Technical fsd with ss springs?

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Technical fsd with ss springs?

tzagasdog

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Mar 23, 2008
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Hi. I have a grande punto t-jet (not evo). I also have ss springs and its time for me to change me stock shocks and fit the new springs.
I have a question about the fsds' because in the KONI finder it doesnt list the ss model. I have heard that the KONI fsd doesn do well with lowering springs and the springs from the ss package lower the car almost 2mm from the stock abarth.

From another forum

"Maybe I can shed some light on this situation with KONI-FSDs. I work for KONI-North America and was partly responsible for putting together the FSD/Eibach kits we offer here in the US market.

First, you need to understand that FSDs are not designed like other KONI shocks. They really are unique, in that they use two valve assemblies which work in parallel. One is sensitive to wheel frequencies (10-15 Hz) and the other works on the much lower body frequency (1-2 Hz).
The FSD ride benefit is gained using the smaller valve for higher frequencies; it reacts much faster to road irregularities like tar strips or currugated pavement than a standard main valve. When you drive a road with low-frequency, large undulations, the damper reverts back to the main valve system. KONI technicians tune the frequency responses and crossover point from small to large valve and back again for each vehicle.

You will note in the KONI product catalogs, both European and US, the FSDs are not matched to lowering springs. The reason is that, due to their frequency response characteristics, the FSDs must never ride on the jounce bumpers for an extended period of time. If they do (like with some lowering springs), the shock valving will read the jounce bumper as a high-frequency disturbance and back off the damping force. I think that is what some of you are feeling with lowering springs.

We do offer FSDs and the Eibach Pro-Kit lowering springs for some vehicle applications, but only after we have studied the specific vehicle situation. We wanted to offer FSD/Eibach kits on the current MINI, for example, but could not, as that vehicle did not have sufficient wheel travel with the Eibachs to stay off the jounce bumpers.

The Saab 9-3 is listed as an FSD application with the 4-cyl turbo, but not with the US-market Aero V6T, nor Eibachs with any powertrain (they have not yet been approved).

A long explanation for this concern, but I thought you should know the facts. "

So my question is do the koni fsd fit or do I have to go to KONI sports? Because fsd are quite expensive piece of equipment I want to be sure that they will last a long time and they will work fine.
Anyone with koni fsd and ss springs?
 
The Koni FSDs is an Abarth Evo SS option fitted with SS springs.

I have fitted a set to my Mjet with Suplex lowering springs to cope with the extra weight of the Diesel lump. Totally transformed the handling of the car, the best modification I have made to the car.

So impressed I have also fitted a set to Mrs Gs 500 1.4 sport with standard Abarth springs. (I might yet fit the SS springs). Again transfromed the handling.

Iain
 
yeah but are those that the KONI suggest for grande punto abarth in KONI finder are the same with the evos?
 
Yes same car basically apart from the Evo being uglier.

The Konis fitted to the 500 are for the Abarth 500 SS.

They came in an Abarth box too.
 
yeah I just dont know if the fsd that koni sells are the same with the ones that abarth evo ss has.
 
So people which do you think that are the best shocks for ss springs?
 
Which dampers are better for the Punto EVO Abarth Esseesse? These Koni FSD dampers, or the standard Punto EVO Abarth ones?
 
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