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Holden Custom Engine Tuning Products

Custom Dyno Engine Tuning

Below are a few of the products that Harman Motors uses and recommends. For more information on these products, and custom dyno engine tuning or other products that we may stock and fit in-house, please call us on +64 03 366 2375

VCM Suite

Using VCM Suite, we are able to tune and adjust your engine and transmission to account for modifications such as: Exhaust System, Induction Modifications, Camshaft Changes, Fuel Injector Changes, Transmission Modifications, Diff Ratio Changes and even Tyre Size Changes which means we are able to get the very best from your Holden along with stunning throttle response and improved fuel economy - feel excited? See more under 'Services'.

- We tune LS1/LS2/LS3/LSA (GenIII GenIV) - L76, L98 - Alloytech V6 Powered Vehicles

Harrop Products

Harman Motors is New Zealand's South Island Harrop Agent. We use a range of Harrop products, and offer our fitting and tuning services.

- Superchargers - Brake Packages - Intake Systems - Engine & Suspension Components

PBR Brakes

The PBR Performance range of brake upgrade options is designed to offer drivers flexibility when looking to improve brake performance. The range includes full brake upgrade kits, performance brake pads, stainless steel braided brake hoses and racing brake fluid.

- Performance Brake Kits - Brake Upgrade Kits - Brake Components

Kelford Cams

We use a large range of Kelford Cams products, using these products we are able to offer reliable engine rebuilds, as well as high performance applications. If you require more information on a specific Kelford Cams product, call us on 03 366 2375 .

- Camshafts - Valve Springs - Roller Rockers - Full range of Valve Train Components

Pacemaker Headers

Pacemaker Headers stands as one of the industry leaders in header design and manufacturing. Harman Motors can supply and install headers for most types of vehicles. We test many different vehicles on our dyno and find Pacemaker's are best value for money on Holden LS1/LS2/LS3/LSA engines. To find out what header best suits your application, please call or email us: click here for the contact page.

- Competition Headers - Tri Y Design - Tuned Design

X Force Exhausts

X Force Exhausts have proven to dramatically increased performance, and in some cases also improve fuel economy. We can install these exhaust systems on your Holden or Ford. Make sure to check out our dyno graphs that show some increases.! Of course each vehicle will be different, so give us a call today to discuss what system would suit you best.

- Big Bore Exhausts - Stainless/Carbon Mufflers - Exhaust Tips - Laser Cut Flanges

Cold Air Intakes

We have quality Cold air intakes for VTII - VF V8's using quality K&N reuseable filter elements.

We have a full range of upgrade packages for the Commodore LS1/LS2/LS3/LSA market from air box kits right through to 383ci complete stroker engines.

Ford fans are not forgotten either with products such as our all new adjustable camshaft vernier gears and billet oil pump gears for the boss V8.

- Cold Air Boxes - CNC Ported Cylinder Heads - Other Performance Parts

Pennzoil Oils

Harman Motors uses and recommends Pennzoil products, for use from general servicing and custom dyno engine tuning to performance applications. We can also use other oils that you may specify.

Products

Content

WOF, Servicing & Repairs

We service all makes and models of vehicles.

WOF's, WOF Repairs, Oil change services, Brakes, Clutches,Tyres, Engine and transmission rebuilds.
Cambelts, cooling systems, pre-purchase checks, fault scanning.

Our experienced staff frequently carry out mechanical restoration work and usually have at least one project in progress at any given time.

Nearly all work is carried out in our workshop by our experienced staff.

A current restoration project is a 1952 Plymouth Suburban wagon.

This car has not been running for approx 20 years.

Daniel has reconditioned the engine and sorted through various other parts to use the best available. He has also done major work on suspension & brakes.

Howard the owner, sources some parts from the states as required.Recently arrived are, new handbrake cables, reconditioned carburettor & new wiring loom.

Howard wants to make the car mechanically very reliable, but keep the paintwork and appearance original – as the rural mail delivery wagon.

It is a type of 'Resto Rod'. Instead of restoring the bodywork to showroom condition it honestly shows the age and reflects the true history of that car. 

Fiat Parts & Service - Classic Car Restoration

Harman Motors has been established for well over 60 years as a family business, now second generation.

During the 1970's we became interested in engine tuning and development.

At that time we focused on American V8s, European cars and in particular Fiats.

Fiats had twin cam engines, timing belts, free flowing exhausts and disc brakes front and rear.   They were well ahead of their time and led the way in performance, road handling, inovation and styling.

The challenge of getting the best out of these cars inspired us and before long we had customers from all over the South Island.   Although there are not so many of those cars around now, the knowledge and passion is still there and we still have a lot of spare parts.   While the oppotunity and excitment for cutting edge technology is now with late model Holdens and Fords, we have not forgotten our roots.

Of all the Fiats produced, the greatest cult interest is now with the Fiat 500 or as branded in New Zealand the Fiat Bambina.

We have wide experience and knowledge with servicing and restoring Fiat 500s.

We have a comprehensive stock of new and used parts.   Everything from new headlamps, brake cylinders, sun roof and engine spares.

 

When David bought his first car in 1973 it was a 1966 Fiat 500 F and he still owns it!.

If you need servicing, parts, restoration or advice, contact David Harman +64 03 366 2375 or email us

We also do all mechanical repairs and restoration projects.

A Fiat 500 project we have worked on

Fiat Bambina This little project Bambina is being completely restored

Handy Tips:

 

Sunroof

When opening the sunroof, always open it fully. Do not just lift the front section as it will catch the wind and chaff through the vinyl fabric (Doesn't look great either).

So, either unclip the front catch and lift front bar backwards, while lifting the centre bar up fully with your other hand. Alternatively, release the front catch while driving at approx. 25 miles per hour. Lift up and the wind will take the sunroof fully back and fold it quite nicely for you!

Axles

The rear axles wear the outer splines mainly because they get rusty. As the suspension goes up and down, the rust acts like sandpaper, wearing out the splines.

Solution: When servicing your 500, put the grease gun point under the outer rubber boots. Squirt some grease in to lube the splines. Do this at every service.

King pins

Grease at every service. Jack the car up first so the suspension hangs under no load so that the grease gets right in. Never get under your car without appropriate axle stands in place - not ever.

Gearbox

1st gear is not very strong. So best to just get rolling with light throttle up to 5 miles per hour then change into 2nd.

Oil is important. To check, the level bung is on drivers side of gearbox just in front of drive axle. Use a 13mm open end spanner.

 

Fiats we are dismantling for used spares and parts are:

Fiat 500 Bambia

Fiat 126 & Niki

Fiat Bravo SX 1998 5 door

Fiat Punto 55 1955

Fiat Uno

Fiat Croma

Fiat 124, Fiat 125, Fiat 127, Fiat 128, Fiat 132.

Diesel Tuning

Check out our Latest News for Diesel Tuning

 

Dyno Day

Taking booking now for our next Dyno Day - Saturday 11th Febuary 2017

 

If you need information on something that is not listed on this site, make sure to fill out our contact form.