EighTT

What do you think is most responsible for the change in the TT's steering ratio from the Mark I to the Mark II? Control arms? TIA.<p><img src="http://home.san.rr.com/winefinds/1.jpg" border="0">

<B>Brad Willis</B>

<FONT COLOR="#FF6600">2001 225q TT Roadster
No Borla
No Garrett
No Stickers</FONT>

<A HREF="http://home.san.rr.com/winefinds">SoCal Audi TT Club</A>

VAP

You asked/answered your own questions... in a nutshel, thats it completely. "compliance"

Lone Starr (Ivan)

<p>Ivan
<i>Jacksonville, Florida<i>
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"Zorro" 2000MY, 180hp, Fronttrak, Silver/Ebony, MKII suspension, spoilTT
K&N, Garmin EMap GPS, Audi "mask", Cobra R/D

Bracketracer

I'm not supposed to talk about this, but I'm doing a minor modification this weekend to a 225 Coupe and shoud be able to answer that question directly by Monday.

Jason

evan

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Colonel Bogey

What parts have changed in the MKII modification?
1)Anti-roll bars
2)Struts & Dampers
3)Lower control Arm

Since #1 & #2 are bigger/stiffer, impact on turn-in can only be described as "helpful". Hence, only #3 remains. And, what is the most significant change with the lower control arm? Bushings.

MkI has a full bushing at the forward pick-up point while the rear has a partial bushing. Hence, flex in the control arm is towards a toe-out position. The exact reverse is true on all counts for the MKII lower control arm.

At Mid-Ohio, I would set-up my SuperVee formula car with a toe-out alignment (the only track I made an "out" adjustment). My Martini MKII had a rather short wheel base & with toe-out on a very twisty course nobody could beat me there. Not with a Reynard or anything else. It turned-in like...guess what? A go kart.

I bet your MKII hunts less in a straight line than it used to. A car with a tendancy to toe-out will be much more darty.

I have said b/4...If MKII people are unhappy...simply install solid bushings from Suspension Engineering (when released) and you will get allot of the quick turn-in back. But, don't think about a toe-out alignment as a solution...quite unsafe for most people and it will wear your tires quickly. You also will defeat Audi's trick to give you more warning. Remember, the accidents had two principal things in common>
Braking (weight full on front, drive wheels)
Sudden turn-in (turns like a bangee on MKI)

These engineers are damn smart. With the suspension under stress, they have been able to change the toe...first one way, then another.

MiracleMileTT

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2000 Aviator Gray TTQ

Bracketracer

I think you totally nailed it about the bushings, I'll have to see. The whole toed-out angle kinda threw me, though. In my experience, I've found that a little extra toe-in was preferred on any given road course, but I've never driven Mid-Ohio. I think the Acura NSX is a great example of this on a street car. The rears are toed-in on this car, and what a great feeling, there's no waiting for the rear tires to take a good solid set diving into a turn since the sidewalls are already loaded up.

Jason Dale

Just Plain Cliff

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