GTM Traction Control NA
 

I got it yesterday .
The first thing that you notice is how well it is packed in the box and how well the box is taped up for good safe shipping. It takes longer to get it out of the packaging box, than to install it. The instructions are perfect and it takes about 5 min to install. (so easy even i can do it).
Its plug and play.
My car is a 7 AT. After i ajusted some peramiter on the unit i went out to see how the car drives with this unit. You have to turn the nissan VDC off.
It did a few 0 to 120km runs in "D" and it felt just as quick as when i take it to the track. The wheels spin when it shifts at 7800 with out the TC on and with it on you can hardly tell that they slip its only a little blip that you feel.
There is no contest between the Nissan VDC and the TC unit.
Im still finding out which setting are best for my car, its hard to tell the differenece between the stock sport tires and my 305 35 18 drag radials as the aceleration on the street feel just as fast as at the track.
It pulls really hard on street tires, It feels much faster.
According to Sam i should have my GTM SC in a 2 weeks i will post on the the TC unit with the SC.
It should give me perfect aceleration with the SC as the car will be pushing 500+ rwhp compared to my 322 that i have now.
It going to rain here tomorrow and i can not wait to test it out in the rain as Sam says that it will be increadable on how it will acclerate and go aroung corners.
The car is going to the Ontario Z Drag day this weekend and i will post the times with the drag radials using the TC unit.
Z

I'm stooked to hear how it does in the rain. I want the unit before i go FI as well
Do you have any pic of where you put the adjustment knob? Do you also track or just drag race?

i do not track the car as i can not drive well enough.
right now i have it on the steering columm under the tack. I just placed it there as i have not done the pererminant in stall yet. I think that i will have to put it in the area where the nav system would go my car does not have one,

Let us know how it performs :tup:

This is on my "to do" list :driving:

Hmm I guess I was assuming that kit used its own wheel sensors, throttle control, etc and would take some serious install work. Are you saying it just hooks into the stock ECU and works with the stock sensors, and adjusts the throttle through the ECU as well?

yes . it hooks up to the wiring harness on your ecu. It goes between the ecu and the factory wiring harness.
The workmenship on the GTM harness is outstanding.

did you manage to hide all the wires and TC box under the dash near the ECU? i haven't really looked at mine yet. No clue where to put the controller.

very interesting. Looking forward to it.

Awesome! Are you going to make any runs with just the Traction Control (before you get the SC)?

Glad you received the unit and are happy with it. Was hoping you could expound upon the above comment. I just want more technical detail on why this unit is so much better than the factory traction control. I realize that it may take some time for you to fully appreciate all the benefits of the new TC.

Pics of the control unit? :)

You can read up on the basics of the RaceLogic traction control system here: Racelogic - Experts in data logging, video logging & GPS. Assuming it works as advertised (and I have no reason to believe it doesn't), it's vastly superior to our stock VDC for high performance driving. Very expensive though, ~$2k-ish?

So, question z eliminator: Now that you have Launch control, tc and automatic transmission...exactly which part of driving your car do you do?

Also, I dont think you're going to make 500whp.

Love this TC unit though, you should try and take your car to a road race track sometime so you can really feel it working through the turns! You better catch jnaut now!

Push the paddle shifter for the next gear?

So, question RCZ: now that you have synchronizer gears in your transmission, SynchroRevMatch, power steering, power-assisted ABS brakes, a safe electronic rev limiter, a rear view mirror, an awesome suspension dampening system, and amazingly advanced tire rubber compounds... exactly which part of really driving your car do you do?

Don't hate on technology, or we'd all be driving these:

http://upload.wikimedia.org/wikipedi...3hp%29_1st.jpg


Edit: adding this link for background on the photo: http://en.wikipedia.org/wiki/Auto_ra...rst_motor-race

Thats funny chit !!!!!

wheres the steering wheel on that thing.

Yes, this is all done through all sub harness that we supply with the system, It was not easy but we wanted to offer true offer a PNP system.

We timed our self and it took us 1:36 to install the system on the car, and it was ready to drive .

Sam

Thank you Steve for posting, glad you are enjoying it.

Sam

My guess is it uses a tiller control?

i want noa

The best part of driving the car is the christmas tree at the drag strip. No automation here just you and the other person beside you.
I just have the unit on the floor mat now . Have not thought were im going to put it yet and i have the controler on the sterring wheel below the tac.
RCZ its all about the car with the most toys. ( products that work and are true and tested when you get them). re. stillen SC's.
I do not think that i will beat Jnauts time it a very fast time as i have very little slip with the drag radials on the car. If i get into the 12.3 i will be happy. That a very fast time for a 7 AT with a stock VB all motor.
Sam please send me a modified VB, or a fully built 7 AT. ( do not put this on my account), so that i can beat Jnauts time and RZC will be a happy.
I will do a few passes with the TC on and the TC off, will post times sunday morning .

Z

Nice review Z eliminator looking forward to your results at the track once you get your supercharger.:tup:

Every one of the things you listed are assists to things I still have to do anyway. I still have to shift, still have to steer, brake and control the car. So which part of driving do I do? All of it. On the track I still have to launch the car, modulate accelerator to keep wheelspin down, shift as fast and smoothly as possible manually all while making sure I'm still going straight.

Don't get sassy. I was just commenting that this is, as he said, becoming a question of how much you can remove driver error and how efficient you can make the car at putting all its power down. Some might argue that's taking the fun or skill out of it too.

A lot of Formula 1 drivers were very happy when they got rid of TC a few years ago even though they knew they would lap slower.

All that being said, I am also very much looking forward to Z Elim giving jnaut some heat. Only way to keep making cars faster.

Hey, you started the sassy :p

For Z Elim he's drag racing anyways, I think that's a whole different conversation since it's already such a small subset of the complete driving experience.

But it really is a big continuum. For those all about just the raw driving experience and manually controlling everything, there are options to go a little more old school just to experience all of the complexities of driving outdated technology. I guess you can go as old school as you want in say a little Super-7 style kit car where you pick your own components.

But even with our 7AT (or similarly in terms of controls, but better performing by far: PDK/DCT type systems), you are still making shifting decisions the same way you do on a manual, it's just taken all the challenge out of actually executing the shift (pedal operations/timing).

Similarly with real traction control like RaceLogic, you do still have to pick an appropriate speed and line through a corner - it cannot defy physics, and will not save you from entering a corner way too fast on the wrong line and ending up off track. It just perfects the fine control of holding the throttle perfectly at the slip limit for you.

I think to some degree what you want out of racing experience is going to be personal preference. For some people who want all the tech on the car they can get, "racing" is really about equipment setup, line choice, gear choice and enjoying the Gs. That alone can be a fun challenge. Others (most racers these days?) want more challenge to feel they've conquered a more raw version of driving: explicitly controlling gear engagement, etc.

Never thought the install would be that easy. Hiding the wires took longer than the install. Still trying to figure out the best place for the controller.

Siked to hear the results

How did it go?

The TC unit is not really suited for drag racing with a 7 AT. The launch control works with a 6 MT. ( spoke ro race logic about this ). Best time was a 12.81 The car ran straight as an arrow. There was no taction on the line as the launching pad was terrible half rubber and half bare ashault. Best 60 ft times were 2.059. The DA was 1890, NOt good for the car making power. Its hard to belive that you can spin 305 35 18 drag radials !!!. This has never happened before. I also have line lock on the car and the burn outs were great so heating up the tires was no problems. The times went from 12.91 to 12.81. Please not the brake fuse was also pulled.
When i disconected and removed the TC it ran a 12.67 with a 1.95, 60 ft time.
when i ran the 12.42 the DA was 10. If you ajust the times for a DA of 1890 the 12.67 is excellant. with a better 60 ft time it would have gone 12.53. Not bad for an all motor car. I race a fully modified Mach ! mustang who had slick's and slinney's. He got me off the line but i ran him down. He was running 12.69 on his best pass.
With the TC unit on the car ran richer on A/F.
If the track was in better condition it would have run a low 12.5's or 12.49 with a 1.85 60 ft time with the TC on.
I had the slip set for 10%.
Im very happy with the times as not many cars were quicker than mine and everybody had bad 60 ft time's
With the TC on you can drive it with 1 hand on the wheel and it will go straght as an arrow.
Now this was the first time at the track and next time i will be going to my regualar track were i cut 1.85 's all day. I will post on it then.
the 12. 67 pass i had to drive the car a lot harder than the 12.81 pass with the TC on.
Driving on the roads you can not beat it has the car had perfect traction and drives like a dream.
All you have to do is go around a nice sharp bend in the road and floor it. You will leave the guy beside in your dust. It cuts the engine power very nicely and give you perfect grip. once the tire's stop slipping it aplply's full power. You can not do this with out the unit on.
If i was bracket racing nothing and i mean nothing would have beat me as could run 12.81 to 12.82 all day with the unit on . with 2.059 60 ft times.
Now when i get the 530 rwhp GTM SC this unit will work even better on the car.
Z

So I assume it's safe to say that this unit works best with high HP applications and tracks (road course).

Curious to see how the unIt performs for road course use.

All the research that ive done indicates that it work great on raod course. The harder you push the car the more inpresive it is.
at the drag strip we tryed a lot of differnt things but the weather was terrible as it kept drizsling rain most of the morning causing the track conditions to get worse as the day went on. There was no sun to dry the track out,
Just a terrible day and the start line was just brutal.
I will take a 12.67 any day in those conditions.
Z

Z-elim, I never saw an answer to this earlier: did you install a higher-stall torque converter already? The stall on our stock converter is pretty low, and that alone would have screwed up "launch control" if you were setting the racelogic at 4K or whatever.

Yes he has the higher-stall torque converter from GTM :tup:

Hey Z, I was having a hard time understanding your post. You are saying this isn't good for the drag or am I reading this wrong?

If you have an auto matic 7 AT it will not work well for drag racing,but if you have a 6 MT it will launch you like a missle. I can hold the car to 1900 rpm on leaving the line with the gas and brake on. (you have to pull the brake fuse or the ECU will kills the motor.
I have a GTM converter. I was hoping for a 2800 rpm stall but it only 1900 to 2100 rpm.
The converter took my car from 12.85 to 12.42's. Thats a big improvement , on that run it held to 2500 rpm. ( i data logged that run). Im now talking to pro torque about getting a 3200 stall made for me but i do not have a spare converter. The problem also is that the back brakes will not hold the car. Im not to sure what effect the brake fuse has on the TC unit when you pull it,
Going back to the converter, My car shifts harder with it and faster, 0.31 to 0.35 seconds.
1 st to 4th. 4th to 5th is 0.61. It makes a big difference . Over the winter i may send it out to get the stall increased.
Its a good mod but refilling the tranney is a major pain, took me 3 times till it was full.
Do not let nissan use there procedure for filling your tranney as they drain it and refill it.
I was down 2.2 Quarts after they did this and out 188.00 dollars. Talk to Sam for the proper way to fill it.
With the TC on the car burns more gas not sure why couild be my heavy riight foot.
with the street tires on and set at 10 % it a terror on the road especially from the stop lights. Just could not make it work on the drag strip.
When i shift at 7500 rpm there is always some tire spin as the tac hit 8000 rpm with the TC on this does not happen.
Can not wait to see what it will do with the SC on 500 + rwhp.

Z

A little off topic here, but Z elim what do you think are the best shift points for a stock or relatively stock 7AT? I usually just try to get close to redline when I shift at the drag strip.

i have bumped my limiter to 8100. I try to shift at 74 to 7500 rpm .
there is no real power abouve 7400 rpm,
My tack is also out by 200 rpm at the top end so 8100 = 8300 rpm.

Z