Originally Posted by TRFMAD
Tell us what diff you use , do you use a Diff, One way or a spool. What car do you use and on what surface do you use it.What type of grip is your track.
I use a one Way in my 415 MSX on a Ashphalt high speed out door surface.With a good grip surface.
One comment I have about this topic is that I had to progress from using a diff to a spool AND a spool to a one-way. I would equate it to my going from Novice to Sportsman to Expert classes over the past three years.
Progressing from the diff to the spool was easy. Someone told me to tighten up my diff (over a period of time) until it was effectively like a spool.
Unlike a one-way, the diff and spool setups offer more off-power braking action. That braking action can be more assuring to up-and-coming drivers.
Practicing (alone) with a one-way is one thing; but, racing with one in traffic is a vastly different experience. You have to give yourself some time to get used to close racing with the one-way.
Back to your question...I use a one-way on my asphalt and carpet RDXs on rubber tires whenever I can...From high speed asphalt tracks to fairly small (but flowing) carpet tracks.
FYI...I still specialize in TC Expert Stock (rubber); but, can run foam tires in major races. None of what I have said is directed to foam tire setups.