Precision Porting

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Precision Porting Precision Porting is a specialist porting and manufacturing workshop for the motorsport industry. We help create fast vehicles, not dyno queens.

As promised, here's some more photos and some special mentions.Reverse engineered in Verisurf Software, Inc. Programmed ...
17/10/2026

As promised, here's some more photos and some special mentions.

Reverse engineered in Verisurf Software, Inc.
Programmed in Autodesk Fusion 360
Billet aluminium supplied from Surman Metals
Machined with tooling from Livetools
Welding by Tig On Welding
EFI rails from EFI Hardware
Mountain motor throttle bodies from
And of course, the man that allowed me to create this masterpiece, Adam from Hawke Family Racing 🍻

So how does one go about creating a tailored billet manifold?

1. Reverse Engineering - Take all the data points and surfaces from the block/head combo needed to create a model that fits the application.
2. CAD - Draw up the model to your desired specs. This is where we can go to town and make everything exactly how we want it.
3. CAM - Program all your toolpaths for each component so the CNC does what you want it to.
4. Machining - Turn those hunks of ally into your pieces of the puzzle along with a ton of swarf.
5. Mock Up - Dummy it all up and pray that you didnt miss anything (which I did.... had to redo the valley plate🤦‍♂️)
6. Welding - Go see Sam to weld the plenum together
7. Final Machining - Flatten off any surfaces that may have warped (in our case, the plenum top moved 1mm)
8. Assembly - Put it all back together with custom o-rings
9. Sit back with a b**r and enjoy your creation.

Every step of that process takes time, more time than anyone who has never done this, can understand.
Luckily for me, my customers are patient and I am greatly appreciative of that.

I greatly look forward to the next project.
See yas next time 🍻

16/10/2026

Billet Big Chief Tunnel Ram!

This is not off the shelf, tailored specifically for the customer's combination.
632 Big Chief Chev.
Fuel rails top and bottom.
Nice big Accufab Mountain Motor Throttlebodies.
4x -10AN in each corner for coolant passages
3x 1/8"npt in the rear for sensors

My finest work to date 👌
There will be more photos tomorrow 🍻

25/09/2026

Runner Length 101 - Read the caption for f***s sake

We are simply using the length of the intake runner (and port) to time the pulses going back and forth from the valve seat to the plenum.
Get that timing right and there is a nice big pressure wave waiting at the back of the intake valve that will force itself into the cylinder to give us a "boost" without any forced induction.

Yes, if you shorten your runner by 1", it will move the RPM band up higher in the RPM.
BUT
If you were able to make the runner LONG ENOUGH to reach the wave before that, you are still tuned to that rpm AND make more power as the pulses have not diminished as much and have more kinetic energy to cram into the cylinder.

We are generally limited by bonnet/chassis clearance and/or class restrictions which dictate the wave that we can use.

If you want to play around with your runner lengths, PipeMax is the program for you 🍻

19/09/2026

I dont flow test manifolds during the RnD.

I will focus on the important things like the length, size, entries and plenum.
If it doesnt flow enough for the combination, start again with something else.
Unless you want to spend 5k-6k for me to chop and weld up your existing manifold (like in a class racing application), just start again.

If you're concerned about bonnet clearance, you must accept the fact that your low rise manifold will destroy horsepower, its just a fact.

Thats why I will always recommend the manifolds from Performance Prototyping and Engineering.
Designed properly from day 1 and all it requires is a port match to get you 90% of your desired results.
After that, its fine tuning for your combination.

18/09/2026

Manifold Tech - The Intro ft. Performance Prototyping

There is a lot of info out there and you can get very lost in the data.
I am here to help simplify it and help you understand.

I will be going through:
- Runner length, how we measure it and why
- Runner sizing, how we measure it and why
- Plenum sizing, single plane vs tunnel ram, why its different.
- Runner entry radius, why this is so crucial to get right

These will no doubt be 2-parters each as I try to explain the definitions of each component and some insight as to why we spend so much time refining these.

Ill see yas on the next one 🍻

12/09/2026

ADHD Content Creation

No word of a lie, my brain operates 10x faster than what can be said, just ask my customers and collegaues.
I am learning to slow it all down to be able to try and put my thoughts on paper, its a struggle.

Closed captions work a treat as I still speak too fast, so hopefully they come in handy for you guys.

Shoutout to the queen of content Bek Blackthorne | SM Manager ✨ for helping guide the way and put the chaos into perspective.

11/09/2026

Cool s**t we make!

Water manifold for all the tunnel ram and custom manifold peeps.
4x -12AN in and either 1x -16AN or 1x -20AN out.
3/8"NPT for a gauge.
The neck is 2" diameter, so you can use a fuel pump mounting bracket to hard mount it remotely.

R.I.P Jai Schluter

29/08/2026

Making s**t for the first time is never smooth sailing.

If you exepct everything to work out perfectly the first time you make something, you will be disappointed.

Thats why we have 1st article products.
9/10 times it will be suitable for fitment testing and showcasing.
We can get it functional with modifications BUT you would never sell it to a customer. This is where we have the opportunity to change things if needed.

There is so much to go wrong in the CAM software, that it takes the most simplest thing to f**k it all up.
We make sure to make note of this with all our customers so no one is disappointed.

Once its all sorted, we can get after it and make it an efficient job where we can all make some money on another aussie made product 🍻

28/08/2026

'Straya 🍻

When you are presented with the choice, buy aussie made.
Why? We actually care about the stuff we make.
We strive to make products that make this country proud.

Now im not talking about aussie companies that import stuff from overseas and call it aussie made, because thats just bulls**t.

Im talking about the manufacturers who make their stuff from scratch in the good ol' land down under.
Yes, we cost a bit more, but the money stays here where it belongs.

Support aussie manufacturing 🍻

22/08/2026

Extra Tall LS Covers

Newest addition to the lineup!
These are currently getting trial fit at The Garage in the shop VX called Blacky.

Designed to fit aftermarket shaft rocker systems like Jesel and T&D where extra cover height is critical.

2x -16AN female fittings for our oil filler and/or baffled insert for a pan vac pickup.

Our products look the goods thanks to the Evolute endmills supplied by Livetools

Address

Kilkenny
Adelaide, SA

Opening Hours

Monday 8am - 6pm
Tuesday 8am - 6pm
Wednesday 8am - 6pm
Thursday 8am - 6pm
Friday 8am - 6pm
Saturday 8am - 6pm

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