Guys,

What are your thoughts about using the following MAP-ECU?You can go to www.mapecu.com for more info. I bought one of these BNIB about a year ago for my Supra and haven't gotten around to installing it. I even splurged for the optional wiring harness and Bosch O2 sensor for A/F datalogging capabilties. The Supra guys love this thing and claim 25-30 HP gain at the wheels.

Now I'm thinking about installing it on the Max for horsepower, A/F datalogging capabilities, and getting rid of the MAF, which is going to be necessary if I go with the Vortech aftercooler. (not necessary with the Jackson Racing aftercooler-the one I'm going to go with if Josh and I can get his installed successfully this weekend--We'll keep you guys updated )

1. Can we use it to tune and get more horspower out of our max's?

2. Can I use it given my level of mods? SC, 3.25 pulley (and soon to come aftercooler) Or would this really only be beneficial once I get larger injectors, AFPR, drop in the Walbro fuel pump etc etc like the rest of you guys?

Comments/opinions would be much appreciated. Thanks.



The MAP-ECU (Manifold Absolute Pressure Electronic Control Unit) is designed to provide two main functions:

1. Removal of the stock air flow meter (hotwire, flap, and Karman-Vortex style) and conversion to speed-density (MAP) based tuning.

2. Complete control over your OEM ECM fuel table by tuning the air flow signal traveling to the ECM, allowing you to install larger injectors, forced induction, or other major engine modifications.

The MAP-ECU will work on any late model fuel injected vehicle using most major types of air metering systems (hotwire, flap, and Karman-Vortex) found in use today. It can be installed on any 1-16 cylinder engine in less than an hour, and completely replaces the restrictive factory air meter. The benefits include:

More horsepower and torque by removal of the restrictive factory air meter.

The ability to use the stock ECM to control larger fuel injectors and/or performance upgrades

Retains the daily driveability of the stock ECM usually sacrificed with a full aftermarket engine management upgrade.

Built-in manifold pressure sensor capable of reading up to 30 PSI boost pressure.

Real-time tuning using Windows® based MAP-CAL software supplied with the unit.

High-resolution 374 point table (0-8000 RPM and -10 to 30 PSI) allows fine tuning for performance and driveability.

Built-in display and logging of key engine parameters such as RPM, Throttle Position, Boost Pressure, and Airflow.

On-board support for display and logging of popular aftermarket wideband Lambda sensors/controllers.

On-board programmable NOS window activation switch can also be used to turn on other accessories at set RPM/PSI points.

Simple piggy-back installation only requires 5 wires to operate with no major re-wiring of OEM components.

If you are unfamiliar with the MAP-ECU, alot of info can be found here. www.mapecu.com

 

my main concern would be starting from scratch. that is why more people on the board have not tuned witht the MAP option on the emanage.

btw-if you and josh need help with the water pumps, etc. drop me a line. mine is mounted to where the battery tray connects to.

 

The Ultimate Emanage can do the same plus more for less money.

 

You can log the MAF vs. RPM using the UE and then build/interpolate a MAF output map. Then you'll use the Intake temp and Water temp adjustment maps to fine tune for ambient changes.

 

SMT-7 does this automatically and alot of other tricks...

Hook up your MAF to the SMT-7 and then hook up a suitable MAP sensor to the second analog input. Tell the SMT-7 to learn the curve and viola it creates a MAP/MAF curve for you.

With the SMT-6 its possible as well, several tuners have done it; mostly for turbo setups. Main problem with the SMT-6 is that you have to record the MAF voltages and match the MAP output by modifying the A/F table of the SMT-6 until the curve is close enough to the stock MAF. This is tedious and timing consuming to say the least...

Currently Perfect Power is working on a SMT-7 firmware upgrade for low teeth crank signals like ours have, I will know more in a few weeks.

 

Hi,

I'm planning to get a new airflow meter for my 2K01 maxima and I would like to give it a try (installing it). Anyone with experience doing this? Is it really hard? Can anyone explain how it can be done or point to any guide anywhere on the net? I would really appreciate it.

Also, the 2K01 maxima MAF meter is $90 and 2K02 one is $450. Anyone know why such a huge difference in price. I just want to make sure the one I'm getting for $90 is a genuine part.

Thank you
Maximaprob.