well theoretically you could run big tubes, if he was like a 470+ cid windsor based blown bad boy race engine

 

the numbers i found said the aussie head had 2.05 /1.65 valves, and then i went and found another site that had 2v cleve flow numbers listed as

Lift I E
.100 68.5 57.2
.200 142.2 89.7
.300 189.0 120.2
.400 196.5 143.5
.500 198.0 159.6
.600 199.5 162.7

link to the flow chart (which was actually linked by soaring here). obviously we have no idea about accuracy of either chart.

i got the valve size here (also shows chamber size, the heads in question would be the 302C 2V)


here's a link to the results using the flowchart i listed.


the crane part number is 363522, and the lunati part number is 61004. the part numbers are clickable so you can easily find the right page on their sites and get all the cam card info.

*edit* do you have some intake options i dont? mine just lets you pick single, dual, tunnel ram, individual runner, tuned port injection, sequential port injection, forced induction. there is no "std flow or high flow" options for the intakes.

 

Maybe because I have the 2007 ProSim DynoSim with Pro Tools. It has a bunch of extra stuff in it, which some of it is make thing more accurate and some are race only or theoretical application stuff.

I have never flow benched a set of Aussie heads, so your info is as good a guess as what I found. If I run the numbers for the z cam given your head flow numbers I get:

Crane Z-274-2: 359hp@5500 & 388ft*lbs@4000

This is more than originally posted, but still not to your levels. Not sure what differences we have at the point.

 

strangely enough, i changed the port flow numbers to the ones you listed, and it didnt change the numbers. that kinda baffled me

im going to go try and find that program your using, newer is usually better
does it list things such as roller rockers, windage tray, etc? that would be nice features to have, as they both add into final HP numbers. i do wonder what they mean by std flow intake, and im guessing that means stock? wouldnt the edelbrock performer rpm airgap be considered a "high flow" intake?

of course, even with your new numbers plugged in its apparent that the Z cam is making more power than the other cams listed. i think that can be agreed upon at this point. did you plug in all the included info on the voodoo cam as well? i'd be curious to see what that nets ya.

 

Yeh...that is suspect that you numbers did not change. Like I said, I have really played with this and DragSim a bunch and gotten it pretty accurate.

I sent you some PMs about the software...the desktop version is somewhat limited but affordable. You can always upgrade if you really like it, which is what I did years ago. After your PM, I looked ProRacingSim up and they are still part of Comp, but are somewhat independent. They have now released a new version of all their software, so it is good to see them supporting it again. They are sending me the update that includes new stuff like 3v heads and much more intake numbers and hopefully more accurate.

I have an Air Gap and based on my numbers, it is a standard flow dual plane. That is why I said I do not know what would constitute a high flow in that program. Hopefully the upgrade will be a little better in that respect.

Here are the Lunati Voodoo 61004 numbers :

342hp@5500 & 391ft*lbs@4000

Now this is cam is going to be more radical because it has much more lift.

 

so the z-series has a little more hp, and the voodoo a little more torque. interesting. i'd note that the z-series will surely be much tamer as well.

 

I don't know about MUCH tamer. The differences will be close to unnoticable except on the dyno.

 

less duration and less lift, it will be tamer.

 

I just noticed a mistake on my numbers on the Crane Z cam (that is why you go by events and duration @ .05 and not advertised b/c the advertise at different positions!!!). Dang cam manufacturers always state events differently and I did not catch that Crane was advertising @ .004 and not seat. I fixed the issue by looking just @ .05. Here are the new numbers.

Crane Z cam: 317hp@5000 & 384ft*lbs@3500
Lunati Voodoo 61004: 342hp@5500 & 391ft*lbs@4000
Comp 280H: 328hp@5000 & 373ft*lbs@4000
Comp 292H: 337hp@5500 & 361ft*lbs@4500

The Crane cam only has 224/230 duration @ .05 compared to 233/241 @ .05 that the Voodoo has. The Comp Cams have 230/230 and 244/244 respectively. The Crane Cam is definitely the tamest of the four. It has less lift and duration of all of them.

 

Sorry for the mistake...I knew better than that.