How can I tell when the cylinder is full based on basic info like head flow #, cam, intake, rpm.

Trying to spec out a cam for optimum area under the curve (DCR will be 8.6-9.0). The motor is a 6.0 ls6 intake, afr 205 heads (SCR=11.25:1), pace setter headers, full exhaust.

 

need to get your hands on the dyno sim software. Good ****.

btw, no idea, can't help ya. LOL

 

any reccomendations?

 

Flow @ 28" = (CID * RPM * .000978474) / Number of Cylinders

X = (364 * 6500 * .000978474) / 8
X = 289.4 (cfm)

RPM Range = (Cylinder Head Flow@ 28" * Cylinders * 1022) / CID

X = (289.4 * 8 * 1022) / 364
X = 6500

Just some **** I dug up. You can see that if you take a head like what AFR provides, the cam can get really small to get you that very high avg. tq. Good heads require less cam for a desired rpm range. If you want lots of rpm then get bigger on the cam also, but if you wanted that you wouldn't have chosen the 205s. Maybe some ETP 265s. LOL

Finding the ideal cam is going to come up to knowing what to do with the valve events. Best to find a valve event calculator and a bunch of dyno graphs and find trends. See what 4* of advance does to the shape of your torque curve. What does a wide LSA do in these motors? How much exhaust lobe is requires for 6500 rpm? The pros know these answers the best and its mainly due to experience and much less of formulas.

 

This is what Ive come up with so far for high VE's early in the rpm but DCR is 9.42511739822109 Id like to keep the Ve's up but I dont see that DCR happening with 93 octane