View Single Post
      06-17-2022, 02:45 PM   #13
the fly
Private
9
Rep
83
Posts

Drives: '95 M3
Join Date: Jul 2012
Location: Atlanta, GA

iTrader: (2)

Quote:
Originally Posted by jvit27 View Post
Maybe you haven't read much about them over the years, but you're one of the lucky ones. My Powerflex fcab's failed within 700 miles. Plenty of others have similar experience without having to go to the track - specifically with Powerflex. And most who go *back* to OEM rubber are much happier for street use.

Additional downsides to poly are them drying up and being squeaky. So this requires maintenance. Thus I say, if OEM rubber are still too soft then go all the way and get the monoball or delrin. They are harder but also less likely to fail.

I've been pre-pressing FCABs for various BMWs as a forum offering for a good 12 yrs or so and know the topic well. Jvit27 speaks the truth. If you have a daily driver used for everyday driving, poly FCABs will be fine. However, if you have do track days and/or drive hard, the heat from the close proximity of the exhaust manifold will take it's toll .

Folks can PM me if they're looking for OE offset rubber pre-pressed in.
Appreciate 1
jvit27108.50