What is a Genuine Turbocharger?

Within the turbocharger industry the word genuine is used slightly differently to within the Automotive Aftermarket industry.

There are five major manufacturers of turbochargers worldwide that supply turbochargers to the Original Equipment Manufactuer (e.g. Nissan, Holden, Mack, CAT etc) as well as the aftermarket. These manufacturers are Honeywell Garrett, Borg Warner, Holset, IHI and MHI (Mitsubishi Heavy Industries).
As an example Honeywell Garrett manufacture and supply to Nissan the turbocharger fitted to the ZD30 Nissan Patrol. This exact same turbocharger is also supplied through the Authorised Honeywell Garret independant aftermarket distributor network. So whether through the OEM or through the independant aftermarket, this turbocharger is still a genuine Garrett turbocharger.

Denco Diesel and Turbo only supply genuine turbochargers from these renowned turbo manufacturers.

Non-genuine turbos will often be sold using terms that skirt around the issue such as “replacement turbo for original”, or advise that they are built to the same specifications.  You need to ask if it is a genuine turbo to ensure you are getting what you think you are paying for.

There are hidden dangers and costs of buying non-genuine turbos:

Premature Turbo Failure- cheaper copies tend to be so because of inferior engineering and material quality.  This can cause the turbo to fail much earlier than a genuine turbo.  A genuine turbo should last the life of the engine provided oil quality is good

Downtime- savings in dollars initially may be eroded by the less reliable non-genuine turbo

Engine Damage – counterfeit or non-genuine turbos can explode into pieces causing considerable damage not only to the turbo itself.  Genuine turbos are designed to be contained by housings, even in the event of a major turbo failure.  Holset have some excellent footage of the catastrophic results of a non-genuine turbo explosion (courtesy of youtube - Counterfeit Turbochargers – for Holset’s video)

Fuel Economy Issues -  Garrett research indicates non genuine turbos are less fuel efficient than genuine turbos.  This highlights the false economy of the initial cheaper turbo price.  See the following reference: http://www.garrettbulletin.com/assets/Garrett_Eng_Mech_072309.pdf

Less Power – Results will vary but Garrett research showed a non-genuine turbo used in testing achieved only 80% of the power of the genuine turbo. (refer link above for fuel economy)

Download Normalier Garrett's Turbo Trouble Shooting Guide

Download Normalier Garrett's Turbo Boost Advisor

Do you do petrol turbochargers?

Our sales staff can help you with turbochargers for many petrol applications. We only manufacture complete aftermarket turbo systems to suit diesel 4WD’s.

How can I improve my fuel economy?

In many cases resetting or replacing the injector nozzles will improve fuel economy. We recommend that you have your injectors serviced every 100, 000kms.
Save time and money by utilizing our large range of exchange injector products to suit popular 4WD’s.  If your problem is not in the injectors, Denco may be able to diagnose your problem on our Dyno. See Dyno Services.

Does your intercooler system run off the engine cooling system?

No. Our water-to-air intercooler systems are an independent setup, and are separate from the engine. The water/glycol coolant is circulated through the system via a 12v Bosch water pump.

Does the intercooler radiator inhibit the air-flow to the engine radiator?

During in-house testing we found two factors critical to preventing excessive temperature increases in engine water temperature, and reduction of air-flow to the engine radiator.
Firstly the location of the intercooler radiator in relation to the engine radiator is important. The intercooler radiator is positioned to minimize heat transfer and air-flow restriction.
Secondly, the design of the intercooler radiator is more free-flowing than conventional radiators, and is compact in size. It is further fitted with a thermo fan to enhance air-flow.