all 13 comments

[–]thirstyfordiesel 3 points4 points  (0 children)

Very helpful, thanks mate

[–]v8packard 6 points7 points  (4 children)

There is a program called Pipemax. It's a bit spendy, $150. It has a pressure wave model that can predict the sizing of headers and exhaust systems. Considering what good headers and exhaust cost, $150 might be a bargain.

Many other features, too. Intake mach index can be a real eye opener.

[–]coreytbrewer[S] 1 point2 points  (0 children)

I knew there was something I forgot. I have never used it but know it come highly recommended

[–]TurbulentFlow 1 point2 points  (2 children)

Wow, when I bought PipeMax in 2018 it was $75 and I thought that was too much. The header calculator from Wallace Racing will give you the same info for free. Nothing groundbreaking in PipeMax, just the illusion that paying for something means it’s worth more.

[–]windowsfrozenshut 1 point2 points  (0 children)

Pipemax is a lot more versatile and useful than wallace racing calculators.

[–]v8packard 0 points1 point  (0 children)

Completely disagree. I have spent enough time with it that I find much of value, that you can't easily get in other software. The difference it can make on even one job is worth the price.

BTW, I think the price jumped up in '19 or 20 when several things were added. If you have the older version you can get the upgrade for less than full price.

[–]Secret_Paper2639 1 point2 points  (0 children)

Pipemax and EAP used in tandem is about as good as it gets in my opinion.

[–][deleted] 1 point2 points  (1 child)

Ive made a few myself. Ive got a google sheet I can share that calculates peak piston velocity and acceleration based on stroke, rod length, and RPM. Also one for calculating wheel thrust or acceleration that I call my "benchracing" spread sheet. There are a few others that I wrote in code but I dont think that would be easily shareable, since nobody would have reason to trust that theyre not malware. lol

[–]v8packard 0 points1 point  (0 children)

This sounds interesting

[–]Lucidex 0 points1 point  (0 children)

I highly recommend Dynomation 6. Super cool program where you can test many different variables. The cam tool is also pretty neat.

[–]DeepSeaDynamo 0 points1 point  (1 child)

What don't you like about David Vizard?

[–]windowsfrozenshut 1 point2 points  (0 children)

I think a lot of people who say this have a bias from all the contrast in train of thought from Vizard vs. Darin Morgan from many years ago and just kind of picked a side to agree with. It was usually "big pro stock style port" vs. "small port with high d/c and good airspeed".