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1,307 Posts
I hear they will have a jumper for the GTR.
New AEM ECU
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1,307 Posts
fully tune the engine not trans i believe will know later on down the line.
It work like a motec or the better ecu out there.
It work like a motec or the better ecu out there.
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1,248 Posts
I have had both versions of the AEM in my Supra. Version 2 was better, but they really had problems with the auto trans settings. It is very difficult to get the settings just right. They never did get them right. I replaced it with a ProEFI, which has been much better.
With the complicated trans the GTR has, I hope they don't have the box controlling it. I'd be wary of it, unless it lets the stock computer handle all the shifting, etc.
With the complicated trans the GTR has, I hope they don't have the box controlling it. I'd be wary of it, unless it lets the stock computer handle all the shifting, etc.
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1,307 Posts
my first choice for my gtr is the proefi too. but will love to see what aem ecu can offer the gtr.
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1,248 Posts
Can you tell me how the Cobb differs from a new standalone? I'm assuming it piggybacks off the stock ECU?
I think the issue with any standalone is the driveability of the car. There is no way a standalone will be as good as the stock computer for many things. But, it allows you to tune for things the stock ECU does not allow. That's the tradeoff.
I think the issue with any standalone is the driveability of the car. There is no way a standalone will be as good as the stock computer for many things. But, it allows you to tune for things the stock ECU does not allow. That's the tradeoff.
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6,049 Posts
i thought cobb was the tuning standard...?
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1,773 Posts
These type standalones are great for the full time track, and dedicated race car, for everything else the Cobb can't be beat.
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11,288 Posts
Most of the stand alones require you to have a cobb anyways for trans operations ... At that point it depends what features the stand alone product offers and the price. Sofar pro EFI has proven very effective... How will AEM manage to fit in? Unless its really cheap and or offers trans control without cobb I don't see it being a viable product to make. It will be good to hear more about this product to get a better understanding of what is going to bring to market before assuming tho.
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2,070 Posts
Its similar to the ProEFI. They are targeting MKiV Supra as the number 1 plug and play application, with R35 coming a short time later. Its at least 6-9 months away for us.
It has the Ethanol Sensor input, Traction control, closed loop O2 sensors ect.. I spoke with some of the engineers at PRI, its a nice box.
Edit. Its not really cheap.
It has the Ethanol Sensor input, Traction control, closed loop O2 sensors ect.. I spoke with some of the engineers at PRI, its a nice box.
Edit. Its not really cheap.
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3,581 Posts
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11,288 Posts
Just heard they released the Supra version of the AEM infinity-10 ems. i have not found anything on the R35 development at all. will it be an infinity-10 or 12? costs with sensors will probably be 5000-7000 depending on what sensors you want plus the advanced tuning package. if its an infinity-12 it may be more. with those larger builds using 12 injectors, im thinking a 12 is going to be needed?
AEM has entered into a long term mutually exclusive contract with EngineLab (EL) to co-develop advanced generation ECU's.
EL is a technology company whose patented developments provide the most sophisticated embedded state management system possible by providing a complex method of data management with precision real-time control. With their technology, complete engine behavior models can be constructed and executed dynamically.
The Infinity Tuner PC Software shown in the screenshots below is a new ground-up development authored by both AEM and EL programmers which has never been released, so you couldn't have used this software before. However, in some ways it is very similar to an earlier PC software package that EL created for use during their development program.
The Infinity-10 is the first product resulting from this collaboration to create the most advanced ECU's ever imagined.
http://enginelab.net/index.php
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FOR IMMEDIATE RELEASE
AEM Introduces the Infinity EMS
Cutting Edge Engine Management Software Architecture - Running on Lightning Fast, State-of-the-Art Hardware
July 25th, 2012, Hawthorne, CA-AEM has released the Infinity Programmable Engine Management System for race vehicles.
TECHNOLOGY
The Infinity's primary automotive MCU is a 200 MHz, 32 bit processor with a math co-processor. It is able to process 400 MIPS. It includes up to 12 peak and hold injector drivers and up to 12 ignition outputs. Infinity's USB technology downloads up to 480 Mb/second. The enclosure and connectors are sealed and suitable for engine bay mounting. It features a fully-sealed IP67 rated connection system.
AVAILABLE INFINITY ENGINE CONTROL SYSTEMS
The first release of AEM's next-generation programmable engine management system includes the Infinity-6, Infinity-8, Infinity-10 and Infinity-12. Each system will have peak and hold injector drivers and ignition outputs equivalent to its name.
CLICK HERE for Infinity Specifications Chart
UNIVERSAL AND PLUG & PLAY HARNESSES
Plug & Play applications include a vehicle specific jumper harness(sold separately) and an application specific base map.
CLICK HERE for plug & play applications that include a vehicle specific adapter harness
InfinityTuner USER INTERFACE SOFTWARE
InfinityTuner features custom layouts, an ECU Setup Wizard, and data logging playback mode where all controls are synched to the logged data. This allows you to edit calibration data exactly where you need to and minimize your tuning time. AEMdata data logging analysis software is also included.
AIRFLOW MODEL BASED CALCULATIONS
Infinity system base models are airflow based and feature various modes for calculating air flow. This eliminates many of the lookup and trim tables (Correction Tables) which are necessary in previous generation ECUs.
FUEL CONTROL & IGNITION TIMING
The Infinity EMS calculates injector pulsewidth in units of 1/10th of a microsecond (0.0000001 second) and has NO practical crank tooth resolution limit. The Infinity's back-end timing code is tested to 100,000 RPM.
DATA LOGGING
Log 10 channels at up to 1KHz, 20 channels at up to 500Hz or 100 channels at up to 200Hz standard. Log 100 channels at up to 1 KHz using a high performance USB flash drive (not included). An included 4GB USB memory stick can be replaced with one up to 64GB. Users can also log direct to the PC at up to 500Hz.
DUAL INTERNAL WIDEBAND CONTROLLER
A built-in 2-channel Bosch wideband controller with automatic closed-loop heater control optimizes sensor performance and reliability. Full diagnostics software ensures reliable operation.
FLEX FUEL COMPENSATION
The Infinity's core control model is designed for flex fuel compatibility. It makes automatic adjustments for ethanol content and applies them to fuel flow, ignition timing and boost target (ethanol content sensor is sold separately).
MULTI-FUEL CAPABLE
The infinity has the ability to run two separate fuel types simultaneously through staged fuel injection.
DUAL KNOCK SENSING
Dual knock signal conditioning circuits allow for precise measurements of knock levels.
INTERNAL SIMULATOR
A powerful input simulator feature allows the user to simulate operating conditions. This allows users to validate tuning changes before running the engine.
REAL-TIME ADVANCED DIAGNOSTICS
The Infinity's diagnostics software constantly monitors signal and current quality to alert the user of an issue before it creates the potential for engine damage.
INTEGRATED ENGINE PROTECTION STRATEGIES
Available strategies are based on boost fuel cut, fuel pressure (injector flow compensated for variations in pressure, sensor required), oil pressure, RPM (rev limiter), coolant temperature, knock control with feedback and lean protection.
NETWORK INTERFACES
Infinity is AEMnet enabled and will communicate with another AEMnet-equipped device and output to 3rd party dash/logger devices (not all 3rd party dash/logger devices may be supported).
INFINITY EMS ADVANCED TUNING PACKAGE
Certain Advanced Tuning functions, hardware outputs and sensor inputs (see "Advanced Tuning Package" below) for the Infinity Programmable EMS are sold separately. Please contact an AEM Authorized Infinity Retailer or call AEM Performance Electronics at (310) 484-2322 for more info.
INFINITY EMS TECHNICAL SPECS:
• Up to 12 peak and hold injector drivers
• Up to 12 (0-5V) ignition outputs
• 3 analog temp inputs (Additional 3 with Advanced Tuning Package)
• 11 analog voltage inputs (Additional 6 with Advanced Tuning Package)
• 7 digital inputs (Additional 1 with Advanced Tuning Package)
• 4 VR/Mag differential pair inputs (Additional 2 with Advanced Tuning Package)
• 12 configurable outputs (Additional 1 with Advanced Tuning Package)
• Variable cam control (up to 4 cams, application dependent)
• Dual internal wideband controllers
• 2 H-Bridge drivers for drive-by wire (Application dependent. Requires Advanced Tuning Package)
• 32 Bit, 200MHz 400 MIPS primary microprocessor
• 20 MHz auxiliary microprocessor
• 6" L x 6" W x 2" H (1.125" H w/o connectors)
• 24 Ounces/680.4 Grams
• 129 pin, fully-sealed IP67 spec ECU enclosure and connectors
INFINITY EMS FEATURES:
• Compatible with most factory and performance aftermarket sensors
• Includes start up configurations (supported applications only)
• ECU set up wizard
• User interface features 3D graphics
• Internal simulator
• USB 2.0 High-Speed communications
• Tune using USB communication port (optional weatherproof extension cable sold separately)
• High-speed USB data logging to mass storage device (4GB included, tested to 64GB)
• Internal data logging playback mode on every channel, synchronized with all controls
• AEMdata data analysis software included
• 2-Channel CAN included
• Runs on Windows-compatible software
INFINITY EMS CAPABILITIES:
• Airflow model based calculations
• Fuel control resolution to 1/10th of a microsecond (.0000001 sec)
• Multi-fuel capable
• Flex fuel compensated - fuel, ignition and boost with blend
• Open-loop fuel pressure compensation
• Ignition table, 20x20
• VE airflow table, map vs. engine speed, 20x20
• Configurable coil dwell (RPM, voltage and load based)
• Individual cylinder ignition trim (RPM based)
• Individual cylinder fuel trim (RPM based)
• 3D ignition trim maps (coolant and air temp)
• VE-based engine startup
• Real-time sensor diagnostics
• Integrated engine protection strategies
• Dual internal wideband controllers
• Target Lambda table, 10x10
• User adjustable charge temperature blend (CLT/AIT, engine speed dependent)
• O2 lean-out protection
• Electronic boost control (time based or target based)
• Idle control (stepper and pulsewidth)
• Programmable traction control, 2-wheel speed or engine acceleration (4-wheel speed with Advanced Tuning Option)
• 2-channel adaptive knock control
• 2-step programmable launch control (3-step with Advanced Tuning Option)
• No-lift shifting (Requires Advanced Tuning Option)
• User configurable soft-cut rev limiters
• User configurable anti-lag
• Single stage wet or dry nitrous control coming soon (3-stage with Advanced Tuning Option, coming soon)
ADVANCED TUNING PACKAGE:
Advanced Tuning Functions:
• No-lift shift
• 4-wheel speed traction control
• 3-step launch control
• Drive by wire (application dependent, coming soon)
• 3-stage nitrous control (coming soon)
Advanced Tuning Hardware Outputs:
• 1 high side driver (coming soon)
• 2 H-bridge channels
Advanced Tuning Inputs:
• 2 analog voltage inputs (4 additional coming soon)
• 2 VR/Mag differential pair inputs
• 1 digital/frequency input (coming soon)
• 3 analog temp inputs (coming soon)
MORE INFO
Please visit www.aemelectronics.com or call (310) 484-2322 for more information or to find an Authorized AEM Electronics dealer or Factory-Trained tuner.
AEM's Infinity Programmable Engine Management System is legal in California only for racing vehicles which may never be used upon a public road or highway.
AEM's Infinity Programmable Engine Management System is legal solely for vehicles used in competition which may never be used upon a public road or highway.
WARNING:
This installation is not for the tuning novice! Use this system with EXTREME caution! The AEM EMS System allows for total flexibility in engine tuning. Misuse or improper tuning of this product can destroy your engine! If you are not well versed in engine dynamics and the tuning of engine management systems DO NOT attempt the installation. Refer the installation to an AEM Authorized Infinity Retailer or call 800-423-0046 for technical assistance. You must also visit the AEM Tech Forum at http://forum.aempower.com/forum/ to ensure that you are using the most current information and software.
NOTE:
All supplied AEM calibrations, Wizards and other tuning information are offered as potential starting points only. IT IS THE RESPONSIBILITY OF THE ENGINE TUNER TO ULTIMATELY CONFIRM IF THE CALIBRATION IS SAFE FOR ITS INTENDED USE. AEM holds no responsibility for any engine damage that results from the misuse or mistuning of this product!
For technical assistance, please visit our forum or visit our dealer locator for an AEM Authorized Infinity Retailer near you.
ABOUT AEM
Advanced Engine Management's performance electronics are Engineered to Outperform. The company designs, manufactures and assembles engine management systems, wideband air/fuel systems, water/methanol injection systems, performance gauges, boost controllers, ignition components, fuel delivery components and adjustable cam gears at its corporate headquarters in Hawthorne, CA.
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http://www.aemelectronics.com/files/Infinity_Software/Infinity_Specifications_Chart.pdf
http://www.aemelectronics.com/engine-management-systems-9/infinity-stand-alone-programmable-engine-management-system-90/infinity-12-stand-alone-programmable-engine-management-system-93/
software download http://www.aemelectronics.com/catalog-software-downloads-72/
AEM has entered into a long term mutually exclusive contract with EngineLab (EL) to co-develop advanced generation ECU's.
EL is a technology company whose patented developments provide the most sophisticated embedded state management system possible by providing a complex method of data management with precision real-time control. With their technology, complete engine behavior models can be constructed and executed dynamically.
The Infinity Tuner PC Software shown in the screenshots below is a new ground-up development authored by both AEM and EL programmers which has never been released, so you couldn't have used this software before. However, in some ways it is very similar to an earlier PC software package that EL created for use during their development program.
The Infinity-10 is the first product resulting from this collaboration to create the most advanced ECU's ever imagined.
http://enginelab.net/index.php
FOR IMMEDIATE RELEASE
AEM Introduces the Infinity EMS
Cutting Edge Engine Management Software Architecture - Running on Lightning Fast, State-of-the-Art Hardware
July 25th, 2012, Hawthorne, CA-AEM has released the Infinity Programmable Engine Management System for race vehicles.
TECHNOLOGY
The Infinity's primary automotive MCU is a 200 MHz, 32 bit processor with a math co-processor. It is able to process 400 MIPS. It includes up to 12 peak and hold injector drivers and up to 12 ignition outputs. Infinity's USB technology downloads up to 480 Mb/second. The enclosure and connectors are sealed and suitable for engine bay mounting. It features a fully-sealed IP67 rated connection system.
AVAILABLE INFINITY ENGINE CONTROL SYSTEMS
The first release of AEM's next-generation programmable engine management system includes the Infinity-6, Infinity-8, Infinity-10 and Infinity-12. Each system will have peak and hold injector drivers and ignition outputs equivalent to its name.
CLICK HERE for Infinity Specifications Chart
UNIVERSAL AND PLUG & PLAY HARNESSES
Plug & Play applications include a vehicle specific jumper harness(sold separately) and an application specific base map.
CLICK HERE for plug & play applications that include a vehicle specific adapter harness
InfinityTuner USER INTERFACE SOFTWARE
InfinityTuner features custom layouts, an ECU Setup Wizard, and data logging playback mode where all controls are synched to the logged data. This allows you to edit calibration data exactly where you need to and minimize your tuning time. AEMdata data logging analysis software is also included.
AIRFLOW MODEL BASED CALCULATIONS
Infinity system base models are airflow based and feature various modes for calculating air flow. This eliminates many of the lookup and trim tables (Correction Tables) which are necessary in previous generation ECUs.
FUEL CONTROL & IGNITION TIMING
The Infinity EMS calculates injector pulsewidth in units of 1/10th of a microsecond (0.0000001 second) and has NO practical crank tooth resolution limit. The Infinity's back-end timing code is tested to 100,000 RPM.
DATA LOGGING
Log 10 channels at up to 1KHz, 20 channels at up to 500Hz or 100 channels at up to 200Hz standard. Log 100 channels at up to 1 KHz using a high performance USB flash drive (not included). An included 4GB USB memory stick can be replaced with one up to 64GB. Users can also log direct to the PC at up to 500Hz.
DUAL INTERNAL WIDEBAND CONTROLLER
A built-in 2-channel Bosch wideband controller with automatic closed-loop heater control optimizes sensor performance and reliability. Full diagnostics software ensures reliable operation.
FLEX FUEL COMPENSATION
The Infinity's core control model is designed for flex fuel compatibility. It makes automatic adjustments for ethanol content and applies them to fuel flow, ignition timing and boost target (ethanol content sensor is sold separately).
MULTI-FUEL CAPABLE
The infinity has the ability to run two separate fuel types simultaneously through staged fuel injection.
DUAL KNOCK SENSING
Dual knock signal conditioning circuits allow for precise measurements of knock levels.
INTERNAL SIMULATOR
A powerful input simulator feature allows the user to simulate operating conditions. This allows users to validate tuning changes before running the engine.
REAL-TIME ADVANCED DIAGNOSTICS
The Infinity's diagnostics software constantly monitors signal and current quality to alert the user of an issue before it creates the potential for engine damage.
INTEGRATED ENGINE PROTECTION STRATEGIES
Available strategies are based on boost fuel cut, fuel pressure (injector flow compensated for variations in pressure, sensor required), oil pressure, RPM (rev limiter), coolant temperature, knock control with feedback and lean protection.
NETWORK INTERFACES
Infinity is AEMnet enabled and will communicate with another AEMnet-equipped device and output to 3rd party dash/logger devices (not all 3rd party dash/logger devices may be supported).
INFINITY EMS ADVANCED TUNING PACKAGE
Certain Advanced Tuning functions, hardware outputs and sensor inputs (see "Advanced Tuning Package" below) for the Infinity Programmable EMS are sold separately. Please contact an AEM Authorized Infinity Retailer or call AEM Performance Electronics at (310) 484-2322 for more info.
INFINITY EMS TECHNICAL SPECS:
• Up to 12 peak and hold injector drivers
• Up to 12 (0-5V) ignition outputs
• 3 analog temp inputs (Additional 3 with Advanced Tuning Package)
• 11 analog voltage inputs (Additional 6 with Advanced Tuning Package)
• 7 digital inputs (Additional 1 with Advanced Tuning Package)
• 4 VR/Mag differential pair inputs (Additional 2 with Advanced Tuning Package)
• 12 configurable outputs (Additional 1 with Advanced Tuning Package)
• Variable cam control (up to 4 cams, application dependent)
• Dual internal wideband controllers
• 2 H-Bridge drivers for drive-by wire (Application dependent. Requires Advanced Tuning Package)
• 32 Bit, 200MHz 400 MIPS primary microprocessor
• 20 MHz auxiliary microprocessor
• 6" L x 6" W x 2" H (1.125" H w/o connectors)
• 24 Ounces/680.4 Grams
• 129 pin, fully-sealed IP67 spec ECU enclosure and connectors
INFINITY EMS FEATURES:
• Compatible with most factory and performance aftermarket sensors
• Includes start up configurations (supported applications only)
• ECU set up wizard
• User interface features 3D graphics
• Internal simulator
• USB 2.0 High-Speed communications
• Tune using USB communication port (optional weatherproof extension cable sold separately)
• High-speed USB data logging to mass storage device (4GB included, tested to 64GB)
• Internal data logging playback mode on every channel, synchronized with all controls
• AEMdata data analysis software included
• 2-Channel CAN included
• Runs on Windows-compatible software
INFINITY EMS CAPABILITIES:
• Airflow model based calculations
• Fuel control resolution to 1/10th of a microsecond (.0000001 sec)
• Multi-fuel capable
• Flex fuel compensated - fuel, ignition and boost with blend
• Open-loop fuel pressure compensation
• Ignition table, 20x20
• VE airflow table, map vs. engine speed, 20x20
• Configurable coil dwell (RPM, voltage and load based)
• Individual cylinder ignition trim (RPM based)
• Individual cylinder fuel trim (RPM based)
• 3D ignition trim maps (coolant and air temp)
• VE-based engine startup
• Real-time sensor diagnostics
• Integrated engine protection strategies
• Dual internal wideband controllers
• Target Lambda table, 10x10
• User adjustable charge temperature blend (CLT/AIT, engine speed dependent)
• O2 lean-out protection
• Electronic boost control (time based or target based)
• Idle control (stepper and pulsewidth)
• Programmable traction control, 2-wheel speed or engine acceleration (4-wheel speed with Advanced Tuning Option)
• 2-channel adaptive knock control
• 2-step programmable launch control (3-step with Advanced Tuning Option)
• No-lift shifting (Requires Advanced Tuning Option)
• User configurable soft-cut rev limiters
• User configurable anti-lag
• Single stage wet or dry nitrous control coming soon (3-stage with Advanced Tuning Option, coming soon)
ADVANCED TUNING PACKAGE:
Advanced Tuning Functions:
• No-lift shift
• 4-wheel speed traction control
• 3-step launch control
• Drive by wire (application dependent, coming soon)
• 3-stage nitrous control (coming soon)
Advanced Tuning Hardware Outputs:
• 1 high side driver (coming soon)
• 2 H-bridge channels
Advanced Tuning Inputs:
• 2 analog voltage inputs (4 additional coming soon)
• 2 VR/Mag differential pair inputs
• 1 digital/frequency input (coming soon)
• 3 analog temp inputs (coming soon)
MORE INFO
Please visit www.aemelectronics.com or call (310) 484-2322 for more information or to find an Authorized AEM Electronics dealer or Factory-Trained tuner.
AEM's Infinity Programmable Engine Management System is legal in California only for racing vehicles which may never be used upon a public road or highway.
AEM's Infinity Programmable Engine Management System is legal solely for vehicles used in competition which may never be used upon a public road or highway.
WARNING:
This installation is not for the tuning novice! Use this system with EXTREME caution! The AEM EMS System allows for total flexibility in engine tuning. Misuse or improper tuning of this product can destroy your engine! If you are not well versed in engine dynamics and the tuning of engine management systems DO NOT attempt the installation. Refer the installation to an AEM Authorized Infinity Retailer or call 800-423-0046 for technical assistance. You must also visit the AEM Tech Forum at http://forum.aempower.com/forum/ to ensure that you are using the most current information and software.
NOTE:
All supplied AEM calibrations, Wizards and other tuning information are offered as potential starting points only. IT IS THE RESPONSIBILITY OF THE ENGINE TUNER TO ULTIMATELY CONFIRM IF THE CALIBRATION IS SAFE FOR ITS INTENDED USE. AEM holds no responsibility for any engine damage that results from the misuse or mistuning of this product!
For technical assistance, please visit our forum or visit our dealer locator for an AEM Authorized Infinity Retailer near you.
ABOUT AEM
Advanced Engine Management's performance electronics are Engineered to Outperform. The company designs, manufactures and assembles engine management systems, wideband air/fuel systems, water/methanol injection systems, performance gauges, boost controllers, ignition components, fuel delivery components and adjustable cam gears at its corporate headquarters in Hawthorne, CA.
http://www.aemelectronics.com/files/Infinity_Software/Infinity_Specifications_Chart.pdf
http://www.aemelectronics.com/engine-management-systems-9/infinity-stand-alone-programmable-engine-management-system-90/infinity-12-stand-alone-programmable-engine-management-system-93/
software download http://www.aemelectronics.com/catalog-software-downloads-72/
Joined
·
11,288 Posts
http://www.motoiq.co...r-racecars.aspx
Just released MotoIQ overview
again no info about R35 version. Supra is one of the only ones atm.
Just released MotoIQ overview
again no info about R35 version. Supra is one of the only ones atm.
Joined
·
11,288 Posts
honestly the stock ECU will be dominated by EcuTek and Cobb. no real reason to go anything else due to the limited capabilties of the current crop of choices.
Next off will be stand alone ecu's. Motec, AEM and syvecs.
Motec already has alot of the development on the R35 done, i think they be writing more code for the M1 system, but it will be pretty good and offered soon this year. Syvecs will be the system to get and most likely the most affordable with what it includes (the sensors). The Motec system while great has only been tested at stock turbo, there is no doubt it will supply big hp (just like cobb, ecutek etc) but how it works with that power in the trans is whats its all about. Syvecs is already been tested and run at those high hp gtr's with more effecient transmission capabilities. HKS will be releasing the next version of the v-pro, but i dont think its as advanced as the syvecs nor the motec and costing alot. also the current v-pro needs the cobb or ecutek to get any more hp than the system offers stock from what i remember reading. greddy had some greddy labled system in there 35x (bensopra body kit), dunno if that will come to market or not and what it will include as of features.
AEM is unknown what capabilties it will offer for tcm integration. i have not heard of anything on the R35 front on this platform. Dunno any ETA either.
anyways, all these systems will make power. its the features, effeciencies, cost, software, intergration, logging, etc that will set each one apart.
Joined
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11,288 Posts
like i said Cobb and ecutek will lead the best results in that area. plenty of Asain and some German tuners will modify the stock ecu but will never advance to that of say an ecutek. its just to advanced.
as for changing ignition, spark, fuel, bla bla bla just to make power... lots of people can attempt that and succeed.
as for changing ignition, spark, fuel, bla bla bla just to make power... lots of people can attempt that and succeed.
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6,078 Posts
The question I am asking has to do with the fact that the stock ECU keeps making adjustment to whatever tune the standalones or piggybacks may have made, which means that there is a constant need to be re-tuning. Let me hope that makes it a bit plainer then, go check the VX-ROM, along those lines...
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