Diesel Tuning devices

g'day michael
in my opinion the hi clone dos'nt do anything,i tried em',the ditronic made a big difference right across the rev range.
cheers toohey

On a turgo vehicle, the Hi-clone does nothing, that the turbo is not already doing.

A chip is the way to go, and you can do it yourself.

Regards

Col Tigwell

Every 3ltr Nissan owner who has put the upgrade chip in says that it improved the driveability a hell of a lot.

Mike

If you not necessarily after more power, you could consider an exhaust upgrade.
3" mandrill bent with a straight through muffler.

From what I've picked up here and elsewhere, by reducing the back pressure the turbo spins up a lot easier.

Also apparently the turbo itself cuts out a lot of exhaust noise, hence the "loud" muffler not being a problem.

Could be worth investigating.

Cheers

Go with Rosco's advise as your first option.

then re Diesel Performance Modules;

The reality ie that there are few like products available now (yes I know each vendor is going to say that theirs is completly different to all the others on the market - I can even add my own ENG-TEK range to that).

Essentially they remap engine parameters with the view to more power. How much more power depends on a few things, including the reliability/durability you want from the motor.

Diesel engines are controlled (in the vast majority) by the amount of fuel injected (were as on a petrol you control the air, then try to maintain a desirable A/F ratio). Given that, all Diesel Tuning Modules will all add more fuel. Some will fool the ECU into this by modifying sensor inputs, others will modify the ECU outputs. Some new (mostly European) engines now have provision to modify the ECU program by re-flashing it. This is quick and easy, but will be lost if the dealer ever updates the ECU program to address a manufacturer identifed 'problems'.

You can expect a 15% to 35% power improvement by installing a Diesel Tuning Module.- depending on your vehicle and its existing state of tune. The main thing you should be looking for is TORQUE improvment on a diesel engine, since most diesel 4x4 and truck engines are not operated at red line very often. You may even get more, but care is needed to ensure long term reliabilty.

BEFORE you install a Diesel Tuning Module I would suggest that you do some of the simple things first, like a free flowing exhaust. Go for 2.75" for 3 litre engines. Typically the turbo dump housing on factory TD engines leaves a LOT to be desired, so a huge exhaust system is not going to solve that problem (but will help an drain your wallet). As an example look at the picture of factory dump housing. That matchbox wont go thru the casting from a 4.2 litre TD engine.

By the time you see the temp gauge move much on a long hill, the turbo will be well into the problem zone if you over do the additional power without other mods to retain reliability (an the first one is to keep the EGT to a tolerable level by improvong air flow into and out of the engine).

Hope that clears up some points, and helps you.

Dave

Personally I'm thinking its expensive.

My local exhaust bloke does custom 3" system for 3.0 GU patrol for a bit less. I guess you have frieght to get to WA extra.

I've used 2.75" system for 3 litre TD engines, and it appears to be a good compromise betweem cost & performance. The extra 1/4" above 2.75" gains about 1.kw at the wheels - weigh up the returns on your $.

IF the 'chip' you intend to install is turned up from factory specs be very careful (specially in warm climate like WA). Install a EGT gauge and ensure that you keep them to a safe level! Personally I would not advise turning up the fuel settings beond the defaults, except in a race car (and exclude race use from warranty). I have similar Diesel Tuning Modules :-)

A sample of somebody elses setup, but I use the same guages.

EGT & Boots Guage

Dave
EGT & Boots Guage-TEK
Melbourne