Racelogic Group Buy Feeler, Part 2
 

This is just a feeler thread to see if there is any interest in another group buy for the Racelogic traction control system. There are going to be a few things different about this offer.

1) There will only be one option for the DIY
2) There will be two options for PnP
i)PnP Canbus with black digital adjuster, launch control, patch harness, prewired. Some basic wiring skills required for hooking up power and ground. Pricing includes everything required, shipped to your door (North America). $1900

ii)PnP Analog with black digital adjuster, launch control, no lift shift, WSS adaptors, Patch harness, prewired. Medium wiring skills required as some splicing (4 wires) will be involved on top of power and ground. Pricing includes everything required, shipped to your door (North America). $2400

ii)DIY Analog with black digital adjuster, launch control, no lift shift, WSS adaptors, 12v to 5v, resistors, shipped to your door (North America). Customer responsible for getting their own patch harness, and wiring. $2000

More info on the DIY can be found on the old thread: http://www.the370z.com/group-buys/68...ol-system.html


Before my inbox gets flood with questions, I am going to try and proactively answer some I think will come up.
1) Q)The pricing seems more expensive then the last one
A) The new pricing reflects the price increase that Racelogic had effective August 1st. The pricingnow also includes the patch harness, materials, and labour for assembly.

2 Q) Is the no lift shift worth the extra money
A) In my opinion it is, but it would honestly depend on the application being used. If you are doing a lot of tracking (especially with a boosted application) the no lift shift is a must. The fact that your boost is held at peak while you are shifting is guaranteed to speed up your times. If you just like driving hard, you will get the same effect.

3 Q) Can't I just powershift?
A) Yes you can, but the no lift shift eliminates a lot of the negatives that come with power shifting. The margin of error on power shifting is small, where the no lift shift will increase that margin by reducing the amount of load on your transmission allowing the syncro's to mesh much easier. I believe ruining the syncro's in our transmission means replacing, which is costly.

4Q) Is the Racelogic really that much better than the factory VDC?
A) Its night and day. The racelogic is designed to cut one injector pulse at a time. This is MS at a time. Compare that to the factory system which is a few seconds at the time, there is no bogging feeling, and if you're in boost it will not have a negative effect as the pulses from the remaining injectors will continue to spool the turbo.

5)Q) I have an AT transmission. Can I get the system without the launch control?
A) The canbus system only comes with the digital adjuster and the launch control. There is an analog version without, but by the time you add the WSS adaptors and extra wiring it is not worth switching the system. If you are brake boosting at all, the launch control may come in handy with maintaining the RPM as it should sense movement and not gearing.

6Q) What is everything included?
A) When I say everything, I mean double sided tape, zip ties, resistors, 12v to 5 v converters, wiring. It will all be in the box when you open it!
I will add more questions as I receive them, but these were always the most common. If you would like to purchase the system without assembly or patch harness, send me a PM and we will work out pricing.

To all *STAFF* Im well aware of the "Group Buy" restrictions.

I will be in touch with *AK* immediately if I have enough interest as the first group buy did.

Information about the system can be found on racelogics website:

RACELOGIC Traction Control is universally recognised as the best aftermarket system available. It does not only dramatically reduce the chances of an accident, but also positively enhances the performance of the vehicle.

Once you have driven a powerful car with RACELOGIC Traction Control, you will never want to be without it.

In a rear wheel drive car you can use full throttle around a corner with greater confidence that the rear end isn't going to suddenly break away.

In wet and slippery conditions the car accelerates as fast as grip allows without skidding all over the road.

It does not only positively enhance the performance of the vehicle, RACELOGIC Traction Control also dramatically reduces the chances of an accident. This is why companies like Gumpert and Koenigsegg choose to fit our system into their cars.

HOW IT WORKS

The system works by monitoring the speed of all four wheels using the ABS system or specially fitted sensors. When wheel spin is detected the engine power is reduced, by cutting a single injector pulse, until grip is resumed. This occurs in a thousandth of a second, and appears to the driver as a slight misfire with no loss in acceleration.

Maximum acceleration is achieved by limiting the slip between the tyre and the road. The point at which a tyre is just beginning to slip against the road gives the maximum coefficient of friction value.

Graph showing Friction vs Percent Wheel Slip
http://i18.photobucket.com/albums/b1...psf406aac0.png
From the graph above it can be seen that the maximum coefficient of friction (µ) occurs at a slip between tyre and road of 10% when dry, and around 5% when wet.

Many factors affect the ideal level of slip, wet / dry conditions, speed of the vehicle, lateral g-force (cornering), tyre compound, tyre pressures etc. Ideally the driver should be able to dial in a base level of slip that takes into account weather and tyres, and the system should adjust automatically for speed of the vehicle and lateral g-force.

When cornering, the system will reduce the amount of slip available, to prevent lateral slip from occurring, and vary this amount depending on the speed of the vehicle. At high speed, low grip situations, this slip should be around 1-2% to maintain forward momentum, and at low speed high grip situations, this can be much higher.

Cutting a single injector pulse

The idea of cutting fuel to an engine sets alarm bells ringing in engine builders, as they all know that running a lean combustion mode will elevate in-cylinder temperatures very rapidly. The denser the air/fuel charge, the more heat the lean burn can generate. Therefore it is vital that a fuel cut system will not cause a lean burn.

RACELOGIC Traction Control prevents lean burn by removing 100% of the pulsed fuel delivery – essentially the affected cylinder takes a gulp of fresh air; the in-cylinder temperature remains virtually unaffected.

Prolonged fuel cut on one particular cylinder would cause scavenging of the petrol lining the inlet tracts, and when the next full fuel pulse arrived, it would be partially reduced in quantity by the re-wetting of these tracts. RACELOGIC Traction Control rotates cylinder cutting to prevent this situation from occurring.

COMPONENTS

Digital Adjuster

RLTC-Digital-AdjusterFeaturing a backlit LCD screen and simple rotary selector button and billet aluminium faceplate, the Digital Adjuster controls slip levels but can also be used as a setup and diagnostic tool, and features many display and configuration options.

Slip levels are adjustable in 1% increments from 0% up to 25%, and launch control comes as standard. Cut level thresholds, rev limits, wheel sizes and RPM operating levels can all be altered in real-time. The display option will represent, in a graph or text format, wheel speeds, RPM, and cut levels. In addition an injector cut feature allows diagnostics to be carried out without the use of a laptop computer.

The adjuster can be added to an existing Traction Control setup as an upgrade – please contact us with the serial number of your TC unit to check compatibility.

RLTC-Analogue-Adjuster

The Standard Traction Control system has six degrees of operation, which equate to degree of oversteer in RWD application and degree of understeer in a FWD application. The six levels are 0% wheel slippage (Wet conditions), 5% (Dry), 10%, 15%, 20% and off.

Setting a RWD vehicle to 5% in the dry will deter the rear end losing traction and a tail slide occurring. 5% in a FWD car will deter excessive understeer.

If the weather conditions deteriorate whilst the car is in use the system can be adjusted whilst in motion down to the wet setting and 0% wheel slippage, making the car much safer to drive in adverse conditions.

Launch Control

Launch control is a function within the Traction Control system designed to automate standing starts to maximise the initial acceleration. It is activated by pressing a button on the Traction Adjuster when the car is stationary.

This will bring in a secondary rev limit (for example 4000 rpm). The throttle can be fully depressed without over-revving the engine. The car is put into gear, the throttle floored, and then the clutch is engaged, whilst the launch control system controls the wheelspin and revs for the perfect start.

On a turbo charged car, if the launch control is active, and full throttle is given for two to three seconds, the boost pressure will build up before the clutch is released, resulting in stunning off-the-line performance.

The launch control rev limit can be programmed via a laptop computer or via the Traction Adjuster.

Full Throttle Shift

The full throttle gearshift system is activated by a switch fitted to the clutch pedal, either a hydraulic switch or a mechanical switch. Once the clutch is depressed, the system automatically drops the engine revs down by using a momentary rev-limit, allowing the next gear to be selected without lifting off the throttle. Because the throttle is always fully depressed, the engine is instantly back on full power, and on a turbo charged car the turbo is still producing boost. Tests have shown up to 0.1 seconds can be gained per gear change.

Full throttle shift is a firmware upgrade available either at time of purchase or subsequent to fitting.

After talking with racelogic, I was able to get them to honor my old pricing from the previous GB. I have adjusted the prices. It seems like there is far less interest this time round.

Keep in mind this is just a feeler thread to see if there is interest. If your somewhat interested feel free to post questions.

My hope was the 3 participants in the last one would have some feedback by now, but it seems like all of their builds are delayed.

I am still interested as I was last time, but finances are a pain in the a$$ right now

Daaaaaaaang! Tempting.

Interested, although I don't have 370z, I got a 2007 350z. Unit most likely will be the same, harness may need to change among other things as required. I can get in touch with RL to figure out the changes if you can forward me an itemized parts list.

PM Sent

I'm interested in a PnP kit.

I'm not in any rush so I don't mind waiting on other members for what ever reason. :tup:

Sub'ed for updates.

I am also interested but for 06 350z as well.

I know this is old and its discontinued but anyone out there have one for sale or point me in the right direction - thanks

I'd be interested in a full system flat shift etc 13' 370z 6M

Who has one of these laying around

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