mx1986 Posted May 24, 2013 Author Report Share Posted May 24, 2013 JWow how'd u get the squish right custom domes? Quote Link to comment Share on other sites More sharing options...
possum Posted May 24, 2013 Report Share Posted May 24, 2013 You usually have the step on the dome cut deeper to compensate for the stick out. In order to get the squish correct. I had to do the same thing. Quote Link to comment Share on other sites More sharing options...
Wildcardracing Posted May 24, 2013 Report Share Posted May 24, 2013 Wow! 17cc domes on a 10 cub at 1k elevation. That will put you around 18.6:1 UCCR. I set mine up with 20's at 4500' assuming a cub with std deck heights. You've got way too much compression IMO. You'd be much better off to go to a larger dome and less compression. High compression motors can and will fight themselves in the higher RPM's. As you approach the peak efficiency of your pipe/porting the dynamic compression will dramatically increase well above cranking pressures. To much static compression will kill the motors ability to over-rev and can slow the motors acceleration. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted May 24, 2013 Report Share Posted May 24, 2013 Well said Brandon. Too many people want to "just slap a dome in" and get peak performance. There are too many variables...especially on a cub. Gotta know if it's out of the hole, trapped volume, UCCR... Quote Link to comment Share on other sites More sharing options...
mx1986 Posted May 24, 2013 Author Report Share Posted May 24, 2013 Thanks helpd me a bunch. Quote Link to comment Share on other sites More sharing options...
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