haacer

iTrader: (1)

I'm trying to calculate DCR for my 383 build so as to pick the best camshaft.

SCR: 10.85:1
Rod Length: 5.75"

By toying with the DCR calculator a bit it looks like I need an IVC event at about 62 degrees ABDC to get a DCR of about 8.88:1

How do you go about determining IVC for various camshafts? I'd like to compare the various cams in the cam selection guide but I can't locate any data for most.

ss.slp.ls1

iTrader: (36)

Don't know if this helps at all, but here are some stats on a few popular Comp cams:

CC305 220/230 .510/.510 114
Int open 28 BTDC close 68 ABDC
Exh open 83 BBDC close 27 ATDC

CC306 230/244 .540/.510 112
Int open 37 BTDC close 73 ABDC
Exh open 90 BBDC close 37 ATDC

CC502 218/224 .495/.503 112
Int open 26 BTDC close 62 ABDC
Exh open 74 BBDC close 22 ATDC

CC503 224/230 .503/.510 112
Int open 30 BTDC close 66 ABDC
Exh open 76 BBDC close 24 ATDC

haacer

iTrader: (1)

That's a great start, thanks.

I was hoping there was an archive of this sort of information that I had missed in my searches...looks like not