DarthRacer
Hardcore RCTalk User
I've seen many posts on various forums of problems with the HPI S-25 in the Savage SS and .25 RTR. Problems include engines damaging cranks and pistons on several tanks of fuel, very lean running and high heat temps.
If you haven't already heard, HPI has let us know that there is an issue with the backplate on these engines. The screws have not been torqued and locked down properly when they were assembled at the factory. Here is a post on HPI's forum that addresses this and it tells you what to do to fix it. I just did it on my SS and I could not believe how easy the bolts came out of the backplate. You MUST do this unless you have one of the updated kits. Check out this link : http://www.hpiracing.com/rcforum/showthread.php?threadid=68008
If you haven't already heard, HPI has let us know that there is an issue with the backplate on these engines. The screws have not been torqued and locked down properly when they were assembled at the factory. Here is a post on HPI's forum that addresses this and it tells you what to do to fix it. I just did it on my SS and I could not believe how easy the bolts came out of the backplate. You MUST do this unless you have one of the updated kits. Check out this link : http://www.hpiracing.com/rcforum/showthread.php?threadid=68008