340 Static Compression Numbers and Test Procedure

Thanks YR but I just remembered the article and my link was broken some other good person posted the new link
about rod and TDC and around BDC
just the opposite of SBC and BBC and SBF which screws up us long rod people
we have been focusing on intake valve closed for Dynamic Compression
but
UD Harold thought that exhaust valve closed was more important as it controlled how much residual pressure was i n the chamber when the intake opened
dilution, reversion lots of issues
we have it much easier than the short rod engines around tdc for two reasons at least
we can close the exhaust earlier degree wise and open the intake later than a chevy for the same
result
and the max piston velocity is a few degrees later on the intake stroke
it's easier to open the intake too early and/or too quick on a mopar and stall the flow
(fast rate cam with chevy timing)
one reason to get .050 flows so you can see the overlap flows...
I try and avoid sinking the intake to kill low lift flow but..
and you know I sometimes use 30 degree seats on low lift builds but you have to BVVC as the reverse easier --the opposite of a 50 degree or sunken seat\

I think I'll start a new thread on this cam timing issue so that it;s searchable
and ask everyone to ask their camgrinder _ what do I do with this tiiming card
,050 or max lift center