Im curious as to see how much power people have made with the UTEC. After all, it is cheating the ECU and I would love to know if people are making comp power to EMS users or if the EMS has better timing, fuel, etc... algorithms which make it better for squeezing it all out. Timing seems good enough as to our timing doesnt need to fluctuate that much to make gobs of power but the fuel control does worry me... The utec cant do a few things like compensate for dead time and I have no idea of how accurate it does this. Anyways, just some thoughts... Wondering if people are making well over 500 with the Utec (Either Evo's or anything else like Subaru's that use it).

 

With direct control of timing and fuel, there really should be no difference to the output of a standalone. I think the major difference has alwas been the stock MAF was (in my experience) Troublesome and somewhat restrictive over 600cfm of airflow..

The stock ECU will always be more "Drivable" but when you start getting to those levels of modifications, the only advantage of the UTEC/Stock ECU is honestly the OBD-II.. Until TurboXS announces new features we've requested, we're somewhat stuck with third party methods of eliminating the stock MAF and other things like "Two Step" and idle control hacks (MAF clamping at low readings, and tricking the IAC and BISS settings)

If it weren't for OBD-II, I probably wouldn't have the same patience with the UTEC as I've had..

 

In the suby world there a tons of 400 to 500 whp UTEC users. Two of my close friends used the UTEC with jdm ver7 spec C swaps one with a gt35r and the other with a fp green. EVOs on the other hand don't seem to have to many high hp UTEC users but I hope in time I wil be one of them. I had the UTEC in my suby and loved it and just picked up a UTEC for the EVO.

 

Ummm the UTEC can use MAP Sensor so that eliminates the the MAS right?

 

I do think the reason for that is the Evo users are either jumping directly to standalones, or sticking with reflashes and piggybacks for fine tuning.. Not sure if its related to their available "Funds".. Can't quite figure out how the standalones in most states are passing any sort of inspection now that OBD-II compliance standards are mandated in most states now.

Since I prefer to work with the stock ECU because of OBD-II I've never entertained the standalone route until recently.. I love tweaking, but I'm not so sure I want to spend that much time getting the car just to run.. but I'm close to that point.

 

Well mine is upwards near or 500 already. Once I get the tranny back I am hoping for more towards 550-580. I was just wondering if there was anyone else or anyone higher lurking around.

As you know i have now gotten rid of the MAF so thats not a problem anymore (Not that it SEEMED to be before anyways). Ill post up a thread about the difference in power and spoolup with/without the maf once the car is moving again. I did however notice a HUGE problem with my car and I am amazed that it did what it did before this little mod section. The BOV flange that was welded to the upper IC was not sealed at all. I was installing an injector onto the upper IC holding the BOV to twist the pipe and what not and noticed everytime I pulled on it, it LIFTED about a mm from that pipe. I then decided that i might as well try to see if I could pull it off to get it rewelded instead of trying to just fix up the old welds. I could pull it off with my own hands. It didnt peel any of the metal from the upper IC... just pulled off. Seemed more like it was glued on with a crappy epoxy than welded

 

Yea I need to be able to pass inspection so my best route for what I plan on doing is the UTEC. I have 272s, ebc, IC pipes, fp, HKS RS intake, tbe, UTEC, alky and possibly nitrous so the UTEC will be nice to have since I can have 5 different maps for the different combos of alky and pump gas and race gas. Plus I am pretty familar with using it from the suby.

 

I'll probably switch to the Hydra Nemesis for next season if TurboXS doesn't get any updates out soon.. I have too much at stake now.

 

Well... I did it for the simple common mistake of not knowing what I wanted eventually. If you look at it: Utec $1000, $400 MAFT Pro, $400 Zeitronix.. spend a tiny bit more and you get the EMS with its Wideband Controller. Hindsight is a b1tch

If I could do it all over again I would get an EMS... its not very difficult to use or to make the car run decently. Honestly, you spend just as much time adjusting the aftermarket MAF (Or in my case the MAP conversion) as you would getting the EMS to run well. And the EMS has more than enough variables to play with but dont need to unless you want to use them. Oh well I guess I can go for the fastest UTEC driven car (Or maybe I should hide some info and go with stock ECU claims ) It is technically the same as a reflash anyways so I should say stock ECU

 

i used to be worried about it but i dont think that should have an issue running what i am,

 

also tuning is everything as far as i think, you can have the fastest car and a crappy tune and your not going to get the results that your looking for