PipeMax question

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no pressure
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PipeMax question

Post by no pressure » Sat Feb 10, 2018 1:48 am

I searched and could not find an answer so......

Can someone please tell me What Z-factor Lift is?
and Intake time Area?
Thank you. attached pic
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maxracesoftware
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Re: PipeMax question

Post by maxracesoftware » Sat Feb 10, 2018 3:48 am

]
no pressure wrote:
Sat Feb 10, 2018 1:48 am
I searched and could not find an answer so......

Can someone please tell me What Z-factor Lift is?
and Intake time Area?
Thank you. attached pic
Capture.JPG
here's Help text from v4.00 :

Code: Select all

Intake Mach Z-Factor =  46.3116 % SOS          Exhaust Mach Z-Factor = 66.5537 % SOS
Note : Mach Z-Factor definition = PerCent %  of the Speed of Sound ( SOS ) at the Valve's Curtain Area
       Mach Z-Factor Valve Lift = calculated from Speed of Sound velocity thru Valve Curtain Areas
       System Flow Valve Lift   = calculated from Intake and Exhaust System Flow and Valve Diameters
       Port Flow Valve Lift     = calculated from Intake and Exhaust Port's Flow and Valve Diameters
       Curtain Flow Valve Lifts = calculated from Flow thru the Intake and Exhaust Valve Curtain Areas
       Time Area Valve Lifts    = calculated from User's Camshaft Durations, Curtain Areas, RPM Range
       
Meaux Racing Heads
MaxRace Software
PipeMax and ET_Analyst for DragRacers
http://www.maxracesoftware.com
http://www.maxracesoftwares.com/forum/index.php
PipeMax v4.00  http://www.maxracesoftwares.com/forum/v ... f=14&t=263

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Re: PipeMax question

Post by no pressure » Sat Feb 10, 2018 8:55 am

Thanks Larry, I'm still on version 3.98. How do I update?

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Re: PipeMax question

Post by dhidaka » Sun Feb 11, 2018 5:37 pm

Larry,
Assume you are limited in camshaft lift. If your intake or exhaust "time-area RPM" is much lower than intake or exhaust "system RPM" is that an indication that more camshaft duration would help HP/Torque? Say, 8000RPM vs 9200RPM. Also, what is a good target for intake and exhaust "Mach Z Factor"? My PipeMax says 0.628 intake Mach Z Factor. If that is too high, how does one slow it down?

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Re: PipeMax question

Post by maxracesoftware » Mon Feb 12, 2018 6:06 pm

Thanks Larry, I'm still on version 3.98. How do I update?
v4.00 to be released soon

dhidaka wrote:
Sun Feb 11, 2018 5:37 pm
Larry,
Assume you are limited in camshaft lift. If your intake or exhaust "time-area RPM" is much lower than intake or exhaust "system RPM" is that an indication that more camshaft duration would help HP/Torque? Say, 8000RPM vs 9200RPM. Also, what is a good target for intake and exhaust "Mach Z Factor"? My PipeMax says 0.628 intake Mach Z Factor. If that is too high, how does one slow it down?
yes, if Intake or Exhaust Time-Area RPM Range is lower , it is an indication Cam Durations are too small

you can lower Mach ZFactor by installing a larger Valve and/or lower RPM Range

Time-Area RPM Range and Mach ZFactor, are just "BallPark" extra calculations
that lack additional needed inputs to make them trustworthy , so just look at them as "Trends" , and not as 100.0 % accurate
Meaux Racing Heads
MaxRace Software
PipeMax and ET_Analyst for DragRacers
http://www.maxracesoftware.com
http://www.maxracesoftwares.com/forum/index.php
PipeMax v4.00  http://www.maxracesoftwares.com/forum/v ... f=14&t=263

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