RE: Impreza STI vs Evo V: Foes Reunited

[Gary C]

Hol said:

Gary C said:

Hol said:

Gary C said:

Hol said:

I am guessing it was the GSR.

The active yaw control rear diff was a very good development by Mitsubishi. I drove one at Bruntingthorpe and the ECU corrected my attempts at deliberate oversteer every time.

But, at the end of the day, it is what it is intended to be - A driver aid.

Disagree dismissing it as a 'driver aid'. Without it, the chassis setup would have been almost undriveable.

Mine did not react to the driver to undo a mistake (ie driver aid) rather is made the chassis react in a predictable way. It did feel strange at first because it would give the impression that the car was rotating so fast on turn in, that huge oversteer was bound to follow and when you instinctively wound off some lock in preparation to catch it, the ayc would prevent the snap oversteer.

It might be a small difference, but I see it as a chassis tuning aid ie it makes the car respond in a certain way. Mine would oversteer on demand on roundabouts, 4 wheel drift at high speed while being stable and never, ever understeer. it did have the Motorsport ECU for the ayc and was well worth it (just wore out the ayc) but I believe the standard program worked the same way just slightly slower in actuation.

15 years ago, when a very few company Director types and IT peeps were importing EVO fours, fives and sixes and bringing them to Lancer Register track days the saying was that the AYC System could make a talentless driver into a good driver, and a good driver into an excellent driver.

Within two years the EVOs had taken over the MLR.

Not sure of the point there.

I just feel that a driver aid, is something that only intervenes when you make a mistake, then takes over and restores control. Whereas the ayc is much more of a device to set the handling characteristics of this chassis. You can still bin one big style. However I would concede that it is an aid in so far as it maintains control of the rear to prevent it spinning which reduces the reliance on the driver to do so.

Took my old ayc to bits. Was a fascinating bit of kit (then BMW started crowing about how they had the first system that worked like this in the x6).

So your point is that something is only an aid if it helps you once you HAVE lost control of the car, as it helps electronically to divert power and correct the mistake.

Rather than something that STOPS you loosing control in the first place by diverting power and correcting a slide - in such a way that you were not aware of it.

I guess we do just draw that line differently the,...

Question.
Have you driven an RS version of your car?
A totally different experience on the tyre limit that really drives home my point on how AYC makes a huge difference to what is essentially the same car.

Edited by Hol on Sunday 20th April 09:25

Yes, different lines.

I feel the ayc is part of the way the gsr drives, whereas something like a 407's stability control is a driver aid.

Don't have the Evo anymore. Got an 89 carrera now with no driver aids apart from the steering wheel

[iloveboost]

Ved said:

And your source is...?

Viscous is 50/50, by its very nature but when there is slip detected front or rear, it can lock and allow the rear or front a greater proportion of torque. There's no real answer, only limits, as when moving, just as the LSDs across the axels behave, the answer is always it depends. For example, if you fully lock a DCCD model and try to do a tight three-point turn, you'll notice the front tyres grip and skip. With an open diff this isn't there as the torque is being distributed proportional to the grip on each wheel. This behaviour is the same on UK non-DCCD models such as mu current one. So while it may be 50/50 at rest it varies greatly when in actual use. Doing this manoeuvre, or just some tight circles with is also a good way to test if any of the diffs are knackered.

But I could be wrong

GravelBen?

Edited by Ved on Saturday 19th April 17:56

I'm just trying to be helpful, what are you trying to be?
But I could be wrong.

Edited by iloveboost on Sunday 20th April 21:47

[iloveboost]

Ved said:

The problem is here that I'm nice about not knowing everything and trying to be helpful. I'm also honest about no t knowing everything. I make a mistake and people like you moan about it and joke about it. What does that say about you?

[Ved]

iloveboost said:

The problem is here that I'm nice about not knowing everything and trying to be helpful. I'm also honest about no t knowing everything. I make a mistake and people like you moan about it and joke about it. What does that say about you?

That I take things less seriously than you? Relax, it's all opinions until there's a definitive answer. Mine's just opinion and experience based on owning a few Subarus for a bit.

[Ved]

iloveboost said:

I'm just trying to be helpful, what are you trying to be?
But I could be wrong.

Edited by iloveboost on Sunday 20th April 21:47

I'm attempting accuracy, same as yourself, nothing more.

Edited by Ved on Sunday 20th April 23:32

[pounana]

Happy memories of an Evo IV... my old housemate and I used to go karting and skydiving in spain most months. When the time finally came for me to move out, we agreed an 'end of an era' blast was required.

Cue some late night internetting, and the next day I picked up a sparkly new (to me) white Evo IV, fresh off the boat (still had the japanese chalk pen writing on the windscreen). 4 grand handed over to the importer, about the same to the insurer (30 day full refund cancellation policy...) and off to turbo heaven.

Pretty much immaculate, just needed a stereo and trinket tray. The only mods I could spot being strut bracing and an ignition widget to run the engine while the turbo cooled.

And straight off to the Nurburgring. Nothing says childish confidence like a two thousand mile road trip in a second hand car...

Top tip to any 'ring virgins. We went up to the first instructor we could find, sheepishly introduced ourselves as idiots who were about to kill ourselves unless someone showed us the ropes, and got about ten free laps with him on his season ticket being treated like adults, based on his opinion that "I wish everyone came here with your attitude".

Next morning, new tyres were urgently needed, so we went off to the local rubber shop for more of the same. "You sure you want snow tyres?" was the response. Um.... well, that knocked about a minute off our times, seeing as we spent far less time going backwards across the grass.

All in all, 6 days, 3 sets of tyres, 2 new sets of pads, new discs (after a rather enthusiastic last day, we drove home on the handbrake...), god knows how many tanks of gas and about 60 jumps at the spa dropzone, we made the journey home to London, sold the car for 6 grand, cancelled the insurance for a full refund and realised we'd made a profit on what remains my all time best road trip (and I've had a few).

There will always be a special place in my heart for a little white Evo IV with the goofy floodlights and a chavvy wing. Bless 'em...