shee99 Posted September 1, 2007 Report Share Posted September 1, 2007 I have a 99 banshee that is 20 over, a boost bottle, T5s, and a cool head with 22cc domes. The problem I am having is that one of the domes on the cool head keeps pitting along with the piston. I'm not quite sure why this is doing this, I think it might be my jet Quote Link to comment Share on other sites More sharing options...
adrenaline junky Posted September 1, 2007 Report Share Posted September 1, 2007 I have a 99 banshee that is 20 over, a boost bottle, T5s, and a cool head with 22cc domes. The problem I am having is that one of the domes on the cool head keeps pitting along with the piston. I'm not quite sure why this is doing this, I think it might be my jet Quote Link to comment Share on other sites More sharing options...
shee99 Posted September 1, 2007 Author Report Share Posted September 1, 2007 where are you at? If your rding in glamis, 280s are perfect! I'm in Massachusetts, any thoughts on the pitting Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted September 1, 2007 Report Share Posted September 1, 2007 I'm in Massachusetts, any thoughts on the pitting Whats your compression? Whats your dome size? whats your octane? Quote Link to comment Share on other sites More sharing options...
shee99 Posted September 1, 2007 Author Report Share Posted September 1, 2007 Whats your compression? Whats your dome size? whats your octane? I'm not sure the compression but the top end has less than three tanks of gas on it and its 20 over. The domes are 22cc and I run 93 octane with mobile 1 synthetic 2 stroke oil. Quote Link to comment Share on other sites More sharing options...
RIPRuck Posted September 2, 2007 Report Share Posted September 2, 2007 Is that the best 2 stoke oil you can find? How about at your local motorcycle/atv shop? Quote Link to comment Share on other sites More sharing options...
shee99 Posted September 4, 2007 Author Report Share Posted September 4, 2007 Is that the best 2 stoke oil you can find? How about at your local motorcycle/atv shop? I don't know I like it seems to work good. What part of mass are you from? Quote Link to comment Share on other sites More sharing options...
Ducman Posted September 4, 2007 Report Share Posted September 4, 2007 Sounds like detonation, but tipicaly that wouldn't be a problem with 22cc domes and 93 octane. Have you modified/advanced the timming? Too much timming will cause detonation. Do a search on this forum on how to measure the squish. If your squish is to tight that can cause detonation problems as well. Quote Link to comment Share on other sites More sharing options...
shanYE west Posted September 4, 2007 Report Share Posted September 4, 2007 Sounds like detonation, but tipicaly that wouldn't be a problem with 22cc domes and 93 octane. Have you modified/advanced the timming? Too much timming will cause detonation. Do a search on this forum on how to measure the squish. If your squish is to tight that can cause detonation problems as well. I aggree. Check your squish Quote Link to comment Share on other sites More sharing options...
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