Pleased to hear your comments.
Are you satisfied with the price / quality?
Thanks in ahead.
Are you satisfied with the price / quality?
Thanks in ahead.
Pleased to hear your comments.
Are you satisfied with the price / quality?
Thanks in ahead.
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!!!
I guess if you were building a twin engine NSX dragster this could be the ECU for you. :biggrin:
Dave
Dave,
Your info is invaluable as usual. I wish you were local. What do we need to do to convince you lovely Socal sunshine is worth it?.
I was also shocked to find out my 2013 BRZ has a WB O2 sensor and software such as ECUTek is allowing so many tuners to do "Internet" tunes. Seems to be all the rage in the Subie world though I don't trust something I don't fully understand...yet.
Given the basic sensor upgrades to an OBD1 NSX (i.e. WB O2, IAT sensor, oil pressure, fuel pressure, coolant temp, maybe EGT, etc) would the platform be able to take advantage of a more advanced ECU like the Infinity or Pro128?
I'm simply trying to get the most bang for my hard earned dollar but willing to pay up front for added safety measures. The EMS S2 seems like a stout enough unit but the Infinity/Pro128/Motec just seems entirely on a different level to me.