DRIVESHAFT ANGLE ON THE S2

[Wacker1]

Hi all,

I'm sure that everyone that owns an S2 has noticed the way that the Driveshafts are angled towards the front of the Car. I'm not exactly sure what benefit this has?
I have noticed recently though, that a small number of Racers have modified their S2's, by reversing the Rear Wishbones back(to original B4 position), cutting a small segment out of the Front section of the Inner part of the Wishbone, allowing(with spacers) the Wishbone to be adjusted in the forward position to make the Driveshafts run level. As well as altering this, I think that the C Hub Spacer(AE Part No 9580) on the Front Wishbones have to be moved to the front section, to re-adjust the Wheelbase.
In doing these modifications, does anybody know how/if this improves the Car? Traction?...etc
If the Rear Wishbones are refitted in the Std B4 position, where do the Rear Shocks attach? As there fitted right on the Rear of the S2, whereas there on the front of a B4.

[elvo]

This is all still in the early stages. The way the driveshaft are angled on the S2 is a result of the design: in order to have the same wheelbase and weight distribution as the B4 (with the S2's batteries in the middle position) and still be able to fit all the parts, sweeping the driveshafts forward was the only way out. A little forward sweep is generally a good thing, but it is on the edge of being too extreme.
The team is now testing various configurations, different combinations of angle and wheelbase, different chassis lengths, etc,... Even different rear arms.
So far, we've concluded:
- S2 works very well on all kinds of dirt and astro
- BUT, it struggles in greasy conditions. 4° toe-in and short wheelbase (mega sweep) is a no-no. 3° toe-in and long wheelbase seems allright. There is a point of no return somewhere, and it's probably those 12° another forum member calculated.
Last weekend at the GP, a standard S2 was great in the dry, but
in the wet, an S2 with the modified chassis and hinge pin braces was miles better. I'm testing both configurations at the euros now (very slippy!!), and the difference between the two is not as big as on greasy astro.
Forward sweep on the driveshafts stiffens up the rear suspension under power. Kind of like anti-squat.