The ProEFI user software has been available for quite some time, I have been using it for the better part of 6 months. On my 2006, I don't get CEL's unless I take control of the DBW and Variable Cam, so it would pass emissions when the time comes. The ProEFI and Haltech are both stand alone computers. Just on the Z they are run in "piggy back" mode. What you leave the stock computer in control of with the proefi depends on what you have it set up to do.

 

I guess for the most part what ever you leave the stock ecu still handling are things it already does well,a nd no reason to reinvent the wheel from what nissan did.. +1 on them not being piggy backs

 

Here is some info on the ProEFI:

12 Injector drivers - All with built in Injector drivers!! Perfect for a twin injector setup on the Supra!!

16 Coil Drivers - Yes 16!!! No more waste spark!!

32 Analog inputs!!! - There are 32 analog inputs which will be preconfigured for anything you want to do... I.E. plug in a fuel pressure sensor and it automatically activates the trims associated with it. Put a Nitrous pressure sensor on your car and the computer trims fuel accordingly to bottle pressure!! You can datalog everything imaginable!!

10 Low side driver outputs - You can configure these to do whatever you can imagine. Also these will all support 4+ amps each!!

Built in wideband!! - That says it all!!

True volumetric efficeincy - So things like injector and pressure changes don’t have to be calculated and multiple maps changed, it’s all done in the background by simply entering your injector size and base fuel pressure. Actually knowing the injector size and fuel pressure, this allows us to make instantanious feedback changes to things like fuel pressure not staying constant, without relying on the O2 sensor for delayed information. Changing fuel type is as simple as entering the stoichiametric ratio for the fuel used.

Fault coding – Check engine light will tell you fault codes to help diagnose problems. Actions can be assigned with the fault codes. I.E. low oil pressure triggers a fault code, and activates a low rpm limiter. O2 sensor faults will automatically turn off block learning and closed loop feedback. Also the fault codes will be the same as the original ECU!!!

Traction control – multiple comprehensive traction control strategies including defined wheel speed differential between driven and non-driven wheels.

True knock sensing capability with specific knock frequency detection based upon the specific engine being monitored.

Multiple failsafe conditions making it nearly impossible to damage your engine in the case of tuning errors or mechanical malfunctions. I.E. lean, and knock conditions can be used to turn off nitrous, shut down boost etc….

O.E.M. manufactured ECU’s – The ECU’s are built by an O.E. manufacturer, so all ecu are 100% tested for vibration, temperature, loading etc… BEFORE you install them into your vehicle. Pro EFI ECU’s are as reliable as the factory units you take out. No more being stranded on the side of the road, or waiting weeks or months to get and issue repaired with the confidence of rolling the dice.

Drive by wire capability!!

Nitrous control:

Up to 4 stages!!

Control by speed, time, gear etc.....

Just enter the number of jets, jet size and target a/f and it does the rest!!

Add a nitrous bottle pressure sensor and it adjusts accordingly to pressure!!

Unlike other ECU's, you can target different a/fs for Nitrous with this unit in closed loop, or open loop, since the computer is based soley on V.E. it doesn't rely on the O2 sensor for hitting the desired a/f ratio. It does this based upon volumetric efficiency and desired equivelency ratio. Therefore there is less work for the O2 to do in closed loop, eliminating the chance for lean spikes typical of running nitrous!!!!

Fuel pressure compensation:

With the simple addition of a fuel pressure sensor, the computer will monitor and compensate for various fuel pressure. Lets say that you have a pump that is tired and your fuel pressure is not rising 1-1 any more. The computer will know and add neccessary fuel. Also if the pressure really gets unstable causing the computer to add too much pulse width, it will trigger a check engine light. It can also be set to initiate fuel cut, turn off the boost control, shut off NOS and lower the rev limiter. These safe guards can be triggered by the fuel pressure alone, by O2 activity or a number of other things!!

Boost Control Strategies:

Will be able to utilize dual solenoids to control pressure to both the top and bottom ports on any wastegate. This will give you VERY accurate control!!

Will be able to control boost by speed.

Will be able to control boost by time. Therefore if you spin the tires, and the vehicle speed sensor puts the boost map into a zone for higher boost.... the computer will know that it is wrong and hold the boost down until a certain amount of time.

Will control boost based on traction control. Traction control will be based on wheel speed differential!!

This computer will also know what gear you are in by simply entering gear ratios from the service manual, rear end ratio and tire size!!

Lean condition safety features:

In the case of a lean condition under certain circumstances (IE load, time etc) the computer can be programmed to shut down nitrous, lower boost, initiate fuel cut, initiate a rev limiter for a programmed duration of time until safe conditions return. This can also then be programmed to throw a code and activate the check engine light.

Misfire detection:

No more guessing if you have a misfire. This computer will tell you which cylinder and how often it misfires!! Think about how valuable this will be!! You will know instantly when it is time for new plugs.... or a coil pack is going bad....etc!!


20 channel thermocouple capability:

Yep..... 20 channel!! Put one in every runner..... downpipe..... anywhere you can think of!! This is critical in tuning an engine to run exactly the same on every cylinder!!!

 

Thats it????? lol jk

Tom

 

More;

The knock control is amazing and is adaptive meaning that if your car is constantly knocking as in a bad tank of gas, the ProEFI adaptively changes your map. Once you get a good tank of gas back in it, the ProEFI will put the timing back in!! Also the instant knock is cylinder based so the ProEFI only retards the timing in the needed cylinder. Remember it is based on time and frequency just like factory.


New variable boost control is working. All you need to do is wire up a potentiometer and you will have 5 levels of boost curves. Notice that I am saying boost curves not just boost level!! Why would you want to run 30 psi in first gear if all that happens is your tires go up in smoke? You will have 5 complete curves based on vehicle speed so you can keep the boost pretty similar in the lower speeds and turn it up on the top end when traction isnt a problem!!

He is also working on the flex fuel code now that will tie fueling, spark and boost control all into the sensor. THerefore the computer will know how much boost to run based on your blend of fuel and will automatically raise it for you when you put in the E85!!

Pretty cool stuff!!

 

oh.... the wheel speed traction control is amazing too!!

and the consumer software has been available for a long time now so anyone can tune it!!


and the 128 and 48 box both keep the factory OBDII port functional!!


oh the variable methanol control is awesome.... automatically raises boost if the meth comes on, goes to a diff timing map, trims fuel etc.

 

^ you guys are mixing up the feature sets of the 48 box and the 128 box, again. The fact is that the 48 box that most every Z/G has run to date doesn't even have enough coil drivers to drive fully sequential ignition (only 4 coil drivers, right?). I know you guys say it's not needed and that's fine, but at least clearly state limitations or differences instead of cramming all the above posted marketing hype together so consumers can't figure what they actually get. I think you have a thread somewhere that has all of this sorted out and we went through that there - just a link would be sufficient rather than rehashing this debate all over again.

 

No, the 48 units have 8 coil outputs, so still direct fire!! The 48 units do not have speed inputs so we cannot get wheel speed data for traction control. Jason is almost done on deciphering the nissan can bus data so then we can get wheel speed data that way. Although the factory traction control still works!!

 

Ah ok. I stand corrected. I could've sworn there was some limitation regarding sequential ignition, but if that has been addressed, all the better.

The CAN bus integration is one of the features that I have enjoyed with the Haltech. It is apparently a PITA to maintain though, because different model years Z vs. G apparently use different packet IDs for communication across the bus. Just because you get it to work on your shop Z doesn't mean it will work on others. Something to keep in mind...

 

Doesn't the thread title "Haltech vs ProEFI" warrant and suggest this being a debate? There's a plethora of threads about every major engine management used for RWD VQ's on this board, so suggesting that a ProEFI specific thread should simply be pointed at and not be rehashed here is a contradiction to any/all new threads started to determine what current, up-to-the-date, variances/differences may have arisen since the last major update/debate of said engine management systems.

Lar,

You guys run ProEFI in your low 8-second, stock 6-speed, street 350z, correct?

Darren

 

Of course we do. Seriously why would anyone run any other ECU? Nothing has all the capabilities of the ProEFI!!

 

I know of another ProEFI equipped VQ on the horizon that will be setting a new world record.

 

^ahh you just hopped on the fail boat with that comment.

kiss of death, bragging about unfinished projects.


In that laundry list of impressive features, seems like most of th really cool things are on the 128 ProEFI. Is anyone even running that? And sure those features are might be available on paper, do they all work?

Very impressive nonetheless.

 

What does ProEFI have that the ViPEC v88 doesn't?

http://www.vi-pec.com/page_files/V88.html

Not picking an e-fight or being a d***, I am actually asking because I would like to compare the two.

 

Actually the Vipec looks very nice. Looking through the feature list it is very well equipped!! The ProEFI has everything that the vipec has though. The ProEFI also has adaptive learning which is just like a factory computer meaning it is constantly updating its maps in case they are off. How much is that vipec system for the Z?

 

Comparable in price to the Haltech. The only add-on I needed with it was an EBC.

 

It is my understanding that the Vipec (like the Haltech) has variable cam tuning working now. I haven't heard of a ProEFI unit (even the 128) that has cam control working for the VQ. I know the stock ECU can be reflashed to control cams so it may not be considered critical, but it is still a difference in functionality.

 

From what Larry just said and from what was mentioned earlier, a big concern for many of us and especially me is the OBDII being retained to pass inspection. So the 128 was said earlier to eliminate the OBDII and Larry just stated that it will retain the OBDII. Will the 128 operate as a piggyback with all the bells and whistles and still allow people to pass inspections with the OBDII system?

Second of all these features that pro-efi has are great, which of these does the haltec have or not have? Looking for the comparison to see the breakdown. What would be realistic features for a street car only to have to have?

 

The Haltech is a fully independent fuel, timing, and cam controller. It was designed from the ground up specifically for the 350Z and so some things are farther along (e.g. CAN bus integration for wheel speed sensor data based traction control). It has exactly what is needed (6 coil drivers, 6 injectors, etc). The 128 ProEFI unit has many extras and I can think of some clever uses for those, but I doubt many street cars will take advantage of those extras.

All of the units that work in conjunction with the stock ECU (even the ViPEC I believe) allow the stock ECU to handle all the OBD, so they all will allow passage of emissions, but it is not always easy since the stock ECU and the aftermarket EMS are not always in sync (by design). The impact this has can be very much dependent on how much time the tuner spends on your car and their experience level with such things.

The bottom line is that all units being discussed are very capable from a hardware perspective. It comes down to support and ongoing development. Contact SP and IP - talk to Larry and Hal. I think a few minutes spent talking to each will give you a much better idea of what you want to go with for your build as you'll be able to target your specific requirements/priorities. Ray at PFS must have some thoughts and if he is your tuner, I would weigh his opinion heavily.

I'd be interested to know what you end up deciding to use. Good luck.

 

does the ProEFi come with the harness? I would guess not.

So the Proefi 128 is 3000$, while the fewer functioned 48 is 2000$

but the fuel pump control, and input/outputs on the 48 makes it quite nice compared to the haltech. Like Raj said, no cam control but how much power are tuners making from cam adjustments.

dont hear much about that.