Traction control on a dccd car
 

Would traction control via an aftermarket ecu on a dccd car, and lets say with the diff open, kick in and stop power oversteer?

Or would it just lessen it?

Ignore that, was complete bollocks.

I'm no expert at all on this, but I have spoken to Paul@Zen about similar stuff on my ECU and I think a DCCD control function can be set up on a Syvecs. Whether it would perform exactly as you describe is another thing. Paul will certainly tell you if you give him a call.

Ah, I think I need to clarify. Forget any dccd controller. Would an engine ecu with traction control kick to stop oversteer.

I dont have first hand experience as I drive a classic without ABS or Traction control. I've just ordered DCCD pro to use with a six speed conversion. As far as I'm aware to only output the ecu has to the dccd set up is throttle position sensor. IRC cars with abs are a different story. I wasn't aware that there was another form of traction control other than the dccd fitted to Subarus. What model do you have?

why on earth do you want such a thing on a 4wd car, you need to be a complete tool to lose traction unless you are running lots of bhp and torque

It already exists in the DCCD-A units.
As you say more bhp and ft/lbs will overcome that though.

On a type r when the diff is open its really easy in the wet to get the rear out as its rear biased 65/35. All I wanted to know, without testing it on the road, is if traction control on my esl will actually stop it from happening.

We can discuss dccd controllers and settings all we like, but for a while I may be running controller-less until I fit my dccdpro.

Had the dccdpro on my last car and it works great, but I don't know how it works in conjunction with traction controll.

You can have look on MapDCCD or as above Syvecs will do this


Thanks,Jura

I think Andy Stevens might answer this one better. As he says, it's torque control rather than traction control on ESL. I don't know what that would mean to preventing oversteer but I think it's primary use is for launching from a standstill and stopping full torque being unleashed once LC has turned off. I have it too but haven't actually used it.

Would you not wheel speed sensors fitted to have proper traction control?

Agree on this Banny,for best or any traction control speed sensors will needs to be fitted at front and rear,but in theory you can use ABS sensors

Thanks,Jura

Why would you want to take away one of the best features about the Type R?

Just learn how to drive it, and I'm not suggesting your a crap driver just that it's a different style of driving, you need to set it up properly, get the correct line for a corner do all your braking etc before and keep the power on. I'm not saying full gas but you need to balance the throttle, the back end kicks out because your lifting off or your running lingalongs, also you do need to experiment with the Dccd and adjust it accordingly, sometimes when on the move i'll take another click or 2 especially in the wet.

Type R's require driving all the time even when not really pushing, but they are totally different to other Subarus, and will try and swap ends if you don't pay attention and always require driving in the manner mentioned above, it takes a bit of getting used to but it's just a style change that's required not electronic interference. :thumb:

Yes, yes I know i'll get stick about being a driving god, but all other Subarus flatter ones driving ability, Type R's take away the facade and expose you as an ordinary joe ham fisted numpty, then you either learn how to drive it while it tries to kill you, crash it or sell it, sometimes both.:thumb

What I couldnt understand was how the traction control was being applied No mention of aftermarket ECU in the first post so I was assuming it was a new age car. I'll shut up and f off now. Are there ABS sensors on all four wheels on all models eqiped with ABS?

this is kind of what i meant but i couldnt be arsed to write all that:lol1:

Hi there

Have look on those threads over on Syvecs forum

http://www.syvecs.co.uk/forum/viewtopic.php?f=6&t=558

http://www.syvecs.co.uk/forum/viewtopic.php?f=6&t=573

http://www.syvecs.co.uk/forum/viewtopic.php?f=7&t=560

And quick video showing the setting up



I assume his car is classic from the picture and yes ABS sensors are on all 4 wheels


Thanks,Jura

Guys, it was a very simple question that I asked. Will traction control stop power oversteer?

On my esl I can have traction control either on all the time, disabled or on a switch. If its on all the time then I may indeed lose the ability to power oversteer. I'm simply wanting to find out the answer to my question but as usual on SN its not as simple as that. People really do overthink things.

Also, no abs on mine so no wheel speed sensors. ESL uses a rising rate rpm algorithm to decide if traction is lost.

Look, I'm not being clever here but it makes no difference what version car it is or how I drive it or if I have aftermarket ecu or dccd controller a,b or c.

The original question has all that is needed to answer the question.

Hi there

Yes will stop power oversteer or you can control power oversteer etc,depends on ECU and how is mapped,set TC

If you want proper TC then Syvecs have best and Paul@Zen is guy with which I would speak

Thanks,Jura

Cheers for that. I may well speak to Paul or another mapper as mapping the traction control is something I understand at present. I will be fitting a dccd pro controller, which has arrived today, but even this doesn't have traction control. It does attemp to maximise traction to all wheels but depends on how aggressive it is set, so again you can get power oversteer.

Just as an aside my cars in my youth were mk2 RS2000's on which I loved sliding the back out. I'm a bit more reserved today and the type r also has a few more horses.

Won't affect it. It's tied into the LC on a timer so won't influence the action of a centre diff controller.

Very interested in your findings, a car with ESL msport functions and a properly set up DCCD controller should be an absolute weapon.

We are putting one on the ESL/Kamikaze/RaceDynamics gymkhana cars next season (although we have won all European rounds without it so far).

Andy, if I'm reading this right, the traction control only kicks in on and after a launch and then isn't operational until the next launch ?

I had the auto controller from Jeff at Dccdpro on my last classic. It still has the same adjustment as the manual controller. So as an example, if the situation dictates the first orange on the manual scale, the auto controller has that setting as its maximum lock % and then reduces lock when needed. Not sure if that's how dccd-a works, but I could just paste the car about and it was very neutral handling wise. I suppose I was just wondering if it would fight against traction control.

Yes, that's right, it won't affect.

I've seen a mappable dccd controller that had a decent range of inputs and 2 decent accelerometers. For gymkhana it seems to work best open on turn in and locked when into the manoeuvre, but we have yet to fine tune. Very useful bit of kit IMHO.

Not sure if you could map the dccd pro that way but it is mappable. You would have thought it was integrated into the ESL Andy! Can we have it please?

Yes. I'll chuck in stability control as well and lower the price to £195 :D

For tomorrow if you can!

I'm running 560bhp through a dccd box in a classic ( and have run 450+ for around 10 years like that and I don't need traction control. I'm a bit puzzled as to why it's thought necessary - the throttle pedal isn't a switch; it goes both ways.

If you just fancy doing it - then fine, its your money so it makes sense.

Do you need it? Not in my experience.

With you being a bit lardy the extra weight probably helps with traction!

Seriously though, I already have traction control which is on a timer at launch as stated above by Andy. I was wondering if it also worked during normal driving too and thought that it may interfere once I had my auto dccd controller fitted. Also, I anticipated running without a controller in full open mode until new controller fitted, therefore a very valid question in the wet when driving a dccd car, as you know.

Does it cut in on launch/ are you doing drag stuff?

My car runs fully open pretty much all the time, except for snow or whatever. I can't remember the last time I touched it. I fitted the DCCD to my P1 to get a more RWD bias rather than to play with the DCCD.

Re lardy - harsh but fair, but maybe not as lardy as you might imagine -6'1" and 16.5 stone/ 100 kg so the 560bhp does let me get up the odd steep hill ;)
Fat Boy moniker came from my rugby days when I was anything but fat - think reverse naming like Little John ;) It is getting truer these days mind :)

I always loved the line in lock stock "you're fat and look like you should be, but you're not"

Nice to hear about the dccd in open mode. I use it in the dry in open mode but have had the back end round in the wet a few times, mainly due to the previous coil overs being a bit too harsh. It sort of skipped and then broke away easliy, which I didn't like. I want it to be predictable and progressive.