12 hours ago, R_Blue said:

There are expected places of stress on chassis. I think those places are strengthened too. So if you install a strut brace, will it impose a dramatic change to where the chassis flexes?

are they? 

Favorit chassis was desinged with very limited F.E.A. software, pre production cars had a tendency to crack or pop their windshields due to flex.

imho those chassis lack strengthening elements, which were added to felicia with the aid of volkswagen, sadly I cannot tell you were stress concetration is going to occur if a brace is fitted but i would not worry too much about it since in the fellys they were fitted from factory, albeit slightly flimsy ones.

On that not you can always conduct the metal wire test.
Take a piece of fine metal wire and wrap it VERY tight in betwen the 2 strut towers (from the bolts), drive the car aggresively, open the bonnet and see if the wire has lost its tension and if so by how much. That will give you the real world amount of chassis flex that you are expiriencing

From the ''To be, or not to be'' we are now in the dilemma ''To brace, or not to brace".

 

😁

5 hours ago, Thefeliciahacker said:

imho those chassis lack strengthening elements, which were added to felicia with the aid of volkswagen, sadly I cannot tell you were stress concetration is going to occur if a brace is fitted but i would not worry too much about it since in the fellys they were fitted from factory, albeit slightly flimsy ones.

 

The factory strut braces were (supposedly) fitted to help control the front crumple zone - they were fitted on models with airbag(s), which have G-sensors on the center tunnel, so I guess it'll put more stress over that area on the Favorit in the event of crash (center tunnel and its connection to front chassis rails was one of the reinforced areas on Felicia). Not sure if it'll have similar effect during normal operation.

Edited 8 September, 20223 yr by Papez

On 08/09/2022 at 09:37, Thefeliciahacker said:

On that not you can always conduct the metal wire test.
Take a piece of fine metal wire and wrap it VERY tight in betwen the 2 strut towers (from the bolts), drive the car aggresively, open the bonnet and see if the wire has lost its tension and if so by how much. That will give you the real world amount of chassis flex that you are expiriencing

Clever method.

 

On 08/09/2022 at 14:44, Papez said:

The factory strut braces were (supposedly) fitted to help control the front crumple zone - they were fitted on models with airbag(s), which have G-sensors on the center tunnel, so I guess it'll put more stress over that area on the Favorit in the event of crash (center tunnel and its connection to front chassis rails was one of the reinforced areas on Felicia). Not sure if it'll have similar effect during normal operation.

You are like a living classic Škoda encyclopedia. Also when you post, you always land it right on spot like Thor's hammer.

On 08/09/2022 at 14:44, Papez said:

I guess it'll put more stress over that area on the Favorit in the event of crash (center tunnel and its connection to front chassis rails was one of the reinforced areas on Felicia)

 

Some manufactures have done not rigid strut braces

https://justjap.com/cdn/shop/files/cusco-front-strut-brace-type-alc-os-aluminium-carbon-fits-mazda-rx-7-fd3s-125.jpg?v=1713134137

In case of side hit (road accident) they ''brake'' and save the opposite side from deformation but in some supercars they have a strong-rigid Δ or X style.

https://gpower-usa.com/cdn/shop/files/M4CSL-StrutBrace-2_1024x1024_jpg.webp?v=1712607924

 

The common believe here is that Felicia in rear has semi-rigid axle so a rear strut brace won't help at all.