Witch one is better in performance ?
Thanks

 

u shouldnt post same thing in 2 forums but probably better to be here, since all the guys in the vishnu forum are gonna say xede

https://www.evolutionm.net/forums/sh...threadid=85918

 

Really, neither is better in performance. Do you have someone to custom tune your UTEC or your Xede? Both will take expertise to tune from scratch, but Xede does offer tons of free maps for various levels of upgrades.

 

My admittedly biased opinion is the UTEC.. It is a little easier to install, however their both capable of similar things with the right tuning..

 

MJ,
If I was to hypothetically buy a UTEC tomorrow, how would I tune it properly to go with a full exhaust and hks cams and cam gears?

 

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?

 

Buy your UTEC from HARMAN MOTIVE in the city of Carson Cali. Speak with Dan Harman he can custom tune your UTEC to accomodate your mods on his DYNOJET!

You should send him your ?'s via e-mail to dan@harmanmotive.com

Great service too!

 

talk to ken at pruven performance (203)874-0393 he is a master of the u-tec with evo's. definately u-tec all the way the xede is like a beta -max.

 

the Xede has maps available for the common modifications purchased from Vishnu.. the UTEC doesn't yet have a large selection of maps for the EVO.. if you have it tuned professionally, both will work well.. If you plan on tuning yourself, then your at the mercy of your own devices.. that could be good or bad.. you can inadvertantly do damage.. But I think thats something that is always a risk with any engine management that gives the user the ability to make changes themselves.

The UTEC/XEDE make for good comparison because they are very similar from a technology standpoint.. they do more than a basic piggyback, retain the stock ECU and much of the safeguards associated with it.

The only negative thing I've seen with the XEDE is the install takes a little longer since (when I last checked) it required one or two wiring modifications to the stock ECU harness, where the UTEC required nothing in the way of wiring (everything plugged right in) This may no longer be true, but this was one of the few things that kept me from purchasing the XEDE.

Tuning is a bit of trial and error, however without a wideband O2 sensor it would be irresponsible of me to say that you can tune it "by ear".. Your combo of modifications is pretty basic, so the UTEC base map, with some revisions would work well, but nothing will beat a dyno tune with this, you'll see major gains. But the XEDE would reward you the same way if you had it dyno tuned.

I do have a map that would work "ok" with your mods, I intentionally removed the timing portion of my map since every car is a little different.

No matter what you get, I strongly suggest you get it professionally tuned until your comfortable with your choice in tools, and have the types of instrumentation required to safely tune the car.

I exclusively road tune my car since I have a wideband O2 sensor installed in my car.. And have made significant gains over stock (the numbers themselves aren't important since I have no way of directly comparing my data with real dyno data) but I've made run to run improvements that let me know I'm gaining power..

But Ray's also got a good point.. weigh the features, the tuning will be something you either have to learn, or have done..

 

93h and fmq,
you seem to not notice that the guy posting is from Florida. He can't drive across the country to get his car tuned.

 

Oh, I noticed.. Thats why its important to find out who knows how to tune a Utec/Xede in his area.. and go from there..

 

i'm sure kenny @ pruven could accomodate a tune for his mods with a u-tec. point being the u-tec is a better product by far

 

My feeling is that they both work great but at this point, only the xede seems to have great FREE tuned maps for many of the most common upgrades such as exhaust, cam gears, and cams.

Honestly, I can only think of about 10 people for sure that I would allow to tune my car and I am not one of them. I'm sure there are 20 or 30 more in the country that could tune my car great, and, once again, I am not one of them.

I will continue to learn as much as possible to be able to ask the right questions and do some basic stuff myself, but I have a job that pays pretty well and it takes up at least 50 hours a week. I wouldn't ask a tuner to run a level 2 expulsion hearing on a special ed student with oppostitional defiance disorder, and I wouldn't expect a tuner to ask me for advice on setting boost on an aftermarket turbo vs. timing advance for optimal high end drag racing applications.

I'm just glad there are a couple of good tuners in my general neck of the woods.

 

I agree 100% with MalibuJack, if you really want to see and feel the benefit from the UTEC and your mods you should have your EVO professionally dyno tuned.

Again, my recommendation is HARMAN MOTIVE.

Good luck deciding.

 

you should have (professionals) tune your car regardless. 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