Tag Archives: Tuning

AndrewC review on his XRT Tuned 2011 Subaru Legacy GT 2.5 6MT

AndrewC – 2011 USDM Subaru Legacy 2.5 GT 6MT

Atmospheric Pressure: 1017.3 hPa | IAT: 24C >> 22C

http://legacygt.com/forums/showpost.php?p=5641810&postcount=1
I was referred to XRT by a fellow member (golferdude1087) for a tune for my 5th gen LGT. I contacted Ed and he responded immediately with answers to my questions, helped me get setup with the necessary software, and sent the initial tune. Out of the box, it was a massive awakening for the car. Its the first time this car put that big of a smile on my face and even impressed my friend that drives a tuned 3 series. After a few days of back and forth with logs and tips, we are now on version 3 and it runs great. It pulls hard and smooth throughout the entire range and still gets decent mileage with “spirited” driving. The logger “dyno” numbers say about 275hp/340tq (wheel) compared to the stock 265hp/258tq (crank), a significant increase even if the software isn’t accurate. His tips on things to look for and areas to improve give me confidence that the tune will be safe too. I would definitely recommend an XRT tune to anyone looking for reliable power.

Atmospheric Pressure: 1013.3 hPa | IAT: 26C

From: AndrewC
Sent: Sunday, 11 June 2017 12:25 PM
To: EdwardM
Subject: Low end torque

Low end torque is much improved, to the point that small maneuvers like passing or cornering can be done without getting into boost. Accelerating from low rpm’s is also better, letting you stay in gear when you’d normally have to downshift.

Subaru Torque Management Patch (XTMP)

Subaru Tuning that affects the Torque Management Operations & Performance of the Engine by Xtreme Racing Tuning (XRT)

XRT continue to MASTER the Operations and Performance of the transmission (5MT, 6MT, 4EAT, 5EAT, CVT) delivery of TORQUE & POWER to the ground in any models utilising the 32bit ECU (Legacy, Impreza WRX & STI, XV, Crosstek, etc). This is seen through tuning, customer feedback and REAL results based and posted all over the internet, including here on XRT.

Addition reviews are here for Auto Transmissions:
Torque Management are already patched in those tuning!

Generally, the following are expected when tuned (The Transmission Computer is not tuned in the Automatic cars):

  • Quicker shifting
  • Firmer shifting
  • Appropriate gear selection for less labouring or load on the engine
  • Less ping/knocking due to the transmission wanting to be in high gear all the time.
  • Less pedal moving to make the transmission shifting
  • Better fuel mileage
  • Easy over-taking and maneuvering due to quicker acceleration due to the above points

Please remember that even Manual Transmission models are affected and are able to accelerate and spin tires easily and freely. Please disable Traction Control.

http://xtremeracingtuning.com/forum/viewtopic.php?f=122&t=743

Oil Recommendations: Motul Oils

Engine Oil


Gear Oil


GEAR 300 75W-90

TYPE OF USE
Specially designed for racing vehicle gearboxes : speed way, rallye, raid…

All mechanical transmission, synchronised or not synchronised gearboxes, gearbox/differential, transfer gearboxes and hypoïd differentials without limited slip system operating under shocks, heavy loads and low revolution speed or moderate loads and high revolution speed.

PERFORMANCES
STANDARDS API GL4 and GL5 / MIL-L-2105D

100% synthetic extreme pressure lubricant for an efficient anti wear protection, a better resistance at high temperature and a longer life time.

0% shear loss : Unshearable oil film in extreme conditions

MOTYLGEAR 75W-90


TYPE OF USE
Specially recommended for gearboxes hard to shift and/or noisy gearboxes.

All mechanical transmission, synchronised or not synchronised gearboxes, gearbox/differential, transfer
gearbox and hypoïd differentials without limited slip system operating under shocks, heavy loads and
low revolution speed or moderate loads and high revolution speed.

PERFORMANCES
STANDARDS API GL4 and GL5 / MIL-L-2105D

Extreme pressure lubricant for an efficient anti wear protection reinforced with synthetic base stocks for
a better resistance at high temperature and longer life time.

Transmission


MULTI ATF

MULTI CVTF

 

EMS/Powertrain review thoughts

For 10yrs I been reviewing the best viable Engine Management Systems (EMS) for customers and their projects.

Customers tend to invest heavily in modifications, spending in excess of $3000USD in mods, while thinking less about EMS’ and their capabilities. Once such reason is due to the complexities of such key devices and how important there are.

Below are my thoughts on EMS determination:

  1. Ability to at an advance level, turn the knobs to effect critical engine operations
  2. Ability to accurately and precisely determine the next engine operation. The need for FPGA’s and possibly RISC processors for that, including precise coding for efficient software processing. The software that drives it all should be optimised for all of the hardware and the hardware optimised to work together efficiently and effectively; in a harmonious way.
    1. https://en.wikipedia.org/wiki/Field-programmable_gate_array
    2. https://www.design-reuse.com/news/6629/actel-fpgas-development-multiple-race-car-engine-control-units.html
    3. https://www.xilinx.com/video/hardware/what-is-the-difference-between-an-fpga-and-an-asic.html
  3. Strategies and analysis on Engine operations and management
  4. Support into known and hidden features to support the operations and management of engines and Powertrains. That is the ability to get customised firmware of software updates to you in the field. That implies the ability of the manufacture to execute change.
  5. Selective Scoping and high logging rate to capture events and operations

All of the above is achieve when manufactures are part of Engine Development like Life Racing/Syvecs, Motec, Pectel, Bosch and a few other top Powertrain manufactures.