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UTEC TurboXs


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... I've been doing a bit of reading on this, basically a stand-alone managemnt system?

 

If I understand correctly, you'll have decent gains on N/A and if/when you go FI you'll already have a very good management system.....

 

 

question is.... is it going to work on our UK cars?

 

 

Anyone?

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Guest prescience

As you've no doubt discovered from your reading (as I have) the UTEC is the next generation in EMS for 350z.

 

It is still works with the stock ECU in place but effectively is in complete control of the engine fuel, timing etc. Other than that, one major difference to other piggy-backs (there are a few differences) is the ability to set timing directly. Other piggy-backs set a timing offset, so you're guessing what timing advance the stock ECU is applying in a given situation. This seems to me a major improvement.

 

However, as we all know, in the past when a modification (e.g. higher flow exhaust, better designed plenum etc) has been made there is often a temporary improvement in performance but evidence to suggest that somehow the stock ECU learns the mod. and dials the improvement out - at least at top-end revs; there still seems evidence that mid-range gains are retained.

 

With the UTEC, there is the real potential that the improvement from the modification can not only be retained long-term but be optimised.

 

Questions remain, which will become clearer over time no doubt. For example how does the UTEC respond when we put 95 RON fuel in. It has a knock sensor and we can only assume it works in the same way as the stock ECU by reducing timing advance during knock - but does it do this progressively or with a fixed offset (strongly suspect the former). We need to be assured that the UTEC has the same safety criteria inherent in its design to ensure safe and reliable operation.

 

The most major point is as you have raised above is the need to get a tuner competent to tune it. This does not exist at present AFAIK in the UK and no doubt it is a specialist skill. You're trusting your tuner to do as good a job in getting your car to run safely as Nissan R&D did.

 

One consolation is that I believe a variant (earlier and simpler by all accounts) of the UTEC is in regular use on Scoobys - so that may be one tuning avenue.

 

IMHO until the tuning question is resolved, spending probably about £1k on this is questionable. Although longer-term, that may change.

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The Z UTEC works similarly in many aspects to the WRX one provided yo are tuning via MAF. For you forced induction people, tuning is done with the MAP sensor option - frankly any competant tuner who is used to standalone mapping via MOTEC, GEMS, AEM EMS, Electromotive, etc will have no issues programming it at all. Like any other system, it takes a bit of time to learn the ins and outs, but it is very user friendly, and its combination of on board datalogging and integration with a wideband 02 via the Tuner or Tuner Pro makes it a great combo

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Guest prescience

How easy is the install - compared to say SplitSec with Vortech.?

 

Does it come with a ready-fit harness?

 

Can it be shipped with one of the maps pre-tuned (safe) for Vortech S/C?

 

Another great feature I heard about is valet mode - to stop these Nissan boys thrashing the nuts off it when its in for service :teeth:

 

Great input BTW :teeth:

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Adam, this is (I hope) the chapter on our UK manual where the ECM (as they call it, not ecu, I suppose it's the same) is analysed in detail, I'm sure you'll be able to find out if it has the same pinout diagram as the US one (for compatibility with the UTEC). It's over 6MB though, I'll have to email it to you as it wont seem to upload it

 

:dry:

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Guest prescience

Here is the answer to my question on knock-handling courtesy of info. on ForgedInternals.com.

 

Basically, the UTEC detects knock and you can set the threshold at which ignition retard is applied, how much is applied and when it is 'unapplied'. Full control therefore :p

 

Knock Control- This feature allows you to help keep your motor in one piece. The UTEC contains default knock thresholds but can be adjusted at 1000 rpm increments up to 9000 rpm. It also contains a Knock Count threshold that allows you to define how many counts of knock before the UTEC will respond with a Knock Retard Step. The Knock Retard Step is the amount of ignition timing that will be pulled per knock count to a defined Knock Maximum Retard. Knock Maximum Retard relates to the maximum degrees of timing the UTEC will retard per knock event. When a knock count is registered the UTEC will hold the retard for a set number of crank cycles this is called Knock Retard Duration. The UTEC also has the ability to apply a global Knock Correction to the entire map once a knock event is evident. This will help ensure that you keep your high compression monster together. All of these features are the UTEC’s safety net. They should be used pro-active not as a reactive measure.

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From my old Celica days, you lost quite a lot of 'European only' ECU stuff when you swapped over a replacement ECU; to wit, the immobilizer, climate control, and some other in-car electrics.

 

Any danger of that happening here? I know it's an 'advanced' level piggy back, but would there be any ECU stuff that would cease to work with this unit?

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Any danger of that happening here? I know it's an 'advanced' level piggy back, but would there be any ECU stuff that would cease to work with this unit?

 

since there is noone in the UK with one mounted on a UK car, we can't know for sure, but there is no loss of ECU specific "commands" like cruise control on US cars

 

better? :bleh:

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now now......sounds like GOOD NEWS!!!! :teeth:B) Dorian could you send jermaine our ECU pinouts pls? (or send it to me if you managed to just send 1 page of it from the file I sent you originally)

 

Although what worries me is the fact that TS or AAM (thet reflash US ECUs) have always said they can NOT reflash a UK or Euro spec one..... hmmmm :dry:

 

 

email:

 

That sounds like great news! I will let you have ECU pinouts soon.

 

Anyone you would recommend to install and tune your UTEC then in the United Kingdom???

 

 

 

Thanks again Jermaine!

 

PS surely I've seen you posting on 350z-tech.com? We are in partnership with Josh, btw.

 

 

Valerio

 

 

 

 

> Valerio,

>

> All of our records show that Nissan has been using the same ECU for all

> VQ platforms. We currently have JSPEC, USDM and Australian model Z

> running out ECU. At this point I am willing to say yes the UTEC will

> work on your European Vehicle. If you have the ecu diagram I can compare

> pinouts to give you a definite answer.

>

> Thanks,

>

> Jermaine~

> www.turboxs.com

> 301-977-4727

>

>

> -----Original Message-----

> From: TheMinel [mailto]

> Sent: Sunday, January 22, 2006 8:51 AM

> To: info@turboxs.com

> Subject: UTEC TurboXS for Euro Spec 350Z

>

> Hi there,

>

> I am admin of the UK 350z community at www.350z-uk.com and have a few

> questions with regards to the above product:

>

> I read on various US 350z forums the information about your new UTEC for

>

> the Z and am interested in getting one for my normally aspirated Z with

> mods, with view to using it when I'll eventually go F.I.

> My questions are:

>

> will a US UTEC work with my UK ecu? (we are trying to find out if the

> ECU

> pinouts are the same as the US cars, but if you know this please let me

> now)

>

> If a US UTEC won't work, where can I get a UK UTEC from?

>

> Where can I get the UTEC tuned at in UK?

>

> Any other info you might have is appreciated

>

> Thanks in advance

>

>

> Valerio

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Guest prescience

No I sent the whole file to Phunk; suggest you therefore send same to Jermaine as you sent to me

 

OK I'd better do it as you may not have a fast connection

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