Hi Comp Performance Engines and Tuning

Hi Comp Performance Engines and Tuning LS upgrades, CAM packages n ECU installs,fuel systems, dyno n carby tuning, NOS fits, exhaust fabric

dyno tuning, performance builds, carburettor tuning, mechanical repairs and servicing

This week at Hi Comp.Employee of the Month.Jacob wins a day spa voucher, and a scented candle.šŸ•Æļø Congratulations.
29/08/2026

This week at Hi Comp.

Employee of the Month.

Jacob wins a day spa voucher, and a scented candle.šŸ•Æļø

Congratulations.

26/08/2026

This week at Hi Comp.

This HQ race car in for a dyno tune.

Once in a while, a customer comes along who is a genuinely great person, who is always a pleasure to deal with, and who makes everyone in the workshop just a little bit happier when they visit.
Amanda is one such person.

She owns and drives this well put together car in the HQ race series.

This series is a strictly controlled class, where all engines are sealed by an accredited inspector upon assembly, to ensure that all engines meet tight class rules.
All engines have to have the same camshaft, no head porting is allowed, capacity is controlled, and everyone has to use the standard carby and manifold.

135 RWHP was always about as good as it could get when I used to build these engines over 25 years ago. Our job was to run in and tune this engine which was built elsewhere.

HQ racing is truly all about driver skills, rather than outright power.

Thank you Amanda for choosing Hi Comp for your tuning needs.
We wish you every success in your upcoming race, and for the entire season.
It was a blast having your car, and yourself, visit our workshop.

22/08/2026

This week at Hi Comp.

This beautiful Ford Cobra in for a dyno tune.

With its 302 Windsor engine, Edelbrock carby and MSD distributor, this neat streetcar was always going to be a lot of fun to tune.

The usual suspects all needed some work, like the ignition timing curve, carby needles and vacuum springs.
The secondary air valve also got some attention, with five or six different positions trialed over the course of the tune.

The end result was about 20 plus extra horsepower over the ā€˜as deliveredā€™ baseline.

Thank you Paul for letting us at your awesome ride. These cars are always a blast to tune and drive.
Enjoy your extra power.

17/08/2026

This week at Hi Comp.

This classic EH in for a dyno tune.

This fully modified EH sports a stroker SBC engine with full aftermarket suspension, steering, and all auxiliary systems. Somehow, the body and paint donā€™t match the beauty of the mechanical systems?
Thatā€™s because there is a fully restored, beautifully painted body ready to accept the entire mechanical systems, waiting in a prestige paint shop somewhere in Sydney.
Which, when you think about it, is a sensible way to restore a classic car that is meant to be driven.

Our job was to get the tune right, which involved a new carby, and a recurve of the MSD dizzy. The engine was a little fussy, and jetting took some time to get right, but just look at the results. Must be that beautifully swoopy rig welded stainless exhaust.

Thank you Giorgio and Enzo for trusting Hi Comp with your cars. Iā€™m full of gratitude that the universe has made us find each other.
Youā€™re both very passionate people who love what they do, and live it and breathe it everyday.
Just like me and my team.
Enjoy your extra power.

This week at Hi Comp.We celebrated another birthday this week, and this time it was Dimitriā€™s turn.At 19 years of age Di...
15/08/2026

This week at Hi Comp.

We celebrated another birthday this week, and this time it was Dimitriā€™s turn.
At 19 years of age Dimitri also entered the fourth year of his apprenticeship with Hi Comp this week.
Well done young man, youā€™re almost there. Happiest of birthdays to you. Youā€™re doing a great job.

Somewhere in this group of photos, is a picture of Dimitri doing some actual work.

Can you spot him????

09/08/2026

This week at Hi Comp.

This beautiful classic HR Holden in for a dyno tune.

It was decided after doing a baseline run, that the old and outdated Holley, vacuum secondary carby had to go. Replaced with a brand new Holley, four corner idle, mechanical secondary carby. Both carbys were 750 cfm.

The Chevy HEI ignition system needed quite a bit of work to get right. The timing curve was completely wrong for the engine, and although not my favourite distributor, I was able to rig up an adjustable mechanism for altering the mechanical advance to come up with a timing curve that got results.

Between the new carby, and the regraphed distributor, the engine gained almost 50 RWHP.
A great result for the effort and expense.

Thank you Frank for choosing Hi Comp for your performance needs.
You have owned this car for for over half a century, and have done a fantastic job of looking after it, and keeping it in a better condition than Holden ever envisioned when they first built the car. You are the proud and dedicated custodian of a piece of Australian motoring history, and you are doing a wonderful job.

Enjoy your extra power.

07/08/2026

This week at Hi Comp.

This neat as a pin VF Commodore in for an Exhaust, OTR and dyno tune package.

This package is still a great way of increasing your carā€™s performance and getting that cool sound that everyone loves.

This dead stock VF gained just over 40 RWHP from these three simple mods.

Although the tune was close to factory, it still needed quite a bit of work to get things running spot on.

Thank you to our long time customer Steve for choosing Hi Comp for your performance needs. You certainly have a beautiful car. Enjoy your extra power.

Address

Unit 2/12 Eddie Road
Minchinbury, NSW
2770

Opening Hours

Monday 8am - 6pm
Tuesday 8am - 6pm
Wednesday 8am - 6pm
Thursday 8am - 6pm
Friday 8am - 6pm
Saturday 9am - 2pm

Telephone

+61296770505

Website

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