Originally Posted by Stu @ M Developments
Ok,
Detonation in an engine is usually very slight.
A very slight problem will only usually
kill an engine if it occurs for a sustained
period. So if we have say, det at 5500rpm (common for YB).
In 1st gear flat out she spends maybe, what? 1/4 second there?
In 3rd gear flat out she spends maybe, what? 1.5 seconds there?
In 5th gear flat out she spends maybe, what? 5 seconds there?... Boom.
Hope this helps somewhat.
Hi Stu,
so is 5 seconds of even 'Slight' det enough to kill an engine!!?
( this thread is just serving to worry me how engines/maps can go wrong so easy!!!! lol)
also, a questions on fuelling,
(again i am someone knowing very little about maps etc)
I am lead to believe that optimum AFR is around 14.5:1?
(unsure if that is correct!?)
IS this the aim of the 'best fuel map?' to Keep the
AFR at the optimum figure at all times?
or is there conditions where a richer or leaner AFR would be
more ideal?
just wondering! thanks!
PS: very interesting thread!!