Hey guys I wanted to introduce this as an option for a piggy back fuel computer.

This new piggy-back system is similar in function and design to the super-popular HKS VPC (now discontinued), however, the MAP ECU takes it one step further by allowing end-user programmability through Windows based software via a serial com port. This means that the MAP ECU can replace piggyback fuel computers such as the Super AFC, Emanage, and AFR. Basic setup takes only a few minutes, and allows the user to set number of cylinders (1-16), type of air metering system, throttle position hi/low, and type of oxygen sensor utilized (if any).





The powerful yet easy to use software allows the user to monitor ECU inputs and outputs in real-time, make real-time adjustments to MAP ECU tables and parameters, manipulate data in 2D and 3D formats, and log critical ECU data for evaluation at a later time. The MAP ECU operates as a “piggy-back” control unit, allowing the user to maintain perfect driveability and reliability with the OEM ECU, but modify the fuel mapping parameters for larger fuel injectors, different camshafts, upgraded turbochargers, and forced induction conversions.

Most importantly, the MAP ECU converts the factory restrictive Mass Air Flow (MAF) or Karman-Vortex (VKF) signal to a speed-density based signal allowing the user to completely remove the factory meter system. This adjustability means that there are no more EPROM changes, and gives coverage for over 90% of current production cars on the road today. One of the most powerful features of the MAP ECU is the ability to self-learn from factory MAF or VKF meters. This feature means you can build a base fuel map using factory components then install aftermarket components and adjust the mapping to suit your needs.

Some other features of the MAP ECU include: • Wide band oxygen sensor input for monitoring and logging the air/fuel ratio in real-time (Bosch LSM-II sensor available separately), or can use the factory O2 sensor. • TPS input for throttle based fuel enrichment • Dual pressure switch circuits to activate auxiliary devices according to manifold pressure. The pressure switch circuits are perfect for activating additional fuel pumps, NOS systems, or intercooler spray bar systems.

A basic installation of the MAP ECU requires connection to only four wires (+12v Ignition, Ground, Igniter input, and Air Flow Meter input to ECU) making installation easy for even the inexperienced installer. Advanced users can also connect throttle position and external air temperature sensor wires. The MAP ECU features a built-in 30 PSI pressure sensor with a customizable pressure scale, 0-8000 RPM engine speed scale, and can be connected to any 1-16 cylinder engine. Firmware and software updates will be available for download in the future as needed, and may include added features that are not yet programmed.

 

Yeeeahh, I've seen that thing.. If I were going to spend $900 on a fuel computer I would just keep saving my money for a full standalone.

 

Well it depends how you look at it; a standalone will take hours and hours of tuning and babysitting to get it right. The map ecu piggy backs off the factory ecu so all the daily stuff is already there. You wont have to mess with cold start and different offset temp settings, knock retard and the list goes on and on. I have had both the MAP ecu and an AEM EMS on my Supra and can tell you the MAP ecu is the way to go for a street car. There are just to many varibles with a stand alone. Also tuning a standalone can cost $900 alone so if you look at it that way it is a lot cheaper than a stand alone.

 

have you used this on a 350Z yet though......

 

the question has been asked. No we haven't. We have how ever got the unit to work on a 03 is300 which is the number one pain in the A*S computer to deal with.

If someone is interested in the unit I will work out a special price for the unit and a return policy if their is a problem.

Greg

 

PowerHouse Racing, our sister company, is the sole US distributor for this unit. I had one of the very first units go on my personal car and could not be happier. The tuneability of this was fantastic. The car started right up and ran no problems the first try. We left it on learning mode for several days and it helped to fill in its own gaps over the few days. Then the fine tuning was done and it's worked flawlessly since.

Everyone does seem to compare it to a standalone, which of course it is not and is not meant to be compared to. Greg put it very well in that it is not a standalone and the simplicity of it is very good. You get 420 different tuning points along with Wideband log, Nitrous control, and future software upgrades will only bring more features and benefits.

If you want something simple and straight foward for a piggy back and want near total control of your vehicle without going with a standalone, the Map ECU is the way to go.

 

so why is this better then the Split Sec box?

 

Probably because it's almost the same price as a standalone.

The E-manage is 1/3 of the price, and seems like it does a lot more. Once AEM makes their ems for the Z it will only be about $300 more than this thing. The AEM ems is a great standalone, but I am not a fan of their other products. They purchased a small company and labled thier EMS as an AEM unit and made it plug and play. It fits the factory wire harness, and comes with already tuned base maps.

I would rather pay a few more dollars for a fully tuneable unit.

 

I like this unit. But the benifits of a MAP based system of fueling are debatable on the 350z F/I application. Unless boost is increased well above 8.5psi or so, I see limited benifit to switching to a MAF. And at a $900 price tag, I would probably just buy the MAP sensor upgrade for the Emanage and be done with it.

Question. If you have a base map at 6psi, and then turbo up the boost to 8psi, with this MAP based system automatically compensate with more fuel? I assume it would..just like a MAP based Greddy system would.

 

A base model AEM EMS yes will of course only be a few hundred dollars more and go right into the stock ECU. However, the few hundred dollars more does not include the many harnesses and sensors that most people will purchase with it to fully utilize all that the AEM has to offer. We have installed many AEM's on many different cars and once fully installed and tuned and finished, the price tag is RARELY under 2000 for only parts. That does not include the labor if you pay someone to install it. I of course don't know exactly what the 350 will take to install, but you pretty much run into the same cost and all the sensors and harnesses work with every car and EMS.

And gq yes it will accomodate for it. It learns the tuning pattern that is on the car and can compensate if you want to. The most safe thing to do would of course be to tune it up to that level and then you can run whatever boost you want.

 

An AEM ECU is a totally different ball game than the MAP-ECU. The standalone is a great idea if you’re planning to tinker with/ race the car every time you drive it. My opinion of the AEM EMS is biased. The fact is I had one of the first serial numbers of the MKIV Supra EMS' on my personal car and it sucked being a genie pig. The 350Z AEM EMS will no doubt be a great unit, but when you've seen ignition timing move around on a timing light with a Zeroed out timing map you might build some what of a bad opinion on the EMS. On another note most of the bugs have been removed making it a great unit at a great price which by the way is now moving upwards of $1900 for the supra and $2600 is the new retail price for the new WRX EMS with AEM wideband included. The harnesses and sensors are not expensive with the exception of the wideband 02 sensor. The AEM EMS for the 350Z might not need any sensors we just don't know yet

 

to the Emanage verse the MAP-ECU we have two different ways to do the same thing control fuel. The Emanage is a great unit, I love it, can't say enough good things about it. Simple to use, controls timing, controls fuel, larger injectors and will accept a larger mass air meter. It is also relatively inexpensive over all. The bad thing about the emanage is that it tunes off the factory maps, you adjust off the factory map by percents which makes it easy to use, and also less accurate.

The MAP ECU does not use a percentage of the factory map it is an actual raw number for each point on the chart. This is nice when you move from a N/A car to a forced induction car. There is no timing control on the present MAP-ECU. Another Advantage the MAPECU has is that it is only 7 wires to hook up not 50 like the emanege w/ optional harnesses. Defiantly a plus in my book. The MAP-ECU will remove the MASS air meter and the restriction that goes a long with it. There are different schools of thought on whether MAS is better or MAP I wont go into those because it really is a personal preference.

As far as the price goes, well if anyone is familiar with the HKS VPC it was over $1000 which has similar functions as the MAP-ECU. The VPC never came with a fuel computer so you would have to purchase something else to control the fuel safc, gcc, or safr. Another $300-$500 to that.

I wanted to post the MAP-ECU as another option to controlling the fuel function on the ECU. It is a nice middle ground from the emanage and a full standalone when designing a fuel map for the car.