Turbo 1hz

I have a 2001 std wagon and fitted a MTQ(Formally known as Dynamic) turbo system about 6 months ago. Cost $3100 fitted, time taken 2 days. No troubles yet and I have done about 20000km.

While I have noted an increase in power (86.4kw at the rear wheels up from about 50 kw), mainly when towing, I am not totally satisfied with the dollar value of the increase. Saying that I am still running the factory exhaust system and about 8-9 pound boost which is probably restricting the turbo a bit and affecting power.

I am looking at getting some work done for $1900 at Brisbane tuning and turbos(similar to what Chris had done on a GU) and getting a 3 inch mandrel bent exhaust, injector and pump service, mods to the turbo and wastegate as well as a few other bits and peices which will see about a 25-30% further increase.

Fuel economy has not suffered, if anything it has improved when towing.

A question for you,
Did the GXL seats fit straight in with no mods?
Was the console from a GXL? and this fit in without any mods to the lower dash?
How much would I be looking at for the seats and console?

Craig

Gday Andy,

See my post 16437.

Obviously, I don't run a 100 series, but ran a naturally aspirated GQ pushing 33's and 4 inch lift with goodies. When towing a camper weighing in at 1t and the tinny and motor topping it at around the same as yours, boy could you feel it!

I have responded to alot of these questions of late, and do not consider myself to be an expert by any means!

However, you will be told alot of different things by different companies. Of course, whoever you talk to do it better.

For a 4.2 donk, you want a turbo, the right injectors, 3 inch exhaust, boost around 10-12psi, a pre and post dyno report and the tune (fuel increase and/or decrease) done in accordance with the dyno.

With boost comes the need for more fuel, and with more fuel comes heat. With heat comes concern and if not treated right, replacement engines, turbos etc (and angry wives!).

E.G.T's (Engine Gas Temps) are important to measure as I've noticed with the GU that the motor stays cool and the gases get really hot as in 600 degrees. That is a lot of heat!

So, some may say 7 psi is enough, if you decide to run a truck at that, see what you think. If it still feels like a slug, power it up! I ran 80,000k's on the GQ TD42 running at 12psi with moded pump etc with no probs. However, you will need to improve the quality of the oil to stand the higher op. temps.

Fuel, on the GQ, I lost a kilometer per litre. On the GU, I've gained nearly a k/l. But more than likely because of the restrictions on newer motors for environmental protection.

As for intercoolers, you will get quoted 15% increase, but is it worth another 16kw for 2k?

Hope that helps!

Chris.

Thanks Chris
Ive Heard About EGT did you run a boost compinsator on the fuel pump?

Cheers Andy

Andy,
I have since sold it, but I fitted a Denco turbo kit to my 1hz DX 80 series a few years ago. The kit included a Schwitzer turbo & replacement mandrel bent exhaust, and was well worth it IMHO. I towed a Kimberley camper with ease, spent most of the time in 5th gear (running 285's) and it did not adversely effect fuel economy. I think it cost me around $2600 at the time.

Stu

Andy - email me at krobbo@optusnet.com.au and I'll supply you with R&D feedback re same mod over past 2-3 years.