Mythbuster: continuing project thread of my 1303 '75

[judgie]

is the small dip at 4000rpm the cam coming on? my n/a engine has the same small dip at 4000rpm as it comes on cam. very good numbers and i hope we can match your numbers with our new engine.

[Wally]

Originally Posted by judgie

is the small dip at 4000rpm the cam coming on?

Calling that a dip or even a small dip is somewhat eggagurated perhaps, but I think I understand the spot you mean.
But no, thats not the 'cam coming on' imo. Cam comes on much sooner then that, as does boost. I'am sure I can tune that out if I wanted to, but it would be for visual pleasure only. Its not like you feel that minute change in rising rate hp-climbing

I think the engine is now 'perfect'. Early super high torque and very high hp when you step on it some more. It does everything you throw at it. I wouldn;t know what to change or what would make it better. It also picks up from 1200 rpm onwards in 3rd gear (mine is a long one too) crawling through town.
So, I was thinking of selling the engine and all ancillaries that make it work (for way less then the parts cost alone) to finance my new '36hp Challenge' -love and I would also love to see the Apfelbeck-project through someday.
Not sure if there is a demand though.