PipeMax question

General engine tech -- Drag Racing to Circle Track

Moderator: Team

Post Reply
User avatar
no pressure
New Member
New Member
Posts: 38
Joined: Wed Mar 12, 2014 10:31 pm

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
Capture.JPG
You do not have the required permissions to view the files attached to this post.

maxracesoftware
Guru
Guru
Posts: 2704
Joined: Sat Feb 14, 2004 4:04 pm
Location: Abbeville, LA
Contact:

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 v4.30  http://www.maxracesoftwares.com/forum/v ... f=14&t=263

User avatar
no pressure
New Member
New Member
Posts: 38
Joined: Wed Mar 12, 2014 10:31 pm

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?

dhidaka
Member
Member
Posts: 91
Joined: Sun Jul 25, 2010 10:19 pm

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?

maxracesoftware
Guru
Guru
Posts: 2704
Joined: Sat Feb 14, 2004 4:04 pm
Location: Abbeville, LA
Contact:

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 v4.30  http://www.maxracesoftwares.com/forum/v ... f=14&t=263

maxracesoftware
Guru
Guru
Posts: 2704
Joined: Sat Feb 14, 2004 4:04 pm
Location: Abbeville, LA
Contact:

Re: PipeMax question

Post by maxracesoftware » Tue Nov 13, 2018 12:11 pm

no pressure wrote:
Sat Feb 10, 2018 8:55 am
Thanks Larry, I'm still on version 3.98. How do I update?
i just released PipeMax version 4.10

v4.10 is more accurate than previous release v4.00

v4.10 fixes small Bug in Weather HP Correction equations

v4.10 fixes small Bug in Camshaft recommended Specs

v4.10 adds additional Header Specs calculated Data results

v4.10 includes a couple more example Simulation Files
and corrects some typos in a few other included Simulation Files

Download and Install PipeMax v4.10 then Register to receive your UnLock Code
PipeMax v4.10 Download Link :
http://www.mediafire.com/file/h4p8dqvy8 ... 0.zip/file

( please read entire webpage about PipeMax at this Link )
http://www.maxracesoftwares.com/forum/v ... f=14&t=263
Meaux Racing Heads
MaxRace Software
PipeMax and ET_Analyst for DragRacers
http://www.maxracesoftware.com
http://www.maxracesoftwares.com/forum/index.php
PipeMax v4.30  http://www.maxracesoftwares.com/forum/v ... f=14&t=263

ou812
Expert
Expert
Posts: 913
Joined: Thu Feb 10, 2005 11:23 pm
Location: SoCal
Contact:

Re: PipeMax question

Post by ou812 » Mon Nov 19, 2018 12:06 am

maxracesoftware wrote:
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
       
Is a lower Mach-Z factor better? Or?
Brian Hafliger
IMM Engine & Dyno

Image
http://www.immengines.com
http://www.neilhepburn.com

maxracesoftware
Guru
Guru
Posts: 2704
Joined: Sat Feb 14, 2004 4:04 pm
Location: Abbeville, LA
Contact:

Re: PipeMax question

Post by maxracesoftware » Mon Nov 19, 2018 8:20 pm

Is a lower Mach-Z factor better? Or?
Brian Hafliger
IMM Engine & Dyno
these are good baseline Mach-Z factor's
Intake System Range = from around 40 to 50
Exhaust System Range = from around 50 to 60

on the Intake System Range , typically below 40, the Average CSA is too large = lower Port velocity FPS
above mid to high 50's , the Engine will have increasing Pumping losses and HP will fall off
Meaux Racing Heads
MaxRace Software
PipeMax and ET_Analyst for DragRacers
http://www.maxracesoftware.com
http://www.maxracesoftwares.com/forum/index.php
PipeMax v4.30  http://www.maxracesoftwares.com/forum/v ... f=14&t=263

ou812
Expert
Expert
Posts: 913
Joined: Thu Feb 10, 2005 11:23 pm
Location: SoCal
Contact:

Re: PipeMax question

Post by ou812 » Tue Nov 20, 2018 5:53 pm

maxracesoftware wrote:
Mon Nov 19, 2018 8:20 pm
Is a lower Mach-Z factor better? Or?
Brian Hafliger
IMM Engine & Dyno
these are good baseline Mach-Z factor's
Intake System Range = from around 40 to 50
Exhaust System Range = from around 50 to 60

on the Intake System Range , typically below 40, the Average CSA is too large = lower Port velocity FPS
above mid to high 50's , the Engine will have increasing Pumping losses and HP will fall off
Thank you!
Brian Hafliger
IMM Engine & Dyno

Image
http://www.immengines.com
http://www.neilhepburn.com

Post Reply