When I'm looking at pistons how can I calculate whether I will have enough clearance with the valves. I know to clay it during assembly but I don't think it would be too hard to buy pistons and cams that are NOT ever gonna work together. Then again I probably don't know so much. The reason I'm wondering is because I see my stock B18C1 pistons actually add to the size of the combustion chamber and on the other end of the OEM spectrum those CTRs take away big time, bumping combustion chamber volume up over 9cc and the CR up to 12.1:1. Seems like things are fetting tight in there to me? Is it just experience that tells you what works and what doesn't?

 

 

honestly, it all depends on what cams and pistons you get. For instance, you can get JUN III and a 12.1:1 compression piston, and have them work. Your tolerances will be close but with proper tuning you will never have any issues. Now if you were to get the same set up and then mill your head or something then you'll be raping the valves to the pistons (what I did)..... Then you get to start all over and spend some more $$$ so.... talk with whatever company you're going to buy cams from and see what the maximum compression is for your car and cams. That way you KNOW you'll be safe for years to come.

 

What's up Advan. Some people learn the hard way and others learn from those who did!!!

 

yeah ain't life grand?!!! no matter what you think of there has been someone who has done it and can tell you about it in advance. Research is the key to making a super cam motor run. Think about what you want the car to do and how big you wanna go, then find out about the bottom end.