Syvecs S8 R35 Ecu - The Pinnacle Of Ecu Tuning For The R35

[mindlessoath]

Let’s start off with something I would suggest pretty important, you can fully adjust the

Torque Actual and Torque Demand Maps live which Syvecs have mapped to copy as

stock presently. Syvecs did some testing increasing and reducing actual torque

and the difference was brilliant. (See link for logs below) Can make clutch

pressure apply more and less properly without having to increase touch

points which can make low down driving not nice. Can also adjust the slip

and shift point by changing the torque tables.

This made power go up and clutch temps to drop!

Link to Logs: http://www.mediafire...mqigdzya0h17hbu

On other ECU’s available you can only increase the clutch Demand which is not the

right way of doing it for more clamping and why many have experienced

issues.

Features which are stand out for the GTR:

- Ability to use any throttle body for example if a big power vr38 wanted to

use some ls7 TB units.

- Fit any sensor to monitor and have trips from anything like crank case

pressure to damper positions (great for monitoring down force) etc

- Trips on important parameters like if oil temp gets too hot or oil

pressure drops at a set rpm

- Fuel pump control of both main and sub pumps

- Configurable Individual cylinder closed loop knock control, to suit any

cylinder modification with adjustments to frequency, windows for listening

and gains for each cylinder. Also in event of Severe knock full cylinder

shutdown.

- Monitor and trimming of 6 egts

- Built in data logging which can capture data at up to 1000hz and log for

over 8 hours

- Adjustable boost level, traction levels, launch levels and engine maps

through steering wheel buttons

- antitheft and valet modes

- pit lane limiter strategies

- ability to control any external items like having adjustable rear wing

linked to parameters like G force or exhaust valves etc

- fully adjustable traction control which links into lateral g or steering

angle from abs unit. Up to 8 different maps for level of control adjustable

on either steering wheel or external Pot.

- ability to change torque levels or demand levels sent to 4wd unit and tcm

Ecu for changing up shift and down shift points, Clutch pressures and diff

tightness.

- change torque reduction levels on shifts, very useful on big power gtrs as

the max amount on stock Ecu will not provide enough torque reduction on

shifts and overtime damage components

- change blip request amounts

- Run up to 7bar map sensors

- Change injector deadtimes based on voltage levels for proper control

- Change injector end angle to ensure injection point is proper suited. Very

important especially if using big injectors.

- 4 different pedal to throttle angle maps with multipliers for different

parameters like speed etc

- Fully adjustable closed loop boost control with launch level adjustments

and trims for turbo speed, act, ect, egt etc

- live tuning of any map

- Full VVT control

- Full Control over Fans

- super fast connection using rj45 Ethernet connection so ability for live

tuning anywhere in the world or even on Track if connected to wireless unit.

- Connect any race series dash or even one of our partners small can

adjustment /display units

- control up to 12 injectors so on big power vr38 engines ability to run

staged injection

- Wet and Dry nitrous control with ability to drive solenoids directly and

control n20 heaters via pressure monitoring

- control high or low impendence injectors

- view any input live with built in scope up to 1000hz

And much more which they are still working on.

Here are the Spec's for the Syvecs ECU used for the GTR:

Processing:

■Powerful RISC CPU for advanced strategy execution

■Custom synchronous FPGA processor for engine position tracking and output

diagnostics up to 25,000rpm

Outputs:

■28 user configurable general purpose Pulse Width Modulated power outputs,

including:

■8 Ignition Coil outputs IGBT or TTL (Software configurable)

■16 Fuel Injector outputs

■2 Full Bridges also configurable as 4 Half Bridges or 4 PWMs (DbW &

HDP-5)

Inputs:

■24 user configurable general purpose analogue sensor inputs, including up

to 16 bipolar, inductive or hall effect speed / engine position inputs

■6 dedicated inputs, including:

■2 Acoustic knock sensor inputs

■2 Wideband (NTK) lambda sensor interfaces†

■2 K-type thermocouple sensor interfaces

Interfaces:

■100 MHz full duplex Ethernet for calibration, configuration and data

download

■3 CAN 2.0B† interfaces for communication with other controllers or

logging systems

■RS232 serial interface for communication with other controllers or

logging systems

Memory:

■4MB or 8MB† battery backed internal logging memory

■Downloaded in under 10 seconds via Ethernet

■Time/Date stamped data via real time clock

Power Supply:

■6 to 32V input voltage range with reverse polarity protection

■2 regulated 5V sensor supply output with individual short circuit

protection

■Software configurable (5 to 12V) sensor supply output (eg for 10V load

cells)

■Unregulated sensor supply output which tracks the ECU supply voltage with

nominal 17V clamp

■5 Separately protected sensor and communication ground inputs

Physical:

■88 pin automotive connector

■CNC machined, ‘O’ ring sealed, anodised aluminium case

■Maximum dimensions including the connectors are 178 x 122 x 36 mm

■Total mass is 485 grams

Here is some Quotes previously made...

The syvecs is now fully running as a Standalone on our test car while keeping the Can Bus system completely happy. All Dash’s work and we have taken everything that we would want of the Canbus also for fully adjustable traction control based on steering angle and Lat G. So in answer to your question regarding TC it is fully adjustable which can be adjusted to achieve different amount of wheel slip by either the use of an 8 Position Pot or via using the cruise control up and down buttons. It also can be used to target a certain amount of Lateral g in corners and correct the engines torque to adjust for it.

Also fully adjustable launch control with proper retard for full boost of the line and then have complete control of the ramp in torque which allows you to control your engines Torque based against long G or road speed for gaining a perfect 60ft every time. This again is fully adjustable and the logging for this is fantastic especially for drag racers.

All the actual, desired torque values, status signals etc are outputting correctly and fully adjustable to the stock TCM so we change clutch clamping etc which is all tested.

Also have full control over the Fuel system for controlling both pumps etc and have trips to protect engine on relative fuel pressure (Fuel pressure against Manifold pressure) If one of the pumps fails and drops pressure on boosts it instantly trips!

Proper NTK Lab grade widebands which wire straight into ecu for correct a/f ratio not estimated on stock ecu due to the heater controls of the lambdas not being adjustable and heat changing massively when removing the cats etc.

Fully adjustable filtered knock control to suit any combustion chamber size not rely on a Strategy that is designed for stock size with cast pistons.

6 Egt inputs and trimming to suit...

Fully adjustable sensor inputs for monitoring everything including trips for like oil pressure, turbine speed sensors, crank case pressure etc

The benefits are actually surprising the more and more i go over them but a full release will be done soon with a few surprises.

But the datalogging is one of the massive benefits and one of the main reasons for doing the package for cars which need to be monitored constantly in the pits and have limiters etc to comply with race series.

Dont forget though that the package will come with a Rj45 ethernet connector for connecting to the units and i daily dial into ecu's over the web to tweak and train users.

Cost wise will be released by trader/Vendor

[domino_z]

welcome to the forum mate

Edited January 28, 2012 by domino_z

[R-PWR]

Lol Welcome

[mindlessoath]

lol, guys i joined in 2008

im mostly a lurker even before my join date.

Thanks for the warm welcome

[Martin Donnon]

A good example of the Syvecs Traction control in action in Targa Adelaide. You can hear it cutting the engine to maintain traction off the line and through some of the tight corners (its the machine gun noise, you hear it again at 1:15)

Unfortunately while fighting for the lead against a Super Trofeo Lamborghini it tripped over the white line front first and put them out of the event. From the 35s running in Targa Adelaide at the time (the rest of which had various different management systems both factory and aftermarket) it was easily the fastest running head to head.