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Rtek7 S5 TII Stage 2



Rtek7 Home >> S5 TII Stage 2ORDER AT RIGHT

Feature Details:

Below are expanded descriptions of features that are included with the S5 TII Stage 2 Rtek7 ECU Upgrade.

Fuel Correction Map:

The Stage 2 Rtek7 gives the user the ability to modify both fuel and timing without tricking the ECU in any way like using external hardware does. The fuel and timing changes are done within the factory ECU maintaining the drivability of the factory ECU while adding the flexibility of a stand-alone without having to rewire the whole car.
Fuel adjustments can be made using the fuel correction map. The map is arranged as an RPM vs. Boost table with each cell being a correction factor the user can specify. Every engine cycle, the ECU calculates the fuel required then, based on the current boost and RPM, looks up the user-set correction factor in the fuel correction map. This correction is applied to the result of the fuel calculation. The S5T2 Fuel Correction Map is 18x14 with an adjustment range of +/- 37%

Timing Maps:

The Stage 2 Rtek7 gives the user the ability to modify both fuel and timing without tricking the ECU in any way like using external hardware does. The fuel and timing changes are done within the factory ECU maintaining the drivability of the factory ECU while adding the flexibility of a stand-alone without having to rewire the whole car.
Timing adjustments are made to the actual timing maps. In the PocketLOGGER Software, there are two timing maps, one for leading and one for trailing. Each map is arranged as a Load versus RPM table with each cell being the actual timing value in degrees. Every engine cycle, the ECU uses the current load and RPM to lookup the timing value in the map. The user can directly change these values.

Injector Size Presets:

The Stage 2 Rtek ECU Upgrade allows the user to select preset injector sizes for both primary and secondary injectors. This makes the ECU aware of the larger injectors so it compensates for them without the user having to lean out the mixture manually. Injectors larger than the presets can be run without a problem, but the ECU will not completely compensate for the higher flowing injectors requiring the user to do so manually using the fuel correction table. The S5T2 presets are (Pri/Sec, cc) 550/550, 550/720, and 720/720.

MOP Removal Option:

On the S5 series, the oil injection pump (MOP) is electronic and controlled by the ECU. If the ECU detects a failure of the MOP it will enter limp mode. This makes removal of the pump impossible with the stock ECU. The MOP Removal feature defeats the operation of the pump and detection of pump failures (codes 20, 26, 27 and 37), thus allowing complete removal of the pump. Premix or the more reliable S4 mechanical pump can then be used. In the Stage 2 ECUs, this option can be turned on and off using the control software.

CAUTION: This mod should not be used if you intend to continue operation of the electronic MOP.

Adjustable secondary staging rpm:

Normally the secondary injectors start adding fuel at 3800 RPM. The problem is that the secondary injectors will not come on below this rpm regardless of the boost being run. This can lead to cars running lean below 3800rpm even if they have larger injectors, fuel pump etc. The Rtek7 Stage 2 ECU Upgrade allows the user to adjust the secondary staging RPM to any RPM between 2400 and 3800 to best suit your setup.

Increase rev limit to 8700:

The user can select stock rev limit or increase the limit to 8700 RPM for racing applications. The rev limit is not variable. The only options are stock or 8700 RPM.

MAP Based Timing mode:

The user can turn this feature on to convert the timing tables to PSI vs RPM which provides better control over timing above 10 PSI as compared to the stock Load vs RPM. This mode is NOT for beginners. It requires complete manual remapping of the timing tables as the stock tables are no longer valid. The ECU is shipped with MAP Based Timimg mode turned off, so the ECU uses the stock timing maps (Load vs RPM) which can be edited by the user.

External General Purpose Loggable Analog Input:

Utilizing an unused input on the stock ECU, we have converted it to a general purpose analog input. This works excellent in conjunction with any sensor with a 0-5v output, such as a Wideband O2 Sensor. The input is fully loggable which makes it a valuable tool for tuning.

AWS Output as RPM Controlled Switch:

The AWS output has been converted to use as a general use RPM controlled switch. The active low output can be configured in the software to activate at any RPM. N374 ECUs will not have this feature. It is only available on N370 ECUs.

Diagnostic Check Codes and I/O Viewer:

With the Rtek7 Stage 2 ECU, in conjunction with the PocketLOGGER software, you can view current error codes in plain english as well as current status of all the digital inputs and outputs of the ECU, in real-time.

Datalogging Port:

One of the major features of the Rtek7 Stage 2 ECU Upgrade is the addition of a serial data port. This port is used in conjunction with the Datalogging/Tuning software to make adjustments to the ECU as well as retrieve data from just about any sensor on the car at speed of 120 samples per second or more.

AWS:

When you first start your RX7, the ECU will rev the engine to approximately 3000 RPM's - this is the Accelerated Warmup System (AWS) in action. The purpose of the AWS is to warm up the precat. Of course, one of the worst things you can do to a cold engine is high revs. This mod removes the AWS code from the ECU allowing your car to idle normally when cold.

Palm PDA Based Programming and Datalogging Software:

To make changes to the Rtek7 Stage 2 ECU as well as capture sensor data, a Palm OS PDA is connected to the datalogging port on the ECU. Based off the mature and stable PocketLOGGER datalogging engine used in our other products, the Rtek7 PocketLOGGER software provides a easy and convenient way to make changes to the Rtek7 Stage 2 ECU without having to carry around an expensive laptop. Check out the screenshots on the software page.

 
Order: or Find a Dealer

Rtek7 Stage 2
ECU Upgrade S5T2
$449

Update from Stage 1 to Stage 2
$349

Bluetooth Serial
Adapter for Rtek7
$69.95

All Stage 2 Upgrades include PocketLOGGER for RX7 control software

I have read and understand the requirements of the
Stage 2 Rtek7

Customer review:
Rtek7 ECU Upgrade:
In the automotive aftermarket, the adage "you get what you pay for" comes up often. However, with the release of the Rtek7 ... more
-Jon Bloom, NY
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