 Track vs Street
Regarding delrin vs stock(rubber) bushings, first question to answer is:
Is this going to be a dual use car? 90% track & 10% street (getting to the track) or 10% track and 90% street or some other mix. Is this your only transportation and thus Daily Driver, or is this going to be the track, nice weather and occasional use car?
Answers to those questions will alter the answer to your question. Delrin and similar bushings are less compliant than the stock or rubber bushings, thus if you want to drive it on the street, consider the harshness and noise parameters - delrin will likely be both harder and squeakier than rubber.
Those considerations will apply to street vs sport vs race shocks, struts and springs. Also, with a numerically larger diff, the revs at highway speeds might make highway driving less happy.
Lots of choices, I'll bet every one has been thoroughly explored in postings here.
Welcome to the Ti group, hope you enjoy. |