Matt got out of buggy riding after purchasing a dual purpose dirt bike (and some other events in his life). The Yerfer.net archives were put into Buggy Depot's care, but Travis hasn't had time to to figure out how to incorporate the posts into his forum since the formats and versions are very different. It's a shame because there is some very good information for all buggy owners in those archives. I try to share what I saved or can remember.

I would like to know where I can any information about increasing the horsepower on my 2008 Joyner 650 Sand Spider, i.e. companies offering after market parts, etc.

Post your question in this section to get the right eyes and attention on it:

modfifications-full-sized-buggy-and-sand-rails.html

You have a choice of a Weber carburetor kit from Fast Freddy's or turbo kits from WEST COAST (member on this forum) or Unleashed Motor Sports. Others have upgraded their ignitions to MSD, but I have not seen too many more options.

GhostHunter (member on this forum) is researching big bore options and there is a possibility of running a supercharger, but I do not know anyone to reference.