MountainRunner

Hey Guys, The first event of the year is coming up shortly. It is a timed practice and I will have the driver trainer there. If you want to come and have a look or a run let me know. [email protected] The cost is $170 for a half day which is a minimum of 5 runs. I will be trying out a new format to try and get 6 runs for a half day. Fingers crossed. Any questions etc let me know. The calendar and 2013 rules are up on the site also www.timeattack.com.au Looking forward to seeing you there Paul

Hey Guys, The final rules and Calendar for the 2013 QLD Series at QLD Raceway and Lakeside are now up on the website. www.timeattack.com.au This year most of the changes are around getting the aero cars into the top class. There have been some serious developments in this area in the last year or two as you know. If you want to get involved send me an email [email protected] Looking forward to a big year at the track Paul

Hey Evan, sorry I missed this post. Just getting my head back in the game for 2013. Send me an email [email protected] and I will send you the manuals.

Sold. Thanks.

I have 2 x Brand new (2 years old but never been on a rim) semi slick tyres. Toyo 888 size 265 x 35 R18 for sale. You can have both for $150.00 I don't have a photo, picture a new tyre. Black and round Paul Ruzic 041 112 7374

Nothing really. The 4WD Controller is used to fine tune the ATTESA system, so if you make changes to your car / suspension etc you just dial it in the way you like with the new setup.

The steering wheel paddles are not connected to my controller. I'm not sure what he uses them for. I was pretty focused on the AWD system at WTAC. Next time I see him I will find out.

thanks for pm. question was about replacement g sensor. I have one built and tested in mark berry 34 GTR but I am having trouble finding factory plugs so it can be a plug in replacement unit. seems they are Mitsubishi origin but I can't find a supplier

The price is $649, you can order off www.ruzicengineering.com website. That includes free delivery. It doesn't have a 2WD mode switch in it. Its just built for circuit racing setup.

Hey Guys, Next Saturday's track day on Nov 3 has places available in the PM session. If your interested in having a go at Lakeside or are thinking about joining the Time Attack series next year, this event and the last one of the year on Dec 9 would be good ones to come along too. Both are open for bookings. Cost is only $150 for a half day and you will get 4 Sessions of Racing. Great value. If your interested, send me an email [email protected] We are planning a huge year next year, so if you are interested in getting involved let me know. Paul

I think it i $10 to get in, but double check the QueenslandRaceway website.

Only a week to go ! Still have places available if you want to book in shoot me an email ! Paul

QR JAP NATS 2012 TRACK DAY – SAT 22 SEPT – QLD RACEWAY PLUS $1000 Top TEN SHOOT OUT I am happy to announce this years’ Track segment of the QR JAP NATS will be hosted by Time Attack, at Queensland Raceway. We will be running a sprint event in the morning, with trophies to celebrate the class winners at lunch time. Then in the afternoon the top ten quickest cars will shoot out with a single lap, the quickest to win $1000 cash. This is a RACE WHAT YOU BRING EVENT. As long as it is a Japanese car you can race, no tyre restrictions apply in any category. CLASSES: A: AWD CLASS B: 2WD Naturally Aspirated C: 2WD Forced Induction Each entrant will receive two tickets into the gate. The morning event will be held on the CLUBMAN TRACK with 5 sessions of 7 laps (1 warm up, 5 hot, 1 cool down). Numbers are limited, so get in early and secure your spot with payment. The Jap Nats event also has drift, show’n’shine and many other attractions to check out over the weekend. To book in, email [email protected] to secure your spot now !! EVENT ARRIVAL TIME: 7:30 AM for Check In. Track Fees / Booking conditions The number of drivers booked for the morning and afternoon sessions are capped. Only pre-paid places are secured. Prepaid Bank Transfer: $195.00 There is a $40 cancellation fee. The remainder of your payment will be refunded. You must cancel at least 48 hours before the event to receive a refund. Timing There is a new timing system at QLD Raceway and Lakeside. To get timing you need a beacon. You can rent it on the day for $20 or buy for $80 from the office. General AASA License. You need an AASA license to race at either Lakeside or QR. This is with the racetrack and not Time Attack. You can purchase one on the day. $55 for the year, $25 for the day. Lakeside does run a strict noise restriction policy. If you break the noise limit you will be parked by their staff. If you have any doubts please sort out in advance as you will not be refunded if your car is too loud. Paul Ruzic 041 112 7374 www.TimeAttack.com.au [email protected]

Hey yea, the logger is coming along well. I am currently working with GT Auto to install one into the new EVO Track Car they are building up. I will put a full story of that up soon. Also got some Skyline projects coming that will be using it. Paul

I thought the golden rule was to never add up what we spend on modifications ! Being able to build the car of your dreams without concern for the cost is a pretty cool place to be. Got to respect the passion to chase the dream.

QR JAP NATS 2012 TRACK DAY – SAT 22 SEPT – QLD RACEWAY PLUS $1000 Top TEN SHOOT OUT I am happy to announce this years’ Track segment of the QR JAP NATS will be hosted by Time Attack, at Queensland Raceway. We will be running a sprint event in the morning, with trophies to celebrate the class winners at lunch time. Then in the afternoon the top ten quickest cars will shoot out with a single lap, the quickest to win $1000 cash. This is a RACE WHAT YOU BRING EVENT. As long as it is a Japanese car you can race, no tyre restrictions apply in any category. CLASSES: A: AWD CLASS B: 2WD Naturally Aspirated C: 2WD Forced Induction Each entrant will receive two tickets into the gate. The morning event will be held on the CLUBMAN TRACK with 5 sessions of 7 laps (1 warm up, 5 hot, 1 cool down). Numbers are limited, so get in early and secure your spot with payment. The Jap Nats event also has drift, show’n’shine and many other attractions to check out over the weekend. To book in, email [email protected] to secure your spot now !! EVENT ARRIVAL TIME: 7:30 AM for Check In. Track Fees / Booking conditions The number of drivers booked for the morning and afternoon sessions are capped. Only pre-paid places are secured. Prepaid Bank Transfer: $195.00 There is a $40 cancellation fee. The remainder of your payment will be refunded. You must cancel at least 48 hours before the event to receive a refund. Timing There is a new timing system at QLD Raceway and Lakeside. To get timing you need a beacon. You can rent it on the day for $20 or buy for $80 from the office. General AASA License. You need an AASA license to race at either Lakeside or QR. This is with the racetrack and not Time Attack. You can purchase one on the day. $55 for the year, $25 for the day. Lakeside does run a strict noise restriction policy. If you break the noise limit you will be parked by their staff. If you have any doubts please sort out in advance as you will not be refunded if your car is too loud. Paul Ruzic 041 112 7374 www.TimeAttack.com.au

Good question ordinary. I'd go for the 4WD Controller II. Don't worry about the GPS and just use the toggle switch to select between maps or even if your not too concerned play with one map until your happy. I can recommend a good starting point and even set the controller up for you when I send it out so all you do is get it wired in (which is not too hard and your performance shop would do it easy). fatz: PM sent

1. What method of adjustment? The AWD Controller II has a display and buttons on the front. You can select maps and tuning from there live as you race. It also shows the LatG, LongG, Torque on the display. For full system setup you can also plug in a laptop and setup everything through the laptop interface. The controller in Mark's R34 GTR was configurable through the laptop interface only. It also performed all the datalogging at WTAC (I got to get that write up done as well so you guys can see some logging from it) 2. Am I planning on selling the setup in the R34 GTR? I will put it together as a kit, how it will be setup and user configurable etc I am still working out. I will want to be personally involved in the first few cars we do as I want to work with the owners to ensure they get the best setup and I will use those experiences and feedback to develop the setup and tuning methods. I am planning on making a digital controller that plugs in for live tuning for the driver most likely. The experience we had on Mark's car was that I could tune 80% of the system from the initial data logging and then we worked together to fine tune the handling for the WTAC event. 3. Digital G Sensors, Speed? You are correct, a new digital G sensor is likely to give a better signal. The ones I am using are Automotive chassis rated and are very nice. The difference would be subtle. My main poiint above about the Tuned Digital G sensors was that the reason the effect is so noticeable is because of the tuning of the output and that having a pre configured tune was not ideal as being able to set it up yourself. I think a lot of the "slowness" in the factory system is in the ATTESA algorithms, thats why 'tuning' the lateral G sensor can make the car respond a lot quicker. Nissan had to make the car work in all situations, whereas we modify it and want it just right for track use. We were pretty aggressive in the setting up of the 4WD Controller II in Mark's R32 GTR but it has a lot of power 480awkw. In my own car I have the system set to a less extreme value. Mark did find once he had it in the ballbark he could make those fine adjustements to setup the handling the way he wanted it. In the R34 GTR I could make the torque apply and remove as quick as I wanted. This is where we had to do some tuning, as shock loading the front diff and instantly unloading it is not a good idea both for the mechanical longevity of the drivetrain and also for handling. The ramp rates of the torque are some of the parameters we were tuning on the car. 4. ABS Wheel Sensors to Shift Load? On the R34 GTR we used axle speed sensors as the ABS system along with all the sensors had been removed. Putting hall effect sensors on the bolts of the drive shafts was a pretty easy way to get speed. We also decided that this was a good way to go as we were only interested in the front to back speed differences, not the individual wheels. To make the system easier to install, I may add the circuitry to pickup from the ABS sensors, although most hardcore track cars have the ABS removed. 5. Setting up the Controller for a Track Day? The best way I have found to setup the controller is to keep in mind "less is more". You want to find the minimum amount of adjustment you can to make the car handle just right. If you slowly increase the tune of the maos you will find the point where small adjustments can be felt in the under/oversteer of the car. This is what you want. Once you have a feel for the amount of adjustment your car requires you can play with the maps and gain to fine tune. On Mark's R32 GTR, we setup two maps and two gain settings. It was like at the Optometrist where they show you two lenses and ask which one is better. Then show you another two. This is exacly what we did using the toggle switch. Mark would try both maps and gains and pick what he liked best, then make adjustments on that. 5. Controlling the 4WD Solenoid? I did not use a PWM signal to control the solenoid (a PWM signal is a high speed digital pulse of which the mark-space ratio is adjusted to apply power to the connected device. The connected device smooths the signal due to its mechanical inertia. On some motor control systems you can hear the audio tones of the controller as the motor changes speed). Instead I built a linear amplifier and control the solenoid with a true analogue signal. The solenoid smoothly follows that voltage. The response of the analogue output can be instantaneous if I wish, the speed of the signal (or solenoid) is not limited, it is totally controlled by the handling algorithms.

Thanks, I appreciate the feedback. I love making stuff for race cars but I am pretty crap at marketing them when finished

No worries, I have started a new thread here http://www.skylinesaustralia.com/forums/topic/407612-gtr-awd-torque-split-controllers/

This is a break away thread from the World Time Attack Thread, I will put some repeated info at the start so this thread can stand alone. Background: This year I had the opportunity to work with Mark Berry and his team on his 2012 World Time Attack campaign. Mark runs two GTR’s at the top level of competition. His R32 GTR which is now famous (being to race at Time Attack in Japan) and his formidable R34 GTR with 530awkw which is a weapon. Those who were at the PM session of the July 19 QR Time Attack track day would have witnessed it put down a 51:46 on the sprint track. You would have also seen the traction problems Mark was having trying to get it to hook up out of corners. This is where I got involved. Mark had bought my AWD Controller II for his R32 GTR and while he was picking it up we got to discussing the R34 and the problems the car was having. It was clear that I had to build a custom controller for the car (all the Nissan gear was removed, including sensors) and it had to be done before WTAC. The project went extremely well and anyone who was at WTAC at Eastern Creek would have seen the difference. Mark loved the tune ability and after some tweaks the car was pulling over 2G cornering. The AWD Controller II in the R32 GTR also performed, and the result surprised everyone when Mark did a 1:34.66 (that time would have won last year’s open class). I have a full story of my experience as part of the race team on: www.timeattacktalk.com I was speaking to Mark today and he said there are no secrets and that I can post up data logging etc from the event. I will put together a write up and get it up on the web. Refresh From WTAC Thread - Asked about my new 4WD Controller II The 4WD Controller II is a freshen up of the version I, some of the parts in the version I were no longer available so I did a redesign. The V2 has a better processor and optimised internal algorithms and the output is more accurate. Plus the GPS stuff. Its hard to say if you would notice the difference, it would depend on the rest of the car to some degree and the driver. The V1 controller does a pretty good job, the Version 2 is a refinement. The Controller in Mark's 34GTR is a whole other story. For that car I had to design the complete ATTESA system from scratch. Mark had removed all the Nissan factory stuff, computers, sensors etc. In that car I have: 1. Front Lateral G 2. Front Longitudinal G 3. Front Gyro Z axis 4. Rear Lateral G 5. Rear Longitudinal G 6. Steering Angle 7. Throttle Position 8. Brake Pedal State 9. Front drive axle speed 10. Rear drive axle speed The controller then takes all these inputs, does a pile of signal processing and outputs the control signal to the hydraulic system. I also added true linear output control of the valve for smooth operation (not using a simple PWM control signal). Question: How do the Digital G Boxes Work and Compare that are available I have had a close look at the digital G boxes on the market (one of the suppliers even sent me some technical info to see if my controller would control their sensor). The marketing is interesting as they are presented to be "faster than the old analog sensors" that are in the factory cars. On closer inspection you will find that they are not actually a true replacement unit as like for like. The digital G boxes are programmed to modify the lateral G sensor as my 4WD Controller does. The difference is that the digital G boxes are fixed to one setting which will be what a particular driver liked on a given day in a particular car at a given race track. My 4WD Controller allows you to tune the unit to the setup of your car and make adjustments on the day. If you have a read of the article I put up on TimeAttackTalk.com I have quotes from Mark Berry on how much he loved being able to tune the unit live. The digital G boxes are equivalent to one setting on my controller. I'd guess you would get the unit and put it in your car, 'feel a difference' and think it was great but when you went to put down a good lap time end up frustrated that you could not make any adjustments. Are the digital G sensors "faster" than the factory sensors? I have data logged the factory G sensors and if they are working properly then I don't think there is any issue here. Mark Berry's R32 GTR put down a 1:34.66 at World Time Attack using my 4WD Controller II and the factory G sensor and factory ATTESA. Having said that, if the factory sensor is damaged then replacing it would be a good idea. In Mark's R34 GTR I was testing a new Digital G sensor I am building (it was the front Lateral G and Longitudinal G sensor). The difference is I will make this a true replacement sensor, and my adivce would be to use the 4WD Controller II as the means of adjustment. That way you will have a truely tuneable system. On a big power, highly modified car such as Mark's R34 GTR, the factory system is well out of its tuneable range. That's why we built a new system from scratch, and as you see from the list above, it takes a lot of inputs to properly control the car. But with this level of control we were able to tune the handling in fine detail and ended up with over 2G of lateral load through turn 1.

Its pretty easy to install. I do have a wiring table you follow to do it. Plus I'm a phone call away if you have any problems. The external alarms are really good when you are on track, I built this thing for myself with keeping my engine safe at track days being the primary focus. Thats also why it has the alarm hold functions, external page select and alarm acknowledge buttons (I put these in the centre console on that little verticle surface where your fingers hand when you put your left arm on the arm rest, that way you don't have to look for anything while driving its at your finger tips). Cost for the unit is $499 Alarm accessory kit $59 (buzzer, 2 stage shift light, alarm light, ack and page select buttons) Sensors depends on what extra's you need. I have made the unit to be as flexible as possible. If you have sensors already there you can just sniff off them and put the calibration into the monitor. The inputs have been designed to be fail safe and high impedence so any other system will not notice the connection. Plus you got to love the mapping of Oil Pressure to RPM, and Fuel Pressure to Boost, so you get the alarm as soon as there is a problem, not once those pressures have totally died.

The 4WD Controller II is a freshen up of the version I, some of the parts in the version I were no longer available so I did a redesign. The V2 has a better processor and optimised internal algorithms and the output is more accurate. Plus the GPS stuff. Its hard to say if you would notice the difference, it would depend on the rest of the car to some degree and the driver. The V1 controller does a pretty good job, the Version 2 is a refinement. The Controller in Mark's 34GTR is a whole other story. For that car I had to design the complete ATTESA system from scratch. Mark had removed all the Nissan factory stuff, computers, sensors etc. In that car I have: 1. Front Lateral G 2. Front Longitudinal G 3. Front Gyro Z axis 4. Rear Lateral G 5. Rear Longitudinal G 6. Steering Angle 7. Throttle Position 8. Brake Pedal State 9. Front drive axle speed 10. Rear drive axle speed The controller then takes all these inputs, does a pile of signal processing and outputs the control signal to the hydraulic system. I also added true linear output control of the valve for smooth operation (not using a simple PWM control signal).

I have info up on www.ruzicengineering.com check it out, happy to answer all tech questions about it Look under EM PRO II (Engine Monitor II)

Finally got my story finished - as part of Mark Berry's crew this year with my ATTESA controllers etc. I have put it up on my website www.timeattacktalk.com I will hopefully get the tech one written this week with data logging results etc. (still catching up on sleep )