ok, I have emanage ultimate, should I consider getting UTEC? is there a power difference involved? also...what makes one different from the other? sorry i couldnt find my answer by searching. oops miss spelled title..sorry

-Sam

 

i suggest you take your time and acutally read some of the threads in this section:

https://my350z.com/forum/forumdisplay.php?f=448

i am sure you will find the answer there. especially the stickies at the top

 

 

Decide for yourself......

I recommend checking these threads out.

After some tweaking, I got my EU working perfectly, and it made good power.

But, the EU has crap control over timing, I believe unless you want to RETARD timing i.e. for F/I applications.

It cannot advance timing without the stock ECU getting mad and pulling it back out

https://my350z.com/forum/showthread....ght=rich+tuned
https://my350z.com/forum/showthread....ght=rich+tuned

 

What are the main difference between the UTEC and the EU?

I know the UTEC is tunable in 250RPM increments and has 10 load cells ((max tunable boost level - min tunable boost level)/10 resolution). The UTEC, for FI applications, is around $900 and is plug and play. Out of the box it drives the coils and fuel injectors directly and can modify the rev limiter and remove the speed limiter. It also has a boost controller built in. The maps are fully user tunable with free software and the UTEC can store multiple maps.

Wired, you got any info on the EU? I would love to know how it works.

 

Almost... TurboXS does provide a few conservative base maps to get you going in the right direction... But the base maps still require tuning to run optimally.

Only with an optional ($99) MAP sensor. Otherwise it drives injectors through an interpolation of the MAF table... Ie. Indirectly through the ECU.

UTEC can modify the rev limiter on non rev-up engines only.

UTEC cannot remove the speed limiter on any model Z, that requires an ECU reflash... (AAM, TS, UPREV are a few who do ECU reflashes)

 

You can set up maps anyway you like..

injector add/trim maps of RPM versus MAF voltage, or RPM versus throttle position, lets you select injector pulse width accurately

airflow adjustment maps (offset MAF voltage) of RPM versus MAF voltage, or RPM versus throttle position, I believe this is how a lot of UTEC N/A tunes are done... but I think the injector add/trim map is a better way of doing it

Ignition timing map just like above... the only problem is, the stock ECU seems to pull timing back out if you try to add it with the EU. I think you can pull timing with EU, but advancing timing doesn't seem to work too well.

If you hook up the pressure sensor (additional cost) you can do any of the maps versus MAP instead of versus MAF voltage.

You can do injector scaling for bigger injectors... in fact I think the EU may be a viable option for some F/I if pulling timing works ok.


Also, the EU has about 16 load sites versus the UTEC's 10. So better resolution.

If not for the timing issue, the EU would be the best EM for the money hands down.

Also, the EU can make adjustments based on intake temperature... can also take input from knock sensors...

search for threads started by Sharif@Forged, a long time ago he posted a huge thread about the EU

 

When I said plug in play I meant from a hardware perspective. Your going to need to actually tune any EM system to get its max potential.

I included the MAP sensor in the price (~$900 for both). I was only talking about FI applications, as I don't think many people will use the EU on an NA car.

Did Nissan change their over rev protection on the up-rev motor? I read somewhere else that the UTEC won't raise the rev limiter on the up-revs, but I am unsure of why.

Why won't it remove the speed limiter? If the UTEC is driving the coils and the injectors how is the stock ECU going to stop it? I guess I always just assumed it did that, maybe I'm wrong.

 

Ha, I just read a thread about using an EU on a NA car. So, I guess at least one person has done it. Anyway, my comments about the UTEC were geared towards an FI installation, as that is all I have experiance with.