richardjh

I'm making some EcuFlash-based ROM patches available. These have been developed and tested on my RA, and will now be available for some X ROMs... hence the "RAX" moniker.



RAX Patch contains:

1. IAT Adjusted BWGDC
2. SST Upshift Boost EC Management (SST models only)
3. Atmospheric Boost Baro Compensation
4. RAX Fast Logging



Details follow:



IAT Adjusted BWGDC

This patch makes it possible to adjust your Base Wastegate Duty Cycle in line with Intake Air Temperature.

A new table becomes available in the EcuFlash Turbo category:




The adjustment factor is applied directly to the relevant Reactive Solenoid Base WGDC Map lookup value, if that value is between 0% and 100%.

A Base Wastegate value of 0% will always remain 0%, irrespective of IAT.

A Base Wastegate value of 100% will always remain 100%.




SST Upshift Boost EC Management (SST Models Only)

This patch may be useful for reducing boost levels during SST upshifts at wide-open throttle. It will zero out any positive error-correction factor when RPM is dropping.

This patch will do something meaningful if:

• Reactive Solenoid Max Total Upward WGDC Correction vs. TPS table is set up to allow upward/positive error correction.

• Base WGDC and Boost Target tables are set up in such a way as to require the use of upward error correction in order to meet boost targets.

With boost error correction configured to suit, this patch will result in a lower wastegate duty cycle being used when a wide-open throttle SST upshift occurs, eg.





While this patch is no "magic bullet" for high boost during SST upshifts, it can help reduce the severity of the problem. That is, if your SST behaves like this in the first place - some do, some don't.



Atmospheric Boost Baro Compensation

This patch makes it possible to eliminate the fixed Atmospheric Boost value when using Direct (psi based) Boost Control. The ECU will use BARO SENSOR reading in its calculations for boost targets.

Traditionally, psi-based boost control would offset the 3D boost target map values by a hardcoded "atmospheric pressure" constant, eg. "14.5". Boost targets would always operate in terms of absolute pressure.

This patch allows the ECU to use boost targets at relative (ie. gauge) pressure.

Two scaling modes are available. One caters for Direct Boost Control using the factory 3-Bar MAP sensor. The other supports the aftermarket Omni 4-Bar MAP sensor. Note: For Direct Boost with Omni 4-Bar, different patches are required in other areas of the ROM - RAX2 Patch does not deliver complete Omni 4-Bar support on its own.

The patch will only use the BARO SENSOR if the Atmospheric Boost fixed value is set to 0. A non-zero setting will bypass the patch.



RAX Fast Logging

This patch works with EvoScan v2.9.0023 or later to provide fast logging of 30+ items.

This one is big, and has an entire thread dedicated to it! See here for details!




RAX Patch Download and Documentation

RAX Patch comes in a set of EcuFlash XML definition files, for specific ROMs. The patch items should be straightforward to apply.

An important part of this release is a document containing detailed instructions on installing, testing and using the patches. This document (pdf) is included in the patch download.

PLEASE read the documentation in its entirety before applying, flashing, logging, driving, anything. There are detailed testing notes in that document - with useful logging addresses, and what values you should see in them. These notes have been included for your own safety (and peace of mind).

This document also contains Liability and Safety notices. Joy! Following in the best modern tradition of whacking everyone over the head with "use at your own risk" signposts, they are reproduced below, in tasteful red:

LIABILITY NOTICE

Incorrectly patched instructions can be extremely dangerous to your engine management, and can lead to severe engine damage. You assume ALL responsibility for the integrity of your ECU and engine management, vehicle safety, etc. If you are not confident in the procedures/data involved in the RAX Patch, do not make any change to your vehicle ECU's ROM image.

SAFETY NOTICE

It is important to testing any engine management change in a safe and thorough manner. Tests recommended in the related document are a guideline only. You assume ALL responsibility for the testing approach taken when using ECU ROM patches.


After all that, you're probably cowering under your desk in fear. On the off chance you're still with me, here is the download link, finally:


Downloads

RAX Patch EVO X SST v1r10: ROM 52690019-52690022
RAX Patch EVO X SST v1r10: ROM 53050006-53050007
RAX Patch EVO X SST v1r10: ROM 53050009
RAX Patch EVO X SST v1r10: ROM 54070007
RAX Patch EVO X SST v1r10: ROM 55580005-55580006
RAX Patch EVO X SST v1r10: ROM 56900007
RAX Patch EVO X SST v1r10: ROM 56900009-56900010
RAX Patch EVO X SST v1r10: ROM 56920006
RAX Patch EVO X SST v1r10: ROM 57140001
RAX Patch EVO X SST v2r05: ROM 58020005
RAX Patch EVO X SST v2r05: ROM 59590004

RAX Patch EVO X 5MT v2r05: ROM 52360018
RAX Patch EVO X 5MT v2r05: ROM 52680015-52680022
RAX Patch EVO X 5MT v2r05: ROM 52680024
RAX Patch EVO X 5MT v2r05: ROM 53040010
RAX Patch EVO X 5MT v2r05: ROM 54060007-54060008
RAX Patch EVO X 5MT v2r05: ROM 55570005-55570006
RAX Patch EVO X 5MT v2r05: ROM 56180001-56180002
RAX Patch EVO X 5MT v2r05: ROM 56870008
RAX Patch EVO X 5MT v2r05: ROM 56890007
RAX Patch EVO X 5MT v2r05: ROM 56890009-56890010
RAX Patch EVO X 5MT v2r05: ROM 56890013
RAX Patch EVO X 5MT v2r05: ROM 56910007
RAX Patch EVO X 5MT v2r05: ROM 58010005
RAX Patch EVO X 5MT v2r05: ROM 59580004

RAX Patch Ralliart SST v1r10: ROM 53600010
RAX Patch Ralliart SST v1r10: ROM 53610010
RAX Patch Ralliart SST v1r10: ROM 53610013
RAX Patch Ralliart SST v1r10: ROM 55590006
RAX Patch Ralliart SST v1r10: ROM 56940007
RAX Patch Ralliart SST v1r10: ROM 56950006
RAX Patch Ralliart SST v2r05: ROM 58030005
RAX Patch Ralliart SST v2r05: ROM 59570004


RAX Patch is built into razorlab's Ralliart Lancer Base Maps, v2.7 on.



RAX Patch Compatibility

RAX Patch v1 & v2 should coexist peacefully with TephraXMODv1.

RAX Patch v1 & v2 should coexist peacefully with the current Direct PSI-Based Boost Control patches (including Omni 4-Bar mode), as referenced in XMLs from www.goldenevo.com.



Special thanks must go to the brave souls who have been "first-run" testers for these patches for each supported ROM!




If you would like to email me about RAX Patch stuff (as opposed to just posting here), you can use:

raxpatch gmail com

If you would like to contribute to the RAX Patch cause, this works for PayPal too!



Cheers,

Rich

richardjh

Reserved 1.

richardjh

Reserved 2.

fostytou

iTrader: (15)

Nice! I'd love temp adjusted BWGDC on the X 5 speed!

Beeble

Nice work Rich.
I had a look at all this and i like it. Pretty sure I'll be using it in my own car when it's finally back on the road

richardjh

I'll shortly start work on another round of patches.

I'll be adding Atmospheric Boost Baro Compensation. This may be useful for people running Direct PSI-Based Boost Control, and who want to run the same "gauge" boost pressure at different altitudes. It replaces the fixed "Atmospheric Boost" value with a dynamic reading from the baro sensor.

And this time I'll do the 5SP ROMs too. 5SP will get the above baro boost tweak, and the IAT Adjusted BWGDC patch.


This time, I'll release individual ROM patches instead of a single zip of "everything". Easier on my poor brain.

If anyone's keen to get in and try an early release, post up your ROM and I'll get to it first.

Rich

UT_EvoX

^^ sweet!

Atmospheric Boost Baro Compensation and IAT Adjusted BWGDC for the 5 M/T would be awesome and very much appreciated!

chetrickerman

iTrader: (7)

Atmospheric Boost Baro Compensation and IAT Adjusted BWGDC for 5268 series.

specifically 52680015

Golden

iTrader: (1)

Chet, you should be running something newer than 0015. Mitsu has made a LOT of changes since that rom.

jyamona

iTrader: (8)

this would be great!

richardjh

I've got a new version of this patch for 5268 series ROM (5MT). Before inflicting it on someone's actual vehicle, it would be great if an "assembler-aware" person could peer-review the changes it makes.

It's not a complicated set of changes. A review would involve using the prototype patch, comparing "before" and "after" code/data, and sanity-checking it.

Any takers?

Rich

PS. Once this first ROM is given the green light, I can rattle off other 5MT ones without fuss.

chetrickerman

iTrader: (7)

what is the patch for?

I will test it out. let me know

chetrickerman

iTrader: (7)

Im running the 52680122 ROM.

0015 is just one of the XML's I use. and all the other 5268 XML's root back to the 0015 XML

richardjh

It's the one we discussed - IAT Adjusted BWGDC and Atmospheric Boost Baro Comp.

I wanted to see if I could get a source-level double-check before inflicting it on your ECU (lol), but that expectation was probably a little unrealistic!

I'll pm you with it, along with the logging/testing requirements.

Cheers,

Rich

sstevojr

iTrader: (7)

Hey Rich,
What cool local are we broadcasting from today :P