MX6.com - View Single Post - Maximum lift of custom cams on stock valves/retainers.

**fredio54** · 7-1-05, 16:18

here are numbers which illustrate what i was saying about lift and flow. very manifold dependent. you'd want ITBs on a serious NA fe3 anyway though...

http://forum.miata.net/cgi-bin/ultim...=1;t=014474;p=

i may bother to graph these numbers for a visual representation of a good place to stop with lift. if getting a custom cam made, you could go higher in lift with the extra duration without infuencing float. then again, youd likely be getting bigger valves for it anyway and thus could get longer stemmed ones to allow extra lift.

fred.

7-1-05, 16:18	#5 (permalink)
fredio54 Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	here are numbers which illustrate what i was saying about lift and flow. very manifold dependent. you'd want ITBs on a serious NA fe3 anyway though... http://forum.miata.net/cgi-bin/ultim...=1;t=014474;p= i may bother to graph these numbers for a visual representation of a good place to stop with lift. if getting a custom cam made, you could go higher in lift with the extra duration without infuencing float. then again, youd likely be getting bigger valves for it anyway and thus could get longer stemmed ones to allow extra lift. fred.