I am considering a Surefly for my Parallel valve IO540 with 9.5 to 1 pistons. This would be a single installation with a slick on the other side. I have read most of the threads here and on other sites. Overall it appears the Surefly has had a very trouble free rollout in comparison with other EI options. There have been issues but most but not all seem installation related. The reliability at this point seems almost stellar for a new product.
My current setup has the mags timed at 23 degrees. My plan would be to set the base timing on the Surefly at 23 also. This would keep both ignitions at 23 anytime the engine was above 25 inches MAP. Max advance at 2700 RPM would be about 33 degrees. If I understand what I am reading correctly that will give me a effective advance of 30 to 31 degrees with the fixed slick. My CHT’s are currently quite good for a Rocket and rarely exceed 385 even when leaning during climb.
I would appreciate any comments and would like to hear from others especially if your running the 6 cylinder version. The 4 cylinders version also seems to reduce fuel flows. I hope that holds true for the 6.
G
My current setup has the mags timed at 23 degrees. My plan would be to set the base timing on the Surefly at 23 also. This would keep both ignitions at 23 anytime the engine was above 25 inches MAP. Max advance at 2700 RPM would be about 33 degrees. If I understand what I am reading correctly that will give me a effective advance of 30 to 31 degrees with the fixed slick. My CHT’s are currently quite good for a Rocket and rarely exceed 385 even when leaning during climb.
I would appreciate any comments and would like to hear from others especially if your running the 6 cylinder version. The 4 cylinders version also seems to reduce fuel flows. I hope that holds true for the 6.
G