Originally Posted by
qstorm777
Thanks!!! My next move was to go to 2.3 swaybar up front. I hadn't thought about droop and camber. Did think about lowering front ride height and going to 1 or 1.5 deg toe out. I had assoc 7K in front and center diffs and kit 5K in rear diff. Just got done changing eb diffs to ptrc 7K front and center. My understanding was that Assoc diff oil is thicker than ptrc and the kit diff oils so I thought that may be causing some problems. Im going to try that out and, if it that doesn't feel right, go up to 997. Is Assoc diff oil really like 2K stiffer than the kit diff oil?
Something we've found is the .3 buggies are very sensitive to droop changes, and their handling can change drastically from what may seem like a small change. So might be something you want to play with in the future.
You are correct in thinking AE oils are thicker, I found this also when I was switching over to PTRC. I'm not positive how much thicker they are, but I would agree that are about 2k thicker. You're right again with the thicker diff fluids, this is one of the more recent changes the team has been playing with in order to get more stability out of the car so it can be driven harder and more aggressively. The idea is that the .3 diffs have been designed to be freer than the .2 diffs, so in order to get the same feel from your diffs when switching to the newer car you'd go up 2k on diff oils.
In general, for those using PTRC fluids 775 is still a good starting point, but is on the light side for this car and that brand of oil. In the future 997/10 10 7 will likely become more often used for the reasons I stated above. Give it a try and let us know what you think!