I searched the previous threads. The only few ones that I found were here before the UTEC was even available, so here is a new one.

Pricewise, the UTEC is similar to the EU after all the accessories (harness, etc) are about same, less then a 100$ difference, so cost is not a deciding factor.
The Greddy catalog states that the EU can do ajustments on the auto trannies (like shift points or something? They did not provide much explanation there...). Does a UTEC have a similar function?

Abd does the EU still have the frying coilpacks issues?

 

Oleg, good to see the research is continuing

The UTEC currently doesnt modify shift points, or control the AutoTranny. Maybe with future fireware upgrades.

The EU has this control but I cant confirm if it works on the 5AT 350z. Maybe someone else has experimented with it....wish I could help more.

 

EU is more user friendly for us DIY'ers. Just need more custom maps availible.

 

Actually, the research is nearly complete. The last piece missing is EM. I spoke to Greddy today, and the 5AT control feature is just to adjust ignition timing in between shifts, not to change the shiftpoints or anything. I don't know how important is this feature and if this can or cannot be accomplished on a UTEC. Also, its the burning coil packs that makes me apprehensive about the EU... However, it would have been cool if I could use products of same brand all around (hint hint), so this is my new dilema. It took me over a year to pick out the FI kit, I hope it will not be the same case with this...


Except that I am not a DIY'er. I drive a 5AT. I don't even know how shift my own gears, do you think I would know how to do my own labor?

 

Retarding the timing is a good thing for these high powered FI auto cars. I do like the timing control on the UTEC though.

 

From your personal experience, is tuning a 5AT car any different as opposed to tuning of a 6MT? And does the UTEC allow for the necessary timing adjustments in my case?

And what does one need to run the Greddy at the standard 5.6 PSI safely? Just the BOV and a fuel pump? I want to get used to driving a turbo Z first with conservative power for a few month and then start upping the boost...

 

I would go UTEC... right now both units are pretty comparable, however I think going foward the UTEC will have more Z focused support behind it.

 

That is what I am leaning towards myself. How does it work with these system, when a new feature is developed, do you just upload it into the unit as if it was like a PC, or do you need to like buy a ton of additional hardware?
BTW, I noticed VQ30DE, you are drive a Maxima? Just curious?

 

UTEC updates are always free..and always downloadable off the TXS site

 

Thanks, another reason for UTEC...

 

Last night we tuned a 04' 5at convertible with a Greddy twin turbo kit, test pipes and E-manage Ultimate. No exhaust or anything else, and we got 360hp @ 8psi on pump gas. the car feels awsome. The EU is an awsome piece for an awsome price, be carefull because the utec is a new piece with a good marqup and alot of people are going to try to sell it to you. The EU has been prooven alot allready. my 2 cents.

 

Cool!
Did you make any use of the auto-tranny control feature of the EU?
And since I have your attention, which are your 5AT mods, if any?
BTW, the pump gas in where you're at, is it 93 or higher/lower?

 

The EU AT feature is for advancing or retarding timing when shifting. We retarded a few degress on the shifts to be safe. this car has no tranny mods at all and the pump gas here is 93oct.

From other a/t FI 350z here, the stock tranny is ok until 400hp after that is bye bye time.

 

So in other words at 5.6 PSI I am safe, but a tranny re-build is needed if I am to up the boost, right? That's encouraging...

Do you know if the EU is still burning coilpacks? I leave my car in hands of parking attendants rather often and they tend to leave the key in ignition.

And what about software upgrades for the EU? Is it free like for UTEC?

 

you could easly go beyond 5psi, just stay under 400hp. We haven't has any burn coil, and the firmware upgrades are free too.

 

So let me just clarify, 400 crank hp or 400 whp?
BTW, are you missing the 1-2 shift in full auto mode at WOT?

 

Edit/double post

 

400hp whp, and yes ; you have to shift manual. and hold on!

 

OK! I'll probably just do a valve body upgrade and the stick to 5.6 PSI while I get used to the FI. Then I will have the rest of my tranny worked on and start upping the boost...

 

sorry, is EU also stand alone?