11-03-2018, 10:46 AM
(07-03-2018, 09:59 AM)Charles P Wrote: I'd shy away from "flat" as a target and look to re-radius to a much broader radius. Whether it's 3/4 or a little larger is a matter of choice but I'm with Dave here. It's the single best improvement to breathing, whatever the rest of the engine
Charles
I'd be interested to know whether radiusing the followers would be a sensible adoption for even a bog standard LC engine, when renovating/maintaining? I'm conscious of Ruairidh's suggestion of any form of bhp upgrade putting extra stress onto the system which could affect longevity. (i.e. different cyclinder heads or taking metal off the cylinder head) but where is the line drawn? Would it be sensible, for instance, on engine that has the later crank rather than the spindly early one? I was also wondering different thicknesses of head gasket would just give that bit of extra help for little effort. [I've got an early engine already sporting a Ruby carb and manifold... presumably as it was what was lying around]