Originally Posted by
sakaguchinet
By the way: I have tried to run the "black" TRF springs on carpet. They were really nice to drive. Carpet was ETS Carpet (Nurburgring Track). So I hope, that there will be no need anymore for me to drive the progressive 53440-style springs anymore.
I switched to them too and they feel pretty good on my 418 with aluminum Samix chassis.
As for the stiffer rear end with 2014 motor mount, I think that's aimed more towards asphalt than carpet. I also felt the BD7 2013 was smoother than the 2014 indoors. The worlds is asphalt so we know the direction that the major contenders should take.