[urq] Lumbar support

[Ado Sigal]

Brandon Rogers wrote:

>At the UPG West event Tony Lum had a great idea that I think he's doing.  (Tony- correct me if I'm wrong here)  He's using a medical bladder behind his leather to create adjustable lumbar support.  That is something I'd really like in these urq seats.  But I got to thinking- I don't really need adjustable - I mean I never adjust it in my other car, I just keep it cranked out to max support - and I need to take the seat covers off soon anyway for some leather repair and heater element install so-  any suggestions on what to stuff in there to create some lumbar support?  Must stand up to heated seats.
>
>Thanks for any ideas-
>
>Brandon
>
>  
>
Simple way to adjust permanently lumbar support on Urq seats, is to 
release the cover which exposes the metal frame and horizontal wire grid 
that provides a degree of back support. Major part is provided by the 
springs, which could be changed to harder rate at the bottom of the 
grid, but for this, one has to dismantle the seat much more, while to 
increase the tension of the wire grid its very easy. If you grab the 
grid wire with pliers and give it as many 45-60 degree twists along the 
wire (while keeping the pliers at 90 degrees to the grid), each twist 
providing more tension. Doing this on mine in the area of lumbar 
support, I ended with 4 twists to each lumbar line, as well as few 
twists to retention the above grid, and ended up with much more 
conformable seat. On my ex Urq, the foam was completely removed from the 
back panel, and only rough mat left underneath the leather skin, which 
with grid tensioning, was better combination, although with 5 mil or so 
of closed cell foam sheet instead of original open cell foam, could be 
even better. If I remember right, solid rubber sheet of roughly same 
size was used on Saab car seats instead of the tensioned wire grid, and 
it was really cheap, which could provide good substitute.

Cheers,

Ado