RILS Posted May 24, 2006 Report Share Posted May 24, 2006 Ok I changed my compression yesterday to 170lbs this is the only modification everyting else is stock including the filter airbox and pipes.My question is how could this change my jetting,I know alot of you are going to say compression has nothing to do with jetting and I would normaly agree, but this morning I pulled my plugs and they have went from dark brown to medium to dark tan.Can somebody explain this to me.I also went to 111 race gas and same as always running 32:1 maxima 927.I dont understand how any of the changes could effect my jetting. What do yaul think. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted May 24, 2006 Report Share Posted May 24, 2006 Medium to dark tan is what you want. You went to race gas...that doesn't always color plugs as quickly or easily as pump gas. It's probably got lead in it... How did you change your compression? Shaved head or aftermarket? Stock head does not cool as well as aftermarket...could be running a little warmer, burning off more of the premix, too. Quote Link to comment Share on other sites More sharing options...
RILS Posted May 24, 2006 Author Report Share Posted May 24, 2006 I went with the noss head. seems to be running a little cooler. But it runs good just a little less on top but i think that can be expected with that kin of boost in com.Im going to rejet friday with new pipes and filters im hopeing that will pick the top back up. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted May 24, 2006 Report Share Posted May 24, 2006 Whooaa....I just reread your post. Stock Pipes? If you don't pick up more top end with pipes, I'll eat my hat... (ok, make sure no one stuffed a rag down your pipes...) Don't get me wrong, the NOSS head is great, but Pipes are an absolute must first mod on a shee... Quote Link to comment Share on other sites More sharing options...
RILS Posted May 24, 2006 Author Report Share Posted May 24, 2006 Just put the head on because it got here first.They will be trinity pipes and k&n pods. Quote Link to comment Share on other sites More sharing options...
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