Jim Allen
Well-Known Member
- Joined
- Jun 7, 2005
- Messages
- 1,622
Thank you for that information. At some point I'll have to make a valve that opens at 24 deg ABDC for the boat engine. Thanks again Jack.Jim i arrived at the timming # with the zimmerman disc. As it is way to much work making new bell drum's. The later open cleaned up the bottom end of the power band,as it is hard to over come the g-force on the fuel system. I did not change the opening in the case window's,just made a new bell drum with different timming # and reset the balance. JackVery interesting. Since you & I are the only people in the world able to make this thing, I would like to ask you some other questions? Feel free not to answer at any time. You know my timing is 34/63 with a symetrical case window of 82 deg & a total bell window opening of 127 deg, which means the window is wide open for 45 deg. I would like to know what your case window timing is & your bell window timing is? Feel free not to answer here. What did you see with the later opening & later closing, since our total timings are 209 deg compared to 208 deg? Are you still dynamically balancing the bell valve?
Jim
Jim
Last edited by a moderator: