General > Product Reviews

AST 2 Way Adjustable Coilover Suspension

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danishmkvgti:
After looking at the Photos i can see the are Upside down, same as Bilstein, meaning a bit less unsprung weight. another plus for me  :happy2:

the bruce:
Nice piece of kit !!  :happy2:



--- Quote from: SteveP on September 11, 2011, 10:16:45 pm ---
Some will recommend corner weighing for the optimal setup but for most fast road cars this isn't going make to hugh difference IMHO.

--- End quote ---

In respect to the high spring rates (90 and 110 N/mm) corner weighting is a must, Steve !!



--- Quote from: danishmkvgti on September 12, 2011, 10:22:02 am ---The spring setup front consisting of 2 springs, is the progressive or linear springs?

--- End quote ---

The main springs are linear.
The helper springs are softer than the main springs. I bet they are ''closed'' when the car sits on ground.
So they keep tension when car is lifted or a wheel looses ground contact. This also improves traction
on corner exit slightly.

Furthermore I wonder why AST uses such high spring rate on rear. Depending the coilover construction
used on rear as well the rear spring virtually acts much stiffer than on stock position.
Factory (and most aftermarket) springs (for factory position) are equal to or softer than front spring.

So in the case of AST both aspekts tend to stiffen the rear: outwards positioning and the stiffer spring
itself. This should turn the handling away from understeer to a remarkble amount of oversteer imo.

SteveP:
^^^ The spring rate was select for me by KPM and is closer to the spec they use on the VW Cup Race cars, this is why it's very stiff.

I wouldn't say is has a remarkable amount of oversteer but is more balanced that way with the dampers set to a firmer setting, if you slack off the dampers and move the arb to medium it reverts back to more understeer bias  :happy2:

the bruce:
I'd like to drive this setup on track.   :wink:

Yes, it must be more neutral/oversteer than with a KW Clubsport,
which has stock spring position on rear and 90/70 N/mm front/rear.

But don't forget corner weighing.

Poverty:
I tried these on the Golf R. Very very impressed, waiting for a set for my TT now.

Neutral handling, the front end stayed poised and precise, and it made the golf R so chuckable and easy to drive, like a go kart in effect.

Road manners where very good too, awesome kit.

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