Retrofitting Traction Control to an Impreza

[hewlett]

Has anyone fitted the Racelogic unit? I have a 2.5l classic that's on it's way to 450bhp. I reckon I'd be faster in many situations if I had a decent (switchable) traction control system. Does anyone know of this system on a classic and how good it is on a powerful 4wd car?

Cheers

[Jolley]

I haven't had experience of owning 4wd cars with more than 300bhp, but with those I wish they would break traction more. I would have thought that your right foot would have been more than adequate.

[Vixpy1]

You should'nt need it, even on a 2.5 with 450+ bhp.

[GreenV8S]

It works by looking for speed differences between the driven and non-driven wheels, so I don't know how weell it would work on a 4wd car. I imagine that it would be OK if you are only spinning the wheels at one end, but if you end up spinning all four then it would have no way of knowing.

[_Al_]

Get better diffs. The rally ones my mate uses can put 300bhp down on gravel I'm sure you can find something that'll do the job on tarmac.

[JollyGrnMonster]

hewlett said:

Has anyone fitted the Racelogic unit? I have a 2.5l classic that's on it's way to 450bhp. I reckon I'd be faster in many situations if I had a decent (switchable) traction control system. Does anyone know of this system on a classic and how good it is on a powerful 4wd car?

Cheers

running not disimilar power in a classic.. last dyno at surrey rr showed 420/420 but I have played a but more with the ecu map since.

currently with DCCD centre diff.. open as I haven't got around to fitting controller and rather like it open..
open front diff and plated rear diff..
power is 65% to the rear.. on a wet road 2nd spins up all four wheels but is very controllable and remains in pretty much a straight line or power slides as expected on bends..
3rd squirms lots with the occasion spin of the rears but remains pretty much straight with the occasion correction on the steering that I don;t realise I am doing.

in the dry it squirms lots in second..but 3rd hooks up perfectly.

Getting use to feeding the power in through 1st and 2nd..

I think with the dccd controller fitted and set forward slightly you could reduce the spin more.. not sure I would want traction control taking power away

what diffs are you running?

Simon

[hewlett]

Many thanks all. It seems to me that traction control should be something considered much further down the road once all mechanical forms of optimising traction have been exhausted, i.e, better diffs (standard now), etc. And tbh I wouldn't want traction control switched on always anyway as it'd certainly take some of the fun factor out. Also, I don't need it right now anyway as the standard turbo is on the car for the winter and I need a new set of pistons/remap before seeing 450bhp anyway.