Hi Everyone,

I am getting a bit exasperated with my car just at the moment. I has it mapped and as I have noted before I have done just over 1000 miles on it. The problem I am finding now is that I am wheelspinning everywhere, even on bone dry roads.

To put it into perspective if I give it anything but the slightlest tickle and ride the clutch slightly it wheelspins. It has trashed a set of Pirelli's already. This happens on limp home mode as well. I am having the switch selector replaced on Monday so we will be back on turbo again which will add to the issues no doubt.

Prior to the map it never wheelspun, it was press and go. I realise that torque has increased etc but it has made the car very uncomfortable to drive.

I realise that there is only a little patch of rubber in contact with the road etc and the reason for a wheelspin is that it fails to get traction on the road surface. DCCD (If I understand it correctly) makes a user changable bias. I have a WRX so my diff cannot change the bias to the wheel) you can vary how the 4WD places the power down across the four wheels.

Very unhappy with the map as it has essentially made the car undrivable in any pleasurable sense. I am going to ring up and ask them to just put the stock map back on and accept I have lost 500 quid on the map. The car stalls much much easier.

It is understandable that introducing a new map will affect other aspects of the drive but I think the drive is compromised too far.

What are peoples thoughts on this or am I missing something?

Regards

Stuart

 

Youre missing something.... I only just manage to break traction in the dry if I am really fooling about and I have over 500hp..... And i do not have DCCD

 

clutch is slipping. my guess.

 

They replaced the clutch at the same time

 

It is a TD Racing map so I assume it would be a quality map. I do seem to get a lot of clutch judder as well so it may be clutch related.

 

What power are you running ?

 

Nothing spectacular. Only 270 BHP.

 

All the tyres or just the rear etc could your centre diff be knackered. You shouldn't be able to spin them with that little power.

 

I very much doubt it is wheelspin with just that amount of power. I think you have a clutch related problem.

 

Lol my 480bhp car will not wheelspin in the dry as above sound like the clutch is slipping

 

Well on the positive side it means its the clutch and not the map They can damn well fix the clutch. I am taking the car to the local garage tomorrow to get it checked out.

 

Either that or the centre diff is away and front wheels are only getting drive but defo sounds clutch related

 

Never had any wheelspin with my mapped WRX in the dry, slight bit if you launched really hard in the wet, but that was all.

 

Does it smell really horrible when it "wheelspins"?
Does it "wheelspin" in 3rd, 4th, 5th? If the answer is yes, it's your clutch...

 

surely it's got to be the clutch

 

In answer to peoples questions the wheelspin only occurs in 1st. As for smell, not that I have noticed.

 

Hopefully will know on Thursday whne I gt it back.

 

crap tyres?

 

What pirelli tyres do you have fitted and what presure are they at?

I've never experienced wheel spin in the dry on any dccd setting and mines running 442ftlbs

 

So to update you I took it to the garage. I had them check the tyre pressure all round as well as per door guide (ifyswim) They drove it and found no clutch issue. To be fair to the guy driving he was a very careful chap and it was a bit like driving Ms Daisy

Doing a bit more investigation.. Wheelspin kicks in at 1100 RPM in first. Let me put it into context, I got overtaken by a Yaris whilst trying to start without wheelspinning

 

As said before there is defo somethig wrong either that or you have the worlds worst set of tyres, im running close to 500bhp with dccd and in the dry im lucky if i get a miniscule amount of wheelspin(pulling away hard from standstill) unless i launched it with the diff open.
At 270bhp with nearly 50/50 split and its struggling for grip tell me that something aint right.

 

Is it possible it is a ****ty map? How can I rule out either that or clutch ?

 

Lol how can a ****ty map give you wheelspin?
It will be the clutch slipping as you are trying to put power down, the garage that drove it probably never drove it hard enough.

 

I have no idea hence the question. I just drive the thing

 

When you say its wheel spinning is this just driving on boost or are you side stepping the clutch and launching it away from lights?

 

Who has been working on the car and who mapped it.

 

Wheel spin at 1100 rpm, is this a wind up or what, the only way that's going to happen is if you have 3 broken drive shafts.

 

The best way I can describe it is that if I want to avoid wheelspin I have to very slowly blend the clutch and press the accelerator so there is no "jump on, jump off" the clutch if that's what you mean.

 

Lol just noticed that wtf only way it lose grip at they revs is if you were driving on the discs

 

It was serviced by API and the mapping was done by Thwaites Developments if I recall correctly (API send out for the mapping service I found out after the fact)