Pipe Max: how to use

Thought i would start a thread on this as i can find no directions on how to calc all the possible info here. Post what ever you have figured out. I have still not figured the VE%. They only let you input head flow at max lift to get your VE% to input in the box for VE. My head flow is 356@.800" lift. That gives me 107.9% VE, which can't be correct because pipe max computes that to 800+hp in my pump gas 511. That to me is at least 100hp off. There must be another way to figure this or am i doing something wrong?

Dave,
Larry has a forum you can join. Should be info on it with your pipemax registration. Part of the forum is visible to the public I think.
edit: http://www.maxracesoftware.com/

Doing a search on Speedtalk forum will turn up a lot of info as well.

I've not approached the VE using the headflow calculator so I'm not much help there. If you have engine dyno info, Larry recommends adjusting the VE until the output on the program matches the hp you actually got on the dyno.

Great info. Thanks. No dyno info, but using 100% VE gets in the ball park compared to other simular builds.

still trying to get logged into maxrace. Having some trouble. Looks like no one else here using pipe max has figured out much about it either.

Sent them an email. Will see what I get from that. My user name and password not working.

PipeMax only knows what it is told. 356 cfm @ 0.800 lift is good for 800 hp on a 5111 short block so PipeMax is giving you a correct answer for that input. But you have to be smarter than the software. Do you have a 0.800 lift cam? If not then the flow at 0.800 doesn't matter.

Have you changed computers since you bought
the pipemax program.. every time you change
computers you HAVE to contact pipemax to get
a new pass into it.. I have had to 4 times

for the VE calc pipemax asks what the head flow was at .800" lift, so that what i gave. I see what you mean though. thanks
Mike, had it updated last year with a new number. Just sent them another email. Thanks

dave i have a convo and some info on speed talk on ve you should read only a couple of pages in and you need net flow intake carb and net lift cheers http://www.speedtalk.com/forum/viewtopic.php?f=1&t=52699

Thank you. I'll check that out.

It would be a good question for Larry.
I think that in older versions, up to 3.85
The VE calc was flow with manifold/carb at max lift times .87
Now in version 3.98, it changes with other inputs?
As an example, with 1.3" lift it calculates Ve% from 1.4967" lift .
Seems like something I would like to know

Received an email back from Larry telling me to use max 725hp to compute the VE with my 511 combo. I'll play with that again when i get a chance. Thanks

No, the cam is a .650" on the intake lobe. The flow numbers that Todd@compititionwedge gave me on these E MW heads are 356@.650-356@.700-356@.750 and 356@.800.

WOW!!!!!!!!!!! That's odd.

I agree, but its what he said they were. Looks like to get 725hp@6800rpm the VE would have to be 96% with this combo. Bump that up to 7000rpm and 96% VE gives 750hp. Not sure where the peak HP will be with these heads and cam.

If you have a SpeedTalk login, you may get something out of this thread that got moved to the Advanced Tech forum: http://speedtalk.com/forum/viewtopic.php?f=15&t=49826

There was some PipeMax stuff brought into it at various points. Maybe it will help...

I don't at the moment, but maybe i can get an account started. Thanks Brad