bick Posted October 23, 2004 Report Share Posted October 23, 2004 JUST HAD MY TOPEND DONE, AND IT HAS PRO X PISTONS. HAS ANYONE HEARD OF THESE? ARE THEY GOOD. I THOUGHT THEY WEE GONNA PUT PROLITES IN. Quote Link to comment Share on other sites More sharing options...
DIRTBIKEZ Posted October 23, 2004 Report Share Posted October 23, 2004 (edited) Did you try searching? Try HERE you may find what you're looking/not looking for. Edited October 23, 2004 by DIRTBIKEZ Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted October 23, 2004 Report Share Posted October 23, 2004 we put some in my brothers old banshee. they seemed to wear out quickly. or at least the rings maybe. Quote Link to comment Share on other sites More sharing options...
Tim C Posted October 25, 2004 Report Share Posted October 25, 2004 I think Duncan Racing uses them so they must be pretty good Quote Link to comment Share on other sites More sharing options...
tats4life Posted October 25, 2004 Report Share Posted October 25, 2004 I think Duncan Racing uses them so they must be pretty good they do and they SUCK.......there known for siezing....get wiesco's. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted October 25, 2004 Report Share Posted October 25, 2004 I think Duncan Racing uses them so they must be pretty good they do and they SUCK.......there known for siezing....get wiesco's. yep. my bro sold his to this guy and it locked up. Quote Link to comment Share on other sites More sharing options...
MotulMonsta Posted October 25, 2004 Report Share Posted October 25, 2004 I bought a set of pro-x..They suck. They are cast aluminum..they are heavy and make a lot of noise. They wear out the rings too fast, excessive piston slap. All around bad pistons. They take longer to warm up too. Pretty much a direct replacement for stock. Quote Link to comment Share on other sites More sharing options...
RNBRAD Posted October 28, 2004 Report Share Posted October 28, 2004 If your seizing cast pistons your definitely going to seize a forged one. If I was to try and sum up cast versus forged, it depends on whether you want to change pistons more often or rebore your cylinders more frequently. http://www.motorcycleproject.com/motorcycl...ws-pistons.html Check this article out, it covers a lot of benefits and disadvantages of both. I've ran PRO-X pistons for a while with no trouble whatsoever, but they went in a perfect bore, installed correctly and broken in properly with proper jetting. You can't always blame your pistons for a short life. Quote Link to comment Share on other sites More sharing options...
fixitrod Posted October 28, 2004 Report Share Posted October 28, 2004 Here's the summary from that page. Good page by the way. Summary To sum up, the cast piston is light and very dimensionally stable. It is found in high-rpm mass-produced engines that are not subject to modification or prone to detonation. The piston is however fairly brittle, and the cost of its manufacture has limited its availablity outside the OEM sources and applications. On the other hand, the forged piston is inherently heavy and less dimensionally stable. It is a good choice for engines in which detonation is probable, and its wide availability has made it the choice of engine modifiers. The special demands of these end users has given the forged piston its own niche in the powersports market. The next time someone tells you how superior one piston type is over another, tell them the truth. Because, as Paul Harvey likes to say, "Now you know the rest of the story." Hold the fries, please. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.