MSGHUFF

iTrader: (7)

Great work on that calculator pianoprodigy! This is by far the easiest one for me to use thanks

Beast96Z

iTrader: (21)

Then the best you can do is guess. Add 25-27* to your IVC and use that number as a general range of DCR. What kind of cam is it? Does it have lobe numbers on the butt?
EDIT, just saw the other post. Being that it's a Flowtech cam from Ed, you can get the .006 duration from him. Either way what I stated above will get you very close.

pianoprodigy

iTrader: (1)

Thanks. That was the idea. I just made J-Rod's calculator easier to understand.

Beast96Z

iTrader: (21)

Using the compression figures Ed gave you, your .006" duration should be 298* and you .006" IVC should be 77.

viewsonic

Thanks for all your help guys!

So is the general consensus that at

12.3 SCR and 8.75 DCR this car will be a monster with 93 octane?

SonofaBish

iTrader: (5)

quick question on this...
i dont have anythign with me here at work, and all i knwo are the cam specs at .050 ... but the spreadsheet calculates everything off of what the specs are at .006 . is there a general method to finding what everythig is at .006??
my cam is 232/230 .580/.580 110LSA. Any help would be great! thanks

SonofaBish

iTrader: (5)

bump!

dug

iTrader: (10)

could someone calculate mine? I dont have excel. Its an original ls1(heads never removed) and the cam specs are 281 @.006" with 114 lsa and 111 icl.

Beast96Z

iTrader: (21)

Theres no methodical way of figuring this out without cam specs at .006". Results from most LS based cams have shown that you need to add 25-27* to you .050 IVC for a very close guesstimate.

Dug, I get 7.8 DCR for yours.

dug

iTrader: (10)

thanks

Spinmonster

You set up static compression at 12.3 without knowing what the DCR would be?

viewsonic

DCR is 8.75:1