I posted this in the Vishnu fourms...

https://www.evolutionm.net/forums/sh...076#post798076

Was wondering if anyone would help with the question at hand...

Does anyone have any experience with the new UTEC for the EVO and if so...how does it compare to the XEDE from Vishnu?

I am really torn on what to get and want to make the right choice. I want something tuneable because I make upgrades every once in a while when I don't feel the speed of the item I put on not too long ago...also known as a boost fix! LOL

Anyways...I would really appreciate some help on this.

Thanks to anyone that responds with some good info!

 

While I could spend a great deal of time running down the differences between chiptorque’s xede and our UTEC, I’d rather leave this up to our customers who have actual experience with both. I know one user that has done the switch and will report his results soon.

When it comes to actual power production if you achieve the same ignition timing, boost and AFR with both units, power output will be identical.

If I say much more it will no doubt turn into a flame war.

 

Cool...thanks! I wasn't looking at the power output possibilities but more twords the main differences of the units. Like what the UTEC can do that the XEDE can't and vice versa.

 

Dont flatter yourself Nathan. Like Ive said before the UTEC will be every bit of serious of tooning tool as the Xede. If those knock attenuations are done right just as safe too. At this point we are looking at the extra features involved and the Xede and Utec both will controll waterspray/ N2) have WB and Datalogging/ Muti maps (Utec will have a few more) /Launch control and flatshift/ the UTEC will have a nifty gameboy interface and a graphing funtion.

The most pertainant question is what is TXS going to do to address the boost cut in the midrange and rev limits? Are they going to have a propietary flash to go along with the UTEC or are they going to trim a good amount of TQ/HP tuning around the cuts?

 

I knew you were an "end all be all know it all" LOL! That is the EXACT answer I was looking for MP5! Thank you!!! ^5 Bro.

Now I think I have it all sorted out.....now if Vishnu will get back to me concerning the e-mail I sent them I'd be all set!

 

I just switched from the Xede to the UTEC. I will have a more detailed report after we goto the dyno in two weeks. Personally I like both products and have nothing to gain by saying one is better than the other. The Xede worked great as has a huge knowledge base here which is a big plus but knowing the UTEC in the WRX world I wanted to see if it could improve on anything. So my 2cents... Playing with it on the road, first off I feel the logging is much better on the UTEC. For one it will log timing without having to have another laptop plugged into the odb2. UTEC for me is easier to know what it going on in the timing department. I can log it easier and the UTEC actually controls the timing so 10 degrees of advance is 10 degrees. When you set 10 degrees at 4000rpms that is what you get. It isn't an offset like in the Xede. That just made things much easier for me to figure out. Get their wideband unit and you can have everything logged in one csv file. It also will log knock and flash the check engine light when it senses knock. I found this along with my knock link to be just another tool to help. Another cool feature is the launch control and flat foot shifting. Haven't done launch control but the flat foot shifting is very cool. Huge grin factor. And another note is the although the Xede's harness worked fine, when you get the UTEC and pull it out of the box the first thing you notice is it looks much more solid and is a high quality piece. There is no re-wiring of the boost wire. Its 100% plug n play. So far very impressed overall with the UTEC. Hope to have dyno numbers and more details and feedback as we learn more within the month.

 

I am not flattering myself; I am trying to avoid a direct and somewhat biased comparison between the two products in favor of a customer based response as that’s how the rules of this site are written for vendors. We are not at this time a vendor, but we are operating under the vendor rules in our posting.


Tooning? I disagree with you on the basis of the comparison between the two products, but will refrain from comment other then saying that the UTEC hardware is far more capable then the UTEC software. The new WRX version 4.1 software demonstrates a little bit of the UTEC's ability.


There is no knock sensor attenuation in the UTEC. There is user programmable knock detection/correction, but there is no attenuation of the stock knock sensor signal.

Again I'll leave this comparison to the customers that have actually used both. Talk to the guys at PDX if you want an unbiased opinion.


We will do exactly what we did with the WRX market by releasing software version 4.1. We'll eliminate piggyback fueling under load.

 

Quick Q about the UTEC....

I know the XEDE can control boost...can the UTEC? Will I still need a MBC/EBC?

Thanks

 

the utec can control boost with close loop boost control. you will not need any other form of boost control.

 

Cool...Thanks Blonde!

 

Good summary I cant wait for a more indepth. About the timing control The Xedes is static also But an offset of the factory curve witch to me simplifies things significantly. I dont see an advantage of not having an offset as it can lead to way off base timing in certain zones.

Nathan You know what Im talking about with knock attenuation. Users should be given a fairly accurate knock adjustment/ attenuation/whatever you want to lable it as so it would be very hard to for a car to be driving around actually knocking when the user is unknowledgeable about knock control and expecting to be safe with the UTEC. Knock control is professional tuner stuff and not for street tuners (myself included). I had a major headach trying to dial my wrx one in and 50K later #4 was gone (I am not blaming it on the UTEC I take full responsibility in my ignorance at the time but unfortunately it was a hard subject to grasp and coincidentally there were a ton of scrap EJ20s)

Nathan Tooning was a joke it was put there on purpose- As in user "toonable"

 

Interesting so it relies on the efficiency of whatever turbo is being used. You got confused didnt you

 

out of turboxs website:

Fuel, ignition timing, and boost are programmable in 250rpm increments up to 9000rpm over 10 load sites
Complete ignition timing control
No need to worry about the factory ECU pulling timing anymore
Be as aggressive or conservative as you want or just let the factory ECU determine timing at any point in the map
Fuel control
Controlled via MAF sensor signal offset
Tune stock and larger than stock injectors
Load reference
MAP (manifold pressure)
Closed loop boost control programmable via Throttle Position and RPM No more re-adjusting the boost controller due to changes in temperature or altitude
Keeps boost low while in closed loop fuel mode for reliability

 

Forgive my noobness, but being that the Utec is static, from my understanding, with the Utec, the stock knock sensor is no longer being utilized, and therefore the ecu cannot correct by pulling timing when it feels necessary based on teh stock knock sensor. Is this correct? Or am I just really really confused?

Ken

 

Static means that the UTEC IGNITION timing is is a pure value not an offset. It doesn't mean that we don't take the stock knock sensor into account.

Page 29 in the manual:

7. The values that are typed in each RPM/Load point in the timing map
are actual ignition timing in degrees "Before Top Dead Center" (BTDC).
The UTEC will fire the ignition coils based on those values. If an "e" is
programmed into an RPM/Load point, the map will show "ECU" in that
load point, and will fire the coils at the same number of degrees BTDC
that the stock ECU would. For example, let’s assume a value of "25" is
programmed into the map at the 5000RPM/80% load column. If throttle
position is greater then 25% the UTEC will fire the coils at 25 degrees
BTDC when at that load point. In the last example, if throttle position is
less then 25%, the UTEC will use the value in the 5000RPM/0% load
column for it's ignition timing. Typically "ECU" will be programmed at
that point.

Jermaine~
www.turboxs.com