trying to get some of your inputs on what this box is all about quality wise, or defect?
PRO EFI 128 to be exact.

my choices are V2 box, EFI, MOTEC.

shure motec is at the top, but dont think i need a 5k comp to run fast. sure its more tuner.

 

I was thinking about using this for my next setup. It seems to be a big thing in the Supra community. I haven't heard of anyone using it on a Honda on here but if there is I'd like to hear some feedback on it to. Seems like a good unit and has a good price tag to.

 

We can get jumper cables for the Pro 48 box that hooks right up to most of the Honda applications.

We also have access to the Pro EFI units.

 

Honda K-series jumpers?

 

I just picked up the ProEFI Pro48 EMS, harness, etc. for my G35 coupe!

My brother has had ProEFI on his single turbo 350Z for two years now; we have a friend that’s been using the 48 on his supercharged G35, and another with a built, twin turbo 350Z.

IMO, it’s possibly the best EMS on the market when you factory in cost, features, etc.

 

I agree it is one of the best.

 

proefi=jason seibels
jason seibels=fail

 

thats exactly what i was told when i asked my tuner about it...

 

^ Any reason why?

I purchased my ProEFI directly from Jason, I’ve had zero issues with the purchase and I’m scheduled to return to ProEFI out in Scottsdale, AZ for tuning later this month, I’ll let you guys know how it goes…but everyone that’s referred me to ProEFI hasn’t had any issues either.

He tuned my brother’s stock block, single turbo 350Z on a ProEFI almost two years ago and it’s been running great ever since.

 

wow doesnt seem like its big at all with hondas, might have to change that, lol

whats the deal with this Jason guy? he said she said ****?

 

Yeah, I’d be curious to hear some actual firsthand experience, not just some hearsay or according to a friends, friends…

 

mkc in kansas city ran it for a while, but went back to neptune

 

My brother has it on his Supra. Seems to be rock solid so far but he's only put about 1000 miles on it. There is a lot of options (ethanol content monitoring using a flex fuel sensor, can gauge, traction control) that make it pretty nice for a street car.

I would love to hear some actual information instead of hearsay from the people above.

 

Not worth it, get a Motec you'll be much happier!

 

She's right man....

 

What specific issues did you guys have?

 

some of the supra guys run it with pretty decent success.. It seems to be pretty decent quality wise but there isant quite the large vehicle base as the AEM and Motec units.. I hear the traction control is pretty decent..
if i had to do it all over again i would save up and go Motec..
-sam

 

Pro EFI is basically a Motorola 555 ecu. It's used in most Mercury Marine Engines..
It's very reliable and well built...

What bothers me about it is very simple.
Jason Siebels..

It's Autronic or Motec for me. Thanks..

 

It's all about your tuner and how he knows to utilize the system. I know Larry @ SP pretty well and he's one of the best tuners for the Proefi system. so with that said I have it on my supra. if i lived in florida by titan or by tony palo i'd get motec. It's that simple. You take a proefi box to a tuner that doesn't know **** about it it's worthless. Talk to your tuner, see what he likes the most and what he knows.

Beyond that I'm in no way an SP nutswinger like everyone in the midwest that owns a Supra. But you can't beat this box. Price has gone up over the last year or so but its still very affordable. I look at this box up there with Motec. with better features and the same quailty. I actually bought my box used and was one of the first boxes to be put out in production, got loaded with the new software and e85/ trac/ i boost tune a few months ago. The possibilities are endless and i don't even know that much about the tuning end.

cool things i learn n have setup.
-a/c compressor kicks off at 80% throttle or more.
-you set a target afr mine is 9.3 on e85 i believe but it moves depending on boost/ ethanol content. the computer automaticly is adjusting fuel to get to that target afr.
-i have low timing maps for 18psi and < high timing maps 22psi & >
- Can guage kicks so much ***. - EVERYTHING I mean EVERYTHING is in this MPG is one of the cooler things on there i like. Its based off injector flow and wheel speed fomula. - there is a new guage or mass of guages in one its looks like a fish finder. its a 3"x4" screen. With even more crap to look at.
-I boost - I have maps at 15,18,22, 26,30 psi. at the twist of a ****. I used to have all boost levels based off of ethanol content which worked well but i can't get trac at 22psi let alone 26 or 30psi.
-fuel pressure sensor-automatically cuts timing- saved my motor when one of my 044s failed during the tuning process.
- Most factory sensors will work with the Proefi config. such as engine temp, wheel speed, and most other basic sensors.
-boost by gear

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!!!

 

^^ damn sales man right there, lol

thats alot of words.

its already a done deal. im getting the box, cant beat the price.
we will see what happens.

does it have internal data logging?

 

Yea at an additional cost. Call Reid at Sound Perfomance and see if they are doing any doing any sales or promotions.

 

jason seibels was'nt he one of the people behind the aem ecu??

 

yes

 

Talk to your tuner. I would go with a MoTeC over it but that's me

 

motec is over priced in my opinion.