretty close in features and functionality. Both of them are also close to releasing software/firmware updates that will bring them even closer (examples from the XEDE world: open loop map tuning*, better datalogging*, WI or NoS maps, intercooler water sprayer control, launch control, flat-shift*, Wideband connectivity*,etc.; anything with a "*" is a next release item).
I own an XEDE, but from what I've read the UTEC would also have met my needs; it wasn't available when I purchased my XEDE, though. That said, my XEDE and the maps I've downloaded have been awsome - my car has over 12k with the mods (about 22K total) and it hasn't skipped a beat. As far as the tuning software for the XEDE, any decent tuning shop should be able to figure it out.
I own an XEDE, but from what I've read the UTEC would also have met my needs; it wasn't available when I purchased my XEDE, though. That said, my XEDE and the maps I've downloaded have been awsome - my car has over 12k with the mods (about 22K total) and it hasn't skipped a beat. As far as the tuning software for the XEDE, any decent tuning shop should be able to figure it out.
Originally Posted by batty
go with a reflash and buy a manual boost controller that is good enough and save u money
Nothing wrong with flashing, but I'm not interested in set-it forget it tuning.. Just reliable hardware that can be changed easily as the hardware is changed.
I can't wait to see what they (Vishnu and TurboXS) have in store for the future functionality.. I'll never regret my Utec purchase.. But at least this comparison is an apples to apples.. and of course, I'm trying to focus on the unbiased merits of the products, makes the thread a more valuable as piece of research data for potential customers..
Originally Posted by erioshi
The upcomming release of the XEDE will support a bunch of new features. I'd say the UTEC and the XEDE are both pretty close in features and functionality. Both of them are also close to releasing software/firmware updates that will bring them even closer (examples from the XEDE world: open loop map tuning*, better datalogging*, WI or NoS maps, intercooler water sprayer control, launch control, flat-shift*, Wideband connectivity*,etc.; anything with a "*" is a next release item).
Originally Posted by robertrinaustin
Take it to Shiv! 
Only kidding. This seems to be the most obvious difference between the two is the idea that the end user can tune the UTEC.
The technical questions I have are
Do they both use stock knock sensors?
Is one better at controlling timing?
Is there some functionality that one has over the other?
What's the best feature for both?
Only kidding. This seems to be the most obvious difference between the two is the idea that the end user can tune the UTEC.
The technical questions I have are
Do they both use stock knock sensors?
Is one better at controlling timing?
Is there some functionality that one has over the other?
What's the best feature for both?
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Originally Posted by BJai02
In fact, I will still consider a stand alone just because of the P0300 code that keeps poping up. If Mitsu has a fix for this stupid error code, I will be buying either UTEC or XEDE for sure.
One other correction I need to make, above I mentioned "open loop tuning", I meant to say "both open and closed loop tuning". I have to learn to not post at 2 AM.
The search button does wonders too! Maybe try that first next time? There was a long and very detailed thread about the differences just not too long ago: https://www.evolutionm.net/forums/sh...ight=xede+utec
mods: maybe these threads be merged?
mods: maybe these threads be merged?
